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Cod sursa(job #370707)
#include<iostream>
#include<fstream>
using namespace std;
int main()
{ifstream f("flip.in");
ofstream g("flip.out");
int a[16][16],n,m,s,i,j,k;
f>>n>>m;
for(i=0;i<n;i++)
for(j=0;j<m;j++)
f>>a[i][j];
int min=1000000;
for(j=0;j<m;j++)
{s=0;
for(i=0;i<n;i++)
s+=a[i][j];
if(s<min) {min=s; k=j;}
}
cout<<k<<endl;
for(i=0;i<n;i++)
a[i][k]=(-1)*a[i][k];
for(i=0;i<n;i++)
{for(j=0;j<m;j++)
cout<<a[i][j]<<" ";
cout<<endl;
}
cout<<endl;
min=1000000;
for(i=0;i<n;i++)
{s=0;
for(j=0;j<m;j++)
s+=a[i][j];
cout<<s<<endl;
if(s<min){min=s;k=i;}
}
cout<<k<<endl;
for(j=0;j<m;j++)
a[k][j]=(-1)*a[k][j];
for(i=0;i<n;i++)
{for(j=0;j<m;j++)
cout<<a[i][j]<<" ";
cout<<endl;
}
s=0;
for(i=0;i<n;i++)
for(j=0;j<m;j++)
s+=a[i][j];
g<<s;
f.close();
g.close();
return 0;
}