Compilare: user.cpp: In function ‘void insertElement(long long int)’: user.cpp:10:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < v[q].size(); i++) ^ user.cpp: In function ‘bool isInSet(long long int)’: user.cpp:19:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < v[q].size() ; i++) ^ user.cpp: In function ‘int main()’: user.cpp:45:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < v[q].size() ; i ++) ^ user.cpp:56:49: warning: second operand of conditional expression has no effect [-Wunused-value] cout << (isInSet(b)) ? "1\n" : "0\n"; ^ user.cpp:56:49: warning: third operand of conditional expression has no effect [-Wunused-value] user.cpp:28:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hasuri.in", "r", stdin); ^ user.cpp:29:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hasuri.out", "w", stdout); ^