oj.uz

Submission #926223

# Submission time Handle Problem Language Result Execution time Memory
926223 2024-02-12T17:33:16 Z mansur Joker (BOI20_joker) C++17
71 / 100
 2000 ms 16516 KB 
#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 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, tr);
	rb();
	pt[sz(h)]++;
	for (int i = tr; i > ps[m]; i--)
		add(i);
	f(l, m - 1, 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, 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:125:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  125 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9560 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 2 ms 9564 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 3 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 9564 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 9564 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 3 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 9560 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 2 ms 9564 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 3 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 9564 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 9564 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 3 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 9816 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Correct 2 ms 9812 KB Output is correct
33 Correct 4 ms 9564 KB Output is correct
34 Correct 3 ms 9820 KB Output is correct
35 Correct 3 ms 9820 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 5 ms 9624 KB Output is correct
38 Correct 4 ms 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9564 KB Output is correct
41 Correct 3 ms 9820 KB Output is correct
42 Correct 4 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 3 ms 9564 KB Output is correct
45 Correct 4 ms 9820 KB Output is correct
46 Correct 3 ms 9768 KB Output is correct
47 Correct 3 ms 9560 KB Output is correct
48 Correct 4 ms 9564 KB Output is correct
49 Correct 5 ms 9820 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 4 ms 9768 KB Output is correct
52 Correct 3 ms 9560 KB Output is correct
53 Correct 4 ms 9820 KB Output is correct
54 Correct 4 ms 9820 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9560 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 119 ms 12552 KB Output is correct
4 Correct 213 ms 14624 KB Output is correct
5 Correct 119 ms 16024 KB Output is correct
6 Correct 162 ms 12492 KB Output is correct
7 Correct 136 ms 12488 KB Output is correct
8 Correct 134 ms 11728 KB Output is correct
9 Correct 166 ms 12532 KB Output is correct
10 Correct 197 ms 15500 KB Output is correct
11 Correct 170 ms 12448 KB Output is correct
12 Correct 170 ms 14808 KB Output is correct
13 Correct 133 ms 10976 KB Output is correct
14 Correct 137 ms 11692 KB Output is correct
15 Correct 186 ms 14804 KB Output is correct
16 Correct 199 ms 16020 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9560 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 2 ms 9564 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 3 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 9564 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 9564 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 3 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 119 ms 12552 KB Output is correct
30 Correct 213 ms 14624 KB Output is correct
31 Correct 119 ms 16024 KB Output is correct
32 Correct 162 ms 12492 KB Output is correct
33 Correct 136 ms 12488 KB Output is correct
34 Correct 134 ms 11728 KB Output is correct
35 Correct 166 ms 12532 KB Output is correct
36 Correct 197 ms 15500 KB Output is correct
37 Correct 170 ms 12448 KB Output is correct
38 Correct 170 ms 14808 KB Output is correct
39 Correct 133 ms 10976 KB Output is correct
40 Correct 137 ms 11692 KB Output is correct
41 Correct 186 ms 14804 KB Output is correct
42 Correct 199 ms 16020 KB Output is correct
43 Correct 122 ms 12440 KB Output is correct
44 Correct 181 ms 15304 KB Output is correct
45 Correct 1485 ms 16356 KB Output is correct
46 Correct 117 ms 12540 KB Output is correct
47 Correct 140 ms 12440 KB Output is correct
48 Correct 177 ms 12788 KB Output is correct
49 Correct 192 ms 15000 KB Output is correct
50 Correct 164 ms 12144 KB Output is correct
51 Correct 168 ms 14728 KB Output is correct
52 Correct 171 ms 15816 KB Output is correct
53 Correct 137 ms 10912 KB Output is correct
54 Correct 156 ms 12184 KB Output is correct
55 Correct 207 ms 14796 KB Output is correct
56 Correct 200 ms 16328 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9560 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 2 ms 9564 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 3 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 9564 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 9564 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 3 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 9816 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Correct 2 ms 9812 KB Output is correct
33 Correct 4 ms 9564 KB Output is correct
34 Correct 3 ms 9820 KB Output is correct
35 Correct 3 ms 9820 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 5 ms 9624 KB Output is correct
38 Correct 4 ms 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9564 KB Output is correct
41 Correct 3 ms 9820 KB Output is correct
42 Correct 4 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 3 ms 9564 KB Output is correct
45 Correct 4 ms 9820 KB Output is correct
46 Correct 3 ms 9768 KB Output is correct
47 Correct 3 ms 9560 KB Output is correct
48 Correct 4 ms 9564 KB Output is correct
49 Correct 5 ms 9820 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 4 ms 9768 KB Output is correct
52 Correct 3 ms 9560 KB Output is correct
53 Correct 4 ms 9820 KB Output is correct
54 Correct 4 ms 9820 KB Output is correct
55 Correct 96 ms 12236 KB Output is correct
56 Correct 144 ms 16516 KB Output is correct
57 Correct 88 ms 15060 KB Output is correct
58 Correct 96 ms 12244 KB Output is correct
59 Correct 136 ms 12184 KB Output is correct
60 Correct 170 ms 15560 KB Output is correct
61 Correct 140 ms 12236 KB Output is correct
62 Correct 140 ms 14844 KB Output is correct
63 Correct 104 ms 10960 KB Output is correct
64 Correct 141 ms 12248 KB Output is correct
65 Correct 191 ms 15312 KB Output is correct

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 9560 KB Output is correct
2 Correct 3 ms 9564 KB Output is correct
3 Correct 2 ms 9564 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 3 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 9564 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 9564 KB Output is correct
19 Correct 3 ms 9564 KB Output is correct
20 Correct 3 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 9816 KB Output is correct
31 Correct 3 ms 9820 KB Output is correct
32 Correct 2 ms 9812 KB Output is correct
33 Correct 4 ms 9564 KB Output is correct
34 Correct 3 ms 9820 KB Output is correct
35 Correct 3 ms 9820 KB Output is correct
36 Correct 3 ms 9564 KB Output is correct
37 Correct 5 ms 9624 KB Output is correct
38 Correct 4 ms 9820 KB Output is correct
39 Correct 3 ms 9820 KB Output is correct
40 Correct 3 ms 9564 KB Output is correct
41 Correct 3 ms 9820 KB Output is correct
42 Correct 4 ms 9564 KB Output is correct
43 Correct 3 ms 9564 KB Output is correct
44 Correct 3 ms 9564 KB Output is correct
45 Correct 4 ms 9820 KB Output is correct
46 Correct 3 ms 9768 KB Output is correct
47 Correct 3 ms 9560 KB Output is correct
48 Correct 4 ms 9564 KB Output is correct
49 Correct 5 ms 9820 KB Output is correct
50 Correct 3 ms 9820 KB Output is correct
51 Correct 4 ms 9768 KB Output is correct
52 Correct 3 ms 9560 KB Output is correct
53 Correct 4 ms 9820 KB Output is correct
54 Correct 4 ms 9820 KB Output is correct
55 Correct 119 ms 12552 KB Output is correct
56 Correct 213 ms 14624 KB Output is correct
57 Correct 119 ms 16024 KB Output is correct
58 Correct 162 ms 12492 KB Output is correct
59 Correct 136 ms 12488 KB Output is correct
60 Correct 134 ms 11728 KB Output is correct
61 Correct 166 ms 12532 KB Output is correct
62 Correct 197 ms 15500 KB Output is correct
63 Correct 170 ms 12448 KB Output is correct
64 Correct 170 ms 14808 KB Output is correct
65 Correct 133 ms 10976 KB Output is correct
66 Correct 137 ms 11692 KB Output is correct
67 Correct 186 ms 14804 KB Output is correct
68 Correct 199 ms 16020 KB Output is correct
69 Correct 122 ms 12440 KB Output is correct
70 Correct 181 ms 15304 KB Output is correct
71 Correct 1485 ms 16356 KB Output is correct
72 Correct 117 ms 12540 KB Output is correct
73 Correct 140 ms 12440 KB Output is correct
74 Correct 177 ms 12788 KB Output is correct
75 Correct 192 ms 15000 KB Output is correct
76 Correct 164 ms 12144 KB Output is correct
77 Correct 168 ms 14728 KB Output is correct
78 Correct 171 ms 15816 KB Output is correct
79 Correct 137 ms 10912 KB Output is correct
80 Correct 156 ms 12184 KB Output is correct
81 Correct 207 ms 14796 KB Output is correct
82 Correct 200 ms 16328 KB Output is correct
83 Correct 96 ms 12236 KB Output is correct
84 Correct 144 ms 16516 KB Output is correct
85 Correct 88 ms 15060 KB Output is correct
86 Correct 96 ms 12244 KB Output is correct
87 Correct 136 ms 12184 KB Output is correct
88 Correct 170 ms 15560 KB Output is correct
89 Correct 140 ms 12236 KB Output is correct
90 Correct 140 ms 14844 KB Output is correct
91 Correct 104 ms 10960 KB Output is correct
92 Correct 141 ms 12248 KB Output is correct
93 Correct 191 ms 15312 KB Output is correct
94 Correct 128 ms 12432 KB Output is correct
95 Execution timed out 2062 ms 15316 KB Time limit exceeded
96 Halted 0 ms 0 KB -