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Submission #1061770

# Submission time Handle Problem Language Result Execution time Memory
1061770 2024-08-16T13:10:05 Z MilosMilutinovic Peru (RMI20_peru) C++14
100 / 100
 378 ms 74292 KB 
#include "peru.h"
#include <bits/stdc++.h>

using namespace std;

const int md = 1e9 + 7;

int add(int x, int y) {
  return x + y < md ? x + y : x + y - md;
}

int mul(int x, int y) {
  return x * 1LL * y % md;
}

int solve(int n, int k, int* v) {
  vector<int> ft(n);
  deque<int> dq;
  for (int i = 0; i < n; i++) {
    while (!dq.empty() && v[i] >= v[dq.back()]) {
      dq.pop_back();
    }
    while (!dq.empty() && i - dq.front() + 1 > k) {
      dq.pop_front();
    }
    dq.push_back(i);
    ft[i] = v[dq.front()];
  }
  const long long inf = (long long) 1e18;
  vector<long long> dp(n, inf);
  multiset<pair<long long, int>> st;
  vector<array<int, 3>> stk;
  for (int i = 0; i < n; i++) {
    int border = i;
    while (!stk.empty() && v[i] > stk.back()[0]) {
      border = stk.back()[1];
      st.erase({(border == 0 ? 0LL : dp[border - 1]) + stk.back()[0], border});
      stk.pop_back();
    }
    stk.push_back({v[i], border, i});
    st.emplace((border == 0 ? 0LL : dp[border - 1]) + v[i], border);
    while (!st.empty() && i - st.begin()->second + 1 > k) {
      st.erase(st.begin());
    }
    if (!st.empty()) {
      dp[i] = min(dp[i], st.begin()->first);
    }
    int j = max(0, i - k + 1);
    dp[i] = min(dp[i], (j == 0 ? 0LL : dp[j - 1]) + ft[i]);
  }
  int res = 0;
  int pw = 1;
  for (int i = n - 1; i >= 0; i--) {
    dp[i] %= md;
    res = add(res, mul(pw, dp[i]));
    pw = mul(pw, 23);
  }
  return res;
}

Subtask #1
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 59 ms 7660 KB Output is correct
16 Correct 48 ms 7768 KB Output is correct
17 Correct 53 ms 7988 KB Output is correct
18 Correct 42 ms 7508 KB Output is correct
19 Correct 36 ms 7512 KB Output is correct
20 Correct 38 ms 7260 KB Output is correct
21 Correct 50 ms 7772 KB Output is correct
22 Correct 53 ms 8284 KB Output is correct
23 Correct 54 ms 8284 KB Output is correct
24 Correct 51 ms 11632 KB Output is correct
25 Correct 54 ms 12504 KB Output is correct
26 Correct 49 ms 11356 KB Output is correct
27 Correct 52 ms 11600 KB Output is correct
28 Correct 54 ms 11856 KB Output is correct
29 Correct 50 ms 11832 KB Output is correct
30 Correct 54 ms 11592 KB Output is correct
31 Correct 48 ms 11500 KB Output is correct
32 Correct 53 ms 11864 KB Output is correct
33 Correct 47 ms 11608 KB Output is correct

Subtask #3
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 7660 KB Output is correct
2 Correct 48 ms 7768 KB Output is correct
3 Correct 53 ms 7988 KB Output is correct
4 Correct 42 ms 7508 KB Output is correct
5 Correct 36 ms 7512 KB Output is correct
6 Correct 38 ms 7260 KB Output is correct
7 Correct 50 ms 7772 KB Output is correct
8 Correct 53 ms 8284 KB Output is correct
9 Correct 54 ms 8284 KB Output is correct
10 Correct 51 ms 11632 KB Output is correct
11 Correct 54 ms 12504 KB Output is correct
12 Correct 49 ms 11356 KB Output is correct
13 Correct 52 ms 11600 KB Output is correct
14 Correct 54 ms 11856 KB Output is correct
15 Correct 50 ms 11832 KB Output is correct
16 Correct 54 ms 11592 KB Output is correct
17 Correct 48 ms 11500 KB Output is correct
18 Correct 53 ms 11864 KB Output is correct
19 Correct 47 ms 11608 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 325 ms 61688 KB Output is correct
35 Correct 324 ms 65604 KB Output is correct
36 Correct 355 ms 65060 KB Output is correct
37 Correct 335 ms 64668 KB Output is correct
38 Correct 334 ms 64680 KB Output is correct
39 Correct 348 ms 65712 KB Output is correct
40 Correct 366 ms 68020 KB Output is correct
41 Correct 346 ms 65548 KB Output is correct
42 Correct 357 ms 65808 KB Output is correct
43 Correct 125 ms 26964 KB Output is correct
44 Correct 159 ms 39788 KB Output is correct
45 Correct 139 ms 39804 KB Output is correct
46 Correct 137 ms 39660 KB Output is correct
47 Correct 335 ms 67828 KB Output is correct
48 Correct 352 ms 68296 KB Output is correct
49 Correct 350 ms 69136 KB Output is correct
50 Correct 319 ms 68392 KB Output is correct
51 Correct 334 ms 70412 KB Output is correct
52 Correct 329 ms 72968 KB Output is correct
53 Correct 338 ms 68884 KB Output is correct
54 Correct 347 ms 64296 KB Output is correct
55 Correct 309 ms 63520 KB Output is correct
56 Correct 314 ms 63316 KB Output is correct
57 Correct 311 ms 63828 KB Output is correct
58 Correct 334 ms 64428 KB Output is correct
59 Correct 322 ms 65292 KB Output is correct
60 Correct 320 ms 64656 KB Output is correct
61 Correct 378 ms 74292 KB Output is correct
62 Correct 370 ms 70668 KB Output is correct
63 Correct 371 ms 67744 KB Output is correct