foo.cc: In function 'int main()':
foo.cc:26:13: error: 'memset' was not declared in this scope
   26 |             memset(tune, 0, sizeof(tune));
      |             ^~~~~~
foo.cc:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include <algorithm>
  +++ |+#include <cstring>
    3 | 
foo.cc:32:13: error: 'memset' was not declared in this scope
   32 |             memset(tune, 0, sizeof(tune));
      |             ^~~~~~
foo.cc:32:13: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?

[Hydro](https://hydro.ac)提供评测服务