Compilare: user.cpp: In function ‘int main()’: user.cpp:217:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < rez.size(); ++i) ^ user.cpp:114:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("compunere.in", "r", stdin); ^ user.cpp:115:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("compunere.out", "w", stdout); ^ user.cpp:123:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ user.cpp:130:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &b[i]); ^