Compilare: main.cpp: In function 'int main()': main.cpp:34:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for( j = 0; j < graph[i].size(); j++ ){ | ~~^~~~~~~~~~~~~~~~~ main.cpp:36:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for( k = 0; k < graph[vecin_i].size(); k++ ) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:40:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for( j = 0; j < graph[i].size(); j++ ) | ~~^~~~~~~~~~~~~~~~~