Compilare: user.cpp: In function ‘int main(int, const char**)’: user.cpp:82:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (calMin = 0; calMin < calSortat.size() - 1 and !ok; calMin++) { ^ user.cpp:54:19: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] stdin); ^ user.cpp:57:20: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] stdout); ^ user.cpp:88:91: warning: ‘calMax’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << nodS + 1 << ' ' << nodF + 1 << ' ' << calorii[calMin] << ' ' << calorii[calMax]; ^