oj.uz

Submission #1053084

# Submission time Handle Problem Language Result Execution time Memory
1053084 2024-08-11T08:34:17 Z hirayuu_oj Catfish Farm (IOI22_fish) C++17
100 / 100
 197 ms 68948 KB 
#include "fish.h"

#include <vector>
#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0; i<(n); i++)
#define rrep(i,n) for(int i=(n)-1; i>=0; i--)
#define rng(i,l,r) for(int i=(l); i<(r); i++)
#define all(x) x.begin(),x.end()
using ll=long long;
constexpr ll INF=1LL<<60;

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {
    vector<vector<pair<int,ll>>> fish(N);
    rep(i,M) {
        fish[X[i]].emplace_back(Y[i],W[i]);
    }
    rep(i,N) {
        fish[i].emplace_back(N,0);
        sort(all(fish[i]));
    }
    vector<vector<int>> pos(N);
    vector<vector<ll>> cum_lf(N);
    vector<vector<ll>> cum_ri(N);
    vector<vector<ll>> cum_hr(N);
    vector<vector<ll>> updp(N);
    vector<vector<ll>> dndp(N);
    vector<int> sz(N);
    rep(i,N) {
        sz[i]=fish[i].size();
        updp[i].resize(sz[i],-INF);
        dndp[i].resize(sz[i],-INF);
        if(i!=0) {
            ll cum=0;
            int cnt=0;
            for(auto &[y,_]:fish[i]){
                while(fish[i-1][cnt].first<y){
                    cum+=fish[i-1][cnt].second;
                    cnt++;
                }
                cum_lf[i].emplace_back(cum);
            }
        }
        if(i!=N-1){
            ll cum=0;
            int cnt=0;
            for(auto &[y,_]:fish[i]){
                while(fish[i+1][cnt].first<y){
                    cum+=fish[i+1][cnt].second;
                    cnt++;
                }
                cum_ri[i].emplace_back(cum);
            }
        }
        cum_hr[i].emplace_back(0);
        for(auto &[_,w]:fish[i]) {
            cum_hr[i].emplace_back(cum_hr[i].back()+w);
        }
    }
    rep(i,sz[0]) {
        updp[0][i]=0;
        dndp[0][i]=0;
    }
    rng(i,1,N) {
        int cnt=0;
        ll mx=-INF;
        rep(j,sz[i]) {
            while(cnt<sz[i-1]&&fish[i-1][cnt].first<=fish[i][j].first) {
                mx=max(mx,updp[i-1][cnt]-cum_hr[i-1][cnt]);
                cnt++;
            }
            updp[i][j]=mx+cum_lf[i][j];
        }
        cnt=sz[i-1]-1;
        mx=-INF;
        rrep(j,sz[i]) {
            while(cnt>=0&&fish[i-1][cnt].first>=fish[i][j].first) {
                mx=max(mx,dndp[i-1][cnt]+cum_ri[i-1][cnt]);
                cnt--;
            }
            dndp[i][j]=mx-cum_hr[i][j];
        }
        if(i>=2) {
            cnt=0;
            mx=-INF;
            ll mxa=-INF;
            rep(j,sz[i-2]) {
                mx=max(mx,dndp[i-2][j]);
                mxa=max(mxa,dndp[i-2][j]+cum_ri[i-2][cnt]);
            }
            rep(j,sz[i]) {
                updp[i][j]=max(updp[i][j],mxa);
                updp[i][j]=max(updp[i][j],mx+cum_lf[i][j]);
            }
        }
        rep(j,sz[i]) {
            dndp[i][j]=max(dndp[i][j],updp[i][j]);
        }
    }
    ll ans=-INF;
    for(ll i:dndp.back())ans=max(ans,i);
    return ans;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 38080 KB Output is correct
2 Correct 54 ms 42936 KB Output is correct
3 Correct 34 ms 35924 KB Output is correct
4 Correct 31 ms 35924 KB Output is correct
5 Correct 109 ms 59604 KB Output is correct
6 Correct 163 ms 62680 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 71 ms 44372 KB Output is correct
3 Correct 94 ms 50748 KB Output is correct
4 Correct 55 ms 38196 KB Output is correct
5 Correct 65 ms 43108 KB Output is correct
6 Correct 1 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 33 ms 35836 KB Output is correct
11 Correct 33 ms 35932 KB Output is correct
12 Correct 47 ms 38628 KB Output is correct
13 Correct 57 ms 43716 KB Output is correct
14 Correct 48 ms 38344 KB Output is correct
15 Correct 57 ms 42684 KB Output is correct
16 Correct 49 ms 38600 KB Output is correct
17 Correct 55 ms 42680 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 35932 KB Output is correct
2 Correct 32 ms 35932 KB Output is correct
3 Correct 59 ms 35492 KB Output is correct
4 Correct 46 ms 38036 KB Output is correct
5 Correct 69 ms 41812 KB Output is correct
6 Correct 60 ms 41812 KB Output is correct
7 Correct 67 ms 41952 KB Output is correct
8 Correct 64 ms 41984 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 600 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 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 600 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 600 KB Output is correct
17 Correct 11 ms 4832 KB Output is correct
18 Correct 11 ms 6236 KB Output is correct
19 Correct 11 ms 5980 KB Output is correct
20 Correct 11 ms 5980 KB Output is correct
21 Correct 10 ms 5980 KB Output is correct
22 Correct 20 ms 11464 KB Output is correct
23 Correct 4 ms 1416 KB Output is correct
24 Correct 8 ms 3588 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 3 ms 1372 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 600 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 600 KB Output is correct
17 Correct 11 ms 4832 KB Output is correct
18 Correct 11 ms 6236 KB Output is correct
19 Correct 11 ms 5980 KB Output is correct
20 Correct 11 ms 5980 KB Output is correct
21 Correct 10 ms 5980 KB Output is correct
22 Correct 20 ms 11464 KB Output is correct
23 Correct 4 ms 1416 KB Output is correct
24 Correct 8 ms 3588 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 3 ms 1372 KB Output is correct
27 Correct 2 ms 1628 KB Output is correct
28 Correct 84 ms 26640 KB Output is correct
29 Correct 76 ms 34076 KB Output is correct
30 Correct 90 ms 33636 KB Output is correct
31 Correct 85 ms 33616 KB Output is correct
32 Correct 74 ms 38356 KB Output is correct
33 Correct 102 ms 33624 KB Output is correct
34 Correct 101 ms 33512 KB Output is correct
35 Correct 31 ms 14596 KB Output is correct
36 Correct 80 ms 37216 KB Output is correct

Subtask #7
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 35932 KB Output is correct
2 Correct 32 ms 35932 KB Output is correct
3 Correct 59 ms 35492 KB Output is correct
4 Correct 46 ms 38036 KB Output is correct
5 Correct 69 ms 41812 KB Output is correct
6 Correct 60 ms 41812 KB Output is correct
7 Correct 67 ms 41952 KB Output is correct
8 Correct 64 ms 41984 KB Output is correct
9 Correct 69 ms 42024 KB Output is correct
10 Correct 43 ms 25300 KB Output is correct
11 Correct 96 ms 53848 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 34 ms 35932 KB Output is correct
19 Correct 31 ms 35932 KB Output is correct
20 Correct 32 ms 35840 KB Output is correct
21 Correct 31 ms 35932 KB Output is correct
22 Correct 73 ms 44668 KB Output is correct
23 Correct 136 ms 53848 KB Output is correct
24 Correct 120 ms 54612 KB Output is correct

Subtask #8
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 38080 KB Output is correct
2 Correct 54 ms 42936 KB Output is correct
3 Correct 34 ms 35924 KB Output is correct
4 Correct 31 ms 35924 KB Output is correct
5 Correct 109 ms 59604 KB Output is correct
6 Correct 163 ms 62680 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 71 ms 44372 KB Output is correct
9 Correct 94 ms 50748 KB Output is correct
10 Correct 55 ms 38196 KB Output is correct
11 Correct 65 ms 43108 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 33 ms 35836 KB Output is correct
17 Correct 33 ms 35932 KB Output is correct
18 Correct 47 ms 38628 KB Output is correct
19 Correct 57 ms 43716 KB Output is correct
20 Correct 48 ms 38344 KB Output is correct
21 Correct 57 ms 42684 KB Output is correct
22 Correct 49 ms 38600 KB Output is correct
23 Correct 55 ms 42680 KB Output is correct
24 Correct 33 ms 35932 KB Output is correct
25 Correct 32 ms 35932 KB Output is correct
26 Correct 59 ms 35492 KB Output is correct
27 Correct 46 ms 38036 KB Output is correct
28 Correct 69 ms 41812 KB Output is correct
29 Correct 60 ms 41812 KB Output is correct
30 Correct 67 ms 41952 KB Output is correct
31 Correct 64 ms 41984 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 600 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 604 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 0 ms 604 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 600 KB Output is correct
48 Correct 11 ms 4832 KB Output is correct
49 Correct 11 ms 6236 KB Output is correct
50 Correct 11 ms 5980 KB Output is correct
51 Correct 11 ms 5980 KB Output is correct
52 Correct 10 ms 5980 KB Output is correct
53 Correct 20 ms 11464 KB Output is correct
54 Correct 4 ms 1416 KB Output is correct
55 Correct 8 ms 3588 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 3 ms 1372 KB Output is correct
58 Correct 2 ms 1628 KB Output is correct
59 Correct 84 ms 26640 KB Output is correct
60 Correct 76 ms 34076 KB Output is correct
61 Correct 90 ms 33636 KB Output is correct
62 Correct 85 ms 33616 KB Output is correct
63 Correct 74 ms 38356 KB Output is correct
64 Correct 102 ms 33624 KB Output is correct
65 Correct 101 ms 33512 KB Output is correct
66 Correct 31 ms 14596 KB Output is correct
67 Correct 80 ms 37216 KB Output is correct
68 Correct 69 ms 42024 KB Output is correct
69 Correct 43 ms 25300 KB Output is correct
70 Correct 96 ms 53848 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 0 ms 348 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 1 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 34 ms 35932 KB Output is correct
78 Correct 31 ms 35932 KB Output is correct
79 Correct 32 ms 35840 KB Output is correct
80 Correct 31 ms 35932 KB Output is correct
81 Correct 73 ms 44668 KB Output is correct
82 Correct 136 ms 53848 KB Output is correct
83 Correct 120 ms 54612 KB Output is correct
84 Correct 119 ms 62412 KB Output is correct
85 Correct 110 ms 65280 KB Output is correct
86 Correct 197 ms 63060 KB Output is correct
87 Correct 160 ms 66684 KB Output is correct
88 Correct 0 ms 348 KB Output is correct
89 Correct 153 ms 66520 KB Output is correct
90 Correct 132 ms 67664 KB Output is correct
91 Correct 122 ms 68948 KB Output is correct