oj.uz

Submission #641997

# Submission time Handle Problem Language Result Execution time Memory
641997 2022-09-18T08:38:01 Z Vanilla Catfish Farm (IOI22_fish) C++17
100 / 100
 547 ms 129344 KB 
#include "fish.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxn = 2e5 + 2;
map <int64, int64> dp [maxn][2];
int64 mx [maxn];
vector <pair <int64, int64> > p[maxn];
vector <pair <int64, int64> > pref [maxn], suff[maxn];
vector <int64> pos [maxn];

int64 psum (int64 i, int64 j) {
  auto it = lower_bound(p[i].begin(), p[i].end(), make_pair(j, (int64) 1e18));
  if (it == p[i].begin()) return 0;
  return (--it)->second;
}

int64 max_weights(int n, int m, vector<int> x, vector<int> y,
                      vector<int> w) {
  for (int i = 0; i < m; i++) {
    pos[++x[i]].push_back(++y[i]);
    p[x[i]].push_back({y[i], w[i]});
  }
  for (int i = 1; i <= n; i++){
    sort(p[i].begin(), p[i].end());
    sort(pos[i].begin(), pos[i].end());
    int64 sum = 0;
    for (auto& [j, c]: p[i]) {
      int64 t = sum;
      sum+=c;
      c+=t;
    }
  }
  for (int i = 1; i <= n; i++){
    vector <int64> ps = {0, n};
    for (auto j: pos[i-1]) ps.push_back(j);
    for (auto j: pos[i+1]) ps.push_back(j);
    sort(ps.begin(), ps.end());
    for (auto j: ps){
      auto it = lower_bound(suff[i-1].begin(), suff[i-1].end(), make_pair(j, -1ll));
      dp[i][j][0] = -psum(i, j);
      if (it != suff[i-1].end()) dp[i][j][0] += it->second;
      it = lower_bound(pref[i - 1].begin(), pref[i - 1].end(), make_pair(j, (int64) 1e18));
      dp[i][j][1] = ((i - 2 >= 0) ? mx[i-2]: 0) + psum(i-1, j);
      if (it != pref[i-1].begin()) dp[i][j][1] = max(dp[i][j][1], (--it)->second + psum(i-1, j));
      mx[i] = max({mx[i], dp[i][j][0], dp[i][j][1]});
    }
    for (auto j: ps) {
      pref[i].push_back(make_pair(j, max((pref[i].empty() ? 0ll: pref[i].back().second), dp[i][j][1] - psum(i, j))));
    }
    reverse(ps.begin(), ps.end());
    for (auto j: ps) {
      suff[i].push_back(make_pair(j, max((suff[i].empty() ? 0ll: suff[i].back().second), max(dp[i][j][0], dp[i][j][1]) + psum(i + 1, j))));
    }
    reverse(suff[i].begin(), suff[i].end());
  }
  return mx[n];
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 75300 KB Output is correct
2 Correct 148 ms 80940 KB Output is correct
3 Correct 82 ms 66792 KB Output is correct
4 Correct 91 ms 66860 KB Output is correct
5 Correct 344 ms 115352 KB Output is correct
6 Correct 500 ms 126676 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 37844 KB Output is correct
2 Correct 218 ms 84808 KB Output is correct
3 Correct 252 ms 92016 KB Output is correct
4 Correct 125 ms 75284 KB Output is correct
5 Correct 148 ms 80884 KB Output is correct
6 Correct 18 ms 37872 KB Output is correct
7 Correct 18 ms 37820 KB Output is correct
8 Correct 17 ms 37844 KB Output is correct
9 Correct 16 ms 37832 KB Output is correct
10 Correct 78 ms 66728 KB Output is correct
11 Correct 100 ms 66800 KB Output is correct
12 Correct 165 ms 78384 KB Output is correct
13 Correct 157 ms 84048 KB Output is correct
14 Correct 146 ms 76844 KB Output is correct
15 Correct 161 ms 78452 KB Output is correct
16 Correct 133 ms 76816 KB Output is correct
17 Correct 151 ms 81120 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 66764 KB Output is correct
2 Correct 81 ms 66856 KB Output is correct
3 Correct 143 ms 79408 KB Output is correct
4 Correct 127 ms 77552 KB Output is correct
5 Correct 202 ms 94224 KB Output is correct
6 Correct 197 ms 94280 KB Output is correct
7 Correct 195 ms 94340 KB Output is correct
8 Correct 198 ms 94116 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 37844 KB Output is correct
2 Correct 17 ms 37844 KB Output is correct
3 Correct 18 ms 37844 KB Output is correct
4 Correct 18 ms 37768 KB Output is correct
5 Correct 18 ms 37844 KB Output is correct
6 Correct 18 ms 37812 KB Output is correct
7 Correct 18 ms 37864 KB Output is correct
8 Correct 18 ms 37844 KB Output is correct
9 Correct 21 ms 37972 KB Output is correct
10 Correct 20 ms 38340 KB Output is correct
11 Correct 19 ms 37972 KB Output is correct
12 Correct 20 ms 38168 KB Output is correct
13 Correct 21 ms 37840 KB Output is correct
14 Correct 19 ms 38108 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 37844 KB Output is correct
2 Correct 17 ms 37844 KB Output is correct
3 Correct 18 ms 37844 KB Output is correct
4 Correct 18 ms 37768 KB Output is correct
5 Correct 18 ms 37844 KB Output is correct
6 Correct 18 ms 37812 KB Output is correct
7 Correct 18 ms 37864 KB Output is correct
8 Correct 18 ms 37844 KB Output is correct
9 Correct 21 ms 37972 KB Output is correct
10 Correct 20 ms 38340 KB Output is correct
11 Correct 19 ms 37972 KB Output is correct
12 Correct 20 ms 38168 KB Output is correct
13 Correct 21 ms 37840 KB Output is correct
14 Correct 19 ms 38108 KB Output is correct
15 Correct 18 ms 38000 KB Output is correct
16 Correct 20 ms 38100 KB Output is correct
17 Correct 64 ms 43288 KB Output is correct
18 Correct 65 ms 45200 KB Output is correct
19 Correct 59 ms 45692 KB Output is correct
20 Correct 59 ms 45716 KB Output is correct
21 Correct 59 ms 45772 KB Output is correct
22 Correct 108 ms 51704 KB Output is correct
23 Correct 27 ms 39252 KB Output is correct
24 Correct 48 ms 41952 KB Output is correct
25 Correct 19 ms 38100 KB Output is correct
26 Correct 26 ms 39092 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 37844 KB Output is correct
2 Correct 17 ms 37844 KB Output is correct
3 Correct 18 ms 37844 KB Output is correct
4 Correct 18 ms 37768 KB Output is correct
5 Correct 18 ms 37844 KB Output is correct
6 Correct 18 ms 37812 KB Output is correct
7 Correct 18 ms 37864 KB Output is correct
8 Correct 18 ms 37844 KB Output is correct
9 Correct 21 ms 37972 KB Output is correct
10 Correct 20 ms 38340 KB Output is correct
11 Correct 19 ms 37972 KB Output is correct
12 Correct 20 ms 38168 KB Output is correct
13 Correct 21 ms 37840 KB Output is correct
14 Correct 19 ms 38108 KB Output is correct
15 Correct 18 ms 38000 KB Output is correct
16 Correct 20 ms 38100 KB Output is correct
17 Correct 64 ms 43288 KB Output is correct
18 Correct 65 ms 45200 KB Output is correct
19 Correct 59 ms 45692 KB Output is correct
20 Correct 59 ms 45716 KB Output is correct
21 Correct 59 ms 45772 KB Output is correct
22 Correct 108 ms 51704 KB Output is correct
23 Correct 27 ms 39252 KB Output is correct
24 Correct 48 ms 41952 KB Output is correct
25 Correct 19 ms 38100 KB Output is correct
26 Correct 26 ms 39092 KB Output is correct
27 Correct 22 ms 39448 KB Output is correct
28 Correct 257 ms 67848 KB Output is correct
29 Correct 358 ms 76212 KB Output is correct
30 Correct 310 ms 79428 KB Output is correct
31 Correct 323 ms 79372 KB Output is correct
32 Correct 339 ms 80576 KB Output is correct
33 Correct 320 ms 79280 KB Output is correct
34 Correct 318 ms 79308 KB Output is correct
35 Correct 135 ms 57056 KB Output is correct
36 Correct 337 ms 82356 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 79 ms 66764 KB Output is correct
2 Correct 81 ms 66856 KB Output is correct
3 Correct 143 ms 79408 KB Output is correct
4 Correct 127 ms 77552 KB Output is correct
5 Correct 202 ms 94224 KB Output is correct
6 Correct 197 ms 94280 KB Output is correct
7 Correct 195 ms 94340 KB Output is correct
8 Correct 198 ms 94116 KB Output is correct
9 Correct 216 ms 94212 KB Output is correct
10 Correct 149 ms 74652 KB Output is correct
11 Correct 288 ms 111528 KB Output is correct
12 Correct 18 ms 37820 KB Output is correct
13 Correct 18 ms 37776 KB Output is correct
14 Correct 17 ms 37844 KB Output is correct
15 Correct 19 ms 37876 KB Output is correct
16 Correct 18 ms 37812 KB Output is correct
17 Correct 18 ms 37796 KB Output is correct
18 Correct 80 ms 66756 KB Output is correct
19 Correct 86 ms 66740 KB Output is correct
20 Correct 79 ms 66760 KB Output is correct
21 Correct 81 ms 66812 KB Output is correct
22 Correct 253 ms 92172 KB Output is correct
23 Correct 312 ms 110876 KB Output is correct
24 Correct 309 ms 111000 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 75300 KB Output is correct
2 Correct 148 ms 80940 KB Output is correct
3 Correct 82 ms 66792 KB Output is correct
4 Correct 91 ms 66860 KB Output is correct
5 Correct 344 ms 115352 KB Output is correct
6 Correct 500 ms 126676 KB Output is correct
7 Correct 20 ms 37844 KB Output is correct
8 Correct 218 ms 84808 KB Output is correct
9 Correct 252 ms 92016 KB Output is correct
10 Correct 125 ms 75284 KB Output is correct
11 Correct 148 ms 80884 KB Output is correct
12 Correct 18 ms 37872 KB Output is correct
13 Correct 18 ms 37820 KB Output is correct
14 Correct 17 ms 37844 KB Output is correct
15 Correct 16 ms 37832 KB Output is correct
16 Correct 78 ms 66728 KB Output is correct
17 Correct 100 ms 66800 KB Output is correct
18 Correct 165 ms 78384 KB Output is correct
19 Correct 157 ms 84048 KB Output is correct
20 Correct 146 ms 76844 KB Output is correct
21 Correct 161 ms 78452 KB Output is correct
22 Correct 133 ms 76816 KB Output is correct
23 Correct 151 ms 81120 KB Output is correct
24 Correct 79 ms 66764 KB Output is correct
25 Correct 81 ms 66856 KB Output is correct
26 Correct 143 ms 79408 KB Output is correct
27 Correct 127 ms 77552 KB Output is correct
28 Correct 202 ms 94224 KB Output is correct
29 Correct 197 ms 94280 KB Output is correct
30 Correct 195 ms 94340 KB Output is correct
31 Correct 198 ms 94116 KB Output is correct
32 Correct 18 ms 37844 KB Output is correct
33 Correct 17 ms 37844 KB Output is correct
34 Correct 18 ms 37844 KB Output is correct
35 Correct 18 ms 37768 KB Output is correct
36 Correct 18 ms 37844 KB Output is correct
37 Correct 18 ms 37812 KB Output is correct
38 Correct 18 ms 37864 KB Output is correct
39 Correct 18 ms 37844 KB Output is correct
40 Correct 21 ms 37972 KB Output is correct
41 Correct 20 ms 38340 KB Output is correct
42 Correct 19 ms 37972 KB Output is correct
43 Correct 20 ms 38168 KB Output is correct
44 Correct 21 ms 37840 KB Output is correct
45 Correct 19 ms 38108 KB Output is correct
46 Correct 18 ms 38000 KB Output is correct
47 Correct 20 ms 38100 KB Output is correct
48 Correct 64 ms 43288 KB Output is correct
49 Correct 65 ms 45200 KB Output is correct
50 Correct 59 ms 45692 KB Output is correct
51 Correct 59 ms 45716 KB Output is correct
52 Correct 59 ms 45772 KB Output is correct
53 Correct 108 ms 51704 KB Output is correct
54 Correct 27 ms 39252 KB Output is correct
55 Correct 48 ms 41952 KB Output is correct
56 Correct 19 ms 38100 KB Output is correct
57 Correct 26 ms 39092 KB Output is correct
58 Correct 22 ms 39448 KB Output is correct
59 Correct 257 ms 67848 KB Output is correct
60 Correct 358 ms 76212 KB Output is correct
61 Correct 310 ms 79428 KB Output is correct
62 Correct 323 ms 79372 KB Output is correct
63 Correct 339 ms 80576 KB Output is correct
64 Correct 320 ms 79280 KB Output is correct
65 Correct 318 ms 79308 KB Output is correct
66 Correct 135 ms 57056 KB Output is correct
67 Correct 337 ms 82356 KB Output is correct
68 Correct 216 ms 94212 KB Output is correct
69 Correct 149 ms 74652 KB Output is correct
70 Correct 288 ms 111528 KB Output is correct
71 Correct 18 ms 37820 KB Output is correct
72 Correct 18 ms 37776 KB Output is correct
73 Correct 17 ms 37844 KB Output is correct
74 Correct 19 ms 37876 KB Output is correct
75 Correct 18 ms 37812 KB Output is correct
76 Correct 18 ms 37796 KB Output is correct
77 Correct 80 ms 66756 KB Output is correct
78 Correct 86 ms 66740 KB Output is correct
79 Correct 79 ms 66760 KB Output is correct
80 Correct 81 ms 66812 KB Output is correct
81 Correct 253 ms 92172 KB Output is correct
82 Correct 312 ms 110876 KB Output is correct
83 Correct 309 ms 111000 KB Output is correct
84 Correct 486 ms 104828 KB Output is correct
85 Correct 519 ms 106896 KB Output is correct
86 Correct 519 ms 124512 KB Output is correct
87 Correct 534 ms 129344 KB Output is correct
88 Correct 19 ms 37892 KB Output is correct
89 Correct 547 ms 128804 KB Output is correct
90 Correct 416 ms 118024 KB Output is correct
91 Correct 396 ms 115396 KB Output is correct