Compilare: user.cpp: In function ‘void aff(int, int*, int)’: user.cpp:25:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < r.size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:69:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trilant.in", "r", stdin); ^ user.cpp:70:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trilant.out", "w", stdout); ^ user.cpp:104:25: warning: ‘elmin’ may be used uninitialized in this function [-Wmaybe-uninitialized] aff(c, last3, elmin); ^