oj.uz

Submission #926214

# Submission time Handle Problem Language Result Execution time Memory
926214 2024-02-12T17:28:03 Z vjudge1 Joker (BOI20_joker) C++17
71 / 100
 2000 ms 16588 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 = 4e5 + 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 + 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)]--; 
}

int ps[N];

void f(int l, int r, int tl, 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)]++;
	if (!ok) ps[m] = tr + 1;
	for (int i = tr; ok && i > m; i--) {
		add(i);
		if (!ok) {
			ps[m] = i;
			break;
		}
	}
	rb();
	add(m);
	f(m + 1, r, ps[m], tr);
	rb();
	pt[sz(h)]++;
	for (int i = tr; i > ps[m]; i--)
		add(i);
	f(l, m - 1, tl, min(tr, 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};
	}
	for (int i = 1; i <= n; i++) 
		p[i] = i, sz[i] = 1;
	f(1, m, 1, m);
	for (int i = 1; i <= q; i++) {
		int l, r;
		cin >> l >> r;
		if (ps[l] > r) cout << "YES\n";
		else cout << "NO\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:128:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  128 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9772 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9640 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9560 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9772 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9640 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9560 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 3 ms 9564 KB Output is correct
30 Correct 3 ms 9820 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 3 ms 9816 KB Output is correct
34 Correct 4 ms 9820 KB Output is correct
35 Correct 3 ms 9720 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 4 ms 9820 KB Output is correct
38 Correct 3 ms 9768 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9676 KB Output is correct
41 Correct 3 ms 9564 KB Output is correct
42 Correct 3 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 3 ms 9820 KB Output is correct
45 Correct 3 ms 9820 KB Output is correct
46 Correct 3 ms 9820 KB Output is correct
47 Correct 3 ms 9564 KB Output is correct
48 Correct 3 ms 9564 KB Output is correct
49 Correct 3 ms 9824 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 3 ms 9564 KB Output is correct
52 Correct 3 ms 9820 KB Output is correct
53 Correct 3 ms 9820 KB Output is correct
54 Correct 3 ms 9820 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 124 ms 12364 KB Output is correct
4 Correct 189 ms 16332 KB Output is correct
5 Correct 126 ms 16588 KB Output is correct
6 Correct 127 ms 12492 KB Output is correct
7 Correct 152 ms 12768 KB Output is correct
8 Correct 134 ms 11728 KB Output is correct
9 Correct 157 ms 12492 KB Output is correct
10 Correct 206 ms 16540 KB Output is correct
11 Correct 162 ms 12552 KB Output is correct
12 Correct 170 ms 15704 KB Output is correct
13 Correct 143 ms 10964 KB Output is correct
14 Correct 138 ms 11760 KB Output is correct
15 Correct 201 ms 15060 KB Output is correct
16 Correct 218 ms 16272 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9772 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9640 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9560 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 124 ms 12364 KB Output is correct
30 Correct 189 ms 16332 KB Output is correct
31 Correct 126 ms 16588 KB Output is correct
32 Correct 127 ms 12492 KB Output is correct
33 Correct 152 ms 12768 KB Output is correct
34 Correct 134 ms 11728 KB Output is correct
35 Correct 157 ms 12492 KB Output is correct
36 Correct 206 ms 16540 KB Output is correct
37 Correct 162 ms 12552 KB Output is correct
38 Correct 170 ms 15704 KB Output is correct
39 Correct 143 ms 10964 KB Output is correct
40 Correct 138 ms 11760 KB Output is correct
41 Correct 201 ms 15060 KB Output is correct
42 Correct 218 ms 16272 KB Output is correct
43 Correct 125 ms 12456 KB Output is correct
44 Correct 190 ms 15052 KB Output is correct
45 Correct 1514 ms 16088 KB Output is correct
46 Correct 121 ms 12488 KB Output is correct
47 Correct 141 ms 12548 KB Output is correct
48 Correct 171 ms 12540 KB Output is correct
49 Correct 204 ms 14796 KB Output is correct
50 Correct 158 ms 11980 KB Output is correct
51 Correct 171 ms 15308 KB Output is correct
52 Correct 175 ms 16328 KB Output is correct
53 Correct 144 ms 10964 KB Output is correct
54 Correct 170 ms 12232 KB Output is correct
55 Correct 191 ms 15564 KB Output is correct
56 Correct 208 ms 14792 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9772 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9640 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9560 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 3 ms 9564 KB Output is correct
30 Correct 3 ms 9820 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 3 ms 9816 KB Output is correct
34 Correct 4 ms 9820 KB Output is correct
35 Correct 3 ms 9720 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 4 ms 9820 KB Output is correct
38 Correct 3 ms 9768 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9676 KB Output is correct
41 Correct 3 ms 9564 KB Output is correct
42 Correct 3 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 3 ms 9820 KB Output is correct
45 Correct 3 ms 9820 KB Output is correct
46 Correct 3 ms 9820 KB Output is correct
47 Correct 3 ms 9564 KB Output is correct
48 Correct 3 ms 9564 KB Output is correct
49 Correct 3 ms 9824 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 3 ms 9564 KB Output is correct
52 Correct 3 ms 9820 KB Output is correct
53 Correct 3 ms 9820 KB Output is correct
54 Correct 3 ms 9820 KB Output is correct
55 Correct 101 ms 12236 KB Output is correct
56 Correct 151 ms 15820 KB Output is correct
57 Correct 101 ms 14804 KB Output is correct
58 Correct 109 ms 12272 KB Output is correct
59 Correct 150 ms 12240 KB Output is correct
60 Correct 184 ms 16272 KB Output is correct
61 Correct 151 ms 12180 KB Output is correct
62 Correct 148 ms 16076 KB Output is correct
63 Correct 116 ms 10972 KB Output is correct
64 Correct 170 ms 12276 KB Output is correct
65 Correct 184 ms 15568 KB Output is correct

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9564 KB Output is correct
2 Correct 2 ms 9564 KB Output is correct
3 Correct 2 ms 9560 KB Output is correct
4 Correct 2 ms 9564 KB Output is correct
5 Correct 2 ms 9564 KB Output is correct
6 Correct 2 ms 9564 KB Output is correct
7 Correct 2 ms 9564 KB Output is correct
8 Correct 2 ms 9564 KB Output is correct
9 Correct 2 ms 9564 KB Output is correct
10 Correct 2 ms 9564 KB Output is correct
11 Correct 2 ms 9564 KB Output is correct
12 Correct 2 ms 9564 KB Output is correct
13 Correct 2 ms 9564 KB Output is correct
14 Correct 2 ms 9772 KB Output is correct
15 Correct 2 ms 9564 KB Output is correct
16 Correct 2 ms 9564 KB Output is correct
17 Correct 2 ms 9564 KB Output is correct
18 Correct 2 ms 9640 KB Output is correct
19 Correct 2 ms 9564 KB Output is correct
20 Correct 2 ms 9564 KB Output is correct
21 Correct 2 ms 9564 KB Output is correct
22 Correct 2 ms 9564 KB Output is correct
23 Correct 2 ms 9564 KB Output is correct
24 Correct 2 ms 9564 KB Output is correct
25 Correct 2 ms 9564 KB Output is correct
26 Correct 2 ms 9564 KB Output is correct
27 Correct 2 ms 9560 KB Output is correct
28 Correct 2 ms 9564 KB Output is correct
29 Correct 3 ms 9564 KB Output is correct
30 Correct 3 ms 9820 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Correct 3 ms 9564 KB Output is correct
33 Correct 3 ms 9816 KB Output is correct
34 Correct 4 ms 9820 KB Output is correct
35 Correct 3 ms 9720 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 4 ms 9820 KB Output is correct
38 Correct 3 ms 9768 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9676 KB Output is correct
41 Correct 3 ms 9564 KB Output is correct
42 Correct 3 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 3 ms 9820 KB Output is correct
45 Correct 3 ms 9820 KB Output is correct
46 Correct 3 ms 9820 KB Output is correct
47 Correct 3 ms 9564 KB Output is correct
48 Correct 3 ms 9564 KB Output is correct
49 Correct 3 ms 9824 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 3 ms 9564 KB Output is correct
52 Correct 3 ms 9820 KB Output is correct
53 Correct 3 ms 9820 KB Output is correct
54 Correct 3 ms 9820 KB Output is correct
55 Correct 124 ms 12364 KB Output is correct
56 Correct 189 ms 16332 KB Output is correct
57 Correct 126 ms 16588 KB Output is correct
58 Correct 127 ms 12492 KB Output is correct
59 Correct 152 ms 12768 KB Output is correct
60 Correct 134 ms 11728 KB Output is correct
61 Correct 157 ms 12492 KB Output is correct
62 Correct 206 ms 16540 KB Output is correct
63 Correct 162 ms 12552 KB Output is correct
64 Correct 170 ms 15704 KB Output is correct
65 Correct 143 ms 10964 KB Output is correct
66 Correct 138 ms 11760 KB Output is correct
67 Correct 201 ms 15060 KB Output is correct
68 Correct 218 ms 16272 KB Output is correct
69 Correct 125 ms 12456 KB Output is correct
70 Correct 190 ms 15052 KB Output is correct
71 Correct 1514 ms 16088 KB Output is correct
72 Correct 121 ms 12488 KB Output is correct
73 Correct 141 ms 12548 KB Output is correct
74 Correct 171 ms 12540 KB Output is correct
75 Correct 204 ms 14796 KB Output is correct
76 Correct 158 ms 11980 KB Output is correct
77 Correct 171 ms 15308 KB Output is correct
78 Correct 175 ms 16328 KB Output is correct
79 Correct 144 ms 10964 KB Output is correct
80 Correct 170 ms 12232 KB Output is correct
81 Correct 191 ms 15564 KB Output is correct
82 Correct 208 ms 14792 KB Output is correct
83 Correct 101 ms 12236 KB Output is correct
84 Correct 151 ms 15820 KB Output is correct
85 Correct 101 ms 14804 KB Output is correct
86 Correct 109 ms 12272 KB Output is correct
87 Correct 150 ms 12240 KB Output is correct
88 Correct 184 ms 16272 KB Output is correct
89 Correct 151 ms 12180 KB Output is correct
90 Correct 148 ms 16076 KB Output is correct
91 Correct 116 ms 10972 KB Output is correct
92 Correct 170 ms 12276 KB Output is correct
93 Correct 184 ms 15568 KB Output is correct
94 Correct 128 ms 12616 KB Output is correct
95 Execution timed out 2063 ms 15564 KB Time limit exceeded
96 Halted 0 ms 0 KB -