Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:18:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for ( int i = 0 ; i < v[nod] . size() ; i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:63:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 63 | if(x1>y1) | ^~ main.cpp:66:5: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 66 | p=y1-x1+1; | ^