답안 #925654

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
925654	2024-02-12T06:57:49 Z	vjudge1	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	34504 KB

Joker

#pragma GCC optimize("O3", "unroll-loops") // "Ofast" 	
#pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt") 

#include <bits/stdc++.h>

//#define int long long
#define vt vector
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define f first
#define s second
#define dbg(x) cerr << #x << " = " << x << '\n'
#define bit(x, i) ((x) >> (i) & 1)

using namespace std;
using ll = long long;
using ld = long double;
using pii = pair<int, int>;

const int N = 1e6 + 5, mod = 1e9 + 7;
const ll inf = 1e18 + 7;
const ld eps = 1e-6;

ll add (ll a, ll b) {
	a += b;
	if (a < 0) a += mod;
	if (a >= mod) a -= mod;
	return a;
}

ll mul (ll a, ll b) {
	a *= b;
	if (a >= mod) a %= mod;
	return a;
}

int n, m, Q;
vt<int> g[N];
int used[N];

struct Data {
	int x, y, id;
}edge[N];

string get (int l, int r) {
    for (int i = 1; i <= n; i++) used[i] = 0, g[i].clear();
	for (int i = 1; i <= m; i++) {
		int x = edge[i].x, y = edge[i].y, id = edge[i].id;
		if (!(id >= l && id <= r)) g[x].pb(y), g[y].pb(x);
	}
	bool ok = 1;
	queue<int> q;
	for (int i = 1; i <= n; i++) {
		if (!used[i]) {
			q.push(i);
			used[i] = 1;
			while (!q.empty()) {
				int v = q.front();
				q.pop();
				for (auto to: g[v]) {
					if (!used[to]) {
						used[to] = 3 - used[v];
						q.push(to);
					}
					else if (used[to] == used[v]) ok = 0;
				}
			}
		}
	}
	return (!ok ? "YES" : "NO");
}

void solve () {
	cin >> n >> m >> Q;
	for (int i = 1; i <= m; i++) {
		int x, y;
		cin >> x >> y;
		edge[i] = {x, y, i};
	}
	while (Q--) {
		int l, r;
		cin >> l >> r;
		cout << get(l, r) << '\n';
	}
	cout << '\n';
}

bool testcases = 0;

signed main() {
#ifdef AMIR
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
#endif
	cin.tie(0) -> sync_with_stdio(0);
	int test = 1;
	if (testcases) cin >> test;
	for (int cs = 1; cs <= test; cs++) {
		solve();
	}
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	26968 KB	Output is correct
2	Correct	7 ms	26972 KB	Output is correct
3	Correct	7 ms	26972 KB	Output is correct
4	Correct	7 ms	27112 KB	Output is correct
5	Correct	9 ms	27224 KB	Output is correct
6	Correct	7 ms	26972 KB	Output is correct
7	Correct	8 ms	26972 KB	Output is correct
8	Correct	8 ms	26972 KB	Output is correct
9	Correct	8 ms	27084 KB	Output is correct
10	Correct	8 ms	26972 KB	Output is correct
11	Correct	8 ms	26972 KB	Output is correct
12	Correct	9 ms	26972 KB	Output is correct
13	Correct	8 ms	26972 KB	Output is correct
14	Correct	8 ms	26968 KB	Output is correct
15	Correct	8 ms	26972 KB	Output is correct
16	Correct	8 ms	27120 KB	Output is correct
17	Correct	8 ms	26972 KB	Output is correct
18	Correct	8 ms	27072 KB	Output is correct
19	Correct	8 ms	26972 KB	Output is correct
20	Correct	8 ms	26972 KB	Output is correct
21	Correct	8 ms	26972 KB	Output is correct
22	Correct	8 ms	26972 KB	Output is correct
23	Correct	7 ms	26972 KB	Output is correct
24	Correct	8 ms	27080 KB	Output is correct
25	Correct	9 ms	27100 KB	Output is correct
26	Correct	8 ms	27220 KB	Output is correct
27	Correct	8 ms	26972 KB	Output is correct
28	Correct	9 ms	26968 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	26968 KB	Output is correct
2	Correct	7 ms	26972 KB	Output is correct
3	Correct	7 ms	26972 KB	Output is correct
4	Correct	7 ms	27112 KB	Output is correct
5	Correct	9 ms	27224 KB	Output is correct
6	Correct	7 ms	26972 KB	Output is correct
7	Correct	8 ms	26972 KB	Output is correct
8	Correct	8 ms	26972 KB	Output is correct
9	Correct	8 ms	27084 KB	Output is correct
10	Correct	8 ms	26972 KB	Output is correct
11	Correct	8 ms	26972 KB	Output is correct
12	Correct	9 ms	26972 KB	Output is correct
13	Correct	8 ms	26972 KB	Output is correct
14	Correct	8 ms	26968 KB	Output is correct
15	Correct	8 ms	26972 KB	Output is correct
16	Correct	8 ms	27120 KB	Output is correct
17	Correct	8 ms	26972 KB	Output is correct
18	Correct	8 ms	27072 KB	Output is correct
19	Correct	8 ms	26972 KB	Output is correct
20	Correct	8 ms	26972 KB	Output is correct
21	Correct	8 ms	26972 KB	Output is correct
22	Correct	8 ms	26972 KB	Output is correct
23	Correct	7 ms	26972 KB	Output is correct
24	Correct	8 ms	27080 KB	Output is correct
25	Correct	9 ms	27100 KB	Output is correct
26	Correct	8 ms	27220 KB	Output is correct
27	Correct	8 ms	26972 KB	Output is correct
28	Correct	9 ms	26968 KB	Output is correct
29	Correct	56 ms	27160 KB	Output is correct
30	Correct	94 ms	26972 KB	Output is correct
31	Correct	83 ms	26972 KB	Output is correct
32	Correct	63 ms	27184 KB	Output is correct
33	Correct	46 ms	26972 KB	Output is correct
34	Correct	94 ms	27176 KB	Output is correct
35	Correct	98 ms	27172 KB	Output is correct
36	Correct	39 ms	27224 KB	Output is correct
37	Correct	71 ms	26972 KB	Output is correct
38	Correct	56 ms	26972 KB	Output is correct
39	Correct	71 ms	26968 KB	Output is correct
40	Correct	59 ms	26968 KB	Output is correct
41	Correct	55 ms	26972 KB	Output is correct
42	Correct	55 ms	27160 KB	Output is correct
43	Correct	40 ms	26972 KB	Output is correct
44	Correct	49 ms	26972 KB	Output is correct
45	Correct	64 ms	26972 KB	Output is correct
46	Correct	72 ms	27172 KB	Output is correct
47	Correct	49 ms	26972 KB	Output is correct
48	Correct	58 ms	27180 KB	Output is correct
49	Correct	69 ms	26968 KB	Output is correct
50	Correct	89 ms	27172 KB	Output is correct
51	Correct	51 ms	26968 KB	Output is correct
52	Correct	63 ms	26968 KB	Output is correct
53	Correct	75 ms	26968 KB	Output is correct
54	Correct	95 ms	27184 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	26968 KB	Output is correct
2	Correct	7 ms	26972 KB	Output is correct
3	Execution timed out	2024 ms	34492 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	26968 KB	Output is correct
2	Correct	7 ms	26972 KB	Output is correct
3	Correct	7 ms	26972 KB	Output is correct
4	Correct	7 ms	27112 KB	Output is correct
5	Correct	9 ms	27224 KB	Output is correct
6	Correct	7 ms	26972 KB	Output is correct
7	Correct	8 ms	26972 KB	Output is correct
8	Correct	8 ms	26972 KB	Output is correct
9	Correct	8 ms	27084 KB	Output is correct
10	Correct	8 ms	26972 KB	Output is correct
11	Correct	8 ms	26972 KB	Output is correct
12	Correct	9 ms	26972 KB	Output is correct
13	Correct	8 ms	26972 KB	Output is correct
14	Correct	8 ms	26968 KB	Output is correct
15	Correct	8 ms	26972 KB	Output is correct
16	Correct	8 ms	27120 KB	Output is correct
17	Correct	8 ms	26972 KB	Output is correct
18	Correct	8 ms	27072 KB	Output is correct
19	Correct	8 ms	26972 KB	Output is correct
20	Correct	8 ms	26972 KB	Output is correct
21	Correct	8 ms	26972 KB	Output is correct
22	Correct	8 ms	26972 KB	Output is correct
23	Correct	7 ms	26972 KB	Output is correct
24	Correct	8 ms	27080 KB	Output is correct
25	Correct	9 ms	27100 KB	Output is correct
26	Correct	8 ms	27220 KB	Output is correct
27	Correct	8 ms	26972 KB	Output is correct
28	Correct	9 ms	26968 KB	Output is correct
29	Execution timed out	2024 ms	34492 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	26968 KB	Output is correct
2	Correct	7 ms	26972 KB	Output is correct
3	Correct	7 ms	26972 KB	Output is correct
4	Correct	7 ms	27112 KB	Output is correct
5	Correct	9 ms	27224 KB	Output is correct
6	Correct	7 ms	26972 KB	Output is correct
7	Correct	8 ms	26972 KB	Output is correct
8	Correct	8 ms	26972 KB	Output is correct
9	Correct	8 ms	27084 KB	Output is correct
10	Correct	8 ms	26972 KB	Output is correct
11	Correct	8 ms	26972 KB	Output is correct
12	Correct	9 ms	26972 KB	Output is correct
13	Correct	8 ms	26972 KB	Output is correct
14	Correct	8 ms	26968 KB	Output is correct
15	Correct	8 ms	26972 KB	Output is correct
16	Correct	8 ms	27120 KB	Output is correct
17	Correct	8 ms	26972 KB	Output is correct
18	Correct	8 ms	27072 KB	Output is correct
19	Correct	8 ms	26972 KB	Output is correct
20	Correct	8 ms	26972 KB	Output is correct
21	Correct	8 ms	26972 KB	Output is correct
22	Correct	8 ms	26972 KB	Output is correct
23	Correct	7 ms	26972 KB	Output is correct
24	Correct	8 ms	27080 KB	Output is correct
25	Correct	9 ms	27100 KB	Output is correct
26	Correct	8 ms	27220 KB	Output is correct
27	Correct	8 ms	26972 KB	Output is correct
28	Correct	9 ms	26968 KB	Output is correct
29	Correct	56 ms	27160 KB	Output is correct
30	Correct	94 ms	26972 KB	Output is correct
31	Correct	83 ms	26972 KB	Output is correct
32	Correct	63 ms	27184 KB	Output is correct
33	Correct	46 ms	26972 KB	Output is correct
34	Correct	94 ms	27176 KB	Output is correct
35	Correct	98 ms	27172 KB	Output is correct
36	Correct	39 ms	27224 KB	Output is correct
37	Correct	71 ms	26972 KB	Output is correct
38	Correct	56 ms	26972 KB	Output is correct
39	Correct	71 ms	26968 KB	Output is correct
40	Correct	59 ms	26968 KB	Output is correct
41	Correct	55 ms	26972 KB	Output is correct
42	Correct	55 ms	27160 KB	Output is correct
43	Correct	40 ms	26972 KB	Output is correct
44	Correct	49 ms	26972 KB	Output is correct
45	Correct	64 ms	26972 KB	Output is correct
46	Correct	72 ms	27172 KB	Output is correct
47	Correct	49 ms	26972 KB	Output is correct
48	Correct	58 ms	27180 KB	Output is correct
49	Correct	69 ms	26968 KB	Output is correct
50	Correct	89 ms	27172 KB	Output is correct
51	Correct	51 ms	26968 KB	Output is correct
52	Correct	63 ms	26968 KB	Output is correct
53	Correct	75 ms	26968 KB	Output is correct
54	Correct	95 ms	27184 KB	Output is correct
55	Execution timed out	2055 ms	34504 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	26968 KB	Output is correct
2	Correct	7 ms	26972 KB	Output is correct
3	Correct	7 ms	26972 KB	Output is correct
4	Correct	7 ms	27112 KB	Output is correct
5	Correct	9 ms	27224 KB	Output is correct
6	Correct	7 ms	26972 KB	Output is correct
7	Correct	8 ms	26972 KB	Output is correct
8	Correct	8 ms	26972 KB	Output is correct
9	Correct	8 ms	27084 KB	Output is correct
10	Correct	8 ms	26972 KB	Output is correct
11	Correct	8 ms	26972 KB	Output is correct
12	Correct	9 ms	26972 KB	Output is correct
13	Correct	8 ms	26972 KB	Output is correct
14	Correct	8 ms	26968 KB	Output is correct
15	Correct	8 ms	26972 KB	Output is correct
16	Correct	8 ms	27120 KB	Output is correct
17	Correct	8 ms	26972 KB	Output is correct
18	Correct	8 ms	27072 KB	Output is correct
19	Correct	8 ms	26972 KB	Output is correct
20	Correct	8 ms	26972 KB	Output is correct
21	Correct	8 ms	26972 KB	Output is correct
22	Correct	8 ms	26972 KB	Output is correct
23	Correct	7 ms	26972 KB	Output is correct
24	Correct	8 ms	27080 KB	Output is correct
25	Correct	9 ms	27100 KB	Output is correct
26	Correct	8 ms	27220 KB	Output is correct
27	Correct	8 ms	26972 KB	Output is correct
28	Correct	9 ms	26968 KB	Output is correct
29	Correct	56 ms	27160 KB	Output is correct
30	Correct	94 ms	26972 KB	Output is correct
31	Correct	83 ms	26972 KB	Output is correct
32	Correct	63 ms	27184 KB	Output is correct
33	Correct	46 ms	26972 KB	Output is correct
34	Correct	94 ms	27176 KB	Output is correct
35	Correct	98 ms	27172 KB	Output is correct
36	Correct	39 ms	27224 KB	Output is correct
37	Correct	71 ms	26972 KB	Output is correct
38	Correct	56 ms	26972 KB	Output is correct
39	Correct	71 ms	26968 KB	Output is correct
40	Correct	59 ms	26968 KB	Output is correct
41	Correct	55 ms	26972 KB	Output is correct
42	Correct	55 ms	27160 KB	Output is correct
43	Correct	40 ms	26972 KB	Output is correct
44	Correct	49 ms	26972 KB	Output is correct
45	Correct	64 ms	26972 KB	Output is correct
46	Correct	72 ms	27172 KB	Output is correct
47	Correct	49 ms	26972 KB	Output is correct
48	Correct	58 ms	27180 KB	Output is correct
49	Correct	69 ms	26968 KB	Output is correct
50	Correct	89 ms	27172 KB	Output is correct
51	Correct	51 ms	26968 KB	Output is correct
52	Correct	63 ms	26968 KB	Output is correct
53	Correct	75 ms	26968 KB	Output is correct
54	Correct	95 ms	27184 KB	Output is correct
55	Execution timed out	2024 ms	34492 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

답안 #925654

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 25.0

Subtask #4 0 / 10.0

Subtask #5 0 / 22.0

Subtask #6 0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
8.0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
0 / 10.0

Subtask #5
0 / 22.0

Subtask #6
0 / 29.0