information.cpp: In function 'int main()':
information.cpp:52:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
52 | if(V1.size()!=N-1 || V2.size()!=N-1) return !printf("NONE");
| ~~~~~~~~~^~~~~
information.cpp:52:32: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
52 | if(V1.size()!=N-1 || V2.size()!=N-1) return !printf("NONE");
| ~~~~~~~~~^~~~~
information.cpp:53:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
53 | for(auto it : V1) printf("%d ", it); printf("\n");
| ^~~
information.cpp:53:39: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
53 | for(auto it : V1) printf("%d ", it); printf("\n");
| ^~~~~~
information.cpp:54:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
54 | for(auto it : V2) printf("%d ", it); printf("\n");
| ^~~
information.cpp:54:39: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
54 | for(auto it : V2) printf("%d ", it); printf("\n");
| ^~~~~~
information.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
32 | scanf("%d%d", &N, &M);
| ~~~~~^~~~~~~~~~~~~~~~
information.cpp:36:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
36 | scanf("%d%d", &u, &v);
| ~~~~~^~~~~~~~~~~~~~~~