oj.uz

Submission #800364

# Submission time Handle Problem Language Result Execution time Memory
800364 2023-08-01T13:47:16 Z gesgha Catfish Farm (IOI22_fish) C++17
100 / 100
 274 ms 45788 KB 
#include "fish.h"
#include <bits/stdc++.h>
 
#define fr(i, a, b) for (int i = a; i <= b; i++)
#define rf(i, a, b) for (int i = a; i >= b; i--)
#define fe(x, y) for (auto& x : y)
 
#define fi first
#define se second
#define pb push_back
  
#define all(x) x.begin(), x.end()
#define pw(x) (1LL << (x))
#define sz(x) (int)x.size()
  
using namespace std;
 
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define fbo find_by_order
#define ook order_of_key
template <typename T>
using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
 
template <typename T>
using ve = vector<T>;
 
template <typename T>
bool umx(T& a, T b) {
    return a < b ? a = b, 1 : 0;
}
 
template <typename T>
bool umn(T& a, T b) {
    return a > b ? a = b, 1 : 0;
}
 
using ll = long long;
using ld = long double;
using pll = pair<ll, ll>;
using pii = pair<int, int>;
 
const int oo = 1e9;
const ll OO = 1e18;
const int N = 1e5 + 100;
const int M = 3000;
const int K = 110;
const int mod = 1e9 + 7;
const bool TEST = 1;
 
void precalc() {}
 
ve <ll> dp1[N]; // before the i-th is filled, back -- all filled
ve <ll> dp2[N]; // before the i-th is filled, back -- all filled
ve <ll> zero[N]; // i points is used
ve <pii> YY[N];
 
bool vs[M][M];
 
long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
  // freopen("output.txt", "w", stdout);
  // if(N <= 4e3) {
  //   for (int i = 0; i < M; i++) {
  //     vs[X[i]][Y[i]] = 1;
  //   }
  //   for (int i  = 0; i < N; i++) {
  //     for (int j = 0; j < N; j++) {
  //       if (!vs[i][j]) {
  //         X.pb(i);
  //         Y.pb(j);
  //         W.pb(0);
  //       }
  //     }
  //   }
  // }
 
  for (int i = 0; i < sz(Y); i++) {
    dp1[X[i]].pb(-OO);
    dp2[X[i]].pb(-OO);
    zero[X[i]].pb(-OO);
    YY[X[i]].pb({Y[i], W[i]});
  }
  for (int i = 0; i < N; i++) {
    sort(all(YY[i]));
    dp1[i].pb(-OO);
    dp2[i].pb(-OO);
    zero[i].pb(-OO);
  }
  for (int i = 0; i < sz(dp1[0]); i++) {
    dp1[0][i] = 0;
    dp2[0][i] = 0;
    zero[0][i] = 0;
  }
  for (int i = 1; i < N; i++) {
    // from dp1
    { // to zero 
      int Z = 0;
      ll S = 0;
      for (int j = 0; j < sz(YY[i - 1]); j++) {
        while (Z < sz(YY[i]) && YY[i - 1][j].fi - 1 >= YY[i][Z].fi) {
          S += YY[i][Z].se;
          Z++;
        }
        umx(zero[i][Z], dp1[i - 1][j] + S);
      }
      for (; Z < sz(YY[i]); Z++) S += YY[i][Z].se;
      umx(zero[i].back(), dp1[i - 1].back() + S);
    }
    { // to dp1
      umx(dp1[i].back(), dp1[i - 1].back());
      ll S = 0;
      int ptr = sz(YY[i - 1]) - 1;
      ll mx = dp1[i - 1].back();
      for (int j = sz(YY[i]) - 1; j >= 0; j--) {
        while(ptr >= 0 && YY[i - 1][ptr].fi - 1 >= YY[i][j].fi) {
          mx = max(mx, dp1[i - 1][ptr] - S);
          ptr--;
        }
        S += YY[i][j].se;
        umx(dp1[i][j], mx + S);
      }
    }
    // from zero
    for (int j = 0; j <= sz(YY[i - 1]); j++) umx(zero[i][0], zero[i - 1][j]); // to zero
    { // to dp1 & dp2
      { // back
        ll S = 0;
        for (int j = sz(YY[i - 1]); j >= 0; j--) {
          umx(dp1[i].back(), S + zero[i - 1][j]);
          umx(dp2[i].back(), S + zero[i - 1][j]);
          if (j - 1 >= 0) S += YY[i - 1][j - 1].se;
        }
      }
      ll res = 0;
      for (int j = 0; j <= sz(YY[i - 1]); j++) umx(res, zero[i - 1][j]);
      ll S = 0;
      ll mx = zero[i - 1][0];
      int ptr = 0;
      for (int j = 0; j < sz(YY[i]); j++) {
        while (ptr < sz(YY[i - 1]) && YY[i - 1][ptr].fi <= YY[i][j].fi - 1) {
          S += YY[i - 1][ptr].se;
          ptr++;
          umx (mx, zero[i - 1][ptr] - S);
        }
        umx(dp1[i][j], max(res, mx + S));
        umx(dp2[i][j], max(res, mx + S));
      }
    }
    // from dp2
    { // to zero
      int Z = 0;
      ll S = 0;
      for (int j = 0; j < sz(YY[i - 1]); j++) {
        while (Z < sz(YY[i]) && YY[i - 1][j].fi - 1 >= YY[i][Z].fi) {
          S += YY[i][Z].se;
          Z++;
        }
        umx(zero[i][Z], dp2[i - 1][j] + S);
      }
      for (; Z < sz(YY[i]); Z++) S += YY[i][Z].se;
      umx(zero[i].back(), dp2[i - 1].back() + S);
    }
    { // to dp2 & dp1
      ll S = 0;
      ll mx = 0;
      int ptr = 0;
      for (int j = 0; j < sz(YY[i]); j++) {
        while (ptr < sz(YY[i - 1]) && YY[i - 1][ptr].fi <= YY[i][j].fi - 1) {
          umx (mx, dp2[i - 1][ptr] - S);
          S += YY[i - 1][ptr].se;
          ptr++;
        }
        umx(dp2[i][j], mx + S);
        umx(dp1[i][j], mx + S);
      }
      for (; ptr < sz(YY[i - 1]); ptr++) {
        umx(mx, dp2[i - 1][ptr] - S);
        S += YY[i - 1][ptr].se;
      }
      umx(mx, dp2[i - 1].back() - S);
      umx(dp2[i].back(), mx + S);
      umx(dp1[i].back(), mx + S);
    }
  }
  // cout << zero[2][1] << endl;
  ll ans = 0;
  fe(x, dp1[N - 1]) umx(ans, x);
  fe(x, dp2[N - 1]) umx(ans, x);
  fe(x, zero[N - 1]) umx(ans, x);
  return ans;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 22516 KB Output is correct
2 Correct 49 ms 24536 KB Output is correct
3 Correct 17 ms 19028 KB Output is correct
4 Correct 18 ms 19040 KB Output is correct
5 Correct 115 ms 35512 KB Output is correct
6 Correct 206 ms 39092 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 68 ms 27020 KB Output is correct
3 Correct 83 ms 30068 KB Output is correct
4 Correct 45 ms 22564 KB Output is correct
5 Correct 48 ms 24568 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 4 ms 9684 KB Output is correct
10 Correct 17 ms 19028 KB Output is correct
11 Correct 17 ms 19028 KB Output is correct
12 Correct 41 ms 22640 KB Output is correct
13 Correct 49 ms 24584 KB Output is correct
14 Correct 41 ms 22812 KB Output is correct
15 Correct 46 ms 24104 KB Output is correct
16 Correct 42 ms 22636 KB Output is correct
17 Correct 49 ms 24136 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 19108 KB Output is correct
2 Correct 17 ms 18984 KB Output is correct
3 Correct 50 ms 21012 KB Output is correct
4 Correct 38 ms 21076 KB Output is correct
5 Correct 110 ms 24588 KB Output is correct
6 Correct 113 ms 24580 KB Output is correct
7 Correct 111 ms 24572 KB Output is correct
8 Correct 87 ms 24524 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9708 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9764 KB Output is correct
10 Correct 7 ms 9864 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9684 KB Output is correct
14 Correct 6 ms 9812 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9708 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9764 KB Output is correct
10 Correct 7 ms 9864 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9684 KB Output is correct
14 Correct 6 ms 9812 KB Output is correct
15 Correct 6 ms 9712 KB Output is correct
16 Correct 6 ms 9852 KB Output is correct
17 Correct 19 ms 13200 KB Output is correct
18 Correct 19 ms 14420 KB Output is correct
19 Correct 18 ms 14200 KB Output is correct
20 Correct 23 ms 14212 KB Output is correct
21 Correct 19 ms 14076 KB Output is correct
22 Correct 33 ms 18516 KB Output is correct
23 Correct 10 ms 10452 KB Output is correct
24 Correct 15 ms 12232 KB Output is correct
25 Correct 5 ms 9812 KB Output is correct
26 Correct 8 ms 10432 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 4 ms 9684 KB Output is correct
3 Correct 4 ms 9684 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9708 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9764 KB Output is correct
10 Correct 7 ms 9864 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 5 ms 9812 KB Output is correct
13 Correct 5 ms 9684 KB Output is correct
14 Correct 6 ms 9812 KB Output is correct
15 Correct 6 ms 9712 KB Output is correct
16 Correct 6 ms 9852 KB Output is correct
17 Correct 19 ms 13200 KB Output is correct
18 Correct 19 ms 14420 KB Output is correct
19 Correct 18 ms 14200 KB Output is correct
20 Correct 23 ms 14212 KB Output is correct
21 Correct 19 ms 14076 KB Output is correct
22 Correct 33 ms 18516 KB Output is correct
23 Correct 10 ms 10452 KB Output is correct
24 Correct 15 ms 12232 KB Output is correct
25 Correct 5 ms 9812 KB Output is correct
26 Correct 8 ms 10432 KB Output is correct
27 Correct 5 ms 10068 KB Output is correct
28 Correct 78 ms 31044 KB Output is correct
29 Correct 109 ms 37300 KB Output is correct
30 Correct 126 ms 35576 KB Output is correct
31 Correct 126 ms 35612 KB Output is correct
32 Correct 118 ms 40908 KB Output is correct
33 Correct 117 ms 35608 KB Output is correct
34 Correct 114 ms 35624 KB Output is correct
35 Correct 47 ms 20640 KB Output is correct
36 Correct 114 ms 38956 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 19108 KB Output is correct
2 Correct 17 ms 18984 KB Output is correct
3 Correct 50 ms 21012 KB Output is correct
4 Correct 38 ms 21076 KB Output is correct
5 Correct 110 ms 24588 KB Output is correct
6 Correct 113 ms 24580 KB Output is correct
7 Correct 111 ms 24572 KB Output is correct
8 Correct 87 ms 24524 KB Output is correct
9 Correct 109 ms 24580 KB Output is correct
10 Correct 64 ms 21968 KB Output is correct
11 Correct 200 ms 34260 KB Output is correct
12 Correct 4 ms 9684 KB Output is correct
13 Correct 4 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 4 ms 9684 KB Output is correct
16 Correct 4 ms 9684 KB Output is correct
17 Correct 4 ms 9684 KB Output is correct
18 Correct 25 ms 19016 KB Output is correct
19 Correct 26 ms 19016 KB Output is correct
20 Correct 21 ms 19028 KB Output is correct
21 Correct 17 ms 19084 KB Output is correct
22 Correct 89 ms 25108 KB Output is correct
23 Correct 233 ms 37764 KB Output is correct
24 Correct 173 ms 38312 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 22516 KB Output is correct
2 Correct 49 ms 24536 KB Output is correct
3 Correct 17 ms 19028 KB Output is correct
4 Correct 18 ms 19040 KB Output is correct
5 Correct 115 ms 35512 KB Output is correct
6 Correct 206 ms 39092 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 68 ms 27020 KB Output is correct
9 Correct 83 ms 30068 KB Output is correct
10 Correct 45 ms 22564 KB Output is correct
11 Correct 48 ms 24568 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 4 ms 9684 KB Output is correct
14 Correct 4 ms 9684 KB Output is correct
15 Correct 4 ms 9684 KB Output is correct
16 Correct 17 ms 19028 KB Output is correct
17 Correct 17 ms 19028 KB Output is correct
18 Correct 41 ms 22640 KB Output is correct
19 Correct 49 ms 24584 KB Output is correct
20 Correct 41 ms 22812 KB Output is correct
21 Correct 46 ms 24104 KB Output is correct
22 Correct 42 ms 22636 KB Output is correct
23 Correct 49 ms 24136 KB Output is correct
24 Correct 17 ms 19108 KB Output is correct
25 Correct 17 ms 18984 KB Output is correct
26 Correct 50 ms 21012 KB Output is correct
27 Correct 38 ms 21076 KB Output is correct
28 Correct 110 ms 24588 KB Output is correct
29 Correct 113 ms 24580 KB Output is correct
30 Correct 111 ms 24572 KB Output is correct
31 Correct 87 ms 24524 KB Output is correct
32 Correct 4 ms 9684 KB Output is correct
33 Correct 4 ms 9684 KB Output is correct
34 Correct 4 ms 9684 KB Output is correct
35 Correct 4 ms 9684 KB Output is correct
36 Correct 4 ms 9684 KB Output is correct
37 Correct 4 ms 9708 KB Output is correct
38 Correct 4 ms 9684 KB Output is correct
39 Correct 4 ms 9684 KB Output is correct
40 Correct 5 ms 9764 KB Output is correct
41 Correct 7 ms 9864 KB Output is correct
42 Correct 6 ms 9684 KB Output is correct
43 Correct 5 ms 9812 KB Output is correct
44 Correct 5 ms 9684 KB Output is correct
45 Correct 6 ms 9812 KB Output is correct
46 Correct 6 ms 9712 KB Output is correct
47 Correct 6 ms 9852 KB Output is correct
48 Correct 19 ms 13200 KB Output is correct
49 Correct 19 ms 14420 KB Output is correct
50 Correct 18 ms 14200 KB Output is correct
51 Correct 23 ms 14212 KB Output is correct
52 Correct 19 ms 14076 KB Output is correct
53 Correct 33 ms 18516 KB Output is correct
54 Correct 10 ms 10452 KB Output is correct
55 Correct 15 ms 12232 KB Output is correct
56 Correct 5 ms 9812 KB Output is correct
57 Correct 8 ms 10432 KB Output is correct
58 Correct 5 ms 10068 KB Output is correct
59 Correct 78 ms 31044 KB Output is correct
60 Correct 109 ms 37300 KB Output is correct
61 Correct 126 ms 35576 KB Output is correct
62 Correct 126 ms 35612 KB Output is correct
63 Correct 118 ms 40908 KB Output is correct
64 Correct 117 ms 35608 KB Output is correct
65 Correct 114 ms 35624 KB Output is correct
66 Correct 47 ms 20640 KB Output is correct
67 Correct 114 ms 38956 KB Output is correct
68 Correct 109 ms 24580 KB Output is correct
69 Correct 64 ms 21968 KB Output is correct
70 Correct 200 ms 34260 KB Output is correct
71 Correct 4 ms 9684 KB Output is correct
72 Correct 4 ms 9684 KB Output is correct
73 Correct 5 ms 9684 KB Output is correct
74 Correct 4 ms 9684 KB Output is correct
75 Correct 4 ms 9684 KB Output is correct
76 Correct 4 ms 9684 KB Output is correct
77 Correct 25 ms 19016 KB Output is correct
78 Correct 26 ms 19016 KB Output is correct
79 Correct 21 ms 19028 KB Output is correct
80 Correct 17 ms 19084 KB Output is correct
81 Correct 89 ms 25108 KB Output is correct
82 Correct 233 ms 37764 KB Output is correct
83 Correct 173 ms 38312 KB Output is correct
84 Correct 143 ms 41884 KB Output is correct
85 Correct 126 ms 42268 KB Output is correct
86 Correct 274 ms 45004 KB Output is correct
87 Correct 241 ms 45728 KB Output is correct
88 Correct 6 ms 9712 KB Output is correct
89 Correct 257 ms 45788 KB Output is correct
90 Correct 181 ms 44240 KB Output is correct
91 Correct 234 ms 44508 KB Output is correct