View Compilation Error

0_0_39064145_8342.cpp: In function 'int main()':
0_0_39064145_8342.cpp:21:5: error: 'memset' was not declared in this scope
   21 |     memset(f,0,sizeof(f));
      |     ^~~~~~
0_0_39064145_8342.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include <iomanip>
  +++ |+#include <cstring>
    3 | #define inf 1e16;