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  1. #include<iostream>
  2. using namespace std;
  3. int a[100000],n,m,mod=998244353;
  4. int main(){
  5. 	a[1]=1;a[2]=1;for(int i=3;i<100000;i++){a[i]=a[i-1]+a[i-2];a[i]%=mod;}
  6. 	cin>>n>>m;
  7. 	for(int i=1;i<=n-1;i++){
  8. 		for(int j=2;j<=m;j++){a[j]+=a[j-1];a[j]%=mod;}
  9. 	}
  10. 	cout<<a[m]<<endl;
  11. 	return 0;
  12. }
Success #stdin #stdout 0s 3860KB
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stdout
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https://ideone.com/q0yCvN
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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