Compilare: user.cpp: In function ‘void solve(int)’: user.cpp:63:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (h.size() - vol[*it] + 1 > max_vol[*it]) ^ user.cpp: In function ‘int main()’: user.cpp:100:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("kdist.in", "r", stdin); ^ user.cpp:101:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("kdist.out", "w", stdout); ^ user.cpp:102:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &N); ^ user.cpp:103:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &K); ^ user.cpp:107:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &X, &Y); ^ user.cpp:112:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &cul[i]); ^ user.cpp: In function ‘void solve(int)’: user.cpp:75:58: warning: ‘centru’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (vector < int > :: iterator it = v[centru].begin(); it != v[centru].end(); it++) ^