0_0_39255471_29558.cpp: In function 'void GF()':
0_0_39255471_29558.cpp:6:3: error: 'memset' was not declared in this scope
6 | memset(n1, 0, sizeof(n1));
| ^~~~~~
0_0_39255471_29558.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
2 | #include <vector>
+++ |+#include <cstring>
3 | using namespace std;
|