oj.uz

Submission #722527

# Submission time Handle Problem Language Result Execution time Memory
722527 2023-04-12T08:13:53 Z eltu0815 Catfish Farm (IOI22_fish) C++17
100 / 100
 213 ms 54468 KB 
#include "fish.h"

#include <bits/stdc++.h>
#define MAX 500005
#define INF (ll)(1e16)
using namespace std;

typedef long long ll;

int N, M;
ll up[MAX], down[MAX], sum[MAX], in[MAX], out[MAX];
vector<ll> X, Y, W;
vector<pair<int, ll> > pos[MAX];

long long max_weights(int n, int m, std::vector<int> x, std::vector<int> y, std::vector<int> w) {
    N = n, M = m; X.resize(M); Y.resize(N + M + 1); W.resize(M);
    for(ll i = 0; i < M; ++i) X[i] = x[i] + 1, Y[i] = y[i] + 1, W[i] = w[i];
    for(ll i = 0; i < M; ++i) pos[X[i]].push_back({Y[i], W[i]});
    for(ll i = 1; i <= N; ++i) pos[i].push_back({N + 1, 0});
    for(ll i = 1; i <= N; ++i) sort(pos[i].begin(), pos[i].end());
    
    ll cnt = 0;
    for(ll i = 1; i <= N; ++i) {
        sum[++cnt] = pos[i][0].second; in[i] = cnt; Y[cnt] = pos[i][0].first;
        for(ll j = 1; j < (ll)pos[i].size(); ++j) {
            ++cnt;
            sum[cnt] = sum[cnt - 1] + pos[i][j].second;
            Y[cnt] = pos[i][j].first;
        }
        out[i] = cnt;
    }
    
    for(ll i = 0; i <= N; ++i) up[i] = down[i] = -INF;
    
    up[0] = down[0] = 0; Y[0] = -1;
    for(ll x = 1; x <= N; ++x) {
        ll k = in[x - 1], mx = -INF, p = -1;
        for(ll i = in[x]; i <= out[x]; ++i) {
            while(k <= out[x - 1] && Y[k] < Y[i]) {
                mx = max(mx, up[k] - (k == in[x - 1] ? 0 : sum[k - 1]));
                p = k; ++k;
            }
            
            up[i] = max(up[i], mx + (p == -1 ? 0 : sum[p]));
        }
        
        k = out[x - 1], mx = -INF, p = out[x];
        for(ll i = out[x]; i >= in[x]; --i) {
            while(k >= in[x - 1] && Y[k] > Y[i]) {
                while(p >= in[x] && Y[k] <= Y[p]) --p;
                mx = max(mx, max(down[k], up[k]) + sum[p]);
                --k;
            }
            
            down[i] = max(down[i], mx - (i == in[x] ? 0 : sum[i - 1]));
            if(k >= in[x - 1] && Y[k] == Y[i]) down[i] = max(down[i], max(down[k], up[k]));
        }
        
        if(x < 2) continue;
        k = in[x - 2], mx = -INF, p = in[x - 1]; ll p2 = -1;
        for(ll i = in[x]; i <= out[x]; ++i) {
            while(k <= out[x - 2] && Y[k] <= Y[i]) {
                mx = max(mx, max(up[k], down[k]));
                ++k;
            }
            while(p <= out[x - 1] && Y[p] < Y[i]) p2 = p++;
            up[i] = max(up[i], mx + (p2 == -1 ? 0 : sum[p2]));
        }
        
        k = out[x - 2], mx = -INF, p = out[x - 1];
        for(ll i = out[x]; i >= in[x]; --i) {
            while(k >= in[x - 2] && Y[k] > Y[i]) {
                while(p >= in[x - 1] && Y[k] <= Y[p]) --p;
                mx = max(mx, max(up[k], down[k]) + (p == in[x - 1] - 1 ? 0 : sum[p]));
                --k;
            }
            up[i] = max(up[i], mx);
        }
    }
    
    ll ret = 0;
    for(ll i = 0; i <= N + M; ++i) ret = max(ret, max(up[i], down[i]));
    return ret;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 27412 KB Output is correct
2 Correct 58 ms 30260 KB Output is correct
3 Correct 16 ms 19856 KB Output is correct
4 Correct 16 ms 19924 KB Output is correct
5 Correct 146 ms 50524 KB Output is correct
6 Correct 205 ms 54468 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 12052 KB Output is correct
2 Correct 79 ms 35864 KB Output is correct
3 Correct 100 ms 40628 KB Output is correct
4 Correct 47 ms 27436 KB Output is correct
5 Correct 56 ms 30344 KB Output is correct
6 Correct 8 ms 12000 KB Output is correct
7 Correct 7 ms 11988 KB Output is correct
8 Correct 8 ms 12052 KB Output is correct
9 Correct 6 ms 12052 KB Output is correct
10 Correct 15 ms 19924 KB Output is correct
11 Correct 16 ms 19920 KB Output is correct
12 Correct 46 ms 27532 KB Output is correct
13 Correct 59 ms 30188 KB Output is correct
14 Correct 52 ms 27476 KB Output is correct
15 Correct 55 ms 29212 KB Output is correct
16 Correct 65 ms 27448 KB Output is correct
17 Correct 55 ms 29212 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 19924 KB Output is correct
2 Correct 16 ms 19892 KB Output is correct
3 Correct 38 ms 24836 KB Output is correct
4 Correct 34 ms 23640 KB Output is correct
5 Correct 64 ms 31008 KB Output is correct
6 Correct 60 ms 30284 KB Output is correct
7 Correct 61 ms 30880 KB Output is correct
8 Correct 72 ms 30996 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12052 KB Output is correct
2 Correct 8 ms 11988 KB Output is correct
3 Correct 10 ms 12056 KB Output is correct
4 Correct 8 ms 11988 KB Output is correct
5 Correct 9 ms 11988 KB Output is correct
6 Correct 8 ms 12052 KB Output is correct
7 Correct 8 ms 11988 KB Output is correct
8 Correct 10 ms 11988 KB Output is correct
9 Correct 9 ms 12116 KB Output is correct
10 Correct 10 ms 12372 KB Output is correct
11 Correct 9 ms 12116 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 11988 KB Output is correct
14 Correct 10 ms 12212 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12052 KB Output is correct
2 Correct 8 ms 11988 KB Output is correct
3 Correct 10 ms 12056 KB Output is correct
4 Correct 8 ms 11988 KB Output is correct
5 Correct 9 ms 11988 KB Output is correct
6 Correct 8 ms 12052 KB Output is correct
7 Correct 8 ms 11988 KB Output is correct
8 Correct 10 ms 11988 KB Output is correct
9 Correct 9 ms 12116 KB Output is correct
10 Correct 10 ms 12372 KB Output is correct
11 Correct 9 ms 12116 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 11988 KB Output is correct
14 Correct 10 ms 12212 KB Output is correct
15 Correct 6 ms 12116 KB Output is correct
16 Correct 7 ms 12328 KB Output is correct
17 Correct 24 ms 16976 KB Output is correct
18 Correct 24 ms 17436 KB Output is correct
19 Correct 26 ms 17356 KB Output is correct
20 Correct 24 ms 17368 KB Output is correct
21 Correct 25 ms 17364 KB Output is correct
22 Correct 43 ms 22684 KB Output is correct
23 Correct 11 ms 13088 KB Output is correct
24 Correct 21 ms 15392 KB Output is correct
25 Correct 8 ms 12208 KB Output is correct
26 Correct 10 ms 13012 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12052 KB Output is correct
2 Correct 8 ms 11988 KB Output is correct
3 Correct 10 ms 12056 KB Output is correct
4 Correct 8 ms 11988 KB Output is correct
5 Correct 9 ms 11988 KB Output is correct
6 Correct 8 ms 12052 KB Output is correct
7 Correct 8 ms 11988 KB Output is correct
8 Correct 10 ms 11988 KB Output is correct
9 Correct 9 ms 12116 KB Output is correct
10 Correct 10 ms 12372 KB Output is correct
11 Correct 9 ms 12116 KB Output is correct
12 Correct 8 ms 12244 KB Output is correct
13 Correct 8 ms 11988 KB Output is correct
14 Correct 10 ms 12212 KB Output is correct
15 Correct 6 ms 12116 KB Output is correct
16 Correct 7 ms 12328 KB Output is correct
17 Correct 24 ms 16976 KB Output is correct
18 Correct 24 ms 17436 KB Output is correct
19 Correct 26 ms 17356 KB Output is correct
20 Correct 24 ms 17368 KB Output is correct
21 Correct 25 ms 17364 KB Output is correct
22 Correct 43 ms 22684 KB Output is correct
23 Correct 11 ms 13088 KB Output is correct
24 Correct 21 ms 15392 KB Output is correct
25 Correct 8 ms 12208 KB Output is correct
26 Correct 10 ms 13012 KB Output is correct
27 Correct 7 ms 12632 KB Output is correct
28 Correct 93 ms 36964 KB Output is correct
29 Correct 135 ms 46140 KB Output is correct
30 Correct 136 ms 45512 KB Output is correct
31 Correct 142 ms 45640 KB Output is correct
32 Correct 125 ms 46912 KB Output is correct
33 Correct 141 ms 45628 KB Output is correct
34 Correct 144 ms 45632 KB Output is correct
35 Correct 56 ms 25440 KB Output is correct
36 Correct 142 ms 47420 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 19924 KB Output is correct
2 Correct 16 ms 19892 KB Output is correct
3 Correct 38 ms 24836 KB Output is correct
4 Correct 34 ms 23640 KB Output is correct
5 Correct 64 ms 31008 KB Output is correct
6 Correct 60 ms 30284 KB Output is correct
7 Correct 61 ms 30880 KB Output is correct
8 Correct 72 ms 30996 KB Output is correct
9 Correct 63 ms 30672 KB Output is correct
10 Correct 70 ms 27684 KB Output is correct
11 Correct 122 ms 43328 KB Output is correct
12 Correct 7 ms 12032 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 6 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 6 ms 11988 KB Output is correct
17 Correct 7 ms 11988 KB Output is correct
18 Correct 16 ms 19924 KB Output is correct
19 Correct 20 ms 19852 KB Output is correct
20 Correct 15 ms 19796 KB Output is correct
21 Correct 16 ms 19864 KB Output is correct
22 Correct 64 ms 31136 KB Output is correct
23 Correct 108 ms 43308 KB Output is correct
24 Correct 122 ms 43828 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 27412 KB Output is correct
2 Correct 58 ms 30260 KB Output is correct
3 Correct 16 ms 19856 KB Output is correct
4 Correct 16 ms 19924 KB Output is correct
5 Correct 146 ms 50524 KB Output is correct
6 Correct 205 ms 54468 KB Output is correct
7 Correct 6 ms 12052 KB Output is correct
8 Correct 79 ms 35864 KB Output is correct
9 Correct 100 ms 40628 KB Output is correct
10 Correct 47 ms 27436 KB Output is correct
11 Correct 56 ms 30344 KB Output is correct
12 Correct 8 ms 12000 KB Output is correct
13 Correct 7 ms 11988 KB Output is correct
14 Correct 8 ms 12052 KB Output is correct
15 Correct 6 ms 12052 KB Output is correct
16 Correct 15 ms 19924 KB Output is correct
17 Correct 16 ms 19920 KB Output is correct
18 Correct 46 ms 27532 KB Output is correct
19 Correct 59 ms 30188 KB Output is correct
20 Correct 52 ms 27476 KB Output is correct
21 Correct 55 ms 29212 KB Output is correct
22 Correct 65 ms 27448 KB Output is correct
23 Correct 55 ms 29212 KB Output is correct
24 Correct 16 ms 19924 KB Output is correct
25 Correct 16 ms 19892 KB Output is correct
26 Correct 38 ms 24836 KB Output is correct
27 Correct 34 ms 23640 KB Output is correct
28 Correct 64 ms 31008 KB Output is correct
29 Correct 60 ms 30284 KB Output is correct
30 Correct 61 ms 30880 KB Output is correct
31 Correct 72 ms 30996 KB Output is correct
32 Correct 9 ms 12052 KB Output is correct
33 Correct 8 ms 11988 KB Output is correct
34 Correct 10 ms 12056 KB Output is correct
35 Correct 8 ms 11988 KB Output is correct
36 Correct 9 ms 11988 KB Output is correct
37 Correct 8 ms 12052 KB Output is correct
38 Correct 8 ms 11988 KB Output is correct
39 Correct 10 ms 11988 KB Output is correct
40 Correct 9 ms 12116 KB Output is correct
41 Correct 10 ms 12372 KB Output is correct
42 Correct 9 ms 12116 KB Output is correct
43 Correct 8 ms 12244 KB Output is correct
44 Correct 8 ms 11988 KB Output is correct
45 Correct 10 ms 12212 KB Output is correct
46 Correct 6 ms 12116 KB Output is correct
47 Correct 7 ms 12328 KB Output is correct
48 Correct 24 ms 16976 KB Output is correct
49 Correct 24 ms 17436 KB Output is correct
50 Correct 26 ms 17356 KB Output is correct
51 Correct 24 ms 17368 KB Output is correct
52 Correct 25 ms 17364 KB Output is correct
53 Correct 43 ms 22684 KB Output is correct
54 Correct 11 ms 13088 KB Output is correct
55 Correct 21 ms 15392 KB Output is correct
56 Correct 8 ms 12208 KB Output is correct
57 Correct 10 ms 13012 KB Output is correct
58 Correct 7 ms 12632 KB Output is correct
59 Correct 93 ms 36964 KB Output is correct
60 Correct 135 ms 46140 KB Output is correct
61 Correct 136 ms 45512 KB Output is correct
62 Correct 142 ms 45640 KB Output is correct
63 Correct 125 ms 46912 KB Output is correct
64 Correct 141 ms 45628 KB Output is correct
65 Correct 144 ms 45632 KB Output is correct
66 Correct 56 ms 25440 KB Output is correct
67 Correct 142 ms 47420 KB Output is correct
68 Correct 63 ms 30672 KB Output is correct
69 Correct 70 ms 27684 KB Output is correct
70 Correct 122 ms 43328 KB Output is correct
71 Correct 7 ms 12032 KB Output is correct
72 Correct 6 ms 11988 KB Output is correct
73 Correct 6 ms 11988 KB Output is correct
74 Correct 6 ms 11988 KB Output is correct
75 Correct 6 ms 11988 KB Output is correct
76 Correct 7 ms 11988 KB Output is correct
77 Correct 16 ms 19924 KB Output is correct
78 Correct 20 ms 19852 KB Output is correct
79 Correct 15 ms 19796 KB Output is correct
80 Correct 16 ms 19864 KB Output is correct
81 Correct 64 ms 31136 KB Output is correct
82 Correct 108 ms 43308 KB Output is correct
83 Correct 122 ms 43828 KB Output is correct
84 Correct 154 ms 51056 KB Output is correct
85 Correct 143 ms 51320 KB Output is correct
86 Correct 188 ms 53416 KB Output is correct
87 Correct 213 ms 54460 KB Output is correct
88 Correct 7 ms 11988 KB Output is correct
89 Correct 177 ms 54332 KB Output is correct
90 Correct 169 ms 52940 KB Output is correct
91 Correct 145 ms 52940 KB Output is correct