View Compilation Error

0_0_39484947_9512.cpp: In function 'void solve()':
0_0_39484947_9512.cpp:17:23: error: 'pow' was not declared in this scope
   17 |                 sum = pow(4,k);
      |                       ^~~
0_0_39484947_9512.cpp:19:21: error: 'p' was not declared in this scope
   19 |                 rep(p, 0, 62) {
      |                     ^
0_0_39484947_9512.cpp:19:17: error: 'rep' was not declared in this scope
   19 |                 rep(p, 0, 62) {
      |                 ^~~
0_0_39484947_9512.cpp:24:2: error: expected '}' at end of input
   24 | }
      |  ^
0_0_39484947_9512.cpp:11:1: note: to match this '{'
   11 | {
      | ^