0_0_39241742_27407.cpp: In function 'void init()':
0_0_39241742_27407.cpp:25:5: error: 'memset' was not declared in this scope
25 | memset(ne, 0, sizeof(ne));
| ^~~~~~
0_0_39241742_27407.cpp:4:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
3 | #include<set>
+++ |+#include <cstring>
4 | using namespace std;
|