View Compilation Error

0_0_39209185_10088.cpp: In function 'int main()':
0_0_39209185_10088.cpp:29:9: error: 'assert' was not declared in this scope
   29 |         assert(wa != 0);
      |         ^~~~~~
0_0_39209185_10088.cpp:4:1: note: 'assert' is defined in header '<cassert>'; did you forget to '#include <cassert>'?
    3 | #include <cstring>
  +++ |+#include <cassert>
    4 | using namespace std;