Compilare: main.cpp: In function 'void euler(int)': main.cpp:17:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(; mem[nod] < graf[nod].size(); mem[nod]++){ | ~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:50:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 50 | if(afis.size() < m){ | ~~~~~~~~~~~~^~~ main.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for(i = 0; i < afis.size(); i++){ | ~~^~~~~~~~~~~~~