Compilare: main.cpp: In function 'void dfs(int)': main.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int i=0;i<gr[node].size();++i) | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'void adaugare_muchii()': main.cpp:78:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for(int j=0;j<first.size()&&ok;++j) | ~^~~~~~~~~~~~~ main.cpp:80:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int k=0;k<second.size()&&ok;++k) | ~^~~~~~~~~~~~~~ main.cpp:97:87: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 97 | for(int i=0;i<c-1&&(unit[i]<=2)&&(unit[0]<=1)&&(unit[c-1]<=1)&&(sol.size()<comptari-2);++i) | ~~~~~~~~~~^~~~~~~~~~~ main.cpp:107:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for(int j=0;j<first.size()&&ok;++j) | ~^~~~~~~~~~~~~ main.cpp:109:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for(int k=0;k<second.size()&&ok;++k) | ~^~~~~~~~~~~~~~ main.cpp:140:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 140 | for(int k=0;k<second.size()&&ok;++k) | ~^~~~~~~~~~~~~~ main.cpp:156:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 156 | for(int i=0;i<sol.size();++i) | ~^~~~~~~~~~~