Problem	fibo
User	shaokai347
Submission Time	2026-02-01 12:43:01
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

fibo.cpp: In function ‘void nextnumber(int, int)’:
fibo.cpp:4:25: error: return-statement with a value, in function returning ‘void’ [-fpermissive]
4 | return ((a+b)%998244353);
| ^