Compilare: user.cpp: In function ‘int main()’: user.cpp:37:9: warning: unused variable ‘n’ [-Wunused-variable] int n, i, nrp, k = 0, nr, timp = 0; ^ user.cpp:35:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reteta2.in", "r", stdin); ^ user.cpp:36:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reteta2.out", "w", stdout); ^