답안 #925867

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
925867	2024-02-12T10:15:09 Z	vjudge1	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	11736 KB

Joker

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")

#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
     
vector<pii> rid = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
vector<pii> dir = {{-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
 
const int N = 4e5 + 1, mod = 998244353;

const ll inf = 1e9;
 
double eps = 1e-15;
                                                
bool flg = 0;

const int k = 500;

bool ok = 1, was[N];
vector<pii> g(N);

int p[N + 1], pr[N];
int sz[N + 1], pt[N + 1];
vector<array<int, 2>> h;

pii get(int x) {
 	if (p[x] == x) return {x, 0};
 	pii val = get(p[x]);
 	return {val.f, (pr[x] + val.s) % 2};
}

void add(int id) {
	int u = g[id].f;
	int v = g[id].s;
	pii x = get(u);
	pii y = get(v);
	if (x.f == y.f) {
		if (x.s == y.s) {
			if (ok) {
			    h.push_back({-1, -1});
				ok = 0;
			}    
		}
		return;
	}
	if (sz[x.f] > sz[y.f]) swap(x, y);
	h.push_back({x.f, sz[x.f]});
	h.push_back({y.f, sz[y.f]});
	p[x.f] = y.f;
	pr[x.f] = (x.s + y.s + 1) % 2;  	
	sz[y.f] += sz[x.f];
}

void rb() {
	while (sz(h) && !pt[sz(h)]) {
		array<int, 2> x = h.back();
		h.pop_back();
		if (x[0] == -1) {
			ok = 1;
			continue;
		}
		p[x[0]] = x[0];
		pr[x[0]] = 0;
		sz[x[0]] = x[1];
	}
	pt[sz(h)] = 0; 
}

bool slave(int l, int r) {
	for (int i = l; i <= r; i++) add(i);
	bool vv = ok;
	rb();
	return vv;	
}

bool cmp(array<int, 3> a, array<int, 3> b) {
	if (a[0] / k < b[0] / k) return 1;
	if (a[0] / k == b[0] / k && a[1] < b[1]) return 1;
	return 0;
}

void slv() {
	int n, m, q;
	cin >> n >> m >> q;
	//if (max({n, m, q}) >= 200) return;
	for (int i = 1; i <= m; i++) {
		int u, v;
		cin >> u >> v;
		g[i] = g[i + m] = {u, v};
	}
	for (int i = 1; i <= n; i++) 
		p[i] = i, sz[i] = 1;
	//vector<array<int, 3>> qr;
	bool ans[q + 1];
	for (int i = 1; i <= q; i++) {
		int l, r;
		cin >> l >> r;
		int tl = r + 1, tr = l + m - 1;
		if (slave(tl, tr)) cout << "NO\n";
		else cout << "YES\n";
		rb();
		continue;
		//if (tl / k == tr / k) 
		//	ans[i] = slave(tl, tr);
		//else qr.push_back({tl, tr, i});
	}
	return;
	/*sort(all(qr), cmp);
	int tr = 0, lst = -1, pos;
	for (auto [l, r, id]: qr) {
		cout << 5 / 0;
		if (l / k != lst) {
			rb();
			lst = l / k;
			pos = (lst + 1) * k - 1;
			tr = pos;
		}
		while (tr < r) 
			add(++tr);
		pt[sz(h)] = 1;
		for (int i = pos; i >= l; i--) 
			add(i);
		ans[id] = ok;
		rb();
		
	}
	for (int i = 1; i <= q; i++) {
		if (ans[i]) cout << "NO\n";
		else cout << "YES\n";
	}*/
}                                                                           
 
main() {
	//freopen("rsq.in", "r", stdin);                                                                                     
	//freopen("rsq.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(0);	                                                                                       
	cin.tie(0);
	int tp = 1;
	if (flg) cin >> tp;
	while (tp--) {  	
		slv();
	}
}
//wenomechainsama

Compilation message

Joker.cpp: In function 'void slv()':
Joker.cpp:108:7: warning: unused variable 'ans' [-Wunused-variable]
  108 |  bool ans[q + 1];
      |       ^~~
Joker.cpp: At global scope:
Joker.cpp:147:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  147 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	7516 KB	Output is correct
2	Correct	2 ms	7516 KB	Output is correct
3	Correct	3 ms	9564 KB	Output is correct
4	Correct	2 ms	9564 KB	Output is correct
5	Correct	2 ms	9560 KB	Output is correct
6	Correct	3 ms	9564 KB	Output is correct
7	Correct	3 ms	9564 KB	Output is correct
8	Correct	3 ms	9564 KB	Output is correct
9	Correct	3 ms	9564 KB	Output is correct
10	Correct	3 ms	9564 KB	Output is correct
11	Correct	2 ms	9564 KB	Output is correct
12	Correct	3 ms	9564 KB	Output is correct
13	Correct	2 ms	9564 KB	Output is correct
14	Correct	3 ms	9564 KB	Output is correct
15	Correct	3 ms	9564 KB	Output is correct
16	Correct	3 ms	9560 KB	Output is correct
17	Correct	2 ms	9564 KB	Output is correct
18	Correct	2 ms	9564 KB	Output is correct
19	Correct	2 ms	9564 KB	Output is correct
20	Correct	3 ms	9564 KB	Output is correct
21	Correct	4 ms	9772 KB	Output is correct
22	Correct	4 ms	9816 KB	Output is correct
23	Correct	3 ms	9560 KB	Output is correct
24	Correct	2 ms	9564 KB	Output is correct
25	Correct	3 ms	9560 KB	Output is correct
26	Correct	2 ms	9564 KB	Output is correct
27	Correct	2 ms	9564 KB	Output is correct
28	Correct	3 ms	9564 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	7516 KB	Output is correct
2	Correct	2 ms	7516 KB	Output is correct
3	Correct	3 ms	9564 KB	Output is correct
4	Correct	2 ms	9564 KB	Output is correct
5	Correct	2 ms	9560 KB	Output is correct
6	Correct	3 ms	9564 KB	Output is correct
7	Correct	3 ms	9564 KB	Output is correct
8	Correct	3 ms	9564 KB	Output is correct
9	Correct	3 ms	9564 KB	Output is correct
10	Correct	3 ms	9564 KB	Output is correct
11	Correct	2 ms	9564 KB	Output is correct
12	Correct	3 ms	9564 KB	Output is correct
13	Correct	2 ms	9564 KB	Output is correct
14	Correct	3 ms	9564 KB	Output is correct
15	Correct	3 ms	9564 KB	Output is correct
16	Correct	3 ms	9560 KB	Output is correct
17	Correct	2 ms	9564 KB	Output is correct
18	Correct	2 ms	9564 KB	Output is correct
19	Correct	2 ms	9564 KB	Output is correct
20	Correct	3 ms	9564 KB	Output is correct
21	Correct	4 ms	9772 KB	Output is correct
22	Correct	4 ms	9816 KB	Output is correct
23	Correct	3 ms	9560 KB	Output is correct
24	Correct	2 ms	9564 KB	Output is correct
25	Correct	3 ms	9560 KB	Output is correct
26	Correct	2 ms	9564 KB	Output is correct
27	Correct	2 ms	9564 KB	Output is correct
28	Correct	3 ms	9564 KB	Output is correct
29	Correct	40 ms	9560 KB	Output is correct
30	Correct	57 ms	9820 KB	Output is correct
31	Correct	62 ms	9820 KB	Output is correct
32	Correct	56 ms	9564 KB	Output is correct
33	Correct	56 ms	9796 KB	Output is correct
34	Correct	59 ms	9820 KB	Output is correct
35	Correct	64 ms	9816 KB	Output is correct
36	Correct	40 ms	9564 KB	Output is correct
37	Correct	67 ms	10072 KB	Output is correct
38	Correct	79 ms	9820 KB	Output is correct
39	Correct	48 ms	9820 KB	Output is correct
40	Correct	47 ms	9800 KB	Output is correct
41	Correct	47 ms	9564 KB	Output is correct
42	Correct	49 ms	9564 KB	Output is correct
43	Correct	99 ms	9564 KB	Output is correct
44	Correct	102 ms	9564 KB	Output is correct
45	Correct	105 ms	9816 KB	Output is correct
46	Correct	106 ms	9820 KB	Output is correct
47	Correct	46 ms	9564 KB	Output is correct
48	Correct	52 ms	9560 KB	Output is correct
49	Correct	58 ms	9816 KB	Output is correct
50	Correct	58 ms	9816 KB	Output is correct
51	Correct	54 ms	9564 KB	Output is correct
52	Correct	60 ms	9560 KB	Output is correct
53	Correct	60 ms	9652 KB	Output is correct
54	Correct	68 ms	9820 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	7516 KB	Output is correct
2	Correct	2 ms	7516 KB	Output is correct
3	Execution timed out	2024 ms	11732 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	7516 KB	Output is correct
2	Correct	2 ms	7516 KB	Output is correct
3	Correct	3 ms	9564 KB	Output is correct
4	Correct	2 ms	9564 KB	Output is correct
5	Correct	2 ms	9560 KB	Output is correct
6	Correct	3 ms	9564 KB	Output is correct
7	Correct	3 ms	9564 KB	Output is correct
8	Correct	3 ms	9564 KB	Output is correct
9	Correct	3 ms	9564 KB	Output is correct
10	Correct	3 ms	9564 KB	Output is correct
11	Correct	2 ms	9564 KB	Output is correct
12	Correct	3 ms	9564 KB	Output is correct
13	Correct	2 ms	9564 KB	Output is correct
14	Correct	3 ms	9564 KB	Output is correct
15	Correct	3 ms	9564 KB	Output is correct
16	Correct	3 ms	9560 KB	Output is correct
17	Correct	2 ms	9564 KB	Output is correct
18	Correct	2 ms	9564 KB	Output is correct
19	Correct	2 ms	9564 KB	Output is correct
20	Correct	3 ms	9564 KB	Output is correct
21	Correct	4 ms	9772 KB	Output is correct
22	Correct	4 ms	9816 KB	Output is correct
23	Correct	3 ms	9560 KB	Output is correct
24	Correct	2 ms	9564 KB	Output is correct
25	Correct	3 ms	9560 KB	Output is correct
26	Correct	2 ms	9564 KB	Output is correct
27	Correct	2 ms	9564 KB	Output is correct
28	Correct	3 ms	9564 KB	Output is correct
29	Execution timed out	2024 ms	11732 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	7516 KB	Output is correct
2	Correct	2 ms	7516 KB	Output is correct
3	Correct	3 ms	9564 KB	Output is correct
4	Correct	2 ms	9564 KB	Output is correct
5	Correct	2 ms	9560 KB	Output is correct
6	Correct	3 ms	9564 KB	Output is correct
7	Correct	3 ms	9564 KB	Output is correct
8	Correct	3 ms	9564 KB	Output is correct
9	Correct	3 ms	9564 KB	Output is correct
10	Correct	3 ms	9564 KB	Output is correct
11	Correct	2 ms	9564 KB	Output is correct
12	Correct	3 ms	9564 KB	Output is correct
13	Correct	2 ms	9564 KB	Output is correct
14	Correct	3 ms	9564 KB	Output is correct
15	Correct	3 ms	9564 KB	Output is correct
16	Correct	3 ms	9560 KB	Output is correct
17	Correct	2 ms	9564 KB	Output is correct
18	Correct	2 ms	9564 KB	Output is correct
19	Correct	2 ms	9564 KB	Output is correct
20	Correct	3 ms	9564 KB	Output is correct
21	Correct	4 ms	9772 KB	Output is correct
22	Correct	4 ms	9816 KB	Output is correct
23	Correct	3 ms	9560 KB	Output is correct
24	Correct	2 ms	9564 KB	Output is correct
25	Correct	3 ms	9560 KB	Output is correct
26	Correct	2 ms	9564 KB	Output is correct
27	Correct	2 ms	9564 KB	Output is correct
28	Correct	3 ms	9564 KB	Output is correct
29	Correct	40 ms	9560 KB	Output is correct
30	Correct	57 ms	9820 KB	Output is correct
31	Correct	62 ms	9820 KB	Output is correct
32	Correct	56 ms	9564 KB	Output is correct
33	Correct	56 ms	9796 KB	Output is correct
34	Correct	59 ms	9820 KB	Output is correct
35	Correct	64 ms	9816 KB	Output is correct
36	Correct	40 ms	9564 KB	Output is correct
37	Correct	67 ms	10072 KB	Output is correct
38	Correct	79 ms	9820 KB	Output is correct
39	Correct	48 ms	9820 KB	Output is correct
40	Correct	47 ms	9800 KB	Output is correct
41	Correct	47 ms	9564 KB	Output is correct
42	Correct	49 ms	9564 KB	Output is correct
43	Correct	99 ms	9564 KB	Output is correct
44	Correct	102 ms	9564 KB	Output is correct
45	Correct	105 ms	9816 KB	Output is correct
46	Correct	106 ms	9820 KB	Output is correct
47	Correct	46 ms	9564 KB	Output is correct
48	Correct	52 ms	9560 KB	Output is correct
49	Correct	58 ms	9816 KB	Output is correct
50	Correct	58 ms	9816 KB	Output is correct
51	Correct	54 ms	9564 KB	Output is correct
52	Correct	60 ms	9560 KB	Output is correct
53	Correct	60 ms	9652 KB	Output is correct
54	Correct	68 ms	9820 KB	Output is correct
55	Execution timed out	2039 ms	11736 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	7516 KB	Output is correct
2	Correct	2 ms	7516 KB	Output is correct
3	Correct	3 ms	9564 KB	Output is correct
4	Correct	2 ms	9564 KB	Output is correct
5	Correct	2 ms	9560 KB	Output is correct
6	Correct	3 ms	9564 KB	Output is correct
7	Correct	3 ms	9564 KB	Output is correct
8	Correct	3 ms	9564 KB	Output is correct
9	Correct	3 ms	9564 KB	Output is correct
10	Correct	3 ms	9564 KB	Output is correct
11	Correct	2 ms	9564 KB	Output is correct
12	Correct	3 ms	9564 KB	Output is correct
13	Correct	2 ms	9564 KB	Output is correct
14	Correct	3 ms	9564 KB	Output is correct
15	Correct	3 ms	9564 KB	Output is correct
16	Correct	3 ms	9560 KB	Output is correct
17	Correct	2 ms	9564 KB	Output is correct
18	Correct	2 ms	9564 KB	Output is correct
19	Correct	2 ms	9564 KB	Output is correct
20	Correct	3 ms	9564 KB	Output is correct
21	Correct	4 ms	9772 KB	Output is correct
22	Correct	4 ms	9816 KB	Output is correct
23	Correct	3 ms	9560 KB	Output is correct
24	Correct	2 ms	9564 KB	Output is correct
25	Correct	3 ms	9560 KB	Output is correct
26	Correct	2 ms	9564 KB	Output is correct
27	Correct	2 ms	9564 KB	Output is correct
28	Correct	3 ms	9564 KB	Output is correct
29	Correct	40 ms	9560 KB	Output is correct
30	Correct	57 ms	9820 KB	Output is correct
31	Correct	62 ms	9820 KB	Output is correct
32	Correct	56 ms	9564 KB	Output is correct
33	Correct	56 ms	9796 KB	Output is correct
34	Correct	59 ms	9820 KB	Output is correct
35	Correct	64 ms	9816 KB	Output is correct
36	Correct	40 ms	9564 KB	Output is correct
37	Correct	67 ms	10072 KB	Output is correct
38	Correct	79 ms	9820 KB	Output is correct
39	Correct	48 ms	9820 KB	Output is correct
40	Correct	47 ms	9800 KB	Output is correct
41	Correct	47 ms	9564 KB	Output is correct
42	Correct	49 ms	9564 KB	Output is correct
43	Correct	99 ms	9564 KB	Output is correct
44	Correct	102 ms	9564 KB	Output is correct
45	Correct	105 ms	9816 KB	Output is correct
46	Correct	106 ms	9820 KB	Output is correct
47	Correct	46 ms	9564 KB	Output is correct
48	Correct	52 ms	9560 KB	Output is correct
49	Correct	58 ms	9816 KB	Output is correct
50	Correct	58 ms	9816 KB	Output is correct
51	Correct	54 ms	9564 KB	Output is correct
52	Correct	60 ms	9560 KB	Output is correct
53	Correct	60 ms	9652 KB	Output is correct
54	Correct	68 ms	9820 KB	Output is correct
55	Execution timed out	2024 ms	11732 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

답안 #925867

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