Problem	helloworld
User	Usu
Submission Time	2025-10-29 23:41:05
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

helloworld.cpp: In function ‘ll nCr(int, int)’:
helloworld.cpp:109:29: error: ‘mod_mul’ was not declared in this scope; did you mean ‘modfl’?
109 | return mod_mul(fact[n], mod_mul(inv_fact[r], inv_fact[n - r]));
| ^~~~~~~
| modfl
helloworld.cpp:109:12: error: ‘mod_mul’ was not declared in this scope; did you mean ‘modfl’?
109 | return mod_mul(fact[n], mod_mul(inv_fact[r], inv_fact[n - r]));
| ^~~~~~~
| modfl
helloworld.cpp: In function ‘std::vector<int> prefix_function(const string&)’:
helloworld.cpp:85:19: error: expected initializer before ‘.’ token
85 | #define pi fast_io.pi
| ^
helloworld.cpp:173:17: note: in expansion of macro ‘pi’
173 | vector<int> pi(n);
| ^~
helloworld.cpp:175:25: error: invalid types ‘<unresolved overloaded function type>[int]’ f