oj.uz

답안 #883733

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
883733 2023-12-05T22:18:54 Z Hakiers Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1755 ms 419816 KB 
#include <bits/stdc++.h>
using namespace std;
constexpr int MAXN = 1e5 + 7;
constexpr int SQRT = 300;
vector<int> G[MAXN];
vector<pair<int, int>> dp[MAXN];
int dist[MAXN];
bool visited[MAXN];
int ans[MAXN];
int n, m, q;

void compute(int v){
	vector<int> tmp;
	ans[v] = -1;
	dist[v] = 0;
	tmp.push_back(v);
	
	for(auto u : G[v]){
		for(auto [D, k] : dp[u]){	
			if(!dist[k])
				tmp.push_back(k);
			dist[k] = max(dist[k], D + 1);
		}
	}
	
	for(auto x : tmp){
		dp[v].push_back({dist[x], x});
		dist[x] = 0;
	}
	
	sort(dp[v].begin(), dp[v].end());
	reverse(dp[v].begin(), dp[v].end());
	
	while(dp[v].size() > SQRT)
		dp[v].pop_back();

}

void dfs(int v){
	if(dist[v] != -1)
		dist[v] = 0;
	visited[v] = 1;
	
	for(auto u : G[v]){
		if(!visited[u]) dfs(u);
		
		if(dist[u] == -1) continue;
		dist[v] = max(dist[v], dist[u] + 1);
	}
}

int ans1(int v, int l){
	
	for(int i = 1; i <= l; i++){
		int u;
		cin >> u;
		dist[u] = -1;
	}
		
	dfs(v);
	int res = dist[v];
	
	for(int i = 1; i <= n; i++)
		visited[i] = dist[i] = 0;
	
	return res;
}

int ans2(int v, int l){
	for(auto [x, u] : dp[v])
		ans[u] = x;
	
		
	for(int i = 1; i <= l; i++){
		int u;
		cin >> u;
		ans[u] = -1;
	}
	
	
	int res = -1;
	for(auto [x, u] : dp[v]){
		res = max(res, ans[u]);
		ans[u] = -1;
	}
	
	return res;
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m >> q;
	
	for(int i = 1; i <= m; i++){
		int u, v;
		cin >> u >> v;
		G[v].push_back(u);
	}
	
	for(int i = 1; i <= n; i++)
		compute(i);
	
	
	for(int i = 1; i <= q; i++){
		int v, l;
		cin >> v >> l;
		if(l >= SQRT) cout << ans1(v, l) << "\n";
		else cout << ans2(v, l) << "\n";
	}
}

Compilation message

bitaro.cpp: In function 'int ans1(int, int)':
bitaro.cpp:64:24: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   64 |   visited[i] = dist[i] = 0;
      |                ~~~~~~~~^~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 1 ms 5724 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 3 ms 6148 KB Output is correct
6 Correct 4 ms 6184 KB Output is correct
7 Correct 3 ms 6236 KB Output is correct
8 Correct 11 ms 9052 KB Output is correct
9 Correct 11 ms 9052 KB Output is correct
10 Correct 11 ms 9164 KB Output is correct
11 Correct 10 ms 8796 KB Output is correct
12 Correct 6 ms 7000 KB Output is correct
13 Correct 10 ms 8540 KB Output is correct
14 Correct 9 ms 7772 KB Output is correct
15 Correct 6 ms 6720 KB Output is correct
16 Correct 8 ms 7772 KB Output is correct
17 Correct 9 ms 8080 KB Output is correct
18 Correct 6 ms 7004 KB Output is correct
19 Correct 10 ms 8180 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 1 ms 5724 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 3 ms 6148 KB Output is correct
6 Correct 4 ms 6184 KB Output is correct
7 Correct 3 ms 6236 KB Output is correct
8 Correct 11 ms 9052 KB Output is correct
9 Correct 11 ms 9052 KB Output is correct
10 Correct 11 ms 9164 KB Output is correct
11 Correct 10 ms 8796 KB Output is correct
12 Correct 6 ms 7000 KB Output is correct
13 Correct 10 ms 8540 KB Output is correct
14 Correct 9 ms 7772 KB Output is correct
15 Correct 6 ms 6720 KB Output is correct
16 Correct 8 ms 7772 KB Output is correct
17 Correct 9 ms 8080 KB Output is correct
18 Correct 6 ms 7004 KB Output is correct
19 Correct 10 ms 8180 KB Output is correct
20 Correct 87 ms 10316 KB Output is correct
21 Correct 85 ms 10756 KB Output is correct
22 Correct 87 ms 10264 KB Output is correct
23 Correct 101 ms 10328 KB Output is correct
24 Correct 1231 ms 258460 KB Output is correct
25 Correct 1286 ms 267684 KB Output is correct
26 Correct 1264 ms 266408 KB Output is correct
27 Correct 1256 ms 414380 KB Output is correct
28 Correct 1209 ms 414516 KB Output is correct
29 Correct 1268 ms 416012 KB Output is correct
30 Correct 1278 ms 410348 KB Output is correct
31 Correct 1558 ms 398360 KB Output is correct
32 Correct 1268 ms 410684 KB Output is correct
33 Correct 805 ms 252756 KB Output is correct
34 Correct 1160 ms 271132 KB Output is correct
35 Correct 770 ms 250964 KB Output is correct
36 Correct 937 ms 331540 KB Output is correct
37 Correct 1323 ms 303672 KB Output is correct
38 Correct 929 ms 332868 KB Output is correct

Subtask #3
86.0 / 86.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5724 KB Output is correct
2 Correct 1 ms 5724 KB Output is correct
3 Correct 1 ms 5724 KB Output is correct
4 Correct 2 ms 5724 KB Output is correct
5 Correct 3 ms 6148 KB Output is correct
6 Correct 4 ms 6184 KB Output is correct
7 Correct 3 ms 6236 KB Output is correct
8 Correct 11 ms 9052 KB Output is correct
9 Correct 11 ms 9052 KB Output is correct
10 Correct 11 ms 9164 KB Output is correct
11 Correct 10 ms 8796 KB Output is correct
12 Correct 6 ms 7000 KB Output is correct
13 Correct 10 ms 8540 KB Output is correct
14 Correct 9 ms 7772 KB Output is correct
15 Correct 6 ms 6720 KB Output is correct
16 Correct 8 ms 7772 KB Output is correct
17 Correct 9 ms 8080 KB Output is correct
18 Correct 6 ms 7004 KB Output is correct
19 Correct 10 ms 8180 KB Output is correct
20 Correct 87 ms 10316 KB Output is correct
21 Correct 85 ms 10756 KB Output is correct
22 Correct 87 ms 10264 KB Output is correct
23 Correct 101 ms 10328 KB Output is correct
24 Correct 1231 ms 258460 KB Output is correct
25 Correct 1286 ms 267684 KB Output is correct
26 Correct 1264 ms 266408 KB Output is correct
27 Correct 1256 ms 414380 KB Output is correct
28 Correct 1209 ms 414516 KB Output is correct
29 Correct 1268 ms 416012 KB Output is correct
30 Correct 1278 ms 410348 KB Output is correct
31 Correct 1558 ms 398360 KB Output is correct
32 Correct 1268 ms 410684 KB Output is correct
33 Correct 805 ms 252756 KB Output is correct
34 Correct 1160 ms 271132 KB Output is correct
35 Correct 770 ms 250964 KB Output is correct
36 Correct 937 ms 331540 KB Output is correct
37 Correct 1323 ms 303672 KB Output is correct
38 Correct 929 ms 332868 KB Output is correct
39 Correct 1389 ms 262296 KB Output is correct
40 Correct 1254 ms 263128 KB Output is correct
41 Correct 1245 ms 264780 KB Output is correct
42 Correct 1273 ms 263208 KB Output is correct
43 Correct 1244 ms 263608 KB Output is correct
44 Correct 145 ms 10612 KB Output is correct
45 Correct 102 ms 10408 KB Output is correct
46 Correct 92 ms 10140 KB Output is correct
47 Correct 105 ms 10292 KB Output is correct
48 Correct 96 ms 10144 KB Output is correct
49 Correct 1323 ms 411460 KB Output is correct
50 Correct 1204 ms 411120 KB Output is correct
51 Correct 146 ms 10692 KB Output is correct
52 Correct 100 ms 10348 KB Output is correct
53 Correct 1025 ms 330880 KB Output is correct
54 Correct 1413 ms 308668 KB Output is correct
55 Correct 901 ms 333240 KB Output is correct
56 Correct 1351 ms 309812 KB Output is correct
57 Correct 154 ms 12900 KB Output is correct
58 Correct 154 ms 12920 KB Output is correct
59 Correct 93 ms 12136 KB Output is correct
60 Correct 97 ms 12048 KB Output is correct
61 Correct 1359 ms 419644 KB Output is correct
62 Correct 1006 ms 334620 KB Output is correct
63 Correct 1336 ms 306588 KB Output is correct
64 Correct 1536 ms 419816 KB Output is correct
65 Correct 1206 ms 333400 KB Output is correct
66 Correct 1495 ms 310408 KB Output is correct
67 Correct 1217 ms 413508 KB Output is correct
68 Correct 910 ms 334840 KB Output is correct
69 Correct 1303 ms 304092 KB Output is correct
70 Correct 1325 ms 419052 KB Output is correct
71 Correct 944 ms 334612 KB Output is correct
72 Correct 1353 ms 307636 KB Output is correct
73 Correct 1307 ms 419592 KB Output is correct
74 Correct 1002 ms 334788 KB Output is correct
75 Correct 1309 ms 308272 KB Output is correct
76 Correct 1377 ms 415440 KB Output is correct
77 Correct 1253 ms 413728 KB Output is correct
78 Correct 1257 ms 419512 KB Output is correct
79 Correct 147 ms 13140 KB Output is correct
80 Correct 100 ms 12180 KB Output is correct
81 Correct 90 ms 11948 KB Output is correct
82 Correct 1414 ms 414924 KB Output is correct
83 Correct 1755 ms 402252 KB Output is correct
84 Correct 1259 ms 413012 KB Output is correct
85 Correct 1655 ms 401592 KB Output is correct
86 Correct 1305 ms 414068 KB Output is correct
87 Correct 1642 ms 401744 KB Output is correct
88 Correct 150 ms 13020 KB Output is correct
89 Correct 147 ms 13140 KB Output is correct
90 Correct 96 ms 12260 KB Output is correct
91 Correct 90 ms 12188 KB Output is correct
92 Correct 90 ms 11720 KB Output is correct
93 Correct 91 ms 11856 KB Output is correct
94 Correct 879 ms 256812 KB Output is correct
95 Correct 1317 ms 288336 KB Output is correct
96 Correct 777 ms 254472 KB Output is correct
97 Correct 1326 ms 291296 KB Output is correct
98 Correct 852 ms 255404 KB Output is correct
99 Correct 1232 ms 284428 KB Output is correct
100 Correct 165 ms 13140 KB Output is correct
101 Correct 171 ms 13036 KB Output is correct
102 Correct 113 ms 12112 KB Output is correct
103 Correct 104 ms 12204 KB Output is correct
104 Correct 99 ms 11744 KB Output is correct
105 Correct 103 ms 11720 KB Output is correct
106 Correct 1027 ms 334764 KB Output is correct
107 Correct 1442 ms 309840 KB Output is correct
108 Correct 894 ms 335556 KB Output is correct
109 Correct 1256 ms 307796 KB Output is correct
110 Correct 933 ms 335800 KB Output is correct
111 Correct 1336 ms 308276 KB Output is correct
112 Correct 159 ms 13216 KB Output is correct
113 Correct 151 ms 13224 KB Output is correct
114 Correct 100 ms 12088 KB Output is correct
115 Correct 93 ms 12108 KB Output is correct
116 Correct 86 ms 11856 KB Output is correct
117 Correct 87 ms 11860 KB Output is correct
118 Correct 1216 ms 413700 KB Output is correct
119 Correct 914 ms 335364 KB Output is correct
120 Correct 1324 ms 305484 KB Output is correct
121 Correct 1267 ms 413468 KB Output is correct
122 Correct 927 ms 333932 KB Output is correct
123 Correct 1299 ms 308684 KB Output is correct
124 Correct 1228 ms 413300 KB Output is correct
125 Correct 937 ms 335628 KB Output is correct
126 Correct 1282 ms 307900 KB Output is correct