Compilare: user.cpp: In function ‘int main()’: user.cpp:13:28: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] sum += x;}}printf("%d", sol); ^ user.cpp:3:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("bleach.in", "r", stdin);freopen("bleach.out", "w", stdout);int n, k;scanf("%d%d", &n, &k);std::priority_queue<long long> q; ^ user.cpp:3:79: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("bleach.in", "r", stdin);freopen("bleach.out", "w", stdout);int n, k;scanf("%d%d", &n, &k);std::priority_queue<long long> q; ^ user.cpp:3:110: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int main(){freopen("bleach.in", "r", stdin);freopen("bleach.out", "w", stdout);int n, k;scanf("%d%d", &n, &k);std::priority_queue<long long> q; ^ user.cpp:7:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &x); ^