0_0_39332351_31991.cpp: In function 'int main()':
0_0_39332351_31991.cpp:30:17: error: 'memset' was not declared in this scope
30 | memset(tree, 0, sizeof(tree));
| ^~~~~~
0_0_39332351_31991.cpp:2:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
1 | #include<iostream>
+++ |+#include <cstring>
2 | using namespace std;
|