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为什么错?感觉挺好的思维就这样慌掉???求牛人帮忙解析代码,,,样例都过了#include<iostream> using namespace std; int main() { int A[101][101]={0}; int N,i,j,k; while(~scanf("%d",&N)) { for(i=0;i<N;i++) { for(j=0;j<N;j++) { cin>>A[i][j]; } } int B[101][101]={0}; int max=-9999999,a,b; int s=0; for(j=0;j<N;j++) { for(i=0;i<N;i++) { B[i][j]=s+A[i][j]; s=B[i][j]; } s=0; } s=0; for(k=0;k<N;k++) { for(i=k;i<N;i++) { for(j=0;j<N;j++) { if(i==k) { if(A[i][j]<=0) s=0; else s+=A[i][j]; } else { if(k==0) s+=B[i][j]; else if(B[i][j]-B[k-1][j]<0) s=0; else s+=B[i][j]-B[k-1][j]; } if(s>max) max=s; } s=0; } } cout<<max<<endl; } return 0; } Followed by:
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