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Submission #1082618

# Submission time Handle Problem Language Result Execution time Memory
1082618 2024-08-31T18:18:36 Z vjudge1 Catfish Farm (IOI22_fish) C++17
100 / 100
 373 ms 123064 KB 
#include "fish.h"
#include <bits/stdc++.h>
#define ent '\n'

using namespace std;
typedef long long ll;
const int maxn = 1e5 + 12;

vector<int> s[maxn];
vector<ll> dp[maxn], dpt[maxn], d[maxn];
vector<ll> pref[maxn], mx[maxn], suff[maxn];
vector<ll> a[maxn], mval[maxn];

long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
    ll ans = 0;
    for(int i=0;i<m;i++){
        x[i]++, y[i]++;
        for(int d=-1;d<=1;d++){
            s[x[i] + d].push_back(y[i]);
        }
    }
    for(int i=0;i<=n;i++){
        s[i].push_back(0);
        sort(s[i].begin(), s[i].end());
        s[i].resize(unique(s[i].begin(), s[i].end()) - s[i].begin());
        dp[i] = d[i] = pref[i] = mx[i] = suff[i] = a[i] = mval[i] = vector<ll> ((int)s[i].size(), 0);
        dpt[i] = {0};
    }

    for(int i=0;i<m;i++){
        int j = lower_bound(s[x[i]].begin(), s[x[i]].end(), y[i]) - s[x[i]].begin();
        a[x[i]][j] += w[i];
    }
    for(int i=1;i<=n;i++){
        ll sum = 0;
        for(int j=0;j<s[i].size();j++){
            sum += a[i][j];
            pref[i][j] = sum;
        }
    }

    for(int i=1;i<=n;i++){
        dpt[i] = vector<ll> (s[i-1].size(), 0);
        ll val = -1e18;

        for(int j=0;j<(int)s[i].size();j++){
            int x = s[i][j];
            int it = upper_bound(s[i-1].begin(), s[i-1].end(), x) - s[i-1].begin();
            it--;

            dp[i][j] = max(mx[i-1][it] + pref[i-1][it], mval[i-1][it]);
            d[i][j] = max(dp[i][j], suff[i-1][it] - pref[i][j]);
            val = max(val, d[i][j]);
            mval[i][j] = val;
            ans = max(ans, d[i][j]);
        }

        for(int j=0;j<(int)s[i-1].size();j++){
            int x = s[i-1][j];
            int it = upper_bound(s[i].begin(), s[i].end(), x) - s[i].begin();
            it--;
            dpt[i][j] = d[i-1][j] + pref[i][it];
        }

        val = -1e18;

        for(int j=0;j<(int)s[i].size();j++){
            int x = s[i][j];
            int it = upper_bound(s[i-1].begin(), s[i-1].end(), x) - s[i-1].begin();
            it--;

            val = max(val, max(dp[i][j], dpt[i][it]) - pref[i][j]);
            mx[i][j] = val;
        }

        val = -1e18;

        if(i < n){
            for(int j=(int)s[i].size() - 1;j>=0;j--){
                int x = s[i][j];
                int it = upper_bound(s[i+1].begin(), s[i+1].end(), x) - s[i+1].begin();
                it--;

                val = max(val, d[i][j] + pref[i+1][it]);
                suff[i][j] = val;
            }
        }
    }
    return ans;
}

Compilation message

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:36:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for(int j=0;j<s[i].size();j++){
      |                     ~^~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 66248 KB Output is correct
2 Correct 135 ms 73668 KB Output is correct
3 Correct 53 ms 49516 KB Output is correct
4 Correct 63 ms 49744 KB Output is correct
5 Correct 359 ms 123064 KB Output is correct
6 Correct 297 ms 117332 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 21340 KB Output is correct
2 Correct 187 ms 76596 KB Output is correct
3 Correct 235 ms 85304 KB Output is correct
4 Correct 127 ms 66316 KB Output is correct
5 Correct 128 ms 73636 KB Output is correct
6 Correct 9 ms 21340 KB Output is correct
7 Correct 8 ms 21340 KB Output is correct
8 Correct 5 ms 21372 KB Output is correct
9 Correct 7 ms 21340 KB Output is correct
10 Correct 57 ms 49636 KB Output is correct
11 Correct 53 ms 49492 KB Output is correct
12 Correct 119 ms 66664 KB Output is correct
13 Correct 166 ms 73648 KB Output is correct
14 Correct 137 ms 66368 KB Output is correct
15 Correct 129 ms 66368 KB Output is correct
16 Correct 135 ms 66452 KB Output is correct
17 Correct 186 ms 71244 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 49492 KB Output is correct
2 Correct 75 ms 49628 KB Output is correct
3 Correct 59 ms 48980 KB Output is correct
4 Correct 93 ms 51024 KB Output is correct
5 Correct 83 ms 53588 KB Output is correct
6 Correct 85 ms 52908 KB Output is correct
7 Correct 101 ms 53584 KB Output is correct
8 Correct 95 ms 53588 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 21336 KB Output is correct
2 Correct 9 ms 21424 KB Output is correct
3 Correct 9 ms 21340 KB Output is correct
4 Correct 9 ms 21336 KB Output is correct
5 Correct 6 ms 21340 KB Output is correct
6 Correct 7 ms 21340 KB Output is correct
7 Correct 8 ms 21340 KB Output is correct
8 Correct 5 ms 21340 KB Output is correct
9 Correct 8 ms 21424 KB Output is correct
10 Correct 11 ms 21852 KB Output is correct
11 Correct 10 ms 21596 KB Output is correct
12 Correct 14 ms 21596 KB Output is correct
13 Correct 9 ms 21596 KB Output is correct
14 Correct 10 ms 21592 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 21336 KB Output is correct
2 Correct 9 ms 21424 KB Output is correct
3 Correct 9 ms 21340 KB Output is correct
4 Correct 9 ms 21336 KB Output is correct
5 Correct 6 ms 21340 KB Output is correct
6 Correct 7 ms 21340 KB Output is correct
7 Correct 8 ms 21340 KB Output is correct
8 Correct 5 ms 21340 KB Output is correct
9 Correct 8 ms 21424 KB Output is correct
10 Correct 11 ms 21852 KB Output is correct
11 Correct 10 ms 21596 KB Output is correct
12 Correct 14 ms 21596 KB Output is correct
13 Correct 9 ms 21596 KB Output is correct
14 Correct 10 ms 21592 KB Output is correct
15 Correct 9 ms 21596 KB Output is correct
16 Correct 15 ms 21904 KB Output is correct
17 Correct 32 ms 27984 KB Output is correct
18 Correct 30 ms 27236 KB Output is correct
19 Correct 46 ms 27224 KB Output is correct
20 Correct 28 ms 26972 KB Output is correct
21 Correct 29 ms 26716 KB Output is correct
22 Correct 65 ms 32084 KB Output is correct
23 Correct 19 ms 23644 KB Output is correct
24 Correct 27 ms 27256 KB Output is correct
25 Correct 10 ms 21848 KB Output is correct
26 Correct 14 ms 23380 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 21336 KB Output is correct
2 Correct 9 ms 21424 KB Output is correct
3 Correct 9 ms 21340 KB Output is correct
4 Correct 9 ms 21336 KB Output is correct
5 Correct 6 ms 21340 KB Output is correct
6 Correct 7 ms 21340 KB Output is correct
7 Correct 8 ms 21340 KB Output is correct
8 Correct 5 ms 21340 KB Output is correct
9 Correct 8 ms 21424 KB Output is correct
10 Correct 11 ms 21852 KB Output is correct
11 Correct 10 ms 21596 KB Output is correct
12 Correct 14 ms 21596 KB Output is correct
13 Correct 9 ms 21596 KB Output is correct
14 Correct 10 ms 21592 KB Output is correct
15 Correct 9 ms 21596 KB Output is correct
16 Correct 15 ms 21904 KB Output is correct
17 Correct 32 ms 27984 KB Output is correct
18 Correct 30 ms 27236 KB Output is correct
19 Correct 46 ms 27224 KB Output is correct
20 Correct 28 ms 26972 KB Output is correct
21 Correct 29 ms 26716 KB Output is correct
22 Correct 65 ms 32084 KB Output is correct
23 Correct 19 ms 23644 KB Output is correct
24 Correct 27 ms 27256 KB Output is correct
25 Correct 10 ms 21848 KB Output is correct
26 Correct 14 ms 23380 KB Output is correct
27 Correct 16 ms 22876 KB Output is correct
28 Correct 114 ms 50596 KB Output is correct
29 Correct 231 ms 70012 KB Output is correct
30 Correct 234 ms 94288 KB Output is correct
31 Correct 228 ms 93952 KB Output is correct
32 Correct 161 ms 57188 KB Output is correct
33 Correct 255 ms 95568 KB Output is correct
34 Correct 248 ms 95568 KB Output is correct
35 Correct 88 ms 44544 KB Output is correct
36 Correct 223 ms 85316 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 49492 KB Output is correct
2 Correct 75 ms 49628 KB Output is correct
3 Correct 59 ms 48980 KB Output is correct
4 Correct 93 ms 51024 KB Output is correct
5 Correct 83 ms 53588 KB Output is correct
6 Correct 85 ms 52908 KB Output is correct
7 Correct 101 ms 53584 KB Output is correct
8 Correct 95 ms 53588 KB Output is correct
9 Correct 110 ms 68948 KB Output is correct
10 Correct 62 ms 40528 KB Output is correct
11 Correct 155 ms 59744 KB Output is correct
12 Correct 11 ms 21336 KB Output is correct
13 Correct 7 ms 21592 KB Output is correct
14 Correct 10 ms 21572 KB Output is correct
15 Correct 7 ms 21340 KB Output is correct
16 Correct 9 ms 21340 KB Output is correct
17 Correct 6 ms 21340 KB Output is correct
18 Correct 54 ms 49488 KB Output is correct
19 Correct 50 ms 49536 KB Output is correct
20 Correct 56 ms 49692 KB Output is correct
21 Correct 48 ms 49572 KB Output is correct
22 Correct 142 ms 66072 KB Output is correct
23 Correct 175 ms 77412 KB Output is correct
24 Correct 192 ms 79068 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 66248 KB Output is correct
2 Correct 135 ms 73668 KB Output is correct
3 Correct 53 ms 49516 KB Output is correct
4 Correct 63 ms 49744 KB Output is correct
5 Correct 359 ms 123064 KB Output is correct
6 Correct 297 ms 117332 KB Output is correct
7 Correct 6 ms 21340 KB Output is correct
8 Correct 187 ms 76596 KB Output is correct
9 Correct 235 ms 85304 KB Output is correct
10 Correct 127 ms 66316 KB Output is correct
11 Correct 128 ms 73636 KB Output is correct
12 Correct 9 ms 21340 KB Output is correct
13 Correct 8 ms 21340 KB Output is correct
14 Correct 5 ms 21372 KB Output is correct
15 Correct 7 ms 21340 KB Output is correct
16 Correct 57 ms 49636 KB Output is correct
17 Correct 53 ms 49492 KB Output is correct
18 Correct 119 ms 66664 KB Output is correct
19 Correct 166 ms 73648 KB Output is correct
20 Correct 137 ms 66368 KB Output is correct
21 Correct 129 ms 66368 KB Output is correct
22 Correct 135 ms 66452 KB Output is correct
23 Correct 186 ms 71244 KB Output is correct
24 Correct 70 ms 49492 KB Output is correct
25 Correct 75 ms 49628 KB Output is correct
26 Correct 59 ms 48980 KB Output is correct
27 Correct 93 ms 51024 KB Output is correct
28 Correct 83 ms 53588 KB Output is correct
29 Correct 85 ms 52908 KB Output is correct
30 Correct 101 ms 53584 KB Output is correct
31 Correct 95 ms 53588 KB Output is correct
32 Correct 7 ms 21336 KB Output is correct
33 Correct 9 ms 21424 KB Output is correct
34 Correct 9 ms 21340 KB Output is correct
35 Correct 9 ms 21336 KB Output is correct
36 Correct 6 ms 21340 KB Output is correct
37 Correct 7 ms 21340 KB Output is correct
38 Correct 8 ms 21340 KB Output is correct
39 Correct 5 ms 21340 KB Output is correct
40 Correct 8 ms 21424 KB Output is correct
41 Correct 11 ms 21852 KB Output is correct
42 Correct 10 ms 21596 KB Output is correct
43 Correct 14 ms 21596 KB Output is correct
44 Correct 9 ms 21596 KB Output is correct
45 Correct 10 ms 21592 KB Output is correct
46 Correct 9 ms 21596 KB Output is correct
47 Correct 15 ms 21904 KB Output is correct
48 Correct 32 ms 27984 KB Output is correct
49 Correct 30 ms 27236 KB Output is correct
50 Correct 46 ms 27224 KB Output is correct
51 Correct 28 ms 26972 KB Output is correct
52 Correct 29 ms 26716 KB Output is correct
53 Correct 65 ms 32084 KB Output is correct
54 Correct 19 ms 23644 KB Output is correct
55 Correct 27 ms 27256 KB Output is correct
56 Correct 10 ms 21848 KB Output is correct
57 Correct 14 ms 23380 KB Output is correct
58 Correct 16 ms 22876 KB Output is correct
59 Correct 114 ms 50596 KB Output is correct
60 Correct 231 ms 70012 KB Output is correct
61 Correct 234 ms 94288 KB Output is correct
62 Correct 228 ms 93952 KB Output is correct
63 Correct 161 ms 57188 KB Output is correct
64 Correct 255 ms 95568 KB Output is correct
65 Correct 248 ms 95568 KB Output is correct
66 Correct 88 ms 44544 KB Output is correct
67 Correct 223 ms 85316 KB Output is correct
68 Correct 110 ms 68948 KB Output is correct
69 Correct 62 ms 40528 KB Output is correct
70 Correct 155 ms 59744 KB Output is correct
71 Correct 11 ms 21336 KB Output is correct
72 Correct 7 ms 21592 KB Output is correct
73 Correct 10 ms 21572 KB Output is correct
74 Correct 7 ms 21340 KB Output is correct
75 Correct 9 ms 21340 KB Output is correct
76 Correct 6 ms 21340 KB Output is correct
77 Correct 54 ms 49488 KB Output is correct
78 Correct 50 ms 49536 KB Output is correct
79 Correct 56 ms 49692 KB Output is correct
80 Correct 48 ms 49572 KB Output is correct
81 Correct 142 ms 66072 KB Output is correct
82 Correct 175 ms 77412 KB Output is correct
83 Correct 192 ms 79068 KB Output is correct
84 Correct 362 ms 113076 KB Output is correct
85 Correct 373 ms 114772 KB Output is correct
86 Correct 304 ms 114408 KB Output is correct
87 Correct 299 ms 116820 KB Output is correct
88 Correct 11 ms 21340 KB Output is correct
89 Correct 298 ms 116840 KB Output is correct
90 Correct 267 ms 105080 KB Output is correct
91 Correct 226 ms 89428 KB Output is correct