Compilare: main.cpp: In function 'void Query()': main.cpp:56:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (P[nod]+1==AIB[nod].size() || AIB[nod][P[nod]+1].first>=A) ~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=1; j<AIB[nod].size(); j++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int citeste()': main.cpp:30:46: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, VAL, stdin), POZ=0; ^ main.cpp:36:46: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, VAL, stdin), POZ=0; ^ main.cpp: In function 'int main()': main.cpp:74:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("distincte.in", "r", stdin); ^ main.cpp:75:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("distincte.out", "w", stdout); ^