oj.uz

Submission #1046759

# Submission time Handle Problem Language Result Execution time Memory
1046759 2024-08-06T21:35:56 Z Trent Catfish Farm (IOI22_fish) C++17
100 / 100
 794 ms 145116 KB 
    #include "fish.h"
    #include "bits/stdc++.h";
    using namespace std;
    #define forR(i, x) for(int i = 0; i < (x); ++i)
    #define REP(i, a, b) for(int i = (a); i < (b); ++i)
    #define all(x) x.begin(), x.end()
    typedef long long ll;
    typedef vector<ll> vll;
    typedef vector<vll> vvll;
    typedef vector<int> vi;
    typedef vector<vi> vvi;
    struct pii{int a, b;};
     
    ll INF = 1e16;
     
    ll rSum(int i, vector<pii>& wx, vll& psa) {
      int ind = upper_bound(all(wx), i, [](int a, pii b){return a < b.a;}) - wx.begin();
      if(ind - 1 == -1) return 0;
      return psa[ind-1];
    }
     
    long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                          std::vector<int> W) {
      vector<vector<pii>> wx(N);
      forR(i, M) wx[X[i]].push_back({Y[i], W[i]});
      forR(i, N) sort(all(wx[i]), [](pii a, pii b){return a.a < b.a;});
      vvll wpsa(N);
      forR(i, N) if(!wx[i].empty()) {
        wpsa[i].push_back(wx[i][0].b);
        REP(j, 1, wx[i].size()) wpsa[i].push_back(wx[i][j].b + wpsa[i].back());
      }
     
      vector<set<int>> sCare(N);
      forR(i, M) {
        if(X[i] > 0) sCare[X[i]-1].insert(Y[i] + 1);
        if(X[i] + 1 < N) sCare[X[i] + 1].insert(Y[i] + 1);
        if(X[i] + 2 < N) sCare[X[i] + 2].insert(Y[i] + 1);
        sCare[X[i]].insert(Y[i]+1);
      }
      forR(i, N) sCare[i].insert(0);
      vector<vi> care(N);
      forR(i, N) for(int j : sCare[i]) care[i].push_back(j);
      vvll I(N), D(N), E(N);
      forR(i, N) I[i].resize(care[i].size()), D[i].resize(care[i].size()), E[i].resize(care[i].size());
      // h = HEIGHT, not the index of last element!
      forR(i, N) {
        ll besIE = -INF, besII = -INF;
        if(i > 0) {
          forR(ki, care[i-1].size()) {
            int k = care[i-1][ki];
            besIE = max(besIE, E[i-1][ki] - rSum(k-1, wx[i-1], wpsa[i-1]));
          }
        }
        int api = 0;
        forR(hi, care[i].size()) {
          int h = care[i][hi];
          if(h > 0) {
            if(i == 0) I[i][hi] = 0;
            else {
              I[i][hi] = max(I[i][hi], besIE + rSum(h-1, wx[i-1], wpsa[i-1]));
              while(api < care[i-1].size() && care[i-1][api] <= h) {
                int k = care[i-1][api];
                besII = max(besII, I[i-1][api] - rSum(k-1, wx[i-1], wpsa[i-1]));
                ++api;
              }
              I[i][hi] = max(I[i][hi], besII + rSum(h-1, wx[i-1], wpsa[i-1]));
            }
          }
        }
     
        api = (int) care[i-1].size() - 1;
        ll besD = -INF;
        for(int hi = (int) care[i].size() - 1; hi >= 0; --hi){
          int h = care[i][hi];
          if(h > 0) {
            if(i == 0) D[i][hi] = 0;
            else {
              while(api >= 0 && care[i-1][api] >= h + 1) {
                int k = care[i-1][api];
                besD = max(besD, max(I[i-1][api], D[i-1][api]) + rSum(k-1, wx[i], wpsa[i]));
                --api;
              }
              D[i][hi] = max(D[i][hi], besD - rSum(h-1, wx[i], wpsa[i]));
            }
          }
        }
     
        ll besE = -INF;
        if(i > 0) {
          forR(yi, care[i-1].size()) besE = max(besE, E[i-1][yi]);
        }
        forR(hi, care[i].size()){
          int h = care[i][hi];
          if(i == 0) E[i][hi] = 0;
          else {
            int pInd = lower_bound(all(care[i-1]), h) - care[i-1].begin();
            if(care[i-1][pInd] == h) {
              ll tot = max(I[i-1][pInd], D[i-1][pInd]) + rSum(h-1, wx[i], wpsa[i]);
              E[i][hi] = max(E[i][hi], max(tot, besE));
            }
          }
        }
      }
      ll mx = 0;
      forR(hi, care[N-1].size()) if(care[N-1][hi] > 0) mx = max(mx, max(I[N-1][hi], D[N-1][hi]));
      forR(hi, care[N-1].size()) mx = max(mx, E[N-1][hi]);
      return mx;
    }

Compilation message

fish.cpp:2:29: warning: extra tokens at end of #include directive
    2 |     #include "bits/stdc++.h";
      |                             ^
fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:5:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<pii>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |     #define REP(i, a, b) for(int i = (a); i < (b); ++i)
      |                                             ^
fish.cpp:30:9: note: in expansion of macro 'REP'
   30 |         REP(j, 1, wx[i].size()) wpsa[i].push_back(wx[i][j].b + wpsa[i].back());
      |         ^~~
fish.cpp:4:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 |     #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                         ^
fish.cpp:49:11: note: in expansion of macro 'forR'
   49 |           forR(ki, care[i-1].size()) {
      |           ^~~~
fish.cpp:4:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 |     #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                         ^
fish.cpp:55:9: note: in expansion of macro 'forR'
   55 |         forR(hi, care[i].size()) {
      |         ^~~~
fish.cpp:61:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |               while(api < care[i-1].size() && care[i-1][api] <= h) {
      |                     ~~~~^~~~~~~~~~~~~~~~~~
fish.cpp:4:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 |     #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                         ^
fish.cpp:90:11: note: in expansion of macro 'forR'
   90 |           forR(yi, care[i-1].size()) besE = max(besE, E[i-1][yi]);
      |           ^~~~
fish.cpp:4:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 |     #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                         ^
fish.cpp:92:9: note: in expansion of macro 'forR'
   92 |         forR(hi, care[i].size()){
      |         ^~~~
fish.cpp:4:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 |     #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                         ^
fish.cpp:105:7: note: in expansion of macro 'forR'
  105 |       forR(hi, care[N-1].size()) if(care[N-1][hi] > 0) mx = max(mx, max(I[N-1][hi], D[N-1][hi]));
      |       ^~~~
fish.cpp:4:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 |     #define forR(i, x) for(int i = 0; i < (x); ++i)
      |                                         ^
fish.cpp:106:7: note: in expansion of macro 'forR'
  106 |       forR(hi, care[N-1].size()) mx = max(mx, E[N-1][hi]);
      |       ^~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 53828 KB Output is correct
2 Correct 144 ms 62536 KB Output is correct
3 Correct 26 ms 36440 KB Output is correct
4 Correct 31 ms 36440 KB Output is correct
5 Correct 737 ms 137440 KB Output is correct
6 Correct 478 ms 137640 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 225 ms 64956 KB Output is correct
3 Correct 268 ms 73920 KB Output is correct
4 Correct 115 ms 53836 KB Output is correct
5 Correct 140 ms 62512 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 26 ms 36248 KB Output is correct
11 Correct 26 ms 36444 KB Output is correct
12 Correct 161 ms 60044 KB Output is correct
13 Correct 193 ms 70156 KB Output is correct
14 Correct 136 ms 57052 KB Output is correct
15 Correct 139 ms 54216 KB Output is correct
16 Correct 133 ms 57088 KB Output is correct
17 Correct 156 ms 63312 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 36444 KB Output is correct
2 Correct 27 ms 36440 KB Output is correct
3 Correct 49 ms 40284 KB Output is correct
4 Correct 43 ms 41540 KB Output is correct
5 Correct 73 ms 49740 KB Output is correct
6 Correct 70 ms 49744 KB Output is correct
7 Correct 69 ms 49492 KB Output is correct
8 Correct 72 ms 49492 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 604 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 33 ms 7312 KB Output is correct
18 Correct 40 ms 6916 KB Output is correct
19 Correct 27 ms 7128 KB Output is correct
20 Correct 31 ms 6292 KB Output is correct
21 Correct 24 ms 6236 KB Output is correct
22 Correct 55 ms 12000 KB Output is correct
23 Correct 10 ms 3160 KB Output is correct
24 Correct 28 ms 7240 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 8 ms 2808 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 0 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 33 ms 7312 KB Output is correct
18 Correct 40 ms 6916 KB Output is correct
19 Correct 27 ms 7128 KB Output is correct
20 Correct 31 ms 6292 KB Output is correct
21 Correct 24 ms 6236 KB Output is correct
22 Correct 55 ms 12000 KB Output is correct
23 Correct 10 ms 3160 KB Output is correct
24 Correct 28 ms 7240 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 8 ms 2808 KB Output is correct
27 Correct 3 ms 2396 KB Output is correct
28 Correct 225 ms 32188 KB Output is correct
29 Correct 427 ms 57424 KB Output is correct
30 Correct 696 ms 98136 KB Output is correct
31 Correct 673 ms 96888 KB Output is correct
32 Correct 269 ms 39544 KB Output is correct
33 Correct 664 ms 100732 KB Output is correct
34 Correct 682 ms 100920 KB Output is correct
35 Correct 123 ms 28888 KB Output is correct
36 Correct 601 ms 82788 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 36444 KB Output is correct
2 Correct 27 ms 36440 KB Output is correct
3 Correct 49 ms 40284 KB Output is correct
4 Correct 43 ms 41540 KB Output is correct
5 Correct 73 ms 49740 KB Output is correct
6 Correct 70 ms 49744 KB Output is correct
7 Correct 69 ms 49492 KB Output is correct
8 Correct 72 ms 49492 KB Output is correct
9 Correct 121 ms 69972 KB Output is correct
10 Correct 52 ms 28496 KB Output is correct
11 Correct 133 ms 56704 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 26 ms 36444 KB Output is correct
19 Correct 26 ms 36396 KB Output is correct
20 Correct 26 ms 36180 KB Output is correct
21 Correct 26 ms 36444 KB Output is correct
22 Correct 153 ms 68432 KB Output is correct
23 Correct 182 ms 76884 KB Output is correct
24 Correct 228 ms 80468 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 53828 KB Output is correct
2 Correct 144 ms 62536 KB Output is correct
3 Correct 26 ms 36440 KB Output is correct
4 Correct 31 ms 36440 KB Output is correct
5 Correct 737 ms 137440 KB Output is correct
6 Correct 478 ms 137640 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 225 ms 64956 KB Output is correct
9 Correct 268 ms 73920 KB Output is correct
10 Correct 115 ms 53836 KB Output is correct
11 Correct 140 ms 62512 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 26 ms 36248 KB Output is correct
17 Correct 26 ms 36444 KB Output is correct
18 Correct 161 ms 60044 KB Output is correct
19 Correct 193 ms 70156 KB Output is correct
20 Correct 136 ms 57052 KB Output is correct
21 Correct 139 ms 54216 KB Output is correct
22 Correct 133 ms 57088 KB Output is correct
23 Correct 156 ms 63312 KB Output is correct
24 Correct 25 ms 36444 KB Output is correct
25 Correct 27 ms 36440 KB Output is correct
26 Correct 49 ms 40284 KB Output is correct
27 Correct 43 ms 41540 KB Output is correct
28 Correct 73 ms 49740 KB Output is correct
29 Correct 70 ms 49744 KB Output is correct
30 Correct 69 ms 49492 KB Output is correct
31 Correct 72 ms 49492 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 604 KB Output is correct
42 Correct 0 ms 604 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 604 KB Output is correct
46 Correct 1 ms 604 KB Output is correct
47 Correct 1 ms 604 KB Output is correct
48 Correct 33 ms 7312 KB Output is correct
49 Correct 40 ms 6916 KB Output is correct
50 Correct 27 ms 7128 KB Output is correct
51 Correct 31 ms 6292 KB Output is correct
52 Correct 24 ms 6236 KB Output is correct
53 Correct 55 ms 12000 KB Output is correct
54 Correct 10 ms 3160 KB Output is correct
55 Correct 28 ms 7240 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 8 ms 2808 KB Output is correct
58 Correct 3 ms 2396 KB Output is correct
59 Correct 225 ms 32188 KB Output is correct
60 Correct 427 ms 57424 KB Output is correct
61 Correct 696 ms 98136 KB Output is correct
62 Correct 673 ms 96888 KB Output is correct
63 Correct 269 ms 39544 KB Output is correct
64 Correct 664 ms 100732 KB Output is correct
65 Correct 682 ms 100920 KB Output is correct
66 Correct 123 ms 28888 KB Output is correct
67 Correct 601 ms 82788 KB Output is correct
68 Correct 121 ms 69972 KB Output is correct
69 Correct 52 ms 28496 KB Output is correct
70 Correct 133 ms 56704 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 0 ms 344 KB Output is correct
73 Correct 0 ms 348 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 26 ms 36444 KB Output is correct
78 Correct 26 ms 36396 KB Output is correct
79 Correct 26 ms 36180 KB Output is correct
80 Correct 26 ms 36444 KB Output is correct
81 Correct 153 ms 68432 KB Output is correct
82 Correct 182 ms 76884 KB Output is correct
83 Correct 228 ms 80468 KB Output is correct
84 Correct 782 ms 119620 KB Output is correct
85 Correct 794 ms 127172 KB Output is correct
86 Correct 533 ms 140676 KB Output is correct
87 Correct 537 ms 145116 KB Output is correct
88 Correct 0 ms 348 KB Output is correct
89 Correct 525 ms 145096 KB Output is correct
90 Correct 406 ms 112976 KB Output is correct
91 Correct 246 ms 85588 KB Output is correct