Compilare: main.cpp: In function 'void dijkstra()': main.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i = 0; i < legaturi[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:59:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 59 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp:64:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 64 | for(int i = 1; i <= k; i++) | ~~^~~~ main.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 74 | for(int i = 1; i <= m; i++) | ~~^~~~ main.cpp:83:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 83 | for(int i = 1; i <= n; i++) | ~~^~~~