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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. typedef long long ll;
  4. int main(){
  5. 	ll n,m,k;
  6. 	cin>>n>>m>>k;
  7. 	ll ans=m;
  8. 	ans%=998244353;
  9.  
  10. 	ll i;
  11. 	for( i=1;i<=k;i++){
  12. 		ans*=(n-1-k+i);
  13. 		ans%=998244353;
  14. 		ans/=i;
  15. 		ans*=(m-1);
  16. 		ans%=998244353;
  17. 	}
  18. 	ans%=998244353;
  19. 	cout<<ans<<endl;
  20.  
  21.  
  22. }
Success #stdin #stdout 0s 15232KB
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199335391
https://ideone.com/HM4IBD
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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