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Cod sursa(job #623657)
#include <fstream>
using namespace std;
ifstream f("flip.in");
ofstream g("flip.out");
int main()
{
int a[16][16],n,m,i,j,s,ct=0;
f>>n>>m;
for (i=0;i<n;i++)
for (j=0;j<m;j++)
f>>a[i][j];
for (i=0;i<n;i++)
{
s=0;
for (j=0;j<n;j++)
s+=a[i][j];
if (s<0)
for (j=0;j<n;j++)
a[i][j]=a[i][j]*(-1);
}
for (j=0;j<m;j++)
{
s=0;
for (i=0;i<n;i++)
s+=a[i][j];
if (s<0)
for (i=0;i<n;i++)
a[i][j]=a[i][j]*(-1);
}
for (i=0;i<n;i++)
for (j=0;j<m;j++)
ct=ct+a[i][j];
g<<ct;
}