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답안 #334198

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
334198 2020-12-08T15:38:37 Z trthminh Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1688 ms 120684 KB 
#include<bits/stdc++.h>

#define X first
#define Y second
#define PB push_back

using namespace std;

const int maxn = 1e5 + 7;
const int oo = 1e9;
const int K = 100;

typedef pair < int, int > pii;

vector < pii > furthest[maxn];
vector < int > v[maxn], r[maxn];
int dis[maxn], busy[maxn], n, m, q, uso[maxn], cnt[maxn];


void spoji(int x)
{
	priority_queue < pii > Q;
	for(int y : r[x])
    {
		cnt[y] = 0;
		Q.push({furthest[y][0].X, y});
	}
	while((!Q.empty()) && furthest[x].size() < K)
    {
		int ind = Q.top().Y;
		if(!uso[furthest[ind][cnt[ind]].Y])
		{
			uso[furthest[ind][cnt[ind]].Y] = 1;
			furthest[x].PB(furthest[ind][cnt[ind]]);
		}
		Q.pop();
        cnt[ind]++;
		if(cnt[ind] < (int)furthest[ind].size())
			Q.push({furthest[ind][cnt[ind]].X, ind});
	}
	for(pii &tmp : furthest[x])
		uso[tmp.Y] = 0, tmp.X++;
	if(furthest[x].size() < K)
		furthest[x].PB({0, x});
}

void precompute()
{
	for(int i = 1;i <= n;i++)
		spoji(i);
}

int lonhoncan(int x)
{
	for(int i = 1;i <= n;i++)
		dis[i] = -oo;
	dis[x] = 0;
	int res = -1;
	for(int i = x; i >= 1 ; i--)
    {
		for(int j : v[i])
			dis[i] = max(dis[i], dis[j] + 1);
		if(!busy[i])
			res = max(res, dis[i]);
	}
	return res;
}

int main()
{
	//freopen("bitaro.inp", "r", stdin);
	cin >> n >> m >> q;
	while (m--)
    {
		int x, y;
        cin >> x >> y;
		v[x].PB(y);
		r[y].PB(x);
	}
	precompute();
	while (q--)
    {
		int st;
		cin >> st;
		int n_people_busy;
		cin >> n_people_busy;
		vector < int > tmp;
		while(n_people_busy--)
        {
			int x; cin >> x;
			tmp.PB(x); busy[x] = 1;
		}

		if(tmp.size() >= K)
			cout << lonhoncan(st) << '\n';
		else{
			int res = -1;
			for(pii ttm : furthest[st]) // K thang lon nhat cua st
				if(!busy[ttm.Y]) res = max(res, ttm.X);
			cout << res << '\n';
		}
		for(int x : tmp) busy[x] = 0;
	}
	return 0;
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7404 KB Output is correct
2 Correct 5 ms 7404 KB Output is correct
3 Correct 5 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 9 ms 7916 KB Output is correct
6 Correct 9 ms 7916 KB Output is correct
7 Correct 10 ms 7916 KB Output is correct
8 Correct 12 ms 8428 KB Output is correct
9 Correct 12 ms 8428 KB Output is correct
10 Correct 12 ms 8428 KB Output is correct
11 Correct 12 ms 8428 KB Output is correct
12 Correct 11 ms 8204 KB Output is correct
13 Correct 12 ms 8448 KB Output is correct
14 Correct 10 ms 8044 KB Output is correct
15 Correct 9 ms 7788 KB Output is correct
16 Correct 10 ms 8044 KB Output is correct
17 Correct 11 ms 8192 KB Output is correct
18 Correct 10 ms 8044 KB Output is correct
19 Correct 11 ms 8172 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7404 KB Output is correct
2 Correct 5 ms 7404 KB Output is correct
3 Correct 5 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 9 ms 7916 KB Output is correct
6 Correct 9 ms 7916 KB Output is correct
7 Correct 10 ms 7916 KB Output is correct
8 Correct 12 ms 8428 KB Output is correct
9 Correct 12 ms 8428 KB Output is correct
10 Correct 12 ms 8428 KB Output is correct
11 Correct 12 ms 8428 KB Output is correct
12 Correct 11 ms 8204 KB Output is correct
13 Correct 12 ms 8448 KB Output is correct
14 Correct 10 ms 8044 KB Output is correct
15 Correct 9 ms 7788 KB Output is correct
16 Correct 10 ms 8044 KB Output is correct
17 Correct 11 ms 8192 KB Output is correct
18 Correct 10 ms 8044 KB Output is correct
19 Correct 11 ms 8172 KB Output is correct
20 Correct 396 ms 10804 KB Output is correct
21 Correct 282 ms 10860 KB Output is correct
22 Correct 386 ms 10988 KB Output is correct
23 Correct 212 ms 10860 KB Output is correct
24 Correct 739 ms 91972 KB Output is correct
25 Correct 756 ms 93424 KB Output is correct
26 Correct 758 ms 93032 KB Output is correct
27 Correct 703 ms 117224 KB Output is correct
28 Correct 712 ms 117244 KB Output is correct
29 Correct 707 ms 117096 KB Output is correct
30 Correct 713 ms 116768 KB Output is correct
31 Correct 733 ms 114664 KB Output is correct
32 Correct 710 ms 116376 KB Output is correct
33 Correct 548 ms 79336 KB Output is correct
34 Correct 527 ms 72044 KB Output is correct
35 Correct 542 ms 78744 KB Output is correct
36 Correct 634 ms 98160 KB Output is correct
37 Correct 641 ms 93544 KB Output is correct
38 Correct 640 ms 98288 KB Output is correct

Subtask #3
86.0 / 86.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7404 KB Output is correct
2 Correct 5 ms 7404 KB Output is correct
3 Correct 5 ms 7404 KB Output is correct
4 Correct 5 ms 7404 KB Output is correct
5 Correct 9 ms 7916 KB Output is correct
6 Correct 9 ms 7916 KB Output is correct
7 Correct 10 ms 7916 KB Output is correct
8 Correct 12 ms 8428 KB Output is correct
9 Correct 12 ms 8428 KB Output is correct
10 Correct 12 ms 8428 KB Output is correct
11 Correct 12 ms 8428 KB Output is correct
12 Correct 11 ms 8204 KB Output is correct
13 Correct 12 ms 8448 KB Output is correct
14 Correct 10 ms 8044 KB Output is correct
15 Correct 9 ms 7788 KB Output is correct
16 Correct 10 ms 8044 KB Output is correct
17 Correct 11 ms 8192 KB Output is correct
18 Correct 10 ms 8044 KB Output is correct
19 Correct 11 ms 8172 KB Output is correct
20 Correct 396 ms 10804 KB Output is correct
21 Correct 282 ms 10860 KB Output is correct
22 Correct 386 ms 10988 KB Output is correct
23 Correct 212 ms 10860 KB Output is correct
24 Correct 739 ms 91972 KB Output is correct
25 Correct 756 ms 93424 KB Output is correct
26 Correct 758 ms 93032 KB Output is correct
27 Correct 703 ms 117224 KB Output is correct
28 Correct 712 ms 117244 KB Output is correct
29 Correct 707 ms 117096 KB Output is correct
30 Correct 713 ms 116768 KB Output is correct
31 Correct 733 ms 114664 KB Output is correct
32 Correct 710 ms 116376 KB Output is correct
33 Correct 548 ms 79336 KB Output is correct
34 Correct 527 ms 72044 KB Output is correct
35 Correct 542 ms 78744 KB Output is correct
36 Correct 634 ms 98160 KB Output is correct
37 Correct 641 ms 93544 KB Output is correct
38 Correct 640 ms 98288 KB Output is correct
39 Correct 1075 ms 91880 KB Output is correct
40 Correct 817 ms 92216 KB Output is correct
41 Correct 1688 ms 92852 KB Output is correct
42 Correct 924 ms 95604 KB Output is correct
43 Correct 766 ms 95084 KB Output is correct
44 Correct 704 ms 13748 KB Output is correct
45 Correct 440 ms 12780 KB Output is correct
46 Correct 504 ms 12908 KB Output is correct
47 Correct 405 ms 12524 KB Output is correct
48 Correct 396 ms 12396 KB Output is correct
49 Correct 1046 ms 119956 KB Output is correct
50 Correct 1473 ms 119148 KB Output is correct
51 Correct 581 ms 13548 KB Output is correct
52 Correct 404 ms 12700 KB Output is correct
53 Correct 975 ms 100472 KB Output is correct
54 Correct 966 ms 96108 KB Output is correct
55 Correct 1440 ms 99820 KB Output is correct
56 Correct 1587 ms 95868 KB Output is correct
57 Correct 702 ms 13420 KB Output is correct
58 Correct 741 ms 13424 KB Output is correct
59 Correct 598 ms 12524 KB Output is correct
60 Correct 505 ms 12652 KB Output is correct
61 Correct 873 ms 119148 KB Output is correct
62 Correct 779 ms 100204 KB Output is correct
63 Correct 776 ms 95212 KB Output is correct
64 Correct 1164 ms 119320 KB Output is correct
65 Correct 1064 ms 99948 KB Output is correct
66 Correct 1063 ms 95852 KB Output is correct
67 Correct 1444 ms 119148 KB Output is correct
68 Correct 1332 ms 100204 KB Output is correct
69 Correct 1444 ms 94956 KB Output is correct
70 Correct 735 ms 119392 KB Output is correct
71 Correct 663 ms 100460 KB Output is correct
72 Correct 669 ms 95852 KB Output is correct
73 Correct 774 ms 119368 KB Output is correct
74 Correct 697 ms 100332 KB Output is correct
75 Correct 684 ms 95596 KB Output is correct
76 Correct 1048 ms 120684 KB Output is correct
77 Correct 1445 ms 119788 KB Output is correct
78 Correct 734 ms 119912 KB Output is correct
79 Correct 594 ms 13548 KB Output is correct
80 Correct 401 ms 12780 KB Output is correct
81 Correct 280 ms 12276 KB Output is correct
82 Correct 1064 ms 119916 KB Output is correct
83 Correct 1072 ms 117996 KB Output is correct
84 Correct 1511 ms 119148 KB Output is correct
85 Correct 1632 ms 117100 KB Output is correct
86 Correct 749 ms 119200 KB Output is correct
87 Correct 759 ms 117536 KB Output is correct
88 Correct 673 ms 13676 KB Output is correct
89 Correct 710 ms 13676 KB Output is correct
90 Correct 496 ms 12652 KB Output is correct
91 Correct 517 ms 12716 KB Output is correct
92 Correct 385 ms 12436 KB Output is correct
93 Correct 394 ms 12396 KB Output is correct
94 Correct 889 ms 82796 KB Output is correct
95 Correct 858 ms 75116 KB Output is correct
96 Correct 1229 ms 81680 KB Output is correct
97 Correct 1216 ms 75372 KB Output is correct
98 Correct 567 ms 81960 KB Output is correct
99 Correct 565 ms 75356 KB Output is correct
100 Correct 556 ms 13676 KB Output is correct
101 Correct 539 ms 13944 KB Output is correct
102 Correct 341 ms 12684 KB Output is correct
103 Correct 310 ms 12780 KB Output is correct
104 Correct 232 ms 12396 KB Output is correct
105 Correct 219 ms 12396 KB Output is correct
106 Correct 980 ms 101328 KB Output is correct
107 Correct 974 ms 97132 KB Output is correct
108 Correct 1438 ms 101100 KB Output is correct
109 Correct 1465 ms 95896 KB Output is correct
110 Correct 678 ms 101256 KB Output is correct
111 Correct 674 ms 96424 KB Output is correct
112 Correct 674 ms 13584 KB Output is correct
113 Correct 702 ms 13672 KB Output is correct
114 Correct 488 ms 12780 KB Output is correct
115 Correct 504 ms 12732 KB Output is correct
116 Correct 369 ms 12268 KB Output is correct
117 Correct 394 ms 12268 KB Output is correct
118 Correct 741 ms 118680 KB Output is correct
119 Correct 665 ms 99948 KB Output is correct
120 Correct 657 ms 94828 KB Output is correct
121 Correct 749 ms 118764 KB Output is correct
122 Correct 678 ms 99564 KB Output is correct
123 Correct 672 ms 94780 KB Output is correct
124 Correct 736 ms 118776 KB Output is correct
125 Correct 643 ms 100204 KB Output is correct
126 Correct 646 ms 94828 KB Output is correct