.........
//se calculeaza sumele de pe linii in vectorul s:
for(i=1;i<=m;i++)
{
s[i]=0;
for(j=1;j<=n;j++)
s[i]=s[i]+a[i][j];
}
//se compara sumele, doua cate doua - ramane o virgula la urma...
for(i=1;i<=m;i++)
for(j=1;j<=n;j++)
if (s[i]==s[j])
cout<<<<"("<<i<<","<<j<<"),";