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Cod sursa(job #307375)
//flip
#include<fstream>
int n,a[16][16], i, j, k=1, max=0, s=0, m, q;
{
ifstream in("flip.in");
ofstream out("flip.out");
in>>n;
in>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
in>>a[i][j];
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
max+=a[i][j];
while(k<=n){
for(i=1;i<=n;i++)
a[k][i]*=-1;
for(j=1;j<=n;j++)
for(q=1;q<=n;j++)
s=s+a[j][q];
if(max>s)
max=s;
k++;
}
k=1;
while(k<=m){
for(i=1;i<=n;i++)
a[i][k]*=-1;
for(j=1;j<=n;j++)
for(q=1;q<=n;j++)
s=s+a[j][k];
if(max>s)
max=s;
k++;
}
out<<s;
return 0;
}