Compilare: main.cpp: In function 'int main()': main.cpp:2:123: warning: unused variable 'j' [-Wunused-variable] using namespace std;ifstream f("numere5.in");ofstream g("numere5.out");const int t=1000000;bool a[t+1];int main(){int n,i,j,x=t+3,y=-1,r;f>>n;for(i=1;i<=n*n;i++){f>>r;a[r]=1;}for(i=1;i<=n*n;i++) if(a[i]==0) x=min(x,i),y=max(y,i);g<<x<<" "<<y;return 0;} ^