Compilare: main.cpp: In function 'void buildI(long long int, long long int, long long int)': main.cpp:81:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | while(i<aintI[2*nod+1].size() && x<=aintI[2*nod+1][i].first) | ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:88:9: warning: statement has no effect [-Wunused-value] 88 | for(i;i<aintI[2*nod+1].size();i++) aintI[nod].push_back(aintI[2*nod+1][i]); | ^ main.cpp:88:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 88 | for(i;i<aintI[2*nod+1].size();i++) aintI[nod].push_back(aintI[2*nod+1][i]); | ~^~~~~~~~~~~~~~~~~~~~~~