Compilare: main.cpp: In function 'void dfs2(int, int)': main.cpp:23:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(i=0; i<vec[curr].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int)': main.cpp:36:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(i=0; i<adj[curr].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:55:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(i=0; i<adj[curr].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:117:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 117 | if(rez.size()==2*n) | ~~~~~~~~~~^~~~~ main.cpp:120:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for(i=0;i<rez.size()-1;i++) | ~^~~~~~~~~~~~~ main.cpp:74:13: warning: unused variable 'j' [-Wunused-variable] 74 | int n,i,j,k,l,t,op,a,b,imp; | ^ main.cpp:74:15: warning: unused variable 'k' [-Wunused-variable] 74 | int n,i,j,k,l,t,op,a,b,imp; | ^ main.cpp:74:17: warning: unused variable 'l' [-Wunused-variable] 74 | int n,i,j,k,l,t,op,a,b,imp; | ^