Submission #926747

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
926747	2024-02-13T15:43:45 Z	vjudge1	Joker (BOI20_joker)	C++17	100 / 100	201 ms	28724 KB

Joker

#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
//#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 = 1e6 + 1, mod = 998244353;
 
const ll inf = 1e9;
 
double eps = 1e-15;
                                                
bool flg = 0;
 
bool ok = 1, was[N];
vector<pii> g(N);
 
int p[N], pr[N];
int sz[N], pt[N];
vector<pii> h;
 
pii get(int x) {
 	if (p[x] == x) return {x, 0};
 	pii val = get(p[x]);
 	return {val.f, ((pr[x] + val.s) & 1)};
}
 
inline void add(int id) {
	int u = g[id].f;
	int v = g[id].s;
	if (u == -1) return;
	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) & 1);  	
	sz[y.f] += sz[x.f];
}
 
inline void rb() {
	while (sz(h) && !pt[sz(h)]) {
		pii x = h.back();
		h.pop_back();
		if (x.f == -1) {
			ok = 1;
			continue;
		}
		p[x.f] = x.f;
		pr[x.f] = 0;
		sz[x.f] = x.s;
	}
	pt[sz(h)]--; 
}
 
int ps[N];
 
void f(int l, int r, int tr) {
	if (l > r) return;
	int m = (l + r) / 2;
	pt[sz(h)]++;
	for (int i = m - 1; i >= l; i--) 
		add(i);
	pt[sz(h)]++;
	for (int i = tr; i >= m; i--) {
		add(i);
		if (!ok) {
			ps[m] = i;
			break;
		}
	}
	rb();
	add(m);
	f(m + 1, r, tr);
	rb();
	if (!ps[m]) return;
	pt[sz(h)]++;
	for (int i = tr; i > ps[m]; i--)
		add(i);
	f(l, m - 1, ps[m]);
	rb();
}
 
void slv() {
	int n, m, q;
	cin >> n >> m >> q;
	for (int i = 1; i <= m; i++) {
		int u, v;
		cin >> u >> v;
		g[i] = {u, v};
	}
	g[m + 1] = {-1, -1};
	for (int i = 1; i <= n; i++) 
		p[i] = i, sz[i] = 1;
	f(1, m, m + 1);
	for (int i = 1; i <= q; i++) {
		int l, r;
		cin >> l >> r;
		l = max(l, 1);
		r = min(r, m);
		if (ps[l] > r) cout << "YES\n";
		else cout << "NO\n";
	}
}                                                                           
 
main() {                                                                                 
	ios_base::sync_with_stdio(0);	                                                                                       
	cin.tie(0);
	int tp = 1;
	if (flg) cin >> tp;
	while (tp--) {  	
		slv();
	}
}

Compilation message

Joker.cpp:132:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  132 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	16472 KB	Output is correct
2	Correct	3 ms	16472 KB	Output is correct
3	Correct	3 ms	16476 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	3 ms	16476 KB	Output is correct
7	Correct	4 ms	16524 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	4 ms	16728 KB	Output is correct
10	Correct	4 ms	16476 KB	Output is correct
11	Correct	3 ms	16476 KB	Output is correct
12	Correct	4 ms	16476 KB	Output is correct
13	Correct	4 ms	16476 KB	Output is correct
14	Correct	3 ms	16476 KB	Output is correct
15	Correct	4 ms	16476 KB	Output is correct
16	Correct	3 ms	16476 KB	Output is correct
17	Correct	3 ms	16476 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	3 ms	16476 KB	Output is correct
20	Correct	3 ms	16472 KB	Output is correct
21	Correct	3 ms	16516 KB	Output is correct
22	Correct	3 ms	16476 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16376 KB	Output is correct
25	Correct	3 ms	16472 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	3 ms	16476 KB	Output is correct
28	Correct	3 ms	16472 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	16472 KB	Output is correct
2	Correct	3 ms	16472 KB	Output is correct
3	Correct	3 ms	16476 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	3 ms	16476 KB	Output is correct
7	Correct	4 ms	16524 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	4 ms	16728 KB	Output is correct
10	Correct	4 ms	16476 KB	Output is correct
11	Correct	3 ms	16476 KB	Output is correct
12	Correct	4 ms	16476 KB	Output is correct
13	Correct	4 ms	16476 KB	Output is correct
14	Correct	3 ms	16476 KB	Output is correct
15	Correct	4 ms	16476 KB	Output is correct
16	Correct	3 ms	16476 KB	Output is correct
17	Correct	3 ms	16476 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	3 ms	16476 KB	Output is correct
20	Correct	3 ms	16472 KB	Output is correct
21	Correct	3 ms	16516 KB	Output is correct
22	Correct	3 ms	16476 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16376 KB	Output is correct
25	Correct	3 ms	16472 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	3 ms	16476 KB	Output is correct
28	Correct	3 ms	16472 KB	Output is correct
29	Correct	3 ms	16476 KB	Output is correct
30	Correct	4 ms	16476 KB	Output is correct
31	Correct	4 ms	16476 KB	Output is correct
32	Correct	4 ms	16476 KB	Output is correct
33	Correct	4 ms	16476 KB	Output is correct
34	Correct	6 ms	16476 KB	Output is correct
35	Correct	4 ms	16476 KB	Output is correct
36	Correct	4 ms	16476 KB	Output is correct
37	Correct	4 ms	16476 KB	Output is correct
38	Correct	4 ms	16476 KB	Output is correct
39	Correct	4 ms	16476 KB	Output is correct
40	Correct	4 ms	16476 KB	Output is correct
41	Correct	4 ms	16476 KB	Output is correct
42	Correct	4 ms	16476 KB	Output is correct
43	Correct	5 ms	16476 KB	Output is correct
44	Correct	4 ms	16416 KB	Output is correct
45	Correct	4 ms	16476 KB	Output is correct
46	Correct	5 ms	16476 KB	Output is correct
47	Correct	4 ms	16476 KB	Output is correct
48	Correct	4 ms	16520 KB	Output is correct
49	Correct	4 ms	16476 KB	Output is correct
50	Correct	4 ms	16476 KB	Output is correct
51	Correct	5 ms	16476 KB	Output is correct
52	Correct	4 ms	16476 KB	Output is correct
53	Correct	4 ms	16476 KB	Output is correct
54	Correct	5 ms	16476 KB	Output is correct

Subtask #3
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	16472 KB	Output is correct
2	Correct	3 ms	16472 KB	Output is correct
3	Correct	121 ms	20888 KB	Output is correct
4	Correct	63 ms	26580 KB	Output is correct
5	Correct	119 ms	26060 KB	Output is correct
6	Correct	116 ms	21452 KB	Output is correct
7	Correct	132 ms	21448 KB	Output is correct
8	Correct	131 ms	20948 KB	Output is correct
9	Correct	143 ms	21444 KB	Output is correct
10	Correct	190 ms	28620 KB	Output is correct
11	Correct	153 ms	21328 KB	Output is correct
12	Correct	155 ms	25808 KB	Output is correct
13	Correct	136 ms	19768 KB	Output is correct
14	Correct	128 ms	20408 KB	Output is correct
15	Correct	173 ms	24016 KB	Output is correct
16	Correct	189 ms	28364 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	16472 KB	Output is correct
2	Correct	3 ms	16472 KB	Output is correct
3	Correct	3 ms	16476 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	3 ms	16476 KB	Output is correct
7	Correct	4 ms	16524 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	4 ms	16728 KB	Output is correct
10	Correct	4 ms	16476 KB	Output is correct
11	Correct	3 ms	16476 KB	Output is correct
12	Correct	4 ms	16476 KB	Output is correct
13	Correct	4 ms	16476 KB	Output is correct
14	Correct	3 ms	16476 KB	Output is correct
15	Correct	4 ms	16476 KB	Output is correct
16	Correct	3 ms	16476 KB	Output is correct
17	Correct	3 ms	16476 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	3 ms	16476 KB	Output is correct
20	Correct	3 ms	16472 KB	Output is correct
21	Correct	3 ms	16516 KB	Output is correct
22	Correct	3 ms	16476 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16376 KB	Output is correct
25	Correct	3 ms	16472 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	3 ms	16476 KB	Output is correct
28	Correct	3 ms	16472 KB	Output is correct
29	Correct	121 ms	20888 KB	Output is correct
30	Correct	63 ms	26580 KB	Output is correct
31	Correct	119 ms	26060 KB	Output is correct
32	Correct	116 ms	21452 KB	Output is correct
33	Correct	132 ms	21448 KB	Output is correct
34	Correct	131 ms	20948 KB	Output is correct
35	Correct	143 ms	21444 KB	Output is correct
36	Correct	190 ms	28620 KB	Output is correct
37	Correct	153 ms	21328 KB	Output is correct
38	Correct	155 ms	25808 KB	Output is correct
39	Correct	136 ms	19768 KB	Output is correct
40	Correct	128 ms	20408 KB	Output is correct
41	Correct	173 ms	24016 KB	Output is correct
42	Correct	189 ms	28364 KB	Output is correct
43	Correct	120 ms	21064 KB	Output is correct
44	Correct	67 ms	26860 KB	Output is correct
45	Correct	186 ms	27996 KB	Output is correct
46	Correct	114 ms	21452 KB	Output is correct
47	Correct	135 ms	21452 KB	Output is correct
48	Correct	153 ms	21488 KB	Output is correct
49	Correct	184 ms	28112 KB	Output is correct
50	Correct	144 ms	20980 KB	Output is correct
51	Correct	159 ms	24048 KB	Output is correct
52	Correct	160 ms	28724 KB	Output is correct
53	Correct	138 ms	19768 KB	Output is correct
54	Correct	160 ms	20936 KB	Output is correct
55	Correct	170 ms	23536 KB	Output is correct
56	Correct	201 ms	28108 KB	Output is correct

Subtask #5
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	16472 KB	Output is correct
2	Correct	3 ms	16472 KB	Output is correct
3	Correct	3 ms	16476 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	3 ms	16476 KB	Output is correct
7	Correct	4 ms	16524 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	4 ms	16728 KB	Output is correct
10	Correct	4 ms	16476 KB	Output is correct
11	Correct	3 ms	16476 KB	Output is correct
12	Correct	4 ms	16476 KB	Output is correct
13	Correct	4 ms	16476 KB	Output is correct
14	Correct	3 ms	16476 KB	Output is correct
15	Correct	4 ms	16476 KB	Output is correct
16	Correct	3 ms	16476 KB	Output is correct
17	Correct	3 ms	16476 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	3 ms	16476 KB	Output is correct
20	Correct	3 ms	16472 KB	Output is correct
21	Correct	3 ms	16516 KB	Output is correct
22	Correct	3 ms	16476 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16376 KB	Output is correct
25	Correct	3 ms	16472 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	3 ms	16476 KB	Output is correct
28	Correct	3 ms	16472 KB	Output is correct
29	Correct	3 ms	16476 KB	Output is correct
30	Correct	4 ms	16476 KB	Output is correct
31	Correct	4 ms	16476 KB	Output is correct
32	Correct	4 ms	16476 KB	Output is correct
33	Correct	4 ms	16476 KB	Output is correct
34	Correct	6 ms	16476 KB	Output is correct
35	Correct	4 ms	16476 KB	Output is correct
36	Correct	4 ms	16476 KB	Output is correct
37	Correct	4 ms	16476 KB	Output is correct
38	Correct	4 ms	16476 KB	Output is correct
39	Correct	4 ms	16476 KB	Output is correct
40	Correct	4 ms	16476 KB	Output is correct
41	Correct	4 ms	16476 KB	Output is correct
42	Correct	4 ms	16476 KB	Output is correct
43	Correct	5 ms	16476 KB	Output is correct
44	Correct	4 ms	16416 KB	Output is correct
45	Correct	4 ms	16476 KB	Output is correct
46	Correct	5 ms	16476 KB	Output is correct
47	Correct	4 ms	16476 KB	Output is correct
48	Correct	4 ms	16520 KB	Output is correct
49	Correct	4 ms	16476 KB	Output is correct
50	Correct	4 ms	16476 KB	Output is correct
51	Correct	5 ms	16476 KB	Output is correct
52	Correct	4 ms	16476 KB	Output is correct
53	Correct	4 ms	16476 KB	Output is correct
54	Correct	5 ms	16476 KB	Output is correct
55	Correct	94 ms	20428 KB	Output is correct
56	Correct	43 ms	26060 KB	Output is correct
57	Correct	95 ms	26568 KB	Output is correct
58	Correct	95 ms	20684 KB	Output is correct
59	Correct	139 ms	20684 KB	Output is correct
60	Correct	177 ms	25288 KB	Output is correct
61	Correct	136 ms	20680 KB	Output is correct
62	Correct	140 ms	25804 KB	Output is correct
63	Correct	103 ms	19404 KB	Output is correct
64	Correct	154 ms	21040 KB	Output is correct
65	Correct	160 ms	25808 KB	Output is correct

Subtask #6
29.0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	16472 KB	Output is correct
2	Correct	3 ms	16472 KB	Output is correct
3	Correct	3 ms	16476 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	3 ms	16476 KB	Output is correct
7	Correct	4 ms	16524 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	4 ms	16728 KB	Output is correct
10	Correct	4 ms	16476 KB	Output is correct
11	Correct	3 ms	16476 KB	Output is correct
12	Correct	4 ms	16476 KB	Output is correct
13	Correct	4 ms	16476 KB	Output is correct
14	Correct	3 ms	16476 KB	Output is correct
15	Correct	4 ms	16476 KB	Output is correct
16	Correct	3 ms	16476 KB	Output is correct
17	Correct	3 ms	16476 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	3 ms	16476 KB	Output is correct
20	Correct	3 ms	16472 KB	Output is correct
21	Correct	3 ms	16516 KB	Output is correct
22	Correct	3 ms	16476 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16376 KB	Output is correct
25	Correct	3 ms	16472 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	3 ms	16476 KB	Output is correct
28	Correct	3 ms	16472 KB	Output is correct
29	Correct	3 ms	16476 KB	Output is correct
30	Correct	4 ms	16476 KB	Output is correct
31	Correct	4 ms	16476 KB	Output is correct
32	Correct	4 ms	16476 KB	Output is correct
33	Correct	4 ms	16476 KB	Output is correct
34	Correct	6 ms	16476 KB	Output is correct
35	Correct	4 ms	16476 KB	Output is correct
36	Correct	4 ms	16476 KB	Output is correct
37	Correct	4 ms	16476 KB	Output is correct
38	Correct	4 ms	16476 KB	Output is correct
39	Correct	4 ms	16476 KB	Output is correct
40	Correct	4 ms	16476 KB	Output is correct
41	Correct	4 ms	16476 KB	Output is correct
42	Correct	4 ms	16476 KB	Output is correct
43	Correct	5 ms	16476 KB	Output is correct
44	Correct	4 ms	16416 KB	Output is correct
45	Correct	4 ms	16476 KB	Output is correct
46	Correct	5 ms	16476 KB	Output is correct
47	Correct	4 ms	16476 KB	Output is correct
48	Correct	4 ms	16520 KB	Output is correct
49	Correct	4 ms	16476 KB	Output is correct
50	Correct	4 ms	16476 KB	Output is correct
51	Correct	5 ms	16476 KB	Output is correct
52	Correct	4 ms	16476 KB	Output is correct
53	Correct	4 ms	16476 KB	Output is correct
54	Correct	5 ms	16476 KB	Output is correct
55	Correct	121 ms	20888 KB	Output is correct
56	Correct	63 ms	26580 KB	Output is correct
57	Correct	119 ms	26060 KB	Output is correct
58	Correct	116 ms	21452 KB	Output is correct
59	Correct	132 ms	21448 KB	Output is correct
60	Correct	131 ms	20948 KB	Output is correct
61	Correct	143 ms	21444 KB	Output is correct
62	Correct	190 ms	28620 KB	Output is correct
63	Correct	153 ms	21328 KB	Output is correct
64	Correct	155 ms	25808 KB	Output is correct
65	Correct	136 ms	19768 KB	Output is correct
66	Correct	128 ms	20408 KB	Output is correct
67	Correct	173 ms	24016 KB	Output is correct
68	Correct	189 ms	28364 KB	Output is correct
69	Correct	120 ms	21064 KB	Output is correct
70	Correct	67 ms	26860 KB	Output is correct
71	Correct	186 ms	27996 KB	Output is correct
72	Correct	114 ms	21452 KB	Output is correct
73	Correct	135 ms	21452 KB	Output is correct
74	Correct	153 ms	21488 KB	Output is correct
75	Correct	184 ms	28112 KB	Output is correct
76	Correct	144 ms	20980 KB	Output is correct
77	Correct	159 ms	24048 KB	Output is correct
78	Correct	160 ms	28724 KB	Output is correct
79	Correct	138 ms	19768 KB	Output is correct
80	Correct	160 ms	20936 KB	Output is correct
81	Correct	170 ms	23536 KB	Output is correct
82	Correct	201 ms	28108 KB	Output is correct
83	Correct	94 ms	20428 KB	Output is correct
84	Correct	43 ms	26060 KB	Output is correct
85	Correct	95 ms	26568 KB	Output is correct
86	Correct	95 ms	20684 KB	Output is correct
87	Correct	139 ms	20684 KB	Output is correct
88	Correct	177 ms	25288 KB	Output is correct
89	Correct	136 ms	20680 KB	Output is correct
90	Correct	140 ms	25804 KB	Output is correct
91	Correct	103 ms	19404 KB	Output is correct
92	Correct	154 ms	21040 KB	Output is correct
93	Correct	160 ms	25808 KB	Output is correct
94	Correct	132 ms	20984 KB	Output is correct
95	Correct	173 ms	28128 KB	Output is correct
96	Correct	127 ms	25280 KB	Output is correct
97	Correct	123 ms	21740 KB	Output is correct
98	Correct	138 ms	21452 KB	Output is correct
99	Correct	144 ms	20460 KB	Output is correct
100	Correct	174 ms	28104 KB	Output is correct
101	Correct	148 ms	20936 KB	Output is correct
102	Correct	165 ms	24240 KB	Output is correct
103	Correct	180 ms	27336 KB	Output is correct
104	Correct	143 ms	20176 KB	Output is correct
105	Correct	170 ms	22076 KB	Output is correct
106	Correct	196 ms	26568 KB	Output is correct
107	Correct	110 ms	27812 KB	Output is correct
108	Correct	122 ms	21072 KB	Output is correct
109	Correct	123 ms	20976 KB	Output is correct
110	Correct	120 ms	20940 KB	Output is correct
111	Correct	120 ms	20940 KB	Output is correct
112	Correct	127 ms	21192 KB	Output is correct
113	Correct	123 ms	20940 KB	Output is correct
114	Correct	122 ms	21188 KB	Output is correct
115	Correct	126 ms	21188 KB	Output is correct
116	Correct	123 ms	20976 KB	Output is correct

Submission #926747

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 8.0

Subtask #3 25.0 / 25.0

Subtask #4 10.0 / 10.0

Subtask #5 22.0 / 22.0

Subtask #6 29.0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
8.0 / 8.0

Subtask #3
25.0 / 25.0

Subtask #4
10.0 / 10.0

Subtask #5
22.0 / 22.0

Subtask #6
29.0 / 29.0