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Cod sursa(job #552415)
#include<fstream.h>
#include<math.h>
int main()
{int i,j,m,n,a[100][100],S1,S2,S,t;
ifstream f("flip.in");
ofstream g("flip.out");
f>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
f>>a[i][j];
S=0;
for(i=1;i<=n;i++)
{ S1=0; S2=0;
for(j=1;j<=m;j++)
if(a[i][j]<0) S1=S1+a[i][j];
else S2=S2+a[i][j];
if (abs(S1)>S2) {S=S+(abs(S1)-S2);
for(t=1;t<=m;t++)
if (a[i][t]<0) a[i][t]=a[i][t]*(-1);
}
else S=S+(S2-abs(S1));
}
for(j=1;j<=m;j++)
{ S1=0; S2=0;
for(i=1;i<=n;i++)
if(a[i][j]<0) S1=S1+a[i][j];
else S2=S2+a[i][j];
if (abs(S1)>S2){S=S+(abs(S1)-S2);
for(t=1;t<=n;t++)
if(a[t][j]<0) a[t][j]=a[t][j]*(-1);}
else S=S+(S2-abs(S1));
}
g<<S;
f.close();
g.close();
return 0;
}