Compilare: main.cpp: In function 'int main()': main.cpp:17:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 17 | for (int i = 2; i <= NM; i++) | ^~~ main.cpp:20:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 20 | int n,m; | ^~~ main.cpp:42:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~