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各位大神看看为什么TLE了#include<stdio.h> #include<string.h> int main() { char s[4]; int map[4][4]; int i,j,k; int step=20,path; for(i=0;i<4;i++) { scanf("%s",s); for(j=0;j<4;j++) if(s[j]=='-')map[i][j]=1; else {map[i][j]=0;} } for(k=0;k<1<<16;k++) { int t[4][4]; memcpy(t,map,sizeof(map)); int c=0; for(i=0;i<16;i++) { if(k>>i&1) { c++; int x=i/4,y=i%4; t[x][y]=!t[x][y]; for(int x1=0;x1<4;x1++)t[x1][y]=!t[x1][y]; for(int y1=0;y1<4;y1++)t[x][y1]=!t[x][y1]; } } int num=0; for(i=0;i<4;i++) for(j=0;j<4;j++) if(t[i][j])num++; if(num==16) { if(c<step){step=c;path=k;} } } printf("%d\n",step); for(i=0;i<16;i++) { if(1<<i&path)printf("%d %d\n",i/4+1,i%4+1); } return 0; } Followed by: Post your reply here: |
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