Compilare: user.cpp: In function ‘int query1(int, std::vector<int>&, std::vector<int>&)’: user.cpp:44:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a==poz.size() || poz[a]>x) a--; ^ user.cpp: In function ‘void inc()’: user.cpp:157:35: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(pars,1,Buffer,stdin); ^ user.cpp: In function ‘int main()’: user.cpp:172:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("meow.in", "r", stdin); ^ user.cpp:173:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("meow.out", "w", stdout); ^