답안 #1081856

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1081856	2024-08-30T12:04:22 Z	Thunnus	Bitaro’s Party (JOI18_bitaro)	C++17	100 / 100	609 ms	286408 KB

bitaro

#include<bits/stdc++.h>
using namespace std;
using i64 = long long;
#define int i64
#define vi vector<int>
#define vvi vector<vi>
#define vb vector<bool>
#define pii pair<int, int>
#define fi first
#define se second
#define sz(x) (int)(x).size() 

signed main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	const int SZ = 100;
	int n, m, q, a, b;
	cin >> n >> m >> q;
	vvi adj(n), radj(n);
	for(int i = 0; i < m; i++){
		cin >> a >> b;
		adj[--a].emplace_back(--b);
		radj[b].emplace_back(a);
	}

	vector<vector<pii>> bestSZ(n);
	vi starting(n, -1);
	for(int v = 0; v < n; v++){ // Duplicates are the issue
		vi from;
		bestSZ[v].emplace_back(0, v);
		for(int &u : radj[v]){
			for(pii &d : bestSZ[u]){
				if(starting[d.se] == -1){
					from.emplace_back(d.se);
					starting[d.se] = d.fi + 1;
				}
				else{
					starting[d.se] = max(starting[d.se], d.fi + 1);
				}
			}
		}
		for(int &u : from){
			bestSZ[v].emplace_back(starting[u], u);
		}
		sort(bestSZ[v].begin(), bestSZ[v].end(), greater<pii>());
		while(sz(bestSZ[v]) > SZ){
			bestSZ[v].pop_back();
		}

		for(int &u : from){
			starting[u] = -1;
		}
	}

	vb can(n, true);
	while(q--){
		int t, y, ans = -1;
		cin >> t >> y;
		t--;
		vi yi(y);
		for(int i = 0; i < y; i++){
			cin >> yi[i];
			can[--yi[i]] = false;
		}

		if(y >= SZ){
			vi dp(t + 1, -1);
			dp[t] = 0;
			for(int v = t; v >= 0; v--){
				if(dp[v] == -1) continue;
				if(can[v]) ans = max(ans, dp[v]);
				for(int &u : radj[v]){
					dp[u] = max(dp[u], dp[v] + 1);
				}
			}
		}
		else{
			for(pii &p : bestSZ[t]){
				if(can[p.se]){
					ans = p.fi;
					break;
				}
			}
		}
		
		for(int i = 0; i < y; i++){
			can[yi[i]] = true;
		}
		cout << ans << "\n";
	}
	return 0;
}

Subtask #1

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	2 ms	1372 KB	Output is correct
6	Correct	2 ms	1372 KB	Output is correct
7	Correct	3 ms	1372 KB	Output is correct
8	Correct	3 ms	2396 KB	Output is correct
9	Correct	3 ms	2396 KB	Output is correct
10	Correct	3 ms	2396 KB	Output is correct
11	Correct	3 ms	2396 KB	Output is correct
12	Correct	5 ms	2140 KB	Output is correct
13	Correct	4 ms	2408 KB	Output is correct
14	Correct	2 ms	1556 KB	Output is correct
15	Correct	3 ms	1492 KB	Output is correct
16	Correct	3 ms	1884 KB	Output is correct
17	Correct	5 ms	1884 KB	Output is correct
18	Correct	3 ms	1624 KB	Output is correct
19	Correct	3 ms	1884 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	2 ms	1372 KB	Output is correct
6	Correct	2 ms	1372 KB	Output is correct
7	Correct	3 ms	1372 KB	Output is correct
8	Correct	3 ms	2396 KB	Output is correct
9	Correct	3 ms	2396 KB	Output is correct
10	Correct	3 ms	2396 KB	Output is correct
11	Correct	3 ms	2396 KB	Output is correct
12	Correct	5 ms	2140 KB	Output is correct
13	Correct	4 ms	2408 KB	Output is correct
14	Correct	2 ms	1556 KB	Output is correct
15	Correct	3 ms	1492 KB	Output is correct
16	Correct	3 ms	1884 KB	Output is correct
17	Correct	5 ms	1884 KB	Output is correct
18	Correct	3 ms	1624 KB	Output is correct
19	Correct	3 ms	1884 KB	Output is correct
20	Correct	55 ms	8532 KB	Output is correct
21	Correct	55 ms	8612 KB	Output is correct
22	Correct	49 ms	8520 KB	Output is correct
23	Correct	57 ms	8532 KB	Output is correct
24	Correct	541 ms	225740 KB	Output is correct
25	Correct	547 ms	217684 KB	Output is correct
26	Correct	546 ms	216900 KB	Output is correct
27	Correct	345 ms	221980 KB	Output is correct
28	Correct	337 ms	222044 KB	Output is correct
29	Correct	327 ms	222192 KB	Output is correct
30	Correct	312 ms	220752 KB	Output is correct
31	Correct	399 ms	257108 KB	Output is correct
32	Correct	308 ms	220756 KB	Output is correct
33	Correct	272 ms	148932 KB	Output is correct
34	Correct	447 ms	207444 KB	Output is correct
35	Correct	265 ms	148564 KB	Output is correct
36	Correct	295 ms	183124 KB	Output is correct
37	Correct	455 ms	226388 KB	Output is correct
38	Correct	280 ms	183124 KB	Output is correct

Subtask #3

86.0 / 86.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	2 ms	1372 KB	Output is correct
6	Correct	2 ms	1372 KB	Output is correct
7	Correct	3 ms	1372 KB	Output is correct
8	Correct	3 ms	2396 KB	Output is correct
9	Correct	3 ms	2396 KB	Output is correct
10	Correct	3 ms	2396 KB	Output is correct
11	Correct	3 ms	2396 KB	Output is correct
12	Correct	5 ms	2140 KB	Output is correct
13	Correct	4 ms	2408 KB	Output is correct
14	Correct	2 ms	1556 KB	Output is correct
15	Correct	3 ms	1492 KB	Output is correct
16	Correct	3 ms	1884 KB	Output is correct
17	Correct	5 ms	1884 KB	Output is correct
18	Correct	3 ms	1624 KB	Output is correct
19	Correct	3 ms	1884 KB	Output is correct
20	Correct	55 ms	8532 KB	Output is correct
21	Correct	55 ms	8612 KB	Output is correct
22	Correct	49 ms	8520 KB	Output is correct
23	Correct	57 ms	8532 KB	Output is correct
24	Correct	541 ms	225740 KB	Output is correct
25	Correct	547 ms	217684 KB	Output is correct
26	Correct	546 ms	216900 KB	Output is correct
27	Correct	345 ms	221980 KB	Output is correct
28	Correct	337 ms	222044 KB	Output is correct
29	Correct	327 ms	222192 KB	Output is correct
30	Correct	312 ms	220752 KB	Output is correct
31	Correct	399 ms	257108 KB	Output is correct
32	Correct	308 ms	220756 KB	Output is correct
33	Correct	272 ms	148932 KB	Output is correct
34	Correct	447 ms	207444 KB	Output is correct
35	Correct	265 ms	148564 KB	Output is correct
36	Correct	295 ms	183124 KB	Output is correct
37	Correct	455 ms	226388 KB	Output is correct
38	Correct	280 ms	183124 KB	Output is correct
39	Correct	528 ms	228948 KB	Output is correct
40	Correct	479 ms	220240 KB	Output is correct
41	Correct	514 ms	223720 KB	Output is correct
42	Correct	491 ms	222020 KB	Output is correct
43	Correct	486 ms	225260 KB	Output is correct
44	Correct	63 ms	9812 KB	Output is correct
45	Correct	53 ms	9088 KB	Output is correct
46	Correct	95 ms	9036 KB	Output is correct
47	Correct	54 ms	8792 KB	Output is correct
48	Correct	47 ms	8472 KB	Output is correct
49	Correct	342 ms	222292 KB	Output is correct
50	Correct	606 ms	222620 KB	Output is correct
51	Correct	62 ms	9812 KB	Output is correct
52	Correct	96 ms	8940 KB	Output is correct
53	Correct	304 ms	182596 KB	Output is correct
54	Correct	475 ms	224956 KB	Output is correct
55	Correct	469 ms	182764 KB	Output is correct
56	Correct	575 ms	232184 KB	Output is correct
57	Correct	62 ms	9808 KB	Output is correct
58	Correct	61 ms	9552 KB	Output is correct
59	Correct	98 ms	8984 KB	Output is correct
60	Correct	95 ms	8788 KB	Output is correct
61	Correct	359 ms	221908 KB	Output is correct
62	Correct	325 ms	183948 KB	Output is correct
63	Correct	453 ms	223764 KB	Output is correct
64	Correct	476 ms	222536 KB	Output is correct
65	Correct	384 ms	182932 KB	Output is correct
66	Correct	520 ms	226828 KB	Output is correct
67	Correct	585 ms	222272 KB	Output is correct
68	Correct	442 ms	183708 KB	Output is correct
69	Correct	543 ms	227748 KB	Output is correct
70	Correct	323 ms	222560 KB	Output is correct
71	Correct	278 ms	183336 KB	Output is correct
72	Correct	452 ms	226900 KB	Output is correct
73	Correct	326 ms	222436 KB	Output is correct
74	Correct	294 ms	183140 KB	Output is correct
75	Correct	452 ms	231836 KB	Output is correct
76	Correct	319 ms	222804 KB	Output is correct
77	Correct	609 ms	222632 KB	Output is correct
78	Correct	317 ms	222204 KB	Output is correct
79	Correct	64 ms	9784 KB	Output is correct
80	Correct	88 ms	9044 KB	Output is correct
81	Correct	51 ms	8788 KB	Output is correct
82	Correct	319 ms	221960 KB	Output is correct
83	Correct	442 ms	264644 KB	Output is correct
84	Correct	552 ms	221616 KB	Output is correct
85	Correct	573 ms	286408 KB	Output is correct
86	Correct	300 ms	221092 KB	Output is correct
87	Correct	411 ms	263808 KB	Output is correct
88	Correct	64 ms	9808 KB	Output is correct
89	Correct	67 ms	9812 KB	Output is correct
90	Correct	98 ms	9044 KB	Output is correct
91	Correct	106 ms	9060 KB	Output is correct
92	Correct	48 ms	8636 KB	Output is correct
93	Correct	48 ms	8528 KB	Output is correct
94	Correct	279 ms	150604 KB	Output is correct
95	Correct	479 ms	221484 KB	Output is correct
96	Correct	420 ms	149576 KB	Output is correct
97	Correct	556 ms	223428 KB	Output is correct
98	Correct	256 ms	149880 KB	Output is correct
99	Correct	416 ms	214944 KB	Output is correct
100	Correct	62 ms	9812 KB	Output is correct
101	Correct	63 ms	9936 KB	Output is correct
102	Correct	82 ms	8984 KB	Output is correct
103	Correct	79 ms	9044 KB	Output is correct
104	Correct	46 ms	8628 KB	Output is correct
105	Correct	45 ms	8664 KB	Output is correct
106	Correct	303 ms	183124 KB	Output is correct
107	Correct	558 ms	235692 KB	Output is correct
108	Correct	432 ms	183744 KB	Output is correct
109	Correct	513 ms	219136 KB	Output is correct
110	Correct	309 ms	184408 KB	Output is correct
111	Correct	443 ms	229124 KB	Output is correct
112	Correct	62 ms	9976 KB	Output is correct
113	Correct	62 ms	9972 KB	Output is correct
114	Correct	89 ms	8876 KB	Output is correct
115	Correct	89 ms	9040 KB	Output is correct
116	Correct	45 ms	8532 KB	Output is correct
117	Correct	47 ms	8532 KB	Output is correct
118	Correct	303 ms	221012 KB	Output is correct
119	Correct	272 ms	182600 KB	Output is correct
120	Correct	470 ms	237140 KB	Output is correct
121	Correct	300 ms	221088 KB	Output is correct
122	Correct	276 ms	181840 KB	Output is correct
123	Correct	469 ms	235600 KB	Output is correct
124	Correct	305 ms	221152 KB	Output is correct
125	Correct	289 ms	182868 KB	Output is correct
126	Correct	445 ms	229064 KB	Output is correct