Compilare: main.cpp: In function 'int main()': main.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for (i = 0; i < v[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:37:32: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 37 | if (costuri[y] = costuri[x] + 1) | ~~~~~~~~~~~^~~~~~~~~~~~~~~~