View Compilation Error

0_0_39568533_31260.cpp: In function 'void solve()':
0_0_39568533_31260.cpp:59:14: error: 'qpow' was not declared in this scope; did you mean 'pow'?
   59 | res = (res * qpow(it.first, it.second)) % mod;//乘起来的到的
      |              ^~~~
      |              pow