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Submission #400371

# Submission time Handle Problem Language Result Execution time Memory
400371 2021-05-07T22:21:01 Z nikatamliani Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1906 ms 220352 KB 
#include <bits/stdc++.h>
using namespace std;
void maxi(int &x, int y) {
	if(x < y) x = y;
}
int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	const int C = 150;
	int n, m, q;
	cin >> n >> m >> q;
	vector<vector<int>> g(n+1);
	vector<vector<int>> r(n+1);
	for(int i = 1; i <= m; ++i) {
		int u, v; cin >> u >> v;
		g[u].push_back(v);
		r[v].push_back(u);
	}
	vector<int> dst(n+1);
	vector<vector<pair<int, int>>> list(n+1); 
	for(int i = 1; i <= n; ++i) {
		for(int x : r[i]) {
			for(auto p : list[x]) maxi(dst[p.second], p.first);
		}
		for(int x : r[i]) {
			for(auto p : list[x]) {
				if(dst[p.second] == p.first)  {
					list[i].push_back({p.first+1, p.second});
					dst[p.second] = -1;
				}
			}
		}
		list[i].push_back({0, i});
		sort(list[i].rbegin(), list[i].rend());
		while((int)list[i].size() > C) list[i].pop_back();
		for(int x : r[i]) {
			for(auto p : list[x]) dst[p.second] = 0;
		}
	}
	vector<bool> blocked(n+1);
	while(q--) {
		int t, x; cin >> t >> x;
		vector<int> v(x);
		for(int i = 0; i < x; ++i) {
			cin >> v[i]; 
			blocked[v[i]] = 1;
		}
		int ans = -1;
		if(x < C) {
			for(pair<int, int> p : list[t]) {
				if(!blocked[p.second]) {
					ans = p.first;
					break;
				}
			}
		} else {
			vector<int> dp(n+1, -1e6);
			for(int i = 1; i <= t; ++i) {
				if(!blocked[i]) {
					dp[i] = 0;
				}
				for(int x : r[i]) {
					maxi(dp[i], dp[x]+1);
				}
			}
			ans = dp[t];
		}
		if(ans < 0) ans = -1;
		cout << ans << '\n';
		for(int i : v) blocked[i] = 0;
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 5 ms 844 KB Output is correct
6 Correct 4 ms 844 KB Output is correct
7 Correct 4 ms 844 KB Output is correct
8 Correct 8 ms 2252 KB Output is correct
9 Correct 8 ms 2252 KB Output is correct
10 Correct 7 ms 2252 KB Output is correct
11 Correct 8 ms 2124 KB Output is correct
12 Correct 7 ms 1484 KB Output is correct
13 Correct 8 ms 2124 KB Output is correct
14 Correct 7 ms 1484 KB Output is correct
15 Correct 7 ms 1100 KB Output is correct
16 Correct 7 ms 1484 KB Output is correct
17 Correct 9 ms 1680 KB Output is correct
18 Correct 8 ms 1236 KB Output is correct
19 Correct 8 ms 1820 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 5 ms 844 KB Output is correct
6 Correct 4 ms 844 KB Output is correct
7 Correct 4 ms 844 KB Output is correct
8 Correct 8 ms 2252 KB Output is correct
9 Correct 8 ms 2252 KB Output is correct
10 Correct 7 ms 2252 KB Output is correct
11 Correct 8 ms 2124 KB Output is correct
12 Correct 7 ms 1484 KB Output is correct
13 Correct 8 ms 2124 KB Output is correct
14 Correct 7 ms 1484 KB Output is correct
15 Correct 7 ms 1100 KB Output is correct
16 Correct 7 ms 1484 KB Output is correct
17 Correct 9 ms 1680 KB Output is correct
18 Correct 8 ms 1236 KB Output is correct
19 Correct 8 ms 1820 KB Output is correct
20 Correct 191 ms 5424 KB Output is correct
21 Correct 193 ms 5384 KB Output is correct
22 Correct 172 ms 5372 KB Output is correct
23 Correct 236 ms 5412 KB Output is correct
24 Correct 1118 ms 161240 KB Output is correct
25 Correct 1162 ms 162316 KB Output is correct
26 Correct 1166 ms 163204 KB Output is correct
27 Correct 987 ms 217264 KB Output is correct
28 Correct 863 ms 217156 KB Output is correct
29 Correct 837 ms 217236 KB Output is correct
30 Correct 816 ms 216348 KB Output is correct
31 Correct 1010 ms 213524 KB Output is correct
32 Correct 813 ms 216256 KB Output is correct
33 Correct 713 ms 138904 KB Output is correct
34 Correct 941 ms 159472 KB Output is correct
35 Correct 658 ms 137920 KB Output is correct
36 Correct 793 ms 178012 KB Output is correct
37 Correct 1057 ms 172004 KB Output is correct
38 Correct 783 ms 178448 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 5 ms 844 KB Output is correct
6 Correct 4 ms 844 KB Output is correct
7 Correct 4 ms 844 KB Output is correct
8 Correct 8 ms 2252 KB Output is correct
9 Correct 8 ms 2252 KB Output is correct
10 Correct 7 ms 2252 KB Output is correct
11 Correct 8 ms 2124 KB Output is correct
12 Correct 7 ms 1484 KB Output is correct
13 Correct 8 ms 2124 KB Output is correct
14 Correct 7 ms 1484 KB Output is correct
15 Correct 7 ms 1100 KB Output is correct
16 Correct 7 ms 1484 KB Output is correct
17 Correct 9 ms 1680 KB Output is correct
18 Correct 8 ms 1236 KB Output is correct
19 Correct 8 ms 1820 KB Output is correct
20 Correct 191 ms 5424 KB Output is correct
21 Correct 193 ms 5384 KB Output is correct
22 Correct 172 ms 5372 KB Output is correct
23 Correct 236 ms 5412 KB Output is correct
24 Correct 1118 ms 161240 KB Output is correct
25 Correct 1162 ms 162316 KB Output is correct
26 Correct 1166 ms 163204 KB Output is correct
27 Correct 987 ms 217264 KB Output is correct
28 Correct 863 ms 217156 KB Output is correct
29 Correct 837 ms 217236 KB Output is correct
30 Correct 816 ms 216348 KB Output is correct
31 Correct 1010 ms 213524 KB Output is correct
32 Correct 813 ms 216256 KB Output is correct
33 Correct 713 ms 138904 KB Output is correct
34 Correct 941 ms 159472 KB Output is correct
35 Correct 658 ms 137920 KB Output is correct
36 Correct 793 ms 178012 KB Output is correct
37 Correct 1057 ms 172004 KB Output is correct
38 Correct 783 ms 178448 KB Output is correct
39 Correct 1127 ms 161740 KB Output is correct
40 Correct 1046 ms 160292 KB Output is correct
41 Correct 1038 ms 161364 KB Output is correct
42 Correct 1210 ms 161188 KB Output is correct
43 Correct 1140 ms 164560 KB Output is correct
44 Correct 219 ms 7416 KB Output is correct
45 Correct 214 ms 6724 KB Output is correct
46 Correct 187 ms 6476 KB Output is correct
47 Correct 200 ms 6340 KB Output is correct
48 Correct 187 ms 6152 KB Output is correct
49 Correct 861 ms 219948 KB Output is correct
50 Correct 801 ms 218860 KB Output is correct
51 Correct 218 ms 7324 KB Output is correct
52 Correct 188 ms 6464 KB Output is correct
53 Correct 816 ms 180204 KB Output is correct
54 Correct 1077 ms 172628 KB Output is correct
55 Correct 778 ms 179164 KB Output is correct
56 Correct 1044 ms 175784 KB Output is correct
57 Correct 241 ms 7236 KB Output is correct
58 Correct 226 ms 7292 KB Output is correct
59 Correct 189 ms 6444 KB Output is correct
60 Correct 202 ms 6484 KB Output is correct
61 Correct 891 ms 219220 KB Output is correct
62 Correct 909 ms 180412 KB Output is correct
63 Correct 1124 ms 172024 KB Output is correct
64 Correct 1057 ms 219316 KB Output is correct
65 Correct 1199 ms 179692 KB Output is correct
66 Correct 1505 ms 173096 KB Output is correct
67 Correct 1252 ms 219160 KB Output is correct
68 Correct 1617 ms 180356 KB Output is correct
69 Correct 1906 ms 172540 KB Output is correct
70 Correct 848 ms 219376 KB Output is correct
71 Correct 826 ms 180324 KB Output is correct
72 Correct 1041 ms 172648 KB Output is correct
73 Correct 897 ms 219324 KB Output is correct
74 Correct 862 ms 180176 KB Output is correct
75 Correct 1108 ms 174240 KB Output is correct
76 Correct 889 ms 220352 KB Output is correct
77 Correct 1086 ms 219456 KB Output is correct
78 Correct 848 ms 219408 KB Output is correct
79 Correct 226 ms 7528 KB Output is correct
80 Correct 213 ms 6608 KB Output is correct
81 Correct 184 ms 6080 KB Output is correct
82 Correct 886 ms 219492 KB Output is correct
83 Correct 1104 ms 216840 KB Output is correct
84 Correct 1016 ms 218656 KB Output is correct
85 Correct 1290 ms 217276 KB Output is correct
86 Correct 813 ms 218684 KB Output is correct
87 Correct 1066 ms 216420 KB Output is correct
88 Correct 218 ms 7492 KB Output is correct
89 Correct 224 ms 7392 KB Output is correct
90 Correct 217 ms 6468 KB Output is correct
91 Correct 227 ms 6468 KB Output is correct
92 Correct 186 ms 6208 KB Output is correct
93 Correct 185 ms 6212 KB Output is correct
94 Correct 717 ms 142148 KB Output is correct
95 Correct 1012 ms 170948 KB Output is correct
96 Correct 947 ms 140624 KB Output is correct
97 Correct 1283 ms 171820 KB Output is correct
98 Correct 674 ms 140988 KB Output is correct
99 Correct 964 ms 167016 KB Output is correct
100 Correct 235 ms 7496 KB Output is correct
101 Correct 233 ms 7424 KB Output is correct
102 Correct 229 ms 6612 KB Output is correct
103 Correct 238 ms 6592 KB Output is correct
104 Correct 198 ms 6084 KB Output is correct
105 Correct 198 ms 6212 KB Output is correct
106 Correct 821 ms 180508 KB Output is correct
107 Correct 1090 ms 174756 KB Output is correct
108 Correct 1104 ms 180796 KB Output is correct
109 Correct 1318 ms 172432 KB Output is correct
110 Correct 795 ms 180924 KB Output is correct
111 Correct 1044 ms 172744 KB Output is correct
112 Correct 218 ms 7620 KB Output is correct
113 Correct 219 ms 7452 KB Output is correct
114 Correct 224 ms 6632 KB Output is correct
115 Correct 227 ms 6560 KB Output is correct
116 Correct 183 ms 6088 KB Output is correct
117 Correct 187 ms 6160 KB Output is correct
118 Correct 814 ms 218692 KB Output is correct
119 Correct 781 ms 180064 KB Output is correct
120 Correct 1022 ms 173520 KB Output is correct
121 Correct 823 ms 218816 KB Output is correct
122 Correct 778 ms 179444 KB Output is correct
123 Correct 1018 ms 173272 KB Output is correct
124 Correct 815 ms 218688 KB Output is correct
125 Correct 784 ms 180324 KB Output is correct
126 Correct 1000 ms 173176 KB Output is correct