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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. void executeTime() {
  5.     cerr << "Time Taken: " << (float)clock() / CLOCKS_PER_SEC << " secs";
  6. }
  7.  
  8. int main() {
  9.  
  10.     int n; cin >> n;
  11.  
  12.     vector<int> v(n);
  13.     for (auto &x : v) {
  14.         cin >> x;
  15.     }
  16.  
  17.     vector<int> dp(n + 1, 0);
  18.     dp[0] = INT_MAX;
  19.  
  20.     dp[1] = v[0];
  21.  
  22.     for (int i = 2; i <= n; i++) {
  23.         if (i - 1 >= 1) {
  24.             dp[i] = dp[i - 1];
  25.         } if (i - 3 >= 1) {
  26.             dp[i] = max(dp[i], dp[i - 3]);
  27.         } if (i - 5 >= 1) {
  28.             dp[i] = max(dp[i], dp[i - 5]);
  29.         }
  30.  
  31.         dp[i] += v[i - 1];
  32.     }
  33.  
  34.     cout << dp[n] << endl;
  35.  
  36.     executeTime();
  37.     return 0;
  38. }
Success #stdin #stdout #stderr 0s 5308KB
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stdin
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8 
5 8 3 100 -5 -5 5 10
stdout
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131
stderr
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Time Taken: 0.004447 secs
https://ideone.com/oODWl3
language:
C++14 (gcc 8.3)
created:
17 hours ago
visibility:
public

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