Compilare: user.cpp: In function ‘void SolveTestCase()’: user.cpp:34:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( Left == Auxiliary.size() ) ^ user.cpp:12:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d", &N ); std::vector<int> Auxiliary, Answer(N); ^ user.cpp:16:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d %d", &X, &Y ); ^ user.cpp: In function ‘int main(int, const char**)’: user.cpp:53:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "posta.in" , "r", stdin ); ^ user.cpp:54:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "posta.out", "w", stdout ); ^