oj.uz

Submission #926746

# Submission time Handle Problem Language Result Execution time Memory
926746 2024-02-13T15:43:11 Z mansur Joker (BOI20_joker) C++17
100 / 100
 203 ms 33988 KB 
#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 16264 KB Output is correct
4 Correct 3 ms 16472 KB Output is correct
5 Correct 4 ms 16472 KB Output is correct
6 Correct 3 ms 16472 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 3 ms 16476 KB Output is correct
9 Correct 4 ms 16476 KB Output is correct
10 Correct 3 ms 16476 KB Output is correct
11 Correct 3 ms 16516 KB Output is correct
12 Correct 3 ms 16476 KB Output is correct
13 Correct 3 ms 16332 KB Output is correct
14 Correct 3 ms 16476 KB Output is correct
15 Correct 3 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 4 ms 16728 KB Output is correct
20 Correct 3 ms 16472 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 4 ms 16476 KB Output is correct
23 Correct 3 ms 16476 KB Output is correct
24 Correct 3 ms 16476 KB Output is correct
25 Correct 4 ms 16476 KB Output is correct
26 Correct 3 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 3 ms 16472 KB Output is correct
2 Correct 3 ms 16476 KB Output is correct
3 Correct 3 ms 16264 KB Output is correct
4 Correct 3 ms 16472 KB Output is correct
5 Correct 4 ms 16472 KB Output is correct
6 Correct 3 ms 16472 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 3 ms 16476 KB Output is correct
9 Correct 4 ms 16476 KB Output is correct
10 Correct 3 ms 16476 KB Output is correct
11 Correct 3 ms 16516 KB Output is correct
12 Correct 3 ms 16476 KB Output is correct
13 Correct 3 ms 16332 KB Output is correct
14 Correct 3 ms 16476 KB Output is correct
15 Correct 3 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 4 ms 16728 KB Output is correct
20 Correct 3 ms 16472 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 4 ms 16476 KB Output is correct
23 Correct 3 ms 16476 KB Output is correct
24 Correct 3 ms 16476 KB Output is correct
25 Correct 4 ms 16476 KB Output is correct
26 Correct 3 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 16552 KB Output is correct
31 Correct 4 ms 16476 KB Output is correct
32 Correct 4 ms 16324 KB Output is correct
33 Correct 4 ms 16476 KB Output is correct
34 Correct 5 ms 16356 KB Output is correct
35 Correct 4 ms 16476 KB Output is correct
36 Correct 4 ms 16476 KB Output is correct
37 Correct 5 ms 16476 KB Output is correct
38 Correct 4 ms 16472 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 16476 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 16476 KB Output is correct
45 Correct 4 ms 16476 KB Output is correct
46 Correct 4 ms 16476 KB Output is correct
47 Correct 5 ms 16476 KB Output is correct
48 Correct 4 ms 16476 KB Output is correct
49 Correct 4 ms 16476 KB Output is correct
50 Correct 4 ms 16476 KB Output is correct
51 Correct 4 ms 16476 KB Output is correct
52 Correct 4 ms 16568 KB Output is correct
53 Correct 5 ms 16476 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 122 ms 21072 KB Output is correct
4 Correct 63 ms 25036 KB Output is correct
5 Correct 116 ms 25340 KB Output is correct
6 Correct 116 ms 21452 KB Output is correct
7 Correct 137 ms 21448 KB Output is correct
8 Correct 123 ms 20576 KB Output is correct
9 Correct 140 ms 21456 KB Output is correct
10 Correct 180 ms 28404 KB Output is correct
11 Correct 148 ms 21448 KB Output is correct
12 Correct 155 ms 25804 KB Output is correct
13 Correct 133 ms 19668 KB Output is correct
14 Correct 127 ms 20428 KB Output is correct
15 Correct 191 ms 23288 KB Output is correct
16 Correct 186 ms 28100 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 16264 KB Output is correct
4 Correct 3 ms 16472 KB Output is correct
5 Correct 4 ms 16472 KB Output is correct
6 Correct 3 ms 16472 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 3 ms 16476 KB Output is correct
9 Correct 4 ms 16476 KB Output is correct
10 Correct 3 ms 16476 KB Output is correct
11 Correct 3 ms 16516 KB Output is correct
12 Correct 3 ms 16476 KB Output is correct
13 Correct 3 ms 16332 KB Output is correct
14 Correct 3 ms 16476 KB Output is correct
15 Correct 3 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 4 ms 16728 KB Output is correct
20 Correct 3 ms 16472 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 4 ms 16476 KB Output is correct
23 Correct 3 ms 16476 KB Output is correct
24 Correct 3 ms 16476 KB Output is correct
25 Correct 4 ms 16476 KB Output is correct
26 Correct 3 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 122 ms 21072 KB Output is correct
30 Correct 63 ms 25036 KB Output is correct
31 Correct 116 ms 25340 KB Output is correct
32 Correct 116 ms 21452 KB Output is correct
33 Correct 137 ms 21448 KB Output is correct
34 Correct 123 ms 20576 KB Output is correct
35 Correct 140 ms 21456 KB Output is correct
36 Correct 180 ms 28404 KB Output is correct
37 Correct 148 ms 21448 KB Output is correct
38 Correct 155 ms 25804 KB Output is correct
39 Correct 133 ms 19668 KB Output is correct
40 Correct 127 ms 20428 KB Output is correct
41 Correct 191 ms 23288 KB Output is correct
42 Correct 186 ms 28100 KB Output is correct
43 Correct 144 ms 20936 KB Output is correct
44 Correct 65 ms 26056 KB Output is correct
45 Correct 176 ms 28200 KB Output is correct
46 Correct 119 ms 21488 KB Output is correct
47 Correct 127 ms 21452 KB Output is correct
48 Correct 156 ms 21568 KB Output is correct
49 Correct 196 ms 28104 KB Output is correct
50 Correct 141 ms 20936 KB Output is correct
51 Correct 150 ms 22732 KB Output is correct
52 Correct 164 ms 28104 KB Output is correct
53 Correct 137 ms 19684 KB Output is correct
54 Correct 150 ms 21012 KB Output is correct
55 Correct 185 ms 23240 KB Output is correct
56 Correct 186 ms 27080 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 16264 KB Output is correct
4 Correct 3 ms 16472 KB Output is correct
5 Correct 4 ms 16472 KB Output is correct
6 Correct 3 ms 16472 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 3 ms 16476 KB Output is correct
9 Correct 4 ms 16476 KB Output is correct
10 Correct 3 ms 16476 KB Output is correct
11 Correct 3 ms 16516 KB Output is correct
12 Correct 3 ms 16476 KB Output is correct
13 Correct 3 ms 16332 KB Output is correct
14 Correct 3 ms 16476 KB Output is correct
15 Correct 3 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 4 ms 16728 KB Output is correct
20 Correct 3 ms 16472 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 4 ms 16476 KB Output is correct
23 Correct 3 ms 16476 KB Output is correct
24 Correct 3 ms 16476 KB Output is correct
25 Correct 4 ms 16476 KB Output is correct
26 Correct 3 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 16552 KB Output is correct
31 Correct 4 ms 16476 KB Output is correct
32 Correct 4 ms 16324 KB Output is correct
33 Correct 4 ms 16476 KB Output is correct
34 Correct 5 ms 16356 KB Output is correct
35 Correct 4 ms 16476 KB Output is correct
36 Correct 4 ms 16476 KB Output is correct
37 Correct 5 ms 16476 KB Output is correct
38 Correct 4 ms 16472 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 16476 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 16476 KB Output is correct
45 Correct 4 ms 16476 KB Output is correct
46 Correct 4 ms 16476 KB Output is correct
47 Correct 5 ms 16476 KB Output is correct
48 Correct 4 ms 16476 KB Output is correct
49 Correct 4 ms 16476 KB Output is correct
50 Correct 4 ms 16476 KB Output is correct
51 Correct 4 ms 16476 KB Output is correct
52 Correct 4 ms 16568 KB Output is correct
53 Correct 5 ms 16476 KB Output is correct
54 Correct 4 ms 16476 KB Output is correct
55 Correct 96 ms 20552 KB Output is correct
56 Correct 42 ms 25292 KB Output is correct
57 Correct 89 ms 25552 KB Output is correct
58 Correct 99 ms 20776 KB Output is correct
59 Correct 134 ms 20768 KB Output is correct
60 Correct 161 ms 26572 KB Output is correct
61 Correct 140 ms 20680 KB Output is correct
62 Correct 136 ms 24776 KB Output is correct
63 Correct 107 ms 19408 KB Output is correct
64 Correct 144 ms 21096 KB Output is correct
65 Correct 174 ms 26580 KB Output is correct

Subtask #6
29.0 / 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 16264 KB Output is correct
4 Correct 3 ms 16472 KB Output is correct
5 Correct 4 ms 16472 KB Output is correct
6 Correct 3 ms 16472 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 3 ms 16476 KB Output is correct
9 Correct 4 ms 16476 KB Output is correct
10 Correct 3 ms 16476 KB Output is correct
11 Correct 3 ms 16516 KB Output is correct
12 Correct 3 ms 16476 KB Output is correct
13 Correct 3 ms 16332 KB Output is correct
14 Correct 3 ms 16476 KB Output is correct
15 Correct 3 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 4 ms 16728 KB Output is correct
20 Correct 3 ms 16472 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 4 ms 16476 KB Output is correct
23 Correct 3 ms 16476 KB Output is correct
24 Correct 3 ms 16476 KB Output is correct
25 Correct 4 ms 16476 KB Output is correct
26 Correct 3 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 16552 KB Output is correct
31 Correct 4 ms 16476 KB Output is correct
32 Correct 4 ms 16324 KB Output is correct
33 Correct 4 ms 16476 KB Output is correct
34 Correct 5 ms 16356 KB Output is correct
35 Correct 4 ms 16476 KB Output is correct
36 Correct 4 ms 16476 KB Output is correct
37 Correct 5 ms 16476 KB Output is correct
38 Correct 4 ms 16472 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 16476 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 16476 KB Output is correct
45 Correct 4 ms 16476 KB Output is correct
46 Correct 4 ms 16476 KB Output is correct
47 Correct 5 ms 16476 KB Output is correct
48 Correct 4 ms 16476 KB Output is correct
49 Correct 4 ms 16476 KB Output is correct
50 Correct 4 ms 16476 KB Output is correct
51 Correct 4 ms 16476 KB Output is correct
52 Correct 4 ms 16568 KB Output is correct
53 Correct 5 ms 16476 KB Output is correct
54 Correct 4 ms 16476 KB Output is correct
55 Correct 122 ms 21072 KB Output is correct
56 Correct 63 ms 25036 KB Output is correct
57 Correct 116 ms 25340 KB Output is correct
58 Correct 116 ms 21452 KB Output is correct
59 Correct 137 ms 21448 KB Output is correct
60 Correct 123 ms 20576 KB Output is correct
61 Correct 140 ms 21456 KB Output is correct
62 Correct 180 ms 28404 KB Output is correct
63 Correct 148 ms 21448 KB Output is correct
64 Correct 155 ms 25804 KB Output is correct
65 Correct 133 ms 19668 KB Output is correct
66 Correct 127 ms 20428 KB Output is correct
67 Correct 191 ms 23288 KB Output is correct
68 Correct 186 ms 28100 KB Output is correct
69 Correct 144 ms 20936 KB Output is correct
70 Correct 65 ms 26056 KB Output is correct
71 Correct 176 ms 28200 KB Output is correct
72 Correct 119 ms 21488 KB Output is correct
73 Correct 127 ms 21452 KB Output is correct
74 Correct 156 ms 21568 KB Output is correct
75 Correct 196 ms 28104 KB Output is correct
76 Correct 141 ms 20936 KB Output is correct
77 Correct 150 ms 22732 KB Output is correct
78 Correct 164 ms 28104 KB Output is correct
79 Correct 137 ms 19684 KB Output is correct
80 Correct 150 ms 21012 KB Output is correct
81 Correct 185 ms 23240 KB Output is correct
82 Correct 186 ms 27080 KB Output is correct
83 Correct 96 ms 20552 KB Output is correct
84 Correct 42 ms 25292 KB Output is correct
85 Correct 89 ms 25552 KB Output is correct
86 Correct 99 ms 20776 KB Output is correct
87 Correct 134 ms 20768 KB Output is correct
88 Correct 161 ms 26572 KB Output is correct
89 Correct 140 ms 20680 KB Output is correct
90 Correct 136 ms 24776 KB Output is correct
91 Correct 107 ms 19408 KB Output is correct
92 Correct 144 ms 21096 KB Output is correct
93 Correct 174 ms 26580 KB Output is correct
94 Correct 124 ms 20940 KB Output is correct
95 Correct 171 ms 28104 KB Output is correct
96 Correct 135 ms 31172 KB Output is correct
97 Correct 125 ms 26316 KB Output is correct
98 Correct 140 ms 26464 KB Output is correct
99 Correct 149 ms 25288 KB Output is correct
100 Correct 180 ms 32524 KB Output is correct
101 Correct 150 ms 25804 KB Output is correct
102 Correct 167 ms 29020 KB Output is correct
103 Correct 188 ms 33220 KB Output is correct
104 Correct 144 ms 25072 KB Output is correct
105 Correct 172 ms 26828 KB Output is correct
106 Correct 203 ms 29848 KB Output is correct
107 Correct 112 ms 33988 KB Output is correct
108 Correct 126 ms 25756 KB Output is correct
109 Correct 128 ms 25916 KB Output is correct
110 Correct 121 ms 25804 KB Output is correct
111 Correct 126 ms 25804 KB Output is correct
112 Correct 123 ms 25804 KB Output is correct
113 Correct 126 ms 25800 KB Output is correct
114 Correct 121 ms 25804 KB Output is correct
115 Correct 125 ms 25672 KB Output is correct
116 Correct 127 ms 25964 KB Output is correct