View Compilation Error

0_0_38623347_6538.cpp: In function 'int main()':
0_0_38623347_6538.cpp:20:9: error: 'memset' was not declared in this scope
         memset(vistime, 0, sizeof(vistime));
         ^~~~~~
0_0_38623347_6538.cpp:20:9: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
0_0_38623347_6538.cpp:5:1:
+#include <cstring>
 using namespace std;
0_0_38623347_6538.cpp:20:9:
         memset(vistime, 0, sizeof(vistime));
         ^~~~~~