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Cod sursa(job #148997)
#include<fstream.h>
int main(void)
{ int n,m;
long int mat[125][125],i,j,sc1,sc2,sl1,sl2,sf;
ifstream in("flip.in");
in>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
in>>mat[i][j];
in.close();
for(i=1;i<=n;i++)
{ sc1=0;sc2=0;
for(j=1;j<=m;j++)
{ sc1=sc1+mat[i][j];
sc2=sc2-mat[i][j];
}
if(sc2>sc1)
{ for(j=1;j<=m;j++)
mat[i][j]=mat[i][j]*(-1);
}
}
for(j=1;j<=m;j++)
{ sl1=0;sl2=0;
for(i=1;i<=n;i++)
{ sl1=sl1+mat[i][j];
sl2=sl2-mat[i][j];
}
if(sl2>sl1)
{ for(i=1;i<=n;i++)
mat[i][j]=mat[i][j]*(-1);
}
}
ofstream out("flip.out");
sf=0;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
sf=sf+mat[i][j];
out<<sf;
out.close();
return 0;
}