HDOJ 5821 Ball 贪心 (16多校day8 1001) )
题目链接:
http://acm.hdu.edu.cn/showproblem.php?pid=5821
https://vjudge.net/contest/180311#problem/J
题意:
思路:
上代码:
#include<cstdio>
#include<cstring>
#include <iostream>
#include <algorithm>
using namespace std;
#define N 1005
int b[N];
struct Node
{int x;int p;int ps;
} a[N];
int n;
int m;
int t;
bool compare(Node a,Node b)
{return a.p < b.p;
}
int main()
{int R = 0;
// freopen("data.txt", "r", stdin);
// freopen("outWA.txt", "w", stdout);scanf("%d", &t);while(t --){int T;memset(a, 0, sizeof(a));memset(b, 0, sizeof(b));scanf("%d%d", &n, &m);
// scanf("%d", &T);for(int i = 1; i <= n; i ++)scanf("%d", &a[i].x);for(int i = 1; i <= n; i ++){scanf("%d", &b[i]);for(int j = 1; j <= n; j ++){if(a[j].x == b[i] && a[j].p == 0){a[j].p = i;break;}}}int l, r;for(int i = 1; i <= m; i ++){scanf("%d%d", &l, &r);sort(a + l, a + l + (r - l + 1), compare);}int i;for(i = 1; i <= n; i ++){if(a[i].x == b[i]);elsebreak;}if(i == n + 1)printf("Yes\n");
// printf("Yes %d \n",R++);elseprintf("No\n");
// printf("No(%d)\n", R++);}
}
做完发现这是道题说是什么贪心神题,还有什么颜色的情况:https://polebug.github.io/HDOJ-5821-Ball-16%E5%A4%9A%E6%A0%A1day8-1001/
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