Compilare: user.cpp: In function ‘int bfs(int, int, int)’: user.cpp:33:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < a[nod].size(); i++) ^ user.cpp:47:59: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (noduri[mini] > len || noduri[mini] == len && nod != parrent) ^ user.cpp: In function ‘int main()’: user.cpp:109:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < cmp[i].size(); j++) ^ user.cpp:127:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < muchii.size(); i++) ^