Compilare: main.cpp: In function 'void bkt(int, long long int)': main.cpp:27:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz==divi.size()) ~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("armonica.in","r",stdin); ^ main.cpp:42:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("armonica.out","w",stdout); ^