Submission #926745

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
926745	2024-02-13T15:34:14 Z	mansur	Joker (BOI20_joker)	C++17	71 / 100	202 ms	32728 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	3 ms	16472 KB	Output is correct
2	Correct	3 ms	16476 KB	Output is correct
3	Correct	3 ms	16516 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	4 ms	16476 KB	Output is correct
7	Correct	3 ms	16476 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	3 ms	16476 KB	Output is correct
10	Correct	3 ms	16476 KB	Output is correct
11	Correct	3 ms	16508 KB	Output is correct
12	Correct	3 ms	16476 KB	Output is correct
13	Correct	4 ms	16520 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	16516 KB	Output is correct
17	Correct	4 ms	16404 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	4 ms	16476 KB	Output is correct
20	Correct	4 ms	16476 KB	Output is correct
21	Correct	4 ms	16528 KB	Output is correct
22	Correct	4 ms	16728 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16484 KB	Output is correct
25	Correct	3 ms	16480 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	4 ms	16512 KB	Output is correct
28	Correct	3 ms	16476 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	16472 KB	Output is correct
2	Correct	3 ms	16476 KB	Output is correct
3	Correct	3 ms	16516 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	4 ms	16476 KB	Output is correct
7	Correct	3 ms	16476 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	3 ms	16476 KB	Output is correct
10	Correct	3 ms	16476 KB	Output is correct
11	Correct	3 ms	16508 KB	Output is correct
12	Correct	3 ms	16476 KB	Output is correct
13	Correct	4 ms	16520 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	16516 KB	Output is correct
17	Correct	4 ms	16404 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	4 ms	16476 KB	Output is correct
20	Correct	4 ms	16476 KB	Output is correct
21	Correct	4 ms	16528 KB	Output is correct
22	Correct	4 ms	16728 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16484 KB	Output is correct
25	Correct	3 ms	16480 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	4 ms	16512 KB	Output is correct
28	Correct	3 ms	16476 KB	Output is correct
29	Correct	4 ms	16476 KB	Output is correct
30	Correct	5 ms	16476 KB	Output is correct
31	Correct	4 ms	16476 KB	Output is correct
32	Correct	5 ms	16480 KB	Output is correct
33	Correct	4 ms	16476 KB	Output is correct
34	Correct	4 ms	16472 KB	Output is correct
35	Correct	4 ms	16476 KB	Output is correct
36	Correct	5 ms	16480 KB	Output is correct
37	Correct	4 ms	16476 KB	Output is correct
38	Correct	5 ms	16560 KB	Output is correct
39	Correct	4 ms	16476 KB	Output is correct
40	Correct	4 ms	16476 KB	Output is correct
41	Correct	5 ms	16524 KB	Output is correct
42	Correct	4 ms	16476 KB	Output is correct
43	Correct	4 ms	16476 KB	Output is correct
44	Correct	4 ms	16472 KB	Output is correct
45	Correct	5 ms	16484 KB	Output is correct
46	Correct	5 ms	16476 KB	Output is correct
47	Correct	4 ms	16476 KB	Output is correct
48	Correct	6 ms	16476 KB	Output is correct
49	Correct	5 ms	16476 KB	Output is correct
50	Correct	5 ms	16728 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	16472 KB	Output is correct
54	Correct	4 ms	16476 KB	Output is correct

Subtask #3
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	16472 KB	Output is correct
2	Correct	3 ms	16476 KB	Output is correct
3	Correct	124 ms	25032 KB	Output is correct
4	Correct	65 ms	27848 KB	Output is correct
5	Correct	134 ms	29520 KB	Output is correct
6	Correct	119 ms	25492 KB	Output is correct
7	Correct	133 ms	25292 KB	Output is correct
8	Correct	132 ms	23972 KB	Output is correct
9	Correct	143 ms	24904 KB	Output is correct
10	Correct	181 ms	30660 KB	Output is correct
11	Correct	150 ms	25332 KB	Output is correct
12	Correct	154 ms	30500 KB	Output is correct
13	Correct	135 ms	23508 KB	Output is correct
14	Correct	157 ms	24368 KB	Output is correct
15	Correct	179 ms	27588 KB	Output is correct
16	Correct	178 ms	31192 KB	Output is correct

Subtask #4
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	16472 KB	Output is correct
2	Correct	3 ms	16476 KB	Output is correct
3	Correct	3 ms	16516 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	4 ms	16476 KB	Output is correct
7	Correct	3 ms	16476 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	3 ms	16476 KB	Output is correct
10	Correct	3 ms	16476 KB	Output is correct
11	Correct	3 ms	16508 KB	Output is correct
12	Correct	3 ms	16476 KB	Output is correct
13	Correct	4 ms	16520 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	16516 KB	Output is correct
17	Correct	4 ms	16404 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	4 ms	16476 KB	Output is correct
20	Correct	4 ms	16476 KB	Output is correct
21	Correct	4 ms	16528 KB	Output is correct
22	Correct	4 ms	16728 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16484 KB	Output is correct
25	Correct	3 ms	16480 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	4 ms	16512 KB	Output is correct
28	Correct	3 ms	16476 KB	Output is correct
29	Correct	124 ms	25032 KB	Output is correct
30	Correct	65 ms	27848 KB	Output is correct
31	Correct	134 ms	29520 KB	Output is correct
32	Correct	119 ms	25492 KB	Output is correct
33	Correct	133 ms	25292 KB	Output is correct
34	Correct	132 ms	23972 KB	Output is correct
35	Correct	143 ms	24904 KB	Output is correct
36	Correct	181 ms	30660 KB	Output is correct
37	Correct	150 ms	25332 KB	Output is correct
38	Correct	154 ms	30500 KB	Output is correct
39	Correct	135 ms	23508 KB	Output is correct
40	Correct	157 ms	24368 KB	Output is correct
41	Correct	179 ms	27588 KB	Output is correct
42	Correct	178 ms	31192 KB	Output is correct
43	Correct	133 ms	25292 KB	Output is correct
44	Correct	69 ms	29132 KB	Output is correct
45	Correct	175 ms	32276 KB	Output is correct
46	Correct	114 ms	25784 KB	Output is correct
47	Correct	138 ms	25624 KB	Output is correct
48	Correct	156 ms	25356 KB	Output is correct
49	Correct	193 ms	32268 KB	Output is correct
50	Correct	142 ms	25060 KB	Output is correct
51	Correct	154 ms	28272 KB	Output is correct
52	Correct	164 ms	32728 KB	Output is correct
53	Correct	138 ms	23760 KB	Output is correct
54	Correct	155 ms	25288 KB	Output is correct
55	Correct	181 ms	26948 KB	Output is correct
56	Correct	202 ms	32320 KB	Output is correct

Subtask #5
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	16472 KB	Output is correct
2	Correct	3 ms	16476 KB	Output is correct
3	Correct	3 ms	16516 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	4 ms	16476 KB	Output is correct
7	Correct	3 ms	16476 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	3 ms	16476 KB	Output is correct
10	Correct	3 ms	16476 KB	Output is correct
11	Correct	3 ms	16508 KB	Output is correct
12	Correct	3 ms	16476 KB	Output is correct
13	Correct	4 ms	16520 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	16516 KB	Output is correct
17	Correct	4 ms	16404 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	4 ms	16476 KB	Output is correct
20	Correct	4 ms	16476 KB	Output is correct
21	Correct	4 ms	16528 KB	Output is correct
22	Correct	4 ms	16728 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16484 KB	Output is correct
25	Correct	3 ms	16480 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	4 ms	16512 KB	Output is correct
28	Correct	3 ms	16476 KB	Output is correct
29	Correct	4 ms	16476 KB	Output is correct
30	Correct	5 ms	16476 KB	Output is correct
31	Correct	4 ms	16476 KB	Output is correct
32	Correct	5 ms	16480 KB	Output is correct
33	Correct	4 ms	16476 KB	Output is correct
34	Correct	4 ms	16472 KB	Output is correct
35	Correct	4 ms	16476 KB	Output is correct
36	Correct	5 ms	16480 KB	Output is correct
37	Correct	4 ms	16476 KB	Output is correct
38	Correct	5 ms	16560 KB	Output is correct
39	Correct	4 ms	16476 KB	Output is correct
40	Correct	4 ms	16476 KB	Output is correct
41	Correct	5 ms	16524 KB	Output is correct
42	Correct	4 ms	16476 KB	Output is correct
43	Correct	4 ms	16476 KB	Output is correct
44	Correct	4 ms	16472 KB	Output is correct
45	Correct	5 ms	16484 KB	Output is correct
46	Correct	5 ms	16476 KB	Output is correct
47	Correct	4 ms	16476 KB	Output is correct
48	Correct	6 ms	16476 KB	Output is correct
49	Correct	5 ms	16476 KB	Output is correct
50	Correct	5 ms	16728 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	16472 KB	Output is correct
54	Correct	4 ms	16476 KB	Output is correct
55	Correct	96 ms	22832 KB	Output is correct
56	Correct	42 ms	28108 KB	Output is correct
57	Correct	96 ms	28624 KB	Output is correct
58	Correct	95 ms	23120 KB	Output is correct
59	Correct	134 ms	23104 KB	Output is correct
60	Correct	161 ms	29128 KB	Output is correct
61	Correct	143 ms	23144 KB	Output is correct
62	Correct	136 ms	29008 KB	Output is correct
63	Correct	106 ms	21712 KB	Output is correct
64	Correct	138 ms	23496 KB	Output is correct
65	Correct	174 ms	27848 KB	Output is correct

Subtask #6
0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	16472 KB	Output is correct
2	Correct	3 ms	16476 KB	Output is correct
3	Correct	3 ms	16516 KB	Output is correct
4	Correct	3 ms	16476 KB	Output is correct
5	Correct	3 ms	16476 KB	Output is correct
6	Correct	4 ms	16476 KB	Output is correct
7	Correct	3 ms	16476 KB	Output is correct
8	Correct	3 ms	16476 KB	Output is correct
9	Correct	3 ms	16476 KB	Output is correct
10	Correct	3 ms	16476 KB	Output is correct
11	Correct	3 ms	16508 KB	Output is correct
12	Correct	3 ms	16476 KB	Output is correct
13	Correct	4 ms	16520 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	16516 KB	Output is correct
17	Correct	4 ms	16404 KB	Output is correct
18	Correct	3 ms	16476 KB	Output is correct
19	Correct	4 ms	16476 KB	Output is correct
20	Correct	4 ms	16476 KB	Output is correct
21	Correct	4 ms	16528 KB	Output is correct
22	Correct	4 ms	16728 KB	Output is correct
23	Correct	4 ms	16476 KB	Output is correct
24	Correct	3 ms	16484 KB	Output is correct
25	Correct	3 ms	16480 KB	Output is correct
26	Correct	4 ms	16476 KB	Output is correct
27	Correct	4 ms	16512 KB	Output is correct
28	Correct	3 ms	16476 KB	Output is correct
29	Correct	4 ms	16476 KB	Output is correct
30	Correct	5 ms	16476 KB	Output is correct
31	Correct	4 ms	16476 KB	Output is correct
32	Correct	5 ms	16480 KB	Output is correct
33	Correct	4 ms	16476 KB	Output is correct
34	Correct	4 ms	16472 KB	Output is correct
35	Correct	4 ms	16476 KB	Output is correct
36	Correct	5 ms	16480 KB	Output is correct
37	Correct	4 ms	16476 KB	Output is correct
38	Correct	5 ms	16560 KB	Output is correct
39	Correct	4 ms	16476 KB	Output is correct
40	Correct	4 ms	16476 KB	Output is correct
41	Correct	5 ms	16524 KB	Output is correct
42	Correct	4 ms	16476 KB	Output is correct
43	Correct	4 ms	16476 KB	Output is correct
44	Correct	4 ms	16472 KB	Output is correct
45	Correct	5 ms	16484 KB	Output is correct
46	Correct	5 ms	16476 KB	Output is correct
47	Correct	4 ms	16476 KB	Output is correct
48	Correct	6 ms	16476 KB	Output is correct
49	Correct	5 ms	16476 KB	Output is correct
50	Correct	5 ms	16728 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	16472 KB	Output is correct
54	Correct	4 ms	16476 KB	Output is correct
55	Correct	124 ms	25032 KB	Output is correct
56	Correct	65 ms	27848 KB	Output is correct
57	Correct	134 ms	29520 KB	Output is correct
58	Correct	119 ms	25492 KB	Output is correct
59	Correct	133 ms	25292 KB	Output is correct
60	Correct	132 ms	23972 KB	Output is correct
61	Correct	143 ms	24904 KB	Output is correct
62	Correct	181 ms	30660 KB	Output is correct
63	Correct	150 ms	25332 KB	Output is correct
64	Correct	154 ms	30500 KB	Output is correct
65	Correct	135 ms	23508 KB	Output is correct
66	Correct	157 ms	24368 KB	Output is correct
67	Correct	179 ms	27588 KB	Output is correct
68	Correct	178 ms	31192 KB	Output is correct
69	Correct	133 ms	25292 KB	Output is correct
70	Correct	69 ms	29132 KB	Output is correct
71	Correct	175 ms	32276 KB	Output is correct
72	Correct	114 ms	25784 KB	Output is correct
73	Correct	138 ms	25624 KB	Output is correct
74	Correct	156 ms	25356 KB	Output is correct
75	Correct	193 ms	32268 KB	Output is correct
76	Correct	142 ms	25060 KB	Output is correct
77	Correct	154 ms	28272 KB	Output is correct
78	Correct	164 ms	32728 KB	Output is correct
79	Correct	138 ms	23760 KB	Output is correct
80	Correct	155 ms	25288 KB	Output is correct
81	Correct	181 ms	26948 KB	Output is correct
82	Correct	202 ms	32320 KB	Output is correct
83	Correct	96 ms	22832 KB	Output is correct
84	Correct	42 ms	28108 KB	Output is correct
85	Correct	96 ms	28624 KB	Output is correct
86	Correct	95 ms	23120 KB	Output is correct
87	Correct	134 ms	23104 KB	Output is correct
88	Correct	161 ms	29128 KB	Output is correct
89	Correct	143 ms	23144 KB	Output is correct
90	Correct	136 ms	29008 KB	Output is correct
91	Correct	106 ms	21712 KB	Output is correct
92	Correct	138 ms	23496 KB	Output is correct
93	Correct	174 ms	27848 KB	Output is correct
94	Correct	124 ms	25896 KB	Output is correct
95	Incorrect	139 ms	32452 KB	Output isn't correct
96	Halted	0 ms	0 KB	-

Submission #926745

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 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
0 / 29.0