Compilare: user.cpp: In function ‘void solve(int)’: user.cpp:64:50: 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:112:33: 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:113:35: 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:114:33: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread (sir+1, 1, 4200009, stdin); ^ user.cpp: In function ‘void solve(int)’: user.cpp:76:58: warning: ‘centru’ may be used uninitialized in this function [-Wmaybe-uninitialized] for (vector < int > :: iterator it = v[centru].begin(); it != v[centru].end(); it++) ^