Compilare: user.cpp: In function ‘void get(int, std::vector<int>, int&, int&)’: user.cpp:37:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (P1 == X.size() - 1) ^ user.cpp: In function ‘int main()’: user.cpp:104:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<X.size(); i++) ^ user.cpp:111:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Y.size(); j++) ^ user.cpp:118:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Y.size(); j++) ^ user.cpp:125:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Y.size(); j++) ^ user.cpp:132:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Y.size(); j++) ^ user.cpp: In function ‘void Cit(int&)’: user.cpp:50:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for(; Buffer[CharB]<'0' || Buffer[CharB]>'9';verf); ^ user.cpp:51:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for(x=0;Buffer[CharB]>='0'&&Buffer[CharB]<='9';verf)x=x*10+Buffer[CharB]-48; ^ user.cpp: In function ‘int main()’: user.cpp:84:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("ajutor.in", "r", stdin); ^ user.cpp:85:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("ajutor.out", "w", stdout); ^