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Cod sursa(job #279166)
#include<fstream.h>
ifstream f("flip.in");
ofstream g("flip.out");
int main()
{
int a[16][16],i,j,n,m,s1,s,sf=0;
f>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
f>>a[i][j];
for(i=1;i<=n;i++)
{
s=0;
s1=0;
for(j=1;j<=m;j++)
{
s=s+a[i][j];
s1=s+(a[i][j]*(-1));
}
if(s<s1)
for(j=1;j<=m;j++)
a[i][j]=a[i][j]*(-1);
}
for(j=1;j<=m;j++)
{
s=0;
s1=0;
for(i=1;i<=n;i++)
{
s=s+a[i][j];
s1=s+(a[i][j]*(-1));
}
if(s<s1)
for(i=1;i<=n;i++)
a[i][j]=a[i][j]*(-1);
}
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
sf=sf+a[i][j];
g<<sf;
return 0;
}