oj.uz

Submission #800624

# Submission time Handle Problem Language Result Execution time Memory
800624 2023-08-01T17:00:25 Z Ronin13 Catfish Farm (IOI22_fish) C++17
100 / 100
 670 ms 158020 KB 
#include "fish.h"
#include <bits/stdc++.h>
#include <vector>
#define ll long long 
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;

map <pii, ll> mp;
const int nmax = 300001;

vector <vector <int> > ff(nmax);
vector <vector <int> > pos(nmax);
vector <vector <ll> > smx(nmax), pmx(nmax);
vector <vector <ll> > pref(nmax);
long long max_weights(int n, int m, vector<int> x, vector<int> y,vector<int> w) {
  
  for(int i = 0; i < m; i++){
    x[i]++;
    y[i]++;
    mp[{x[i], y[i]}] = w[i];
    ff[x[i]].pb(y[i]); 
  }
  for(int i= 1; i <= n; i++){
      for(int j : ff[i - 1]) pos[i].pb(j);
      for(int j : ff[i + 1]) pos[i].pb(j);
      for(int j : ff[i]) pos[i].pb(j);
      pos[i].pb(-1);pos[i].pb(n + 1);
      sort(pos[i].begin(), pos[i].end());
      pos[i].erase(unique(pos[i].begin(), pos[i].end()), pos[i].end());
      pref[i].resize(pos[i].size());
      pref[i][0] = mp[{i, pos[i][0]}];
      for(int j = 1; j < pref[i].size(); ++j){
          pref[i][j] = pref[i][j - 1] + mp[{i, pos[i][j]}];
      }
  }
  ll p;
  ll u;
  for(int i = 1; i <= n; i++){
      vector <ll> dp, DP;
      dp.resize(pos[i].size());
      DP.resize(pos[i].size());
      smx[i].resize(pos[i].size());
      pmx[i].resize(pos[i].size());
      if(i == 1){
        fill(dp.begin(), dp.end(), 0);
        fill(DP.begin(), DP.end(), 0);
        p = dp[0];
        u = DP.back();
      }  
      else{
          for(int j = 0; j < pos[i].size(); j++){
              int val = pos[i][j];
              int u = lower_bound(pos[i - 1].begin(), pos[i - 1].end(), val) - pos[i - 1].begin();
             // cout << u << ' ';   
              dp[j] = smx[i - 1][u] - pref[i][j];
              u = upper_bound(pos[i - 1].begin(), pos[i - 1].end(), val) - pos[i - 1].begin() -1;
              
              DP[j] = pmx[i - 1][u] + pref[i - 1][u];
          }
         // DP[0] = max(DP[0], pmx[i - 1].back());
          dp.back() = max(dp.back(), DP.back());
          DP[0] = max({DP[0], p, u});
          p = dp[0];
          u= DP.back();
      }
      if(i == n)
        return max(dp[0], DP.back());
      int o = upper_bound(pos[i + 1].begin(), pos[i + 1].end(), pos[i].back()) - 
              pos[i + 1].begin() - 1;
      smx[i].back() = dp.back() + pref[i + 1][o];
      for(int j = pos[i].size() - 2; j >= 0; j--){
        int val = pos[i][j];
        int o = upper_bound(pos[i + 1].begin(), pos[i + 1].end(), val) - pos[i + 1].begin() - 1;
        smx[i][j] = max(smx[i][j + 1], dp[j] + pref[i + 1][o]);
      }
      pmx[i][0] = DP[0]- pref[i][0];
      for(int j = 1; j < pos[i].size(); j++){
          pmx[i][j] = max(pmx[i][j - 1], DP[j] - pref[i][j]);
      }
      
  }

  return 0;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:38:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |       for(int j = 1; j < pref[i].size(); ++j){
      |                      ~~^~~~~~~~~~~~~~~~
fish.cpp:57:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |           for(int j = 0; j < pos[i].size(); j++){
      |                          ~~^~~~~~~~~~~~~~~
fish.cpp:83:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |       for(int j = 1; j < pos[i].size(); j++){
      |                      ~~^~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 180 ms 76168 KB Output is correct
2 Correct 191 ms 83060 KB Output is correct
3 Correct 83 ms 60476 KB Output is correct
4 Correct 83 ms 60460 KB Output is correct
5 Correct 615 ms 157420 KB Output is correct
6 Correct 609 ms 158020 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 35416 KB Output is correct
2 Correct 253 ms 89208 KB Output is correct
3 Correct 313 ms 97264 KB Output is correct
4 Correct 162 ms 76144 KB Output is correct
5 Correct 188 ms 83004 KB Output is correct
6 Correct 18 ms 35412 KB Output is correct
7 Correct 18 ms 35428 KB Output is correct
8 Correct 17 ms 35540 KB Output is correct
9 Correct 16 ms 35420 KB Output is correct
10 Correct 80 ms 60492 KB Output is correct
11 Correct 86 ms 60476 KB Output is correct
12 Correct 196 ms 83616 KB Output is correct
13 Correct 242 ms 91956 KB Output is correct
14 Correct 188 ms 79872 KB Output is correct
15 Correct 176 ms 77872 KB Output is correct
16 Correct 185 ms 79948 KB Output is correct
17 Correct 204 ms 84808 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 60492 KB Output is correct
2 Correct 83 ms 60568 KB Output is correct
3 Correct 123 ms 66280 KB Output is correct
4 Correct 116 ms 66388 KB Output is correct
5 Correct 171 ms 75412 KB Output is correct
6 Correct 171 ms 74748 KB Output is correct
7 Correct 207 ms 75356 KB Output is correct
8 Correct 174 ms 75336 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35540 KB Output is correct
2 Correct 17 ms 35472 KB Output is correct
3 Correct 18 ms 35468 KB Output is correct
4 Correct 18 ms 35548 KB Output is correct
5 Correct 18 ms 35540 KB Output is correct
6 Correct 17 ms 35540 KB Output is correct
7 Correct 18 ms 35488 KB Output is correct
8 Correct 22 ms 35584 KB Output is correct
9 Correct 18 ms 35668 KB Output is correct
10 Correct 19 ms 35932 KB Output is correct
11 Correct 18 ms 35676 KB Output is correct
12 Correct 19 ms 35796 KB Output is correct
13 Correct 17 ms 35544 KB Output is correct
14 Correct 18 ms 35660 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35540 KB Output is correct
2 Correct 17 ms 35472 KB Output is correct
3 Correct 18 ms 35468 KB Output is correct
4 Correct 18 ms 35548 KB Output is correct
5 Correct 18 ms 35540 KB Output is correct
6 Correct 17 ms 35540 KB Output is correct
7 Correct 18 ms 35488 KB Output is correct
8 Correct 22 ms 35584 KB Output is correct
9 Correct 18 ms 35668 KB Output is correct
10 Correct 19 ms 35932 KB Output is correct
11 Correct 18 ms 35676 KB Output is correct
12 Correct 19 ms 35796 KB Output is correct
13 Correct 17 ms 35544 KB Output is correct
14 Correct 18 ms 35660 KB Output is correct
15 Correct 17 ms 35660 KB Output is correct
16 Correct 18 ms 35872 KB Output is correct
17 Correct 63 ms 43620 KB Output is correct
18 Correct 56 ms 42924 KB Output is correct
19 Correct 63 ms 42956 KB Output is correct
20 Correct 53 ms 42188 KB Output is correct
21 Correct 53 ms 42180 KB Output is correct
22 Correct 92 ms 48848 KB Output is correct
23 Correct 29 ms 38208 KB Output is correct
24 Correct 60 ms 42936 KB Output is correct
25 Correct 19 ms 35832 KB Output is correct
26 Correct 30 ms 37888 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35540 KB Output is correct
2 Correct 17 ms 35472 KB Output is correct
3 Correct 18 ms 35468 KB Output is correct
4 Correct 18 ms 35548 KB Output is correct
5 Correct 18 ms 35540 KB Output is correct
6 Correct 17 ms 35540 KB Output is correct
7 Correct 18 ms 35488 KB Output is correct
8 Correct 22 ms 35584 KB Output is correct
9 Correct 18 ms 35668 KB Output is correct
10 Correct 19 ms 35932 KB Output is correct
11 Correct 18 ms 35676 KB Output is correct
12 Correct 19 ms 35796 KB Output is correct
13 Correct 17 ms 35544 KB Output is correct
14 Correct 18 ms 35660 KB Output is correct
15 Correct 17 ms 35660 KB Output is correct
16 Correct 18 ms 35872 KB Output is correct
17 Correct 63 ms 43620 KB Output is correct
18 Correct 56 ms 42924 KB Output is correct
19 Correct 63 ms 42956 KB Output is correct
20 Correct 53 ms 42188 KB Output is correct
21 Correct 53 ms 42180 KB Output is correct
22 Correct 92 ms 48848 KB Output is correct
23 Correct 29 ms 38208 KB Output is correct
24 Correct 60 ms 42936 KB Output is correct
25 Correct 19 ms 35832 KB Output is correct
26 Correct 30 ms 37888 KB Output is correct
27 Correct 25 ms 37176 KB Output is correct
28 Correct 252 ms 72232 KB Output is correct
29 Correct 417 ms 96756 KB Output is correct
30 Correct 490 ms 129900 KB Output is correct
31 Correct 517 ms 129228 KB Output is correct
32 Correct 350 ms 81096 KB Output is correct
33 Correct 517 ms 131736 KB Output is correct
34 Correct 529 ms 131824 KB Output is correct
35 Correct 151 ms 65612 KB Output is correct
36 Correct 483 ms 118432 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 82 ms 60492 KB Output is correct
2 Correct 83 ms 60568 KB Output is correct
3 Correct 123 ms 66280 KB Output is correct
4 Correct 116 ms 66388 KB Output is correct
5 Correct 171 ms 75412 KB Output is correct
6 Correct 171 ms 74748 KB Output is correct
7 Correct 207 ms 75356 KB Output is correct
8 Correct 174 ms 75336 KB Output is correct
9 Correct 214 ms 92352 KB Output is correct
10 Correct 133 ms 63064 KB Output is correct
11 Correct 274 ms 90592 KB Output is correct
12 Correct 19 ms 35528 KB Output is correct
13 Correct 19 ms 35504 KB Output is correct
14 Correct 18 ms 35540 KB Output is correct
15 Correct 19 ms 35468 KB Output is correct
16 Correct 18 ms 35512 KB Output is correct
17 Correct 18 ms 35488 KB Output is correct
18 Correct 83 ms 60492 KB Output is correct
19 Correct 81 ms 60496 KB Output is correct
20 Correct 82 ms 60528 KB Output is correct
21 Correct 82 ms 60504 KB Output is correct
22 Correct 241 ms 92676 KB Output is correct
23 Correct 332 ms 105076 KB Output is correct
24 Correct 342 ms 107224 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 180 ms 76168 KB Output is correct
2 Correct 191 ms 83060 KB Output is correct
3 Correct 83 ms 60476 KB Output is correct
4 Correct 83 ms 60460 KB Output is correct
5 Correct 615 ms 157420 KB Output is correct
6 Correct 609 ms 158020 KB Output is correct
7 Correct 19 ms 35416 KB Output is correct
8 Correct 253 ms 89208 KB Output is correct
9 Correct 313 ms 97264 KB Output is correct
10 Correct 162 ms 76144 KB Output is correct
11 Correct 188 ms 83004 KB Output is correct
12 Correct 18 ms 35412 KB Output is correct
13 Correct 18 ms 35428 KB Output is correct
14 Correct 17 ms 35540 KB Output is correct
15 Correct 16 ms 35420 KB Output is correct
16 Correct 80 ms 60492 KB Output is correct
17 Correct 86 ms 60476 KB Output is correct
18 Correct 196 ms 83616 KB Output is correct
19 Correct 242 ms 91956 KB Output is correct
20 Correct 188 ms 79872 KB Output is correct
21 Correct 176 ms 77872 KB Output is correct
22 Correct 185 ms 79948 KB Output is correct
23 Correct 204 ms 84808 KB Output is correct
24 Correct 82 ms 60492 KB Output is correct
25 Correct 83 ms 60568 KB Output is correct
26 Correct 123 ms 66280 KB Output is correct
27 Correct 116 ms 66388 KB Output is correct
28 Correct 171 ms 75412 KB Output is correct
29 Correct 171 ms 74748 KB Output is correct
30 Correct 207 ms 75356 KB Output is correct
31 Correct 174 ms 75336 KB Output is correct
32 Correct 17 ms 35540 KB Output is correct
33 Correct 17 ms 35472 KB Output is correct
34 Correct 18 ms 35468 KB Output is correct
35 Correct 18 ms 35548 KB Output is correct
36 Correct 18 ms 35540 KB Output is correct
37 Correct 17 ms 35540 KB Output is correct
38 Correct 18 ms 35488 KB Output is correct
39 Correct 22 ms 35584 KB Output is correct
40 Correct 18 ms 35668 KB Output is correct
41 Correct 19 ms 35932 KB Output is correct
42 Correct 18 ms 35676 KB Output is correct
43 Correct 19 ms 35796 KB Output is correct
44 Correct 17 ms 35544 KB Output is correct
45 Correct 18 ms 35660 KB Output is correct
46 Correct 17 ms 35660 KB Output is correct
47 Correct 18 ms 35872 KB Output is correct
48 Correct 63 ms 43620 KB Output is correct
49 Correct 56 ms 42924 KB Output is correct
50 Correct 63 ms 42956 KB Output is correct
51 Correct 53 ms 42188 KB Output is correct
52 Correct 53 ms 42180 KB Output is correct
53 Correct 92 ms 48848 KB Output is correct
54 Correct 29 ms 38208 KB Output is correct
55 Correct 60 ms 42936 KB Output is correct
56 Correct 19 ms 35832 KB Output is correct
57 Correct 30 ms 37888 KB Output is correct
58 Correct 25 ms 37176 KB Output is correct
59 Correct 252 ms 72232 KB Output is correct
60 Correct 417 ms 96756 KB Output is correct
61 Correct 490 ms 129900 KB Output is correct
62 Correct 517 ms 129228 KB Output is correct
63 Correct 350 ms 81096 KB Output is correct
64 Correct 517 ms 131736 KB Output is correct
65 Correct 529 ms 131824 KB Output is correct
66 Correct 151 ms 65612 KB Output is correct
67 Correct 483 ms 118432 KB Output is correct
68 Correct 214 ms 92352 KB Output is correct
69 Correct 133 ms 63064 KB Output is correct
70 Correct 274 ms 90592 KB Output is correct
71 Correct 19 ms 35528 KB Output is correct
72 Correct 19 ms 35504 KB Output is correct
73 Correct 18 ms 35540 KB Output is correct
74 Correct 19 ms 35468 KB Output is correct
75 Correct 18 ms 35512 KB Output is correct
76 Correct 18 ms 35488 KB Output is correct
77 Correct 83 ms 60492 KB Output is correct
78 Correct 81 ms 60496 KB Output is correct
79 Correct 82 ms 60528 KB Output is correct
80 Correct 82 ms 60504 KB Output is correct
81 Correct 241 ms 92676 KB Output is correct
82 Correct 332 ms 105076 KB Output is correct
83 Correct 342 ms 107224 KB Output is correct
84 Correct 604 ms 143232 KB Output is correct
85 Correct 570 ms 144636 KB Output is correct
86 Correct 588 ms 154452 KB Output is correct
87 Correct 650 ms 158016 KB Output is correct
88 Correct 18 ms 35544 KB Output is correct
89 Correct 670 ms 157936 KB Output is correct
90 Correct 524 ms 136608 KB Output is correct
91 Correct 452 ms 113080 KB Output is correct