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Cod sursa(job #131083)
#include<fstream.h>
int x[17][17],i,j,sa,sc1,sc2,n,m;
int main(){
ifstream f("flip.in");
ofstream g("flip.out");
f>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
f>>x[i][j];
for(i=1;i<=n;i++)
{sc1=0;sc2=0;
for(j=1;j<=m;j++)
{sc1+=x[i][j];
sc2-=x[i][j];
}
if(sc2>sc1)
for(j=1;j<=m;j++)
x[i][j]*=-1;
}
for(j=1;j<=m;j++)
{sc1=sc2=0;
for(i=1;i<=n;i++)
{sc1+=x[i][j];
sc2-=x[i][j];
}
if(sc2>sc1)
for(i=1;i<=n;i++)
x[i][j]*=-1;
}
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
sa+=x[i][j];
g<<sa;
f.close();
g.close();
return 0;
}