Eroare de compilare: main.cpp: In function 'int main()': main.cpp:21:30: error: redeclaration of 'int x' 21 | int N, M, K, i, a, x, y, x; | ^ main.cpp:21:24: note: 'int x' previously declared here 21 | int N, M, K, i, a, x, y, x; | ^ main.cpp:38:18: error: 'z' was not declared in this scope 38 | f>>x>>y>>z; | ^ main.cpp:58:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(i=0; i<margini[nod_min].size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:17: error: 'n' was not declared in this scope 77 | for(i=1; i<=n; i++) | ^ Non zero exit status: 1