View Compilation Error

0_0_39821344_21430.cpp: In function 'void pathadd(long long int, long long int, long long int)':
0_0_39821344_21430.cpp:99:9: error: 'assert' was not declared in this scope
   99 |         assert(cnt > n);
      |         ^~~~~~
0_0_39821344_21430.cpp:5:1: note: 'assert' is defined in header '<cassert>'; did you forget to '#include <cassert>'?
    4 | #include<string.h>
  +++ |+#include <cassert>
    5 | using namespace std;