Compilare: main.cpp: In function 'int main()': main.cpp:115:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mojosort.in", "r", stdin); ^ main.cpp:116:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mojosort.out", "w", stdout); ^