HDU 4772 Zhuge Liang's Password

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给你个方块反转三次，

#include<iostream>#include<string>#include<stdio.h>#include<string.h>#include<map>#include<math.h>#include<queue>#include<algorithm>#define LL long longusing namespace std;const int maxn=33;const int maxm=200210;const int inf = 0xffffff;int a[maxn][maxn],c[maxn][maxn];int b[maxn][maxn];int main(){    int n;    while(scanf("%d",&n)&&n){       for(int i=0;i<n;++i)        for(int j=0;j<n;++j){            scanf("%d",&a[i][j]);c[i][j]=a[i][j];        }       int ans=0,t=0;       for(int i=0;i<n;++i)        for(int j=0;j<n;++j){            scanf("%d",&b[i][j]);            if(a[i][j]==b[i][j]) t++;        }       ans=max(t,ans);       for(int k=0;k<3;++k){            t=0;          for(int i=0;i<n;++i){            for(int j=0;j<n;++j){                c[i][j]=a[n-j-1][i];                if(c[i][j]==b[i][j]) t++;            }          }          ans=max(ans,t);          for(int i=0;i<n;++i){            for(int j=0;j<n;++j) a[i][j]=c[i][j];          }       }       printf("%d\n",ans);    }    return 0;}

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