//gcc rm.c -DW=24 -DH=18 -lncurses -include curses.h #-include stdlib.h -include unistd.h
// gobals
int w;int h;int nM;int nBlk;typedef int*map2D;map2D m;map2D que;int p;int iHead=0;useconds_t delayUsec;void init(int m_w,int m_h,int dt){w=m_w;h=m_h;nM=w*h;delayUsec=dt*1000;map2D*maps[]={&m,&que};for(int i=0;i<2;i++)*maps[i]=malloc(sizeof(int)*nM);}
// data model
static inline int pYX(int y,int x){return y*w+x;}static inline void yxP(int p,int*y,int*x){*y=p/w,*x=p%w;}static inline int cycledInc(int*p){*p=(*p+1)%nM;return*p;}int isZeroOr(int n,int x){return(x%n)==0;}int curUse(int(op)(WINDOW*,bool)){return op(stdscr,1);}
//putXX
void putWall(){int y,x;for(int i=0;i<nM;i++){yxP(i,&y,&x);if (isZeroOr(w-1, x)||isZeroOr(h-1, y)) m[i]=1;}}void putCell(){que[cycledInc(&iHead)]=p;m[p]=1;}void putFruit(){int pA;do{pA=rand()%nM;}while(m[pA]!=0);m[pA]=2;}
//game
void game(char*style[]){noecho();curUse(nodelay);curUse(keypad);int ch,y,x,d=1,iTail=0;putWall();putFruit();p=pYX(h/2,w/2);putCell();while((ch=wgetch(stdscr))!='q'){if(ch==(-1)){}else if(ch==259&&d!=w)d=-w;else if(ch==258&&d!=-w)d=w;else if(ch==260&&d!=1)d=-1;else if(ch==261&&d!=-1)d=1;p+=d;if(m[p]==1){break;}if(m[p]==2){putFruit();}else{m[que[cycledInc(&iTail)]]=0;}putCell();for(int i=0;i<nM;i++){yxP(i,&y,&x);mvprintw(y,x*nBlk,style[m[i]]);}wrefresh(stdscr);usleep(delayUsec);}}
//call init,game
int main(){char*deftStyle[]={"  ","[]","()"};nBlk=2;initscr();curs_set(0);init(W,H,100);game(deftStyle);wgetch(stdscr);return endwin();}

// Windows.h, conio.h, limits.h, stdlib/stdio/time
// 当然你要和他一样短，C预处理器 gcc -E 过一遍内联所有常量就行
define w 50
#define h 40
#define speed 100
const char *sNone="  ", *sBody="[]", *sFruit="()";
const int nM=w*h, nBlk=2; int *m;HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
void printp(int p, const char* s) {COORD cd = {p%w*nBlk, p/w};SetConsoleCursorPosition(hStdout, cd);printf("%s", s);
}
int randP() { int pt; do { pt = rand()%nM; } while (m[pt]!=0); return pt; }
#define isZeroOr(n, x) ((x%n) == 0)int main(void) {srand(time(NULL));m = malloc(nM);char* cmd; asprintf(&cmd, "mode con cols=%d lines=%d", w*nBlk, 1+h); system(cmd);for (int i=0; i<nM; i++) m[i] = (isZeroOr(h-1, i/w) || isZeroOr(w-1, i%w))? 1 : 0;int p=(h/2)*w + w/2, d=1, nLen=1, pA=randP();unsigned t0 = time(NULL);char ch; while (!kbhit() || (ch=getch()) != 'q') {d =(ch=='a')? -1 :(ch=='d')?+1 :(ch=='w')? -w :(ch=='s')? +w : d;p+=d; if (m[p]==1) break;m[p] = nLen+1/*decred later*/;if (p==pA) { nLen++; pA = randP(); continue; }int oldMpA = m[pA]; m[pA] = INT_MAX-1;for (int i=0; i<nM; i++) { m[i]--; printp(i, (m[i]<=0)? sNone : (m[p]!=INT_MAX-1-1)? sBody : sFruit); }m[pA] = oldMpA;unsigned t1 = time(NULL);Sleep((t1-t0)/speed); t0 = t1;}
}