Compilare: main.cpp: In function 'void coboara(long long int, long long int)': main.cpp:24:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | while (poz * 2 + 1 < v[m].size()) { | ~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:25:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | if (poz * 2 + 2 < v[m].size()) { | ~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'void merge(long long int, long long int)': main.cpp:72:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for( i = 0;i<v[b].size();i++) | ~^~~~~~~~~~~~ main.cpp:75:18: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses] 75 | if(-1<j<v[a].size()) | ~~^~ main.cpp: In function 'int main()': main.cpp:108:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 108 | for(auto i = 0;i<sol.size();i++) | ~^~~~~~~~~~~