oj.uz

Submission #926271

# Submission time Handle Problem Language Result Execution time Memory
926271 2024-02-12T18:11:01 Z mansur Joker (BOI20_joker) C++17
71 / 100
 186 ms 28116 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;
	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)]++;
	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();
	if (!ps[m]) return;
	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();
	}
}

Compilation message

Joker.cpp:129:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  129 | 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 16476 KB Output is correct
4 Correct 4 ms 16476 KB Output is correct
5 Correct 4 ms 16388 KB Output is correct
6 Correct 3 ms 16476 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 4 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 16476 KB Output is correct
12 Correct 3 ms 16512 KB Output is correct
13 Correct 3 ms 16476 KB Output is correct
14 Correct 3 ms 16472 KB Output is correct
15 Correct 3 ms 16476 KB Output is correct
16 Correct 3 ms 16472 KB Output is correct
17 Correct 3 ms 16476 KB Output is correct
18 Correct 3 ms 16476 KB Output is correct
19 Correct 3 ms 16476 KB Output is correct
20 Correct 3 ms 16360 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 3 ms 16476 KB Output is correct
23 Correct 3 ms 16472 KB Output is correct
24 Correct 4 ms 16476 KB Output is correct
25 Correct 3 ms 16472 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 16476 KB Output is correct
4 Correct 4 ms 16476 KB Output is correct
5 Correct 4 ms 16388 KB Output is correct
6 Correct 3 ms 16476 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 4 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 16476 KB Output is correct
12 Correct 3 ms 16512 KB Output is correct
13 Correct 3 ms 16476 KB Output is correct
14 Correct 3 ms 16472 KB Output is correct
15 Correct 3 ms 16476 KB Output is correct
16 Correct 3 ms 16472 KB Output is correct
17 Correct 3 ms 16476 KB Output is correct
18 Correct 3 ms 16476 KB Output is correct
19 Correct 3 ms 16476 KB Output is correct
20 Correct 3 ms 16360 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 3 ms 16476 KB Output is correct
23 Correct 3 ms 16472 KB Output is correct
24 Correct 4 ms 16476 KB Output is correct
25 Correct 3 ms 16472 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 4 ms 16476 KB Output is correct
30 Correct 4 ms 16472 KB Output is correct
31 Correct 4 ms 16476 KB Output is correct
32 Correct 4 ms 16476 KB Output is correct
33 Correct 4 ms 16476 KB Output is correct
34 Correct 4 ms 16476 KB Output is correct
35 Correct 4 ms 16476 KB Output is correct
36 Correct 4 ms 16476 KB Output is correct
37 Correct 4 ms 16472 KB Output is correct
38 Correct 4 ms 16476 KB Output is correct
39 Correct 4 ms 16476 KB Output is correct
40 Correct 4 ms 16476 KB Output is correct
41 Correct 4 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 16564 KB Output is correct
45 Correct 4 ms 16476 KB Output is correct
46 Correct 4 ms 16476 KB Output is correct
47 Correct 4 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 5 ms 16476 KB Output is correct
52 Correct 4 ms 16476 KB Output is correct
53 Correct 4 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 119 ms 20972 KB Output is correct
4 Correct 63 ms 26348 KB Output is correct
5 Correct 118 ms 25544 KB Output is correct
6 Correct 116 ms 21228 KB Output is correct
7 Correct 130 ms 21292 KB Output is correct
8 Correct 125 ms 20460 KB Output is correct
9 Correct 137 ms 21452 KB Output is correct
10 Correct 177 ms 28088 KB Output is correct
11 Correct 146 ms 21440 KB Output is correct
12 Correct 156 ms 25848 KB Output is correct
13 Correct 135 ms 19772 KB Output is correct
14 Correct 128 ms 20628 KB Output is correct
15 Correct 177 ms 22732 KB Output is correct
16 Correct 186 ms 28116 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 16476 KB Output is correct
4 Correct 4 ms 16476 KB Output is correct
5 Correct 4 ms 16388 KB Output is correct
6 Correct 3 ms 16476 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 4 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 16476 KB Output is correct
12 Correct 3 ms 16512 KB Output is correct
13 Correct 3 ms 16476 KB Output is correct
14 Correct 3 ms 16472 KB Output is correct
15 Correct 3 ms 16476 KB Output is correct
16 Correct 3 ms 16472 KB Output is correct
17 Correct 3 ms 16476 KB Output is correct
18 Correct 3 ms 16476 KB Output is correct
19 Correct 3 ms 16476 KB Output is correct
20 Correct 3 ms 16360 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 3 ms 16476 KB Output is correct
23 Correct 3 ms 16472 KB Output is correct
24 Correct 4 ms 16476 KB Output is correct
25 Correct 3 ms 16472 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 119 ms 20972 KB Output is correct
30 Correct 63 ms 26348 KB Output is correct
31 Correct 118 ms 25544 KB Output is correct
32 Correct 116 ms 21228 KB Output is correct
33 Correct 130 ms 21292 KB Output is correct
34 Correct 125 ms 20460 KB Output is correct
35 Correct 137 ms 21452 KB Output is correct
36 Correct 177 ms 28088 KB Output is correct
37 Correct 146 ms 21440 KB Output is correct
38 Correct 156 ms 25848 KB Output is correct
39 Correct 135 ms 19772 KB Output is correct
40 Correct 128 ms 20628 KB Output is correct
41 Correct 177 ms 22732 KB Output is correct
42 Correct 186 ms 28116 KB Output is correct
43 Correct 120 ms 20940 KB Output is correct
44 Correct 64 ms 25924 KB Output is correct
45 Correct 163 ms 27852 KB Output is correct
46 Correct 131 ms 21292 KB Output is correct
47 Correct 131 ms 21424 KB Output is correct
48 Correct 151 ms 21432 KB Output is correct
49 Correct 184 ms 27852 KB Output is correct
50 Correct 140 ms 20884 KB Output is correct
51 Correct 153 ms 24556 KB Output is correct
52 Correct 169 ms 27888 KB Output is correct
53 Correct 142 ms 19696 KB Output is correct
54 Correct 146 ms 20940 KB Output is correct
55 Correct 177 ms 23760 KB Output is correct
56 Correct 184 ms 27092 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 16476 KB Output is correct
4 Correct 4 ms 16476 KB Output is correct
5 Correct 4 ms 16388 KB Output is correct
6 Correct 3 ms 16476 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 4 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 16476 KB Output is correct
12 Correct 3 ms 16512 KB Output is correct
13 Correct 3 ms 16476 KB Output is correct
14 Correct 3 ms 16472 KB Output is correct
15 Correct 3 ms 16476 KB Output is correct
16 Correct 3 ms 16472 KB Output is correct
17 Correct 3 ms 16476 KB Output is correct
18 Correct 3 ms 16476 KB Output is correct
19 Correct 3 ms 16476 KB Output is correct
20 Correct 3 ms 16360 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 3 ms 16476 KB Output is correct
23 Correct 3 ms 16472 KB Output is correct
24 Correct 4 ms 16476 KB Output is correct
25 Correct 3 ms 16472 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 4 ms 16476 KB Output is correct
30 Correct 4 ms 16472 KB Output is correct
31 Correct 4 ms 16476 KB Output is correct
32 Correct 4 ms 16476 KB Output is correct
33 Correct 4 ms 16476 KB Output is correct
34 Correct 4 ms 16476 KB Output is correct
35 Correct 4 ms 16476 KB Output is correct
36 Correct 4 ms 16476 KB Output is correct
37 Correct 4 ms 16472 KB Output is correct
38 Correct 4 ms 16476 KB Output is correct
39 Correct 4 ms 16476 KB Output is correct
40 Correct 4 ms 16476 KB Output is correct
41 Correct 4 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 16564 KB Output is correct
45 Correct 4 ms 16476 KB Output is correct
46 Correct 4 ms 16476 KB Output is correct
47 Correct 4 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 5 ms 16476 KB Output is correct
52 Correct 4 ms 16476 KB Output is correct
53 Correct 4 ms 16476 KB Output is correct
54 Correct 4 ms 16476 KB Output is correct
55 Correct 94 ms 20292 KB Output is correct
56 Correct 42 ms 25288 KB Output is correct
57 Correct 93 ms 26068 KB Output is correct
58 Correct 93 ms 21032 KB Output is correct
59 Correct 125 ms 20680 KB Output is correct
60 Correct 160 ms 25568 KB Output is correct
61 Correct 133 ms 20756 KB Output is correct
62 Correct 131 ms 26064 KB Output is correct
63 Correct 104 ms 19408 KB Output is correct
64 Correct 135 ms 20960 KB Output is correct
65 Correct 156 ms 26064 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 16476 KB Output is correct
4 Correct 4 ms 16476 KB Output is correct
5 Correct 4 ms 16388 KB Output is correct
6 Correct 3 ms 16476 KB Output is correct
7 Correct 3 ms 16476 KB Output is correct
8 Correct 4 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 16476 KB Output is correct
12 Correct 3 ms 16512 KB Output is correct
13 Correct 3 ms 16476 KB Output is correct
14 Correct 3 ms 16472 KB Output is correct
15 Correct 3 ms 16476 KB Output is correct
16 Correct 3 ms 16472 KB Output is correct
17 Correct 3 ms 16476 KB Output is correct
18 Correct 3 ms 16476 KB Output is correct
19 Correct 3 ms 16476 KB Output is correct
20 Correct 3 ms 16360 KB Output is correct
21 Correct 3 ms 16476 KB Output is correct
22 Correct 3 ms 16476 KB Output is correct
23 Correct 3 ms 16472 KB Output is correct
24 Correct 4 ms 16476 KB Output is correct
25 Correct 3 ms 16472 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 4 ms 16476 KB Output is correct
30 Correct 4 ms 16472 KB Output is correct
31 Correct 4 ms 16476 KB Output is correct
32 Correct 4 ms 16476 KB Output is correct
33 Correct 4 ms 16476 KB Output is correct
34 Correct 4 ms 16476 KB Output is correct
35 Correct 4 ms 16476 KB Output is correct
36 Correct 4 ms 16476 KB Output is correct
37 Correct 4 ms 16472 KB Output is correct
38 Correct 4 ms 16476 KB Output is correct
39 Correct 4 ms 16476 KB Output is correct
40 Correct 4 ms 16476 KB Output is correct
41 Correct 4 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 16564 KB Output is correct
45 Correct 4 ms 16476 KB Output is correct
46 Correct 4 ms 16476 KB Output is correct
47 Correct 4 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 5 ms 16476 KB Output is correct
52 Correct 4 ms 16476 KB Output is correct
53 Correct 4 ms 16476 KB Output is correct
54 Correct 4 ms 16476 KB Output is correct
55 Correct 119 ms 20972 KB Output is correct
56 Correct 63 ms 26348 KB Output is correct
57 Correct 118 ms 25544 KB Output is correct
58 Correct 116 ms 21228 KB Output is correct
59 Correct 130 ms 21292 KB Output is correct
60 Correct 125 ms 20460 KB Output is correct
61 Correct 137 ms 21452 KB Output is correct
62 Correct 177 ms 28088 KB Output is correct
63 Correct 146 ms 21440 KB Output is correct
64 Correct 156 ms 25848 KB Output is correct
65 Correct 135 ms 19772 KB Output is correct
66 Correct 128 ms 20628 KB Output is correct
67 Correct 177 ms 22732 KB Output is correct
68 Correct 186 ms 28116 KB Output is correct
69 Correct 120 ms 20940 KB Output is correct
70 Correct 64 ms 25924 KB Output is correct
71 Correct 163 ms 27852 KB Output is correct
72 Correct 131 ms 21292 KB Output is correct
73 Correct 131 ms 21424 KB Output is correct
74 Correct 151 ms 21432 KB Output is correct
75 Correct 184 ms 27852 KB Output is correct
76 Correct 140 ms 20884 KB Output is correct
77 Correct 153 ms 24556 KB Output is correct
78 Correct 169 ms 27888 KB Output is correct
79 Correct 142 ms 19696 KB Output is correct
80 Correct 146 ms 20940 KB Output is correct
81 Correct 177 ms 23760 KB Output is correct
82 Correct 184 ms 27092 KB Output is correct
83 Correct 94 ms 20292 KB Output is correct
84 Correct 42 ms 25288 KB Output is correct
85 Correct 93 ms 26068 KB Output is correct
86 Correct 93 ms 21032 KB Output is correct
87 Correct 125 ms 20680 KB Output is correct
88 Correct 160 ms 25568 KB Output is correct
89 Correct 133 ms 20756 KB Output is correct
90 Correct 131 ms 26064 KB Output is correct
91 Correct 104 ms 19408 KB Output is correct
92 Correct 135 ms 20960 KB Output is correct
93 Correct 156 ms 26064 KB Output is correct
94 Correct 122 ms 21064 KB Output is correct
95 Incorrect 116 ms 27644 KB Output isn't correct
96 Halted 0 ms 0 KB -