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Cod sursa(job #504615)
#include<iostream.h>
#include<fstream.h>
ifstream f("flip.in");
ofstream g("flip.out");
int suma,i,k,j,n,m,a[20][20];
void citire()
{f>>n>>m;
for(i=1;i<=n;++i)
for(j=1;j<=m;++j)
f>>a[i][j];
f.close();
}
void inmultire_linie(int i)
{
for(k=1;k<=m;k++)
a[i][k]=-a[i][k];
}
void inmultire_coloana(int i)
{
for(k=1;k<=n;k++)
a[k][i]=-a[k][i];
}
int cautare_negativ()
{
for(i=1;i<=n;i++)
{for(j=1;j<=m;j++)
suma=suma+a[i][j];
if(suma<0)inmultire_linie(i);
suma=0;
}
for(i=1;i<=m;i++)
{for(j=1;j<=n;j++)
suma=suma+a[j][i];
if(suma<0)inmultire_coloana(i);
suma=0;
}
}
void afisare()
{for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
suma=suma+a[i][j];
g<<suma;
}
int main()
{citire();
cautare_negativ();
afisare();
return 0;
}