oj.uz

Submission #926238

# Submission time Handle Problem Language Result Execution time Memory
926238 2024-02-12T17:40:59 Z mansur Joker (BOI20_joker) C++17
71 / 100
 2000 ms 18892 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 = 5e5 + 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) & 1)};
}

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) & 1);  	
	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:126:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  126 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12380 KB Output is correct
2 Correct 3 ms 12380 KB Output is correct
3 Correct 2 ms 12592 KB Output is correct
4 Correct 2 ms 12380 KB Output is correct
5 Correct 2 ms 12376 KB Output is correct
6 Correct 3 ms 12376 KB Output is correct
7 Correct 2 ms 12380 KB Output is correct
8 Correct 4 ms 12380 KB Output is correct
9 Correct 3 ms 12376 KB Output is correct
10 Correct 2 ms 12376 KB Output is correct
11 Correct 2 ms 12380 KB Output is correct
12 Correct 3 ms 12380 KB Output is correct
13 Correct 4 ms 12380 KB Output is correct
14 Correct 3 ms 12380 KB Output is correct
15 Correct 2 ms 12380 KB Output is correct
16 Correct 2 ms 12380 KB Output is correct
17 Correct 3 ms 12380 KB Output is correct
18 Correct 2 ms 12380 KB Output is correct
19 Correct 3 ms 12380 KB Output is correct
20 Correct 2 ms 12380 KB Output is correct
21 Correct 3 ms 12380 KB Output is correct
22 Correct 2 ms 12380 KB Output is correct
23 Correct 3 ms 12380 KB Output is correct
24 Correct 3 ms 12380 KB Output is correct
25 Correct 2 ms 12380 KB Output is correct
26 Correct 2 ms 12380 KB Output is correct
27 Correct 2 ms 12380 KB Output is correct
28 Correct 3 ms 12436 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12380 KB Output is correct
2 Correct 3 ms 12380 KB Output is correct
3 Correct 2 ms 12592 KB Output is correct
4 Correct 2 ms 12380 KB Output is correct
5 Correct 2 ms 12376 KB Output is correct
6 Correct 3 ms 12376 KB Output is correct
7 Correct 2 ms 12380 KB Output is correct
8 Correct 4 ms 12380 KB Output is correct
9 Correct 3 ms 12376 KB Output is correct
10 Correct 2 ms 12376 KB Output is correct
11 Correct 2 ms 12380 KB Output is correct
12 Correct 3 ms 12380 KB Output is correct
13 Correct 4 ms 12380 KB Output is correct
14 Correct 3 ms 12380 KB Output is correct
15 Correct 2 ms 12380 KB Output is correct
16 Correct 2 ms 12380 KB Output is correct
17 Correct 3 ms 12380 KB Output is correct
18 Correct 2 ms 12380 KB Output is correct
19 Correct 3 ms 12380 KB Output is correct
20 Correct 2 ms 12380 KB Output is correct
21 Correct 3 ms 12380 KB Output is correct
22 Correct 2 ms 12380 KB Output is correct
23 Correct 3 ms 12380 KB Output is correct
24 Correct 3 ms 12380 KB Output is correct
25 Correct 2 ms 12380 KB Output is correct
26 Correct 2 ms 12380 KB Output is correct
27 Correct 2 ms 12380 KB Output is correct
28 Correct 3 ms 12436 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 3 ms 12632 KB Output is correct
31 Correct 4 ms 12888 KB Output is correct
32 Correct 4 ms 12632 KB Output is correct
33 Correct 3 ms 12636 KB Output is correct
34 Correct 3 ms 12636 KB Output is correct
35 Correct 4 ms 12632 KB Output is correct
36 Correct 3 ms 12636 KB Output is correct
37 Correct 4 ms 12636 KB Output is correct
38 Correct 4 ms 12636 KB Output is correct
39 Correct 3 ms 12636 KB Output is correct
40 Correct 3 ms 12636 KB Output is correct
41 Correct 3 ms 12636 KB Output is correct
42 Correct 4 ms 12636 KB Output is correct
43 Correct 3 ms 12636 KB Output is correct
44 Correct 3 ms 12636 KB Output is correct
45 Correct 4 ms 12564 KB Output is correct
46 Correct 3 ms 12636 KB Output is correct
47 Correct 3 ms 12636 KB Output is correct
48 Correct 3 ms 12632 KB Output is correct
49 Correct 4 ms 12632 KB Output is correct
50 Correct 4 ms 12636 KB Output is correct
51 Correct 4 ms 12636 KB Output is correct
52 Correct 4 ms 12636 KB Output is correct
53 Correct 4 ms 12888 KB Output is correct
54 Correct 3 ms 12636 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12380 KB Output is correct
2 Correct 3 ms 12380 KB Output is correct
3 Correct 116 ms 15056 KB Output is correct
4 Correct 170 ms 18336 KB Output is correct
5 Correct 115 ms 18132 KB Output is correct
6 Correct 117 ms 15060 KB Output is correct
7 Correct 139 ms 14992 KB Output is correct
8 Correct 123 ms 14540 KB Output is correct
9 Correct 139 ms 15028 KB Output is correct
10 Correct 191 ms 18120 KB Output is correct
11 Correct 143 ms 15052 KB Output is correct
12 Correct 153 ms 18388 KB Output is correct
13 Correct 131 ms 13780 KB Output is correct
14 Correct 126 ms 14424 KB Output is correct
15 Correct 171 ms 18280 KB Output is correct
16 Correct 190 ms 18892 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12380 KB Output is correct
2 Correct 3 ms 12380 KB Output is correct
3 Correct 2 ms 12592 KB Output is correct
4 Correct 2 ms 12380 KB Output is correct
5 Correct 2 ms 12376 KB Output is correct
6 Correct 3 ms 12376 KB Output is correct
7 Correct 2 ms 12380 KB Output is correct
8 Correct 4 ms 12380 KB Output is correct
9 Correct 3 ms 12376 KB Output is correct
10 Correct 2 ms 12376 KB Output is correct
11 Correct 2 ms 12380 KB Output is correct
12 Correct 3 ms 12380 KB Output is correct
13 Correct 4 ms 12380 KB Output is correct
14 Correct 3 ms 12380 KB Output is correct
15 Correct 2 ms 12380 KB Output is correct
16 Correct 2 ms 12380 KB Output is correct
17 Correct 3 ms 12380 KB Output is correct
18 Correct 2 ms 12380 KB Output is correct
19 Correct 3 ms 12380 KB Output is correct
20 Correct 2 ms 12380 KB Output is correct
21 Correct 3 ms 12380 KB Output is correct
22 Correct 2 ms 12380 KB Output is correct
23 Correct 3 ms 12380 KB Output is correct
24 Correct 3 ms 12380 KB Output is correct
25 Correct 2 ms 12380 KB Output is correct
26 Correct 2 ms 12380 KB Output is correct
27 Correct 2 ms 12380 KB Output is correct
28 Correct 3 ms 12436 KB Output is correct
29 Correct 116 ms 15056 KB Output is correct
30 Correct 170 ms 18336 KB Output is correct
31 Correct 115 ms 18132 KB Output is correct
32 Correct 117 ms 15060 KB Output is correct
33 Correct 139 ms 14992 KB Output is correct
34 Correct 123 ms 14540 KB Output is correct
35 Correct 139 ms 15028 KB Output is correct
36 Correct 191 ms 18120 KB Output is correct
37 Correct 143 ms 15052 KB Output is correct
38 Correct 153 ms 18388 KB Output is correct
39 Correct 131 ms 13780 KB Output is correct
40 Correct 126 ms 14424 KB Output is correct
41 Correct 171 ms 18280 KB Output is correct
42 Correct 190 ms 18892 KB Output is correct
43 Correct 123 ms 15056 KB Output is correct
44 Correct 185 ms 17100 KB Output is correct
45 Correct 1340 ms 18164 KB Output is correct
46 Correct 124 ms 15048 KB Output is correct
47 Correct 129 ms 15056 KB Output is correct
48 Correct 161 ms 15004 KB Output is correct
49 Correct 194 ms 17100 KB Output is correct
50 Correct 142 ms 14760 KB Output is correct
51 Correct 152 ms 18124 KB Output is correct
52 Correct 169 ms 18080 KB Output is correct
53 Correct 143 ms 13800 KB Output is correct
54 Correct 147 ms 14660 KB Output is correct
55 Correct 203 ms 18672 KB Output is correct
56 Correct 181 ms 18124 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12380 KB Output is correct
2 Correct 3 ms 12380 KB Output is correct
3 Correct 2 ms 12592 KB Output is correct
4 Correct 2 ms 12380 KB Output is correct
5 Correct 2 ms 12376 KB Output is correct
6 Correct 3 ms 12376 KB Output is correct
7 Correct 2 ms 12380 KB Output is correct
8 Correct 4 ms 12380 KB Output is correct
9 Correct 3 ms 12376 KB Output is correct
10 Correct 2 ms 12376 KB Output is correct
11 Correct 2 ms 12380 KB Output is correct
12 Correct 3 ms 12380 KB Output is correct
13 Correct 4 ms 12380 KB Output is correct
14 Correct 3 ms 12380 KB Output is correct
15 Correct 2 ms 12380 KB Output is correct
16 Correct 2 ms 12380 KB Output is correct
17 Correct 3 ms 12380 KB Output is correct
18 Correct 2 ms 12380 KB Output is correct
19 Correct 3 ms 12380 KB Output is correct
20 Correct 2 ms 12380 KB Output is correct
21 Correct 3 ms 12380 KB Output is correct
22 Correct 2 ms 12380 KB Output is correct
23 Correct 3 ms 12380 KB Output is correct
24 Correct 3 ms 12380 KB Output is correct
25 Correct 2 ms 12380 KB Output is correct
26 Correct 2 ms 12380 KB Output is correct
27 Correct 2 ms 12380 KB Output is correct
28 Correct 3 ms 12436 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 3 ms 12632 KB Output is correct
31 Correct 4 ms 12888 KB Output is correct
32 Correct 4 ms 12632 KB Output is correct
33 Correct 3 ms 12636 KB Output is correct
34 Correct 3 ms 12636 KB Output is correct
35 Correct 4 ms 12632 KB Output is correct
36 Correct 3 ms 12636 KB Output is correct
37 Correct 4 ms 12636 KB Output is correct
38 Correct 4 ms 12636 KB Output is correct
39 Correct 3 ms 12636 KB Output is correct
40 Correct 3 ms 12636 KB Output is correct
41 Correct 3 ms 12636 KB Output is correct
42 Correct 4 ms 12636 KB Output is correct
43 Correct 3 ms 12636 KB Output is correct
44 Correct 3 ms 12636 KB Output is correct
45 Correct 4 ms 12564 KB Output is correct
46 Correct 3 ms 12636 KB Output is correct
47 Correct 3 ms 12636 KB Output is correct
48 Correct 3 ms 12632 KB Output is correct
49 Correct 4 ms 12632 KB Output is correct
50 Correct 4 ms 12636 KB Output is correct
51 Correct 4 ms 12636 KB Output is correct
52 Correct 4 ms 12636 KB Output is correct
53 Correct 4 ms 12888 KB Output is correct
54 Correct 3 ms 12636 KB Output is correct
55 Correct 104 ms 14760 KB Output is correct
56 Correct 164 ms 17828 KB Output is correct
57 Correct 88 ms 17296 KB Output is correct
58 Correct 93 ms 14544 KB Output is correct
59 Correct 137 ms 14764 KB Output is correct
60 Correct 155 ms 17736 KB Output is correct
61 Correct 150 ms 14540 KB Output is correct
62 Correct 138 ms 18128 KB Output is correct
63 Correct 113 ms 13532 KB Output is correct
64 Correct 132 ms 14616 KB Output is correct
65 Correct 176 ms 18072 KB Output is correct

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12380 KB Output is correct
2 Correct 3 ms 12380 KB Output is correct
3 Correct 2 ms 12592 KB Output is correct
4 Correct 2 ms 12380 KB Output is correct
5 Correct 2 ms 12376 KB Output is correct
6 Correct 3 ms 12376 KB Output is correct
7 Correct 2 ms 12380 KB Output is correct
8 Correct 4 ms 12380 KB Output is correct
9 Correct 3 ms 12376 KB Output is correct
10 Correct 2 ms 12376 KB Output is correct
11 Correct 2 ms 12380 KB Output is correct
12 Correct 3 ms 12380 KB Output is correct
13 Correct 4 ms 12380 KB Output is correct
14 Correct 3 ms 12380 KB Output is correct
15 Correct 2 ms 12380 KB Output is correct
16 Correct 2 ms 12380 KB Output is correct
17 Correct 3 ms 12380 KB Output is correct
18 Correct 2 ms 12380 KB Output is correct
19 Correct 3 ms 12380 KB Output is correct
20 Correct 2 ms 12380 KB Output is correct
21 Correct 3 ms 12380 KB Output is correct
22 Correct 2 ms 12380 KB Output is correct
23 Correct 3 ms 12380 KB Output is correct
24 Correct 3 ms 12380 KB Output is correct
25 Correct 2 ms 12380 KB Output is correct
26 Correct 2 ms 12380 KB Output is correct
27 Correct 2 ms 12380 KB Output is correct
28 Correct 3 ms 12436 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 3 ms 12632 KB Output is correct
31 Correct 4 ms 12888 KB Output is correct
32 Correct 4 ms 12632 KB Output is correct
33 Correct 3 ms 12636 KB Output is correct
34 Correct 3 ms 12636 KB Output is correct
35 Correct 4 ms 12632 KB Output is correct
36 Correct 3 ms 12636 KB Output is correct
37 Correct 4 ms 12636 KB Output is correct
38 Correct 4 ms 12636 KB Output is correct
39 Correct 3 ms 12636 KB Output is correct
40 Correct 3 ms 12636 KB Output is correct
41 Correct 3 ms 12636 KB Output is correct
42 Correct 4 ms 12636 KB Output is correct
43 Correct 3 ms 12636 KB Output is correct
44 Correct 3 ms 12636 KB Output is correct
45 Correct 4 ms 12564 KB Output is correct
46 Correct 3 ms 12636 KB Output is correct
47 Correct 3 ms 12636 KB Output is correct
48 Correct 3 ms 12632 KB Output is correct
49 Correct 4 ms 12632 KB Output is correct
50 Correct 4 ms 12636 KB Output is correct
51 Correct 4 ms 12636 KB Output is correct
52 Correct 4 ms 12636 KB Output is correct
53 Correct 4 ms 12888 KB Output is correct
54 Correct 3 ms 12636 KB Output is correct
55 Correct 116 ms 15056 KB Output is correct
56 Correct 170 ms 18336 KB Output is correct
57 Correct 115 ms 18132 KB Output is correct
58 Correct 117 ms 15060 KB Output is correct
59 Correct 139 ms 14992 KB Output is correct
60 Correct 123 ms 14540 KB Output is correct
61 Correct 139 ms 15028 KB Output is correct
62 Correct 191 ms 18120 KB Output is correct
63 Correct 143 ms 15052 KB Output is correct
64 Correct 153 ms 18388 KB Output is correct
65 Correct 131 ms 13780 KB Output is correct
66 Correct 126 ms 14424 KB Output is correct
67 Correct 171 ms 18280 KB Output is correct
68 Correct 190 ms 18892 KB Output is correct
69 Correct 123 ms 15056 KB Output is correct
70 Correct 185 ms 17100 KB Output is correct
71 Correct 1340 ms 18164 KB Output is correct
72 Correct 124 ms 15048 KB Output is correct
73 Correct 129 ms 15056 KB Output is correct
74 Correct 161 ms 15004 KB Output is correct
75 Correct 194 ms 17100 KB Output is correct
76 Correct 142 ms 14760 KB Output is correct
77 Correct 152 ms 18124 KB Output is correct
78 Correct 169 ms 18080 KB Output is correct
79 Correct 143 ms 13800 KB Output is correct
80 Correct 147 ms 14660 KB Output is correct
81 Correct 203 ms 18672 KB Output is correct
82 Correct 181 ms 18124 KB Output is correct
83 Correct 104 ms 14760 KB Output is correct
84 Correct 164 ms 17828 KB Output is correct
85 Correct 88 ms 17296 KB Output is correct
86 Correct 93 ms 14544 KB Output is correct
87 Correct 137 ms 14764 KB Output is correct
88 Correct 155 ms 17736 KB Output is correct
89 Correct 150 ms 14540 KB Output is correct
90 Correct 138 ms 18128 KB Output is correct
91 Correct 113 ms 13532 KB Output is correct
92 Correct 132 ms 14616 KB Output is correct
93 Correct 176 ms 18072 KB Output is correct
94 Correct 129 ms 14976 KB Output is correct
95 Execution timed out 2089 ms 18084 KB Time limit exceeded
96 Halted 0 ms 0 KB -