Compilare: main.cpp: In function 'void bf_dist(int)': main.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (i = 0; i < l[vf].size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:51:32: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 51 | if (dx[i] + dy[i] == dx[y] && cont_dist[dx[i]] == 1 || i == y) | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:34:12: warning: unused variable 'j' [-Wunused-variable] 34 | {int m, i, j, z, t, nr = 0; | ^