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Cod sursa(job #267759)
#include<fstream.h>
ifstream f ("flip.in");
ofstream g ("flip.out");
int main()
{ unsigned n,m,i,j;
int v[20][20],suma;
f>>n;
f>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
f>>v[i][j];
for(i=1;i<=n;i++)
{
v[i][m+1]=0;
for(j=1;j<=m;j++)
v[i][m+1]=v[i][m+1]+v[i][j];
if(v[i][m+1]<0) for(j=1;j<=m;j++)
v[i][j]*=(-1);
}
for(j=1;j<=m;j++)
{
v[n+1][j]=0;
for(i=1;i<=n;i++)
v[n+1][j]=v[n+1][j]+v[i][j];
if(v[n+1][j]<0)for(i=1;i<=n;i++)
v[i][j]*=(-1);
}
suma=0;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
suma+=v[i][j];
g<<suma;
return 0;
}