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  1. #include <bits/stdc++.h>
  2. using namespace std ;
  3.  
  4. #define int long long
  5.  
  6. int32_t main(){
  7. 	int n ;
  8. 	cin >> n ;
  9. 	int a[n+1] ;
  10. 	a[n] = 0 ;
  11. 	for(int i = 0 ; i < n ; i++) cin >> a[i] ;
  12. 	int dp[n+1] ;
  13. 	dp[0] = a[0] ;
  14. 	dp[1] = a[1] ;
  15. 	dp[2] = a[2] ;
  16. 	for(int i = 3 ; i <= n ; i++){
  17. 		dp[i] = a[i] + min({dp[i-1],dp[i-2],dp[i-3]}) ;
  18. 	}
  19. 	cout << dp[n] ;
  20. 	return 0 ;
  21. }
  22.  
Success #stdin #stdout 0s 4300KB
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stdin
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10
3 2 1 1 2 3 1 3 2 1
stdout
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4
https://ideone.com/gFl2j8
SUPW code
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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