답안 #667032

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
667032	2022-11-30T08:17:34 Z	tatyam	메기 농장 (IOI22_fish)	C++17	100 / 100	260 ms	23208 KB

fish

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void chmax(ll& a, ll b){ if(a < b) a = b; }

// range chmax・1 点取得 で O(M log N)
struct SegTree {
    ll n;
    vector<ll> seg;
    SegTree(ll n): n(n), seg(n * 2) {}
    void range_chmax(ll l, ll r, ll x) {
        l += n;
        r += n;
        while(l < r){
            if(l & 1) chmax(seg[l++], x);
            if(r & 1) chmax(seg[--r], x);
            l >>= 1; r >>= 1;
        }
    }
    ll operator[](ll i) const {
        i += n;
        ll x = 0;
        do chmax(x, seg[i]); while(i >>= 1);
        return x;
    }
};
ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    vector fish(N, vector<pair<ll, ll>>{});
    for (ll i = 0; i < M; i++) {
        fish[X[i]].emplace_back(Y[i], W[i]);
    }
    for (auto& v : fish) sort(v.begin(), v.end());
    SegTree up(N + 1), down(N + 1);
    ll zero = 0;
    for(ll x = 0; x + 1 < N; x++) {
        for(auto [y, w] : fish[x]) {
            up.range_chmax(y + 1, N + 1, up[y] + w);
        }
        reverse(fish[x + 1].begin(), fish[x + 1].end());
        for(auto [y, w] : fish[x + 1]) {
            down.range_chmax(0, y + 1, down[y + 1] + w);
        }
        reverse(fish[x + 1].begin(), fish[x + 1].end());
        const ll zero_ = exchange(zero, down[0]);
        down.range_chmax(0, N + 1, max(up[N], zero_));
        up.range_chmax(0, N + 1, zero_);
    }
    return max({zero, down[0], up[N]});
}

Subtask #1
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	44 ms	8396 KB	Output is correct
2	Correct	58 ms	9788 KB	Output is correct
3	Correct	12 ms	5716 KB	Output is correct
4	Correct	12 ms	5716 KB	Output is correct
5	Correct	164 ms	17988 KB	Output is correct
6	Correct	207 ms	20428 KB	Output is correct

Subtask #2
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	86 ms	11964 KB	Output is correct
3	Correct	111 ms	13764 KB	Output is correct
4	Correct	44 ms	8400 KB	Output is correct
5	Correct	54 ms	9768 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	17 ms	5716 KB	Output is correct
11	Correct	13 ms	5716 KB	Output is correct
12	Correct	51 ms	8528 KB	Output is correct
13	Correct	62 ms	9764 KB	Output is correct
14	Correct	49 ms	8556 KB	Output is correct
15	Correct	60 ms	9528 KB	Output is correct
16	Correct	47 ms	8620 KB	Output is correct
17	Correct	53 ms	9404 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	5808 KB	Output is correct
2	Correct	13 ms	5716 KB	Output is correct
3	Correct	38 ms	8180 KB	Output is correct
4	Correct	28 ms	7864 KB	Output is correct
5	Correct	54 ms	11388 KB	Output is correct
6	Correct	53 ms	11340 KB	Output is correct
7	Correct	54 ms	11380 KB	Output is correct
8	Correct	63 ms	11368 KB	Output is correct

Subtask #4
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	19 ms	2256 KB	Output is correct
18	Correct	18 ms	2884 KB	Output is correct
19	Correct	18 ms	2752 KB	Output is correct
20	Correct	17 ms	2760 KB	Output is correct
21	Correct	18 ms	2672 KB	Output is correct
22	Correct	37 ms	5056 KB	Output is correct
23	Correct	4 ms	724 KB	Output is correct
24	Correct	12 ms	1620 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	4 ms	724 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	19 ms	2256 KB	Output is correct
18	Correct	18 ms	2884 KB	Output is correct
19	Correct	18 ms	2752 KB	Output is correct
20	Correct	17 ms	2760 KB	Output is correct
21	Correct	18 ms	2672 KB	Output is correct
22	Correct	37 ms	5056 KB	Output is correct
23	Correct	4 ms	724 KB	Output is correct
24	Correct	12 ms	1620 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	4 ms	724 KB	Output is correct
27	Correct	2 ms	596 KB	Output is correct
28	Correct	91 ms	13704 KB	Output is correct
29	Correct	135 ms	17268 KB	Output is correct
30	Correct	136 ms	16716 KB	Output is correct
31	Correct	136 ms	16720 KB	Output is correct
32	Correct	125 ms	18508 KB	Output is correct
33	Correct	147 ms	16684 KB	Output is correct
34	Correct	157 ms	16776 KB	Output is correct
35	Correct	49 ms	8268 KB	Output is correct
36	Correct	140 ms	18656 KB	Output is correct

Subtask #7
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	5808 KB	Output is correct
2	Correct	13 ms	5716 KB	Output is correct
3	Correct	38 ms	8180 KB	Output is correct
4	Correct	28 ms	7864 KB	Output is correct
5	Correct	54 ms	11388 KB	Output is correct
6	Correct	53 ms	11340 KB	Output is correct
7	Correct	54 ms	11380 KB	Output is correct
8	Correct	63 ms	11368 KB	Output is correct
9	Correct	81 ms	11392 KB	Output is correct
10	Correct	52 ms	8236 KB	Output is correct
11	Correct	104 ms	15824 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	300 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	15 ms	5716 KB	Output is correct
19	Correct	12 ms	5684 KB	Output is correct
20	Correct	12 ms	5716 KB	Output is correct
21	Correct	12 ms	5796 KB	Output is correct
22	Correct	85 ms	10952 KB	Output is correct
23	Correct	121 ms	18232 KB	Output is correct
24	Correct	137 ms	18240 KB	Output is correct

Subtask #8
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	44 ms	8396 KB	Output is correct
2	Correct	58 ms	9788 KB	Output is correct
3	Correct	12 ms	5716 KB	Output is correct
4	Correct	12 ms	5716 KB	Output is correct
5	Correct	164 ms	17988 KB	Output is correct
6	Correct	207 ms	20428 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	86 ms	11964 KB	Output is correct
9	Correct	111 ms	13764 KB	Output is correct
10	Correct	44 ms	8400 KB	Output is correct
11	Correct	54 ms	9768 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	17 ms	5716 KB	Output is correct
17	Correct	13 ms	5716 KB	Output is correct
18	Correct	51 ms	8528 KB	Output is correct
19	Correct	62 ms	9764 KB	Output is correct
20	Correct	49 ms	8556 KB	Output is correct
21	Correct	60 ms	9528 KB	Output is correct
22	Correct	47 ms	8620 KB	Output is correct
23	Correct	53 ms	9404 KB	Output is correct
24	Correct	16 ms	5808 KB	Output is correct
25	Correct	13 ms	5716 KB	Output is correct
26	Correct	38 ms	8180 KB	Output is correct
27	Correct	28 ms	7864 KB	Output is correct
28	Correct	54 ms	11388 KB	Output is correct
29	Correct	53 ms	11340 KB	Output is correct
30	Correct	54 ms	11380 KB	Output is correct
31	Correct	63 ms	11368 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	1 ms	212 KB	Output is correct
41	Correct	1 ms	340 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	0 ms	212 KB	Output is correct
47	Correct	1 ms	340 KB	Output is correct
48	Correct	19 ms	2256 KB	Output is correct
49	Correct	18 ms	2884 KB	Output is correct
50	Correct	18 ms	2752 KB	Output is correct
51	Correct	17 ms	2760 KB	Output is correct
52	Correct	18 ms	2672 KB	Output is correct
53	Correct	37 ms	5056 KB	Output is correct
54	Correct	4 ms	724 KB	Output is correct
55	Correct	12 ms	1620 KB	Output is correct
56	Correct	1 ms	340 KB	Output is correct
57	Correct	4 ms	724 KB	Output is correct
58	Correct	2 ms	596 KB	Output is correct
59	Correct	91 ms	13704 KB	Output is correct
60	Correct	135 ms	17268 KB	Output is correct
61	Correct	136 ms	16716 KB	Output is correct
62	Correct	136 ms	16720 KB	Output is correct
63	Correct	125 ms	18508 KB	Output is correct
64	Correct	147 ms	16684 KB	Output is correct
65	Correct	157 ms	16776 KB	Output is correct
66	Correct	49 ms	8268 KB	Output is correct
67	Correct	140 ms	18656 KB	Output is correct
68	Correct	81 ms	11392 KB	Output is correct
69	Correct	52 ms	8236 KB	Output is correct
70	Correct	104 ms	15824 KB	Output is correct
71	Correct	1 ms	212 KB	Output is correct
72	Correct	1 ms	300 KB	Output is correct
73	Correct	0 ms	212 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	0 ms	212 KB	Output is correct
76	Correct	1 ms	212 KB	Output is correct
77	Correct	15 ms	5716 KB	Output is correct
78	Correct	12 ms	5684 KB	Output is correct
79	Correct	12 ms	5716 KB	Output is correct
80	Correct	12 ms	5796 KB	Output is correct
81	Correct	85 ms	10952 KB	Output is correct
82	Correct	121 ms	18232 KB	Output is correct
83	Correct	137 ms	18240 KB	Output is correct
84	Correct	167 ms	20296 KB	Output is correct
85	Correct	165 ms	20988 KB	Output is correct
86	Correct	260 ms	22476 KB	Output is correct
87	Correct	230 ms	23208 KB	Output is correct
88	Correct	1 ms	212 KB	Output is correct
89	Correct	234 ms	23208 KB	Output is correct
90	Correct	166 ms	23132 KB	Output is correct
91	Correct	145 ms	22988 KB	Output is correct

답안 #667032

Compilation message