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Cod sursa(job #377321)
#include<fstream.h>
void invers(int &x)
{
x*=-1;
}
int main()
{
int l,c,i,j,s1,s2,s3,a[16][16];
ifstream in("flip.in");
ofstream out("flip.out");
in>>l>>c;
for(i=1;i<=l;i++)
for(j=1;j<=c;j++)
in>>a[i][j];
for(i=1;i<=l;i++)
{
s1=s2=0;
for(j=1;j<=c;j++)
{
s1+=a[i][j];
s2+=(a[i][j]*-1);
};
if (s2>s1)
for(j=1;j<=c;j++)
invers(a[i][j]);
};
for(i=1;i<=c;i++)
{
s1=s2=0;
for(j=1;j<=l;j++)
{
s1+=a[i][j];
s2+=(a[i][j]*-1);
};
if (s2>s1)
for(j=1;j<=l;j++)
invers(a[i][j]);
};
s3=0;
for(i=1;i<=l;i++)
for(j=1;j<=c;j++)
s3+=a[i][j];
out<<s3;
in.close();
out.close();
}