답안 #746092

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
746092	2023-05-21T12:08:41 Z	sofapuden	메기 농장 (IOI22_fish)	C++17	100 / 100	549 ms	65144 KB

fish

#include"fish.h"
#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

const int mxN = 4e5+5;

vector<array<int,3>> v;
ll dp[mxN][2][2];
int N;
vector<vector<pair<ll,ll>>> pref;

ll pr(int x, ll y1, ll y2){ // [y1, y2[
	auto z1 = prev(lower_bound(pref[x].begin(),pref[x].end(),make_pair(y1,-1ll)));
	auto z2 = prev(lower_bound(pref[x].begin(),pref[x].end(),make_pair(y2,-1ll)));
	return z2->second - z1->second;
}

ll nxt(int x, int y){
	return lower_bound(v.begin(),v.end(),(array<int,3>){x+1,y,-1}) - v.begin();
}

ll f(int ind, int dir, int point){
	if(~dp[ind][dir][point])return dp[ind][dir][point];
	auto &d = dp[ind][dir][point] = 0;
	auto z = nxt(v[ind][0],v[ind][1]);
	if(dir == 1){
		if(ind != N - 1 && v[ind][0] == v[ind+1][0]) 
			d = max(d, f(ind+1,1,point) + point * (v[ind][0] ? pr(v[ind][0]-1, v[ind][1], v[ind+1][1]) : 0));
		if(z != N)
			d = max(d, f(z,1,1) + pr(v[ind][0], v[ind][1], v[z][1]));
	}
	else{
		if(ind != 0 && v[ind][0] == v[ind-1][0]) 
			d = max(d, f(ind-1,0,1) + v[ind-1][2]);
	}
	if(z != N && v[z][0] == v[z-1][0])
		d = max(d, f(z-1,0,1) + v[z-1][2]);
	auto z2 = nxt(v[ind][0]+1,v[ind][1]);
	auto z3 = nxt(v[ind][0]+1,-5);
	if(z3 != N)
		d = max(d, f(z3,1,0) + pr(v[ind][0]+1,-2,v[ind][1]));
	if(z2 != N)
		d = max(d, f(z2,1,1) + pr(v[ind][0]+1,-2,v[z2][1]));
	return d;
}

ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w){
	memset(dp,-1,sizeof dp);
	pref.resize(n,{{-5,0}});
	for(int i = 0; i < m; ++i)v.push_back({x[i],y[i],w[i]});
	for(int i = 0; i < n; ++i)v.push_back({i,n,0});
	sort(v.begin(),v.end());
	N = v.size();
	for(int i = 0; i < N; ++i){
		pref[v[i][0]].emplace_back(v[i][1], pref[v[i][0]].back().second + v[i][2]);
	}
	return f(0,1,1);
}

Subtask #1
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	117 ms	45116 KB	Output is correct
2	Correct	141 ms	50456 KB	Output is correct
3	Correct	73 ms	31936 KB	Output is correct
4	Correct	73 ms	32012 KB	Output is correct
5	Correct	332 ms	65144 KB	Output is correct
6	Correct	444 ms	56272 KB	Output is correct

Subtask #2
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12756 KB	Output is correct
2	Correct	217 ms	50796 KB	Output is correct
3	Correct	251 ms	57136 KB	Output is correct
4	Correct	120 ms	45216 KB	Output is correct
5	Correct	144 ms	50376 KB	Output is correct
6	Correct	5 ms	12756 KB	Output is correct
7	Correct	6 ms	12716 KB	Output is correct
8	Correct	5 ms	12756 KB	Output is correct
9	Correct	6 ms	12756 KB	Output is correct
10	Correct	70 ms	31908 KB	Output is correct
11	Correct	72 ms	31948 KB	Output is correct
12	Correct	116 ms	36296 KB	Output is correct
13	Correct	130 ms	39360 KB	Output is correct
14	Correct	122 ms	40008 KB	Output is correct
15	Correct	147 ms	43056 KB	Output is correct
16	Correct	130 ms	40124 KB	Output is correct
17	Correct	143 ms	43076 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	31904 KB	Output is correct
2	Correct	71 ms	31912 KB	Output is correct
3	Correct	136 ms	34600 KB	Output is correct
4	Correct	117 ms	35140 KB	Output is correct
5	Correct	196 ms	40268 KB	Output is correct
6	Correct	195 ms	39712 KB	Output is correct
7	Correct	192 ms	40188 KB	Output is correct
8	Correct	196 ms	40204 KB	Output is correct

Subtask #4
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12720 KB	Output is correct
2	Correct	6 ms	12740 KB	Output is correct
3	Correct	6 ms	12768 KB	Output is correct
4	Correct	5 ms	12760 KB	Output is correct
5	Correct	6 ms	12756 KB	Output is correct
6	Correct	6 ms	12720 KB	Output is correct
7	Correct	7 ms	12720 KB	Output is correct
8	Correct	6 ms	12740 KB	Output is correct
9	Correct	6 ms	12864 KB	Output is correct
10	Correct	9 ms	12964 KB	Output is correct
11	Correct	6 ms	12856 KB	Output is correct
12	Correct	7 ms	12876 KB	Output is correct
13	Correct	6 ms	12848 KB	Output is correct
14	Correct	7 ms	12956 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12720 KB	Output is correct
2	Correct	6 ms	12740 KB	Output is correct
3	Correct	6 ms	12768 KB	Output is correct
4	Correct	5 ms	12760 KB	Output is correct
5	Correct	6 ms	12756 KB	Output is correct
6	Correct	6 ms	12720 KB	Output is correct
7	Correct	7 ms	12720 KB	Output is correct
8	Correct	6 ms	12740 KB	Output is correct
9	Correct	6 ms	12864 KB	Output is correct
10	Correct	9 ms	12964 KB	Output is correct
11	Correct	6 ms	12856 KB	Output is correct
12	Correct	7 ms	12876 KB	Output is correct
13	Correct	6 ms	12848 KB	Output is correct
14	Correct	7 ms	12956 KB	Output is correct
15	Correct	7 ms	12792 KB	Output is correct
16	Correct	9 ms	13004 KB	Output is correct
17	Correct	78 ms	16088 KB	Output is correct
18	Correct	76 ms	16564 KB	Output is correct
19	Correct	69 ms	16464 KB	Output is correct
20	Correct	71 ms	16456 KB	Output is correct
21	Correct	68 ms	16328 KB	Output is correct
22	Correct	143 ms	19956 KB	Output is correct
23	Correct	17 ms	13460 KB	Output is correct
24	Correct	50 ms	14976 KB	Output is correct
25	Correct	7 ms	12884 KB	Output is correct
26	Correct	17 ms	13440 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12720 KB	Output is correct
2	Correct	6 ms	12740 KB	Output is correct
3	Correct	6 ms	12768 KB	Output is correct
4	Correct	5 ms	12760 KB	Output is correct
5	Correct	6 ms	12756 KB	Output is correct
6	Correct	6 ms	12720 KB	Output is correct
7	Correct	7 ms	12720 KB	Output is correct
8	Correct	6 ms	12740 KB	Output is correct
9	Correct	6 ms	12864 KB	Output is correct
10	Correct	9 ms	12964 KB	Output is correct
11	Correct	6 ms	12856 KB	Output is correct
12	Correct	7 ms	12876 KB	Output is correct
13	Correct	6 ms	12848 KB	Output is correct
14	Correct	7 ms	12956 KB	Output is correct
15	Correct	7 ms	12792 KB	Output is correct
16	Correct	9 ms	13004 KB	Output is correct
17	Correct	78 ms	16088 KB	Output is correct
18	Correct	76 ms	16564 KB	Output is correct
19	Correct	69 ms	16464 KB	Output is correct
20	Correct	71 ms	16456 KB	Output is correct
21	Correct	68 ms	16328 KB	Output is correct
22	Correct	143 ms	19956 KB	Output is correct
23	Correct	17 ms	13460 KB	Output is correct
24	Correct	50 ms	14976 KB	Output is correct
25	Correct	7 ms	12884 KB	Output is correct
26	Correct	17 ms	13440 KB	Output is correct
27	Correct	11 ms	13620 KB	Output is correct
28	Correct	378 ms	29192 KB	Output is correct
29	Correct	457 ms	35276 KB	Output is correct
30	Correct	431 ms	35512 KB	Output is correct
31	Correct	466 ms	35640 KB	Output is correct
32	Correct	487 ms	35696 KB	Output is correct
33	Correct	451 ms	35560 KB	Output is correct
34	Correct	450 ms	35664 KB	Output is correct
35	Correct	171 ms	22144 KB	Output is correct
36	Correct	484 ms	37168 KB	Output is correct

Subtask #7
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	31904 KB	Output is correct
2	Correct	71 ms	31912 KB	Output is correct
3	Correct	136 ms	34600 KB	Output is correct
4	Correct	117 ms	35140 KB	Output is correct
5	Correct	196 ms	40268 KB	Output is correct
6	Correct	195 ms	39712 KB	Output is correct
7	Correct	192 ms	40188 KB	Output is correct
8	Correct	196 ms	40204 KB	Output is correct
9	Correct	183 ms	39976 KB	Output is correct
10	Correct	166 ms	29216 KB	Output is correct
11	Correct	321 ms	45764 KB	Output is correct
12	Correct	5 ms	12756 KB	Output is correct
13	Correct	5 ms	12776 KB	Output is correct
14	Correct	5 ms	12756 KB	Output is correct
15	Correct	5 ms	12768 KB	Output is correct
16	Correct	5 ms	12720 KB	Output is correct
17	Correct	6 ms	12756 KB	Output is correct
18	Correct	68 ms	31904 KB	Output is correct
19	Correct	70 ms	31944 KB	Output is correct
20	Correct	73 ms	31940 KB	Output is correct
21	Correct	74 ms	31940 KB	Output is correct
22	Correct	200 ms	39840 KB	Output is correct
23	Correct	335 ms	45768 KB	Output is correct
24	Correct	310 ms	46172 KB	Output is correct

Subtask #8
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	117 ms	45116 KB	Output is correct
2	Correct	141 ms	50456 KB	Output is correct
3	Correct	73 ms	31936 KB	Output is correct
4	Correct	73 ms	32012 KB	Output is correct
5	Correct	332 ms	65144 KB	Output is correct
6	Correct	444 ms	56272 KB	Output is correct
7	Correct	5 ms	12756 KB	Output is correct
8	Correct	217 ms	50796 KB	Output is correct
9	Correct	251 ms	57136 KB	Output is correct
10	Correct	120 ms	45216 KB	Output is correct
11	Correct	144 ms	50376 KB	Output is correct
12	Correct	5 ms	12756 KB	Output is correct
13	Correct	6 ms	12716 KB	Output is correct
14	Correct	5 ms	12756 KB	Output is correct
15	Correct	6 ms	12756 KB	Output is correct
16	Correct	70 ms	31908 KB	Output is correct
17	Correct	72 ms	31948 KB	Output is correct
18	Correct	116 ms	36296 KB	Output is correct
19	Correct	130 ms	39360 KB	Output is correct
20	Correct	122 ms	40008 KB	Output is correct
21	Correct	147 ms	43056 KB	Output is correct
22	Correct	130 ms	40124 KB	Output is correct
23	Correct	143 ms	43076 KB	Output is correct
24	Correct	72 ms	31904 KB	Output is correct
25	Correct	71 ms	31912 KB	Output is correct
26	Correct	136 ms	34600 KB	Output is correct
27	Correct	117 ms	35140 KB	Output is correct
28	Correct	196 ms	40268 KB	Output is correct
29	Correct	195 ms	39712 KB	Output is correct
30	Correct	192 ms	40188 KB	Output is correct
31	Correct	196 ms	40204 KB	Output is correct
32	Correct	5 ms	12720 KB	Output is correct
33	Correct	6 ms	12740 KB	Output is correct
34	Correct	6 ms	12768 KB	Output is correct
35	Correct	5 ms	12760 KB	Output is correct
36	Correct	6 ms	12756 KB	Output is correct
37	Correct	6 ms	12720 KB	Output is correct
38	Correct	7 ms	12720 KB	Output is correct
39	Correct	6 ms	12740 KB	Output is correct
40	Correct	6 ms	12864 KB	Output is correct
41	Correct	9 ms	12964 KB	Output is correct
42	Correct	6 ms	12856 KB	Output is correct
43	Correct	7 ms	12876 KB	Output is correct
44	Correct	6 ms	12848 KB	Output is correct
45	Correct	7 ms	12956 KB	Output is correct
46	Correct	7 ms	12792 KB	Output is correct
47	Correct	9 ms	13004 KB	Output is correct
48	Correct	78 ms	16088 KB	Output is correct
49	Correct	76 ms	16564 KB	Output is correct
50	Correct	69 ms	16464 KB	Output is correct
51	Correct	71 ms	16456 KB	Output is correct
52	Correct	68 ms	16328 KB	Output is correct
53	Correct	143 ms	19956 KB	Output is correct
54	Correct	17 ms	13460 KB	Output is correct
55	Correct	50 ms	14976 KB	Output is correct
56	Correct	7 ms	12884 KB	Output is correct
57	Correct	17 ms	13440 KB	Output is correct
58	Correct	11 ms	13620 KB	Output is correct
59	Correct	378 ms	29192 KB	Output is correct
60	Correct	457 ms	35276 KB	Output is correct
61	Correct	431 ms	35512 KB	Output is correct
62	Correct	466 ms	35640 KB	Output is correct
63	Correct	487 ms	35696 KB	Output is correct
64	Correct	451 ms	35560 KB	Output is correct
65	Correct	450 ms	35664 KB	Output is correct
66	Correct	171 ms	22144 KB	Output is correct
67	Correct	484 ms	37168 KB	Output is correct
68	Correct	183 ms	39976 KB	Output is correct
69	Correct	166 ms	29216 KB	Output is correct
70	Correct	321 ms	45764 KB	Output is correct
71	Correct	5 ms	12756 KB	Output is correct
72	Correct	5 ms	12776 KB	Output is correct
73	Correct	5 ms	12756 KB	Output is correct
74	Correct	5 ms	12768 KB	Output is correct
75	Correct	5 ms	12720 KB	Output is correct
76	Correct	6 ms	12756 KB	Output is correct
77	Correct	68 ms	31904 KB	Output is correct
78	Correct	70 ms	31944 KB	Output is correct
79	Correct	73 ms	31940 KB	Output is correct
80	Correct	74 ms	31940 KB	Output is correct
81	Correct	200 ms	39840 KB	Output is correct
82	Correct	335 ms	45768 KB	Output is correct
83	Correct	310 ms	46172 KB	Output is correct
84	Correct	546 ms	51352 KB	Output is correct
85	Correct	549 ms	52688 KB	Output is correct
86	Correct	461 ms	53680 KB	Output is correct
87	Correct	469 ms	56004 KB	Output is correct
88	Correct	6 ms	12756 KB	Output is correct
89	Correct	462 ms	55944 KB	Output is correct
90	Correct	485 ms	54808 KB	Output is correct
91	Correct	486 ms	54732 KB	Output is correct

답안 #746092

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