ZOJ Problem Set - 1949 Error Correction

#include<fstream>#include<iostream>using namespace std;int matrix[100][100];int SL[100];int SC[100];int main(){//ifstream cin("acmilan.txt");int i,j,PL,PC,CountL,CountC;int n;while(cin>>n){if(n==0)break;PL=0;PC=0;CountL=0;CountC=0;for(i=0;i<n;i++){SL[i]=0;SC[i]=0;}for(i=0;i<n;i++){for(j=0;j<n;j++){cin>>matrix[i][j];SL[i]=SL[i]+matrix[i][j];SC[j]=SC[j]+matrix[i][j];}}for(i=0;i<n;i++){if(SL[i]%2!=0){PL=i;CountL++;}if(SC[i]%2!=0){PC=i;CountC++;}}if(CountL==0&&CountC==0)cout<<"OK"<<endl;else if(CountC==1&&CountL==1)cout<<"Change bit ("<<PL+1<<","<<PC+1<<")"<<endl;elsecout<<"Corrupt"<<endl;}//system("pause");return 0;}