REVERSE-COMPETITION-HGAME2022-Week2
REVERSE-COMPETITION-HGAME2022-Week2
- xD MAZE
- upx magic 0
- fake shell
- creakme2
- upx magic 1
xD MAZE
迷宫题,不过不是上下左右,而是只有前进
0-512,1-64,2-8,3-1
每一次v14加上前进的单位后,需要保证map[v14]==32
地图map的大小为4096,即64x64
将map转成64x64的形式,并将map中所有的32化为1,所有的非32化为0
于是0-512-向下8行,1-64-向下1行,2-8-向右8个单位,3-1-向右1个单位,手动走完迷宫即可
map=[0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x23,0x20]
for i in range(64):tmp=""for j in range(64):if map[i*64+j]==32:tmp+="1,"else:tmp+="0,"print(tmp)
# hgame{3120113031203203222231003011}
upx magic 0
输入中的每个字符先左移8位,然后经过一个CRC16变换,结果与数组v14比较
直接写爆破脚本即可得到flag
arr=[0x8d68,0x9d49,0x2a12,0xab1a,0xcbdc,0xb92b,0x2e32,0x9f59,0xddcd,0x9d49,0xa90a,0xe70,0xf5cf,0xa50,0x5af5,0xff9f,0x9f59,0xbd0b,0x58e5,0x3823,0xbf1b,0x78a7,0xab1a,0x48c4,0xa90a,0x2c22,0x9f59,0x5cc5,0x5ed5,0x78a7,0x2672,0x5695]
flag=""
for i in range(len(arr)):for j in range(32,128):tmp=(j<<8)&0xfffffor k in range(8):if tmp&0x8000!=0:tmp=((2*tmp)^0x1021)&0xffffelse:tmp=(2*tmp)&0xffffif tmp==arr[i]:flag+=chr(j)
print(flag)
# hgame{noW_YOu~koNw-UPx~mAG|C_@Nd~crC16}
fake shell
对输入的验证在sub_176C函数,是一个常规的RC4加密过程
直接用密钥"happyhg4me!“解密发现不对,对aHappyhg4me查找交叉引用发现密钥被修改为"w0wy0ugot1t”
用"w0wy0ugot1t"作为密钥解密RC4即可得到flag
#include<stdio.h>
void rc4_init(unsigned char* s, unsigned char* key, unsigned long Len_k)
{int i = 0, j = 0;char k[256] = { 0 };unsigned char tmp = 0;for (i = 0; i < 256; i++) {s[i] = i;k[i] = key[i % Len_k];}for (i = 0; i < 256; i++) {j = (j + s[i] + k[i]) % 256;tmp = s[i];s[i] = s[j];s[j] = tmp;}
}void rc4_crypt(unsigned char* Data, unsigned long Len_D, unsigned char* key, unsigned long Len_k) //加解密
{unsigned char s[256];rc4_init(s, key, Len_k);int i = 0, j = 0, t = 0;unsigned long k = 0;unsigned char tmp;for (k = 0; k < Len_D; k++) {i = (i + 1) % 256;j = (j + s[i]) % 256;tmp = s[i];s[i] = s[j];s[j] = tmp;t = (s[i] + s[j]) % 256;Data[k] = Data[k] ^ s[t];}
}
void main()
{//密钥unsigned char key[] = "w0wy0ugot1t";unsigned long key_len = sizeof(key) - 1;//密文unsigned char data[] = {182, 148, 250, 143, 61, 95, 178, 224, 234, 15, 210, 102, 152, 108, 157, 231, 27, 8, 64, 113, 197, 190, 111, 109, 124, 123, 9, 141, 168, 189, 243, 246};//解密rc4_crypt(data, sizeof(data), key, key_len);for (int i = 0; i < sizeof(data); i++){printf("%c", data[i]);}printf("\n");return;
}
//hgame{s0meth1ng_run_bef0r_m4in?}
creakme2
main函数中的逻辑很清晰
输入经过XTEA加密,密钥key为[1,2,3,4],密文与已知的res比较
进入XTEA加密函数,ida反编译出来就是常规XTEA加密算法
其实不然,查看汇编代码,0x140001139地址处有条idiv ecx指令,ecx是sum左移31位后的结果
即如果sum的二进制最高位为0,idiv ecx会触发除0异常,跳到0x140001141地址处进行处理,使sum^=0x1234567
于是加密过程实际如下
void encipher(unsigned int num_rounds, uint32_t v[2], uint32_t const key[4]) {unsigned int i;uint32_t v0 = v[0], v1 = v[1], sum = 0, delta = 0x9E3779B1;for (i = 0; i < num_rounds; i++) {v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]);sum += delta;if (sum >> 31 == 0)sum ^= 0x1234567;v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum >> 11) & 3]);}v[0] = v0; v[1] = v1;
}
对解密过程做相应的变化,解密XTEA即可得到flag
#include <stdio.h>
#include <stdint.h>void encipher(unsigned int num_rounds, uint32_t v[2], uint32_t const key[4]) {unsigned int i;uint32_t v0 = v[0], v1 = v[1], sum = 0, delta = 0x9E3779B1;for (i = 0; i < num_rounds; i++) {v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]);sum += delta;if (sum >> 31 == 0)sum ^= 0x1234567;v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum >> 11) & 3]);}v[0] = v0; v[1] = v1;
}void decipher(unsigned int num_rounds, uint32_t v[2], uint32_t const key[4]) {unsigned int i;uint32_t v0 = v[0], v1 = v[1], delta = 0x9E3779B1, sum = -946975483;for (i = 0; i < num_rounds; i++) {v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum >> 11) & 3]);if (sum >> 31 == 0)sum ^= 0x1234567;sum -= delta;v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]);}v[0] = v0; v[1] = v1;
}int main()
{uint32_t v[2] = { 0x457E62CF,0x9537896C };//hgame{SE//0x1F7E7F72,0xF7A073D8->H_s0und5//0x8E996868,0x40AFAF99->_50_1nte//0x0F990E34,0x196F4086->re5ting}uint32_t const k[4] = { 1,2,3,4 };int n = sizeof(v) / sizeof(uint32_t);unsigned int r = 32;decipher(r, v, k);for (int i = 0; i < n; i++){for (int j = 0; j < 4; j++){printf("%c", (v[i] >> (j * 8)) & 0xFF);}}printf("\n");return 0;
}
//hgame{SEH_s0und5_50_1ntere5ting}
upx magic 1
elf文件加了upx壳,脱壳工具去不掉壳,于是手动调试去壳
参考:ELF64手脱UPX壳实战
这里没有dump内存文件,直接在ida中分析
在0x401417地址的call rax指令处下断点,此时rax寄存器中保存的即为main函数的地址
F7步入sub_400B8D函数,F5反编译
实际上就是和upx magic 0一样的逻辑,爆破即可得到flag
arr=[0x8d68,0x9d49,0x2a12,0xab1a,0xcbdc,0xb92b,0x2e32,0x9f59,0xddcd,0x9d49,0xa90a,0xe70,0xf5cf,0x5ed5,0x3c03,0x7c87,0x2672,0xab1a,0xa50,0x5af5,0xff9f,0x9f59,0xbd0b,0x58e5,0x3823,0xbf1b,0x78a7,0xab1a,0x48c4,0xa90a,0x2c22,0x9f59,0x5cc5,0x5ed5,0x78a7,0x2672,0x5695]
flag=""
for i in range(len(arr)):for j in range(32,128):tmp=(j<<8)&0xfffffor k in range(8):if tmp&0x8000!=0:tmp=((2*tmp)^0x1021)&0xffffelse:tmp=(2*tmp)&0xffffif tmp==arr[i]:flag+=chr(j)
print(flag)
# hgame{noW_YOu~koNw-rea1_UPx~mAG|C_@Nd~crC16}
REVERSE-COMPETITION-HGAME2022-Week2相关推荐
- 【北邮国院大三下】Logistics and Supply Chain Management 物流与供应链管理 Week2
北邮国院大三电商在读,随课程进行整理知识点.仅整理PPT中相对重要的知识点,内容驳杂并不做期末突击复习用.个人认为相对不重要的细小的知识点不列在其中.如有错误请指出.转载请注明出处,祝您学习愉快. 编 ...
- VK Cup 2016 - Round 1 (Div. 2 Edition) A. Bear and Reverse Radewoosh 水题
A. Bear and Reverse Radewoosh 题目连接: http://www.codeforces.com/contest/658/problem/A Description Lima ...
- 七校联合NewStarCTF 公开赛赛道WEEK2 web wp
也不知道是不是公开赛和内部赛是不是同一套题,week1的题挺简单的 这里小记一下week2的题目 如有侵权立刻删除 Word-For-You(2 Gen) 这题很简单就带过一下吧,报错注入就行 1'| ...
- Newstar Ctf 2022| week2 wp
Newstar Ctf 2022| week2 wp Newstar Ctf 2022第二周题目的wp. 文章目录 Newstar Ctf 2022| week2 wp Crypto unusual_ ...
- HGAME 2019 WEEK2
HGAME 2019 因为week1发的太早了被查水表了...就直接删了... 写一下week2的writeup吧 怎么说呢,week1和week2简直是俩个级别啊... ak了re,crypto,m ...
- BUUCTF reverse题解汇总
本文是BUUCTF平台reverse题解的汇总 题解均来自本人博客 目录 Page1 Page2 Page3 Page4 Page1 easyre reverse1 reverse2 内涵的软件 新年 ...
- 206. Reverse Linked List
Reverse a singly linked list. 反转单链表 C++(9ms): 迭代 1 /** 2 * Definition for singly-linked list. 3 * s ...
- LeetCode 7. Reverse Integer
问题链接 LeetCode 7 题目解析 给定一个32位有符号整数,求其反转数字. 解题思路 如果是简单反转的话,那这道题就太简单了.题目要求判断溢出问题,32位int类型的范围是-214748364 ...
- CUDA Samples: approximate image reverse
以下CUDA sample是分别用C++和CUDA实现的对图像进行某种类似reverse的操作,并对其中使用到的CUDA函数进行了解说,各个文件内容如下: common.hpp: #ifndef FB ...
- C++中std::reverse和std::reverse_copy的使用
std::reverse:反转排序容器内指定范围中的元素. std::reverse_copy与std::reverse唯一的区别是:reverse_copy会将结果拷贝到另外一个容器中,而不影响原容 ...
最新文章
- VSCode如何自动换行,右侧换行间距长度,隐藏右侧代码预览(Minimap代码缩略图滚动条),比对代码差异窗口也自动换行
- ORACLE 创建作业JOB例子
- codeforces700B
- DDos攻击的一些领域知识——(流量模型针对稳定业务比较有效)不稳定业务采用流量成本的检测算法,攻击发生的时候网络中各个协议的占比发生了明显的变化...
- 1030 Travel Plan(甲级)
- Coin-row problem(1139)
- 开源大数据:MLSQL
- 红帽linux开启vnc服务器,红帽Linux上使用VNC
- VC707开发板的IIC控制
- 聊一聊DTM子事务屏障功能之SQL Server版
- 个人账号密码管理体系(密码篇)
- WIN10桌面文件夹图标变黑解决方法~
- 镁光闪存颗粒对照表_详解闪存颗粒的种类
- Unity功能点---模拟枪械射击时的后坐力
- 夜拍王荣耀10 VS同档位旗舰机夜拍功能,实战结果一目了然!
- @31省区市高考时间表来了,祝考试成功
- CAD如何附着外部参照图?
- css 变量_如何将CSS变量用于动画
- ALV 下载到EXCEL里出现的问题
- 南昌大学计算机高级应用,南昌大学计算机应用技术调剂生复试经验
热门文章
- SQL SERVER 的SQL语句优化方式小结
- 生命、生活:同样重要
- pytorch中的squeeze和unsqueeze
- [Leetcode][第459题][JAVA][重复的字符串][子串][匹配]
- python 文件指针在文件末尾_python文件操作及seek偏移详解
- springtboot 引用子工程的文件_xmake从入门到精通11:如何组织构建大型工程
- 操作系统进程调度先来先服务FCFS
- cc、gcc、g++、CC的区别概括
- 【WinCE】流设备驱动简介及GPIO驱动的实现
- 图解WinCE6.0下的内核驱动和用户驱动