View Compilation Error

0_0_19361327_6887.cpp: In function 'int dfs(int, int)':
0_0_19361327_6887.cpp:72:40: error: too few arguments to function 'int pw(int, int)'
     ans = (ans + (sum(n / cur) * pw(cur)) % md) % md;
                                        ^
0_0_19361327_6887.cpp:15:5: note: declared here
 int pw(int a, int n) {
     ^
0_0_19361327_6887.cpp:73:47: error: too few arguments to function 'int pw(int, int)'
     ans = ((ans - dfs(i + 1, n / cur) * pw(cur))%md + md ) % md;
                                               ^
0_0_19361327_6887.cpp:15:5: note: declared here
 int pw(int a, int n) {
     ^