Compilare: user.cpp: In function ‘int main()’: user.cpp:41:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<bus.size(); ++i) ^ user.cpp:44:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int s=1; s<route.size(); ++s) ^ user.cpp:10:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("autobuze2.in", "r", stdin); ^ user.cpp:11:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("autobuze2.out", "w", stdout); ^