Compilare: main.cpp: In function 'int main()': main.cpp:70:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for (auto &it : answer) ^~~ main.cpp:71:24: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' printf("%d\n",it); return 0; ^~~~~~ main.cpp:52:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("markon.in","r",stdin); ^ main.cpp:53:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("markon.out","w",stdout); ^ main.cpp:54:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&x); ^ main.cpp:56:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ main.cpp:62:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a,&b); ^