Compilare: user.cpp: In function ‘int main()’: user.cpp:9:19: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d", &n); ^ user.cpp:13:31: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] for(j=1; j<=n; j++) if(i!=1 && j!=1) if(j==i)k--; ^ user.cpp:17:19: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d", k); ^