fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int N,K;
  5. const int MOD=1000000000;
  6. long long dp[201][201];
  7. void Input(){
  8. 	cin>>N>>K;
  9. }
  10. void solve(){
  11. 	for(int i=0;i<=N;++i){
  12. 		dp[i][1]=1;
  13. 	}
  14. 	for(int i=1;i<=K;++i){
  15. 		dp[0][i]=1;
  16. 	}
  17. 	for(int i=1;i<=N;++i){
  18. 		int m=i/2;
  19. 		if(i%2==0){
  20. 			dp[i][2]=1+i;
  21. 		}else{
  22. 			dp[i][2]=(m+1)*2;
  23. 		}
  24. 	}
  25. 	for(int i=3;i<=K;++i){
  26.  
  27. 		for(int j=1;j<=N;++j){
  28.  
  29. 			long long sum=0;
  30. 			for(int u=j;u>=0;--u){
  31. 				sum+=(dp[j-u][i-1])%MOD;
  32. 			}
  33. 			dp[j][i]=sum%MOD;
  34. 		}
  35. 	}
  36. }
  37.  
  38. int main() {
  39. 	Input();
  40. 	solve();
  41. 	cout<<dp[N][K];
  42. }
Success #stdin #stdout 0s 4300KB
comments (?)
stdin
copy 
10 3
stdout
copy 
66
https://ideone.com/UVPM1N
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!