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Copy pathUva541.cpp
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87 lines (83 loc) · 2.09 KB
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#include <iostream>
#include <math.h>
#include <cstdio>
#include <cmath>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <list>
#include <algorithm>
#include <map>
#include <sstream>
using namespace std;
int main()
{
while(true){
int sizeMatr;
scanf("%d",&sizeMatr);
if(sizeMatr==0)break;
int Matrix[sizeMatr][sizeMatr];
int val;
for(int i=0;i<sizeMatr;i++){
for(int j=0;j<sizeMatr;j++){
cin>>val;
Matrix[i][j]=val;
}
}
bool AllEvenRow=true;
bool AllEvenCols=true;
int RowIndex,colIndex;
int ones=0;
for(int i=0;i<sizeMatr;i++){
for(int j=0;j<sizeMatr;j++){
if(Matrix[i][j]==1){
ones++;
}
}
if(ones%2!=0){
RowIndex=i;
AllEvenRow=false;
}
ones=0;
}
ones=0;
for(int i=0;i<sizeMatr;i++){
for(int j=0;j<sizeMatr;j++){
if(Matrix[j][i]==1){
ones++;
}
}
if(ones%2!=0){
colIndex=i;
AllEvenCols=false;
}
ones=0;
}
bool parity=false;
if(AllEvenRow==false || AllEvenCols==false){
Matrix[RowIndex][colIndex]=!Matrix[RowIndex][colIndex];
int RowOnes=0;int colOnes=0;
for(int i=0;i<sizeMatr;i++){
for(int j=0;j<sizeMatr;j++){
if(Matrix[i][j]==1)RowOnes++;
if(Matrix[j][i]==1)colOnes++;
}
if(RowOnes%2!=0 || colOnes%2!=0){
parity=true;
}
RowOnes=colOnes=0;
}
if(parity==false){
cout<<"Change bit ("<<RowIndex+1<<","<<colIndex+1<<")"<<endl;
}
else{
cout<<"Corrupt"<<endl;
}
}
else{
cout<<"OK"<<endl;
}
}
return 0;
}