0_0_38819579_18953.cpp: In function 'int main()':
0_0_38819579_18953.cpp:63:9: error: 'memset' was not declared in this scope
63 | memset(vis, 0, sizeof(vis));
| ^~~~~~
0_0_38819579_18953.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
2 | #include <queue>
+++ |+#include <cstring>
3 | using namespace std;
|