Compilare: user.cpp: In function ‘int main()’: user.cpp:181:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] writeInt(cnt + 1 > ans.size() ? 0 : ans[cnt]," \n"[q == 0]); ^ user.cpp:150:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("chimichangas.in","r",stdin); ^ user.cpp:151:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("chimichangas.out","w",stdout); ^