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Submission #523520

# Submission time Handle Problem Language Result Execution time Memory
523520 2022-02-07T18:02:22 Z Pety Skyline (IZhO11_skyline) C++14
100 / 100
 69 ms 48448 KB 
#include <bits/stdc++.h>
#define ll long long

using namespace std;

const int INF = 1e9;
const int MOD = 1e9 + 7;

int n, v[302], dp[302][202][202];

int main () 
{
  ios_base::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);
  cin >> n;
  for (int i = 1; i <= n; i++)
    cin >> v[i];
  for (int i = 1; i <= 301; i++)
    for (int j = 0; j <= 201; j++)
      for (int k = 0; k <= 201; k++)
        dp[i][j][k] = INF;
      
  for (int i = 0; i <= v[1]; i++)
    dp[2][v[2]][i] = dp[1][i][0] = 3 * (v[1] - i);
  for (int i = 2; i <= n; i++) {
      for (int j = v[i]; j >= 0; j--)
        for (int k = v[i - 1]; k >= 0; k--) 
          dp[i][j][k] = min(dp[i][j + 1][k] + 3, dp[i][j][k]);
        
      for (int j = v[i]; j >= 0; j--)
        for (int k = v[i - 1]; k >= 0; k--) 
          dp[i][j][k] = min(dp[i][j + 1][k + 1] + 5, dp[i][j][k]);
    if (i == n)
      continue;
    for (int j = min(v[i], min(v[i + 1], v[i - 1])); j >= 0; j--)
      for (int k = v[i]; k >= j; k--)
        dp[i + 1][v[i + 1] - j][k - j] = min(dp[i + 1][v[i + 1] - j][k - j], dp[i][k][j] + 7 * j);
  }
  cout << dp[n][0][0];
  return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 48332 KB Output is correct
2 Correct 39 ms 48324 KB Output is correct
3 Correct 27 ms 48308 KB Output is correct
4 Correct 28 ms 48268 KB Output is correct
5 Correct 28 ms 48304 KB Output is correct
6 Correct 27 ms 48348 KB Output is correct
7 Correct 27 ms 48332 KB Output is correct
8 Correct 29 ms 48272 KB Output is correct
9 Correct 30 ms 48316 KB Output is correct
10 Correct 30 ms 48332 KB Output is correct
11 Correct 39 ms 48324 KB Output is correct
12 Correct 29 ms 48332 KB Output is correct
13 Correct 35 ms 48448 KB Output is correct
14 Correct 35 ms 48260 KB Output is correct
15 Correct 54 ms 48344 KB Output is correct
16 Correct 51 ms 48324 KB Output is correct
17 Correct 68 ms 48332 KB Output is correct
18 Correct 69 ms 48380 KB Output is correct
19 Correct 60 ms 48368 KB Output is correct
20 Correct 65 ms 48372 KB Output is correct