Submission #925680

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
925680	2024-02-12T07:23:00 Z	vjudge1	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	16272 KB

Joker

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#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 = 3e5 + 1, mod = 998244353;

const ll inf = 1e9;
 
double eps = 1e-15;
                                                
bool flg = 0;

int is[N];
bool ok, was[N];
vector<pii> g[N];

void dfs(int u, int l, int r) {
	was[u] = 1;
	for (auto [to, id]: g[u]) {
		if (l <= id && id <= r) continue;
		if (!was[to]) {
			is[to] = 1 - is[u];
			dfs(to, l, r);
		}else if (is[to] == is[u]) ok = 0;
	}
}

void slv() {
	int n, m, q;
	cin >> n >> m >> q;
	for (int i = 1; i <= m; i++) {
		int u, v;
		cin >> u >> v;
		g[u].push_back({v, i});
		g[v].push_back({u, i});
	}
	while (q--) {
		int l, r;
		cin >> l >> r;
		ok = 1;
		for (int i = 1; i <= n; i++) {
			if (!was[i]) 
				dfs(i, l, r);
		}
		if (ok) cout << "NO\n";
		else cout << "YES\n";
		for (int i = 1; i <= n; i++) 
			was[i] = is[i] = 0;
	}
}                                                                           
 
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: In function 'void slv()':
Joker.cpp:66:19: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   66 |    was[i] = is[i] = 0;
      |             ~~~~~~^~~
Joker.cpp: At global scope:
Joker.cpp:70:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   70 | main() {
      | ^~~~

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8796 KB	Output is correct
2	Correct	3 ms	8796 KB	Output is correct
3	Correct	3 ms	8796 KB	Output is correct
4	Correct	2 ms	8796 KB	Output is correct
5	Correct	2 ms	8796 KB	Output is correct
6	Correct	3 ms	8796 KB	Output is correct
7	Correct	3 ms	8796 KB	Output is correct
8	Correct	3 ms	8796 KB	Output is correct
9	Correct	3 ms	8792 KB	Output is correct
10	Correct	3 ms	8792 KB	Output is correct
11	Correct	3 ms	8792 KB	Output is correct
12	Correct	3 ms	8796 KB	Output is correct
13	Correct	3 ms	8796 KB	Output is correct
14	Correct	3 ms	8796 KB	Output is correct
15	Correct	3 ms	8796 KB	Output is correct
16	Correct	3 ms	8792 KB	Output is correct
17	Correct	3 ms	8796 KB	Output is correct
18	Correct	4 ms	8796 KB	Output is correct
19	Correct	3 ms	8796 KB	Output is correct
20	Correct	4 ms	8796 KB	Output is correct
21	Correct	3 ms	8796 KB	Output is correct
22	Correct	4 ms	8796 KB	Output is correct
23	Correct	3 ms	8796 KB	Output is correct
24	Correct	3 ms	8792 KB	Output is correct
25	Correct	3 ms	8796 KB	Output is correct
26	Correct	4 ms	8796 KB	Output is correct
27	Correct	3 ms	8796 KB	Output is correct
28	Correct	3 ms	8796 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8796 KB	Output is correct
2	Correct	3 ms	8796 KB	Output is correct
3	Correct	3 ms	8796 KB	Output is correct
4	Correct	2 ms	8796 KB	Output is correct
5	Correct	2 ms	8796 KB	Output is correct
6	Correct	3 ms	8796 KB	Output is correct
7	Correct	3 ms	8796 KB	Output is correct
8	Correct	3 ms	8796 KB	Output is correct
9	Correct	3 ms	8792 KB	Output is correct
10	Correct	3 ms	8792 KB	Output is correct
11	Correct	3 ms	8792 KB	Output is correct
12	Correct	3 ms	8796 KB	Output is correct
13	Correct	3 ms	8796 KB	Output is correct
14	Correct	3 ms	8796 KB	Output is correct
15	Correct	3 ms	8796 KB	Output is correct
16	Correct	3 ms	8792 KB	Output is correct
17	Correct	3 ms	8796 KB	Output is correct
18	Correct	4 ms	8796 KB	Output is correct
19	Correct	3 ms	8796 KB	Output is correct
20	Correct	4 ms	8796 KB	Output is correct
21	Correct	3 ms	8796 KB	Output is correct
22	Correct	4 ms	8796 KB	Output is correct
23	Correct	3 ms	8796 KB	Output is correct
24	Correct	3 ms	8792 KB	Output is correct
25	Correct	3 ms	8796 KB	Output is correct
26	Correct	4 ms	8796 KB	Output is correct
27	Correct	3 ms	8796 KB	Output is correct
28	Correct	3 ms	8796 KB	Output is correct
29	Correct	43 ms	8796 KB	Output is correct
30	Correct	82 ms	8792 KB	Output is correct
31	Correct	87 ms	8796 KB	Output is correct
32	Correct	74 ms	8796 KB	Output is correct
33	Correct	61 ms	8796 KB	Output is correct
34	Correct	87 ms	8804 KB	Output is correct
35	Correct	94 ms	8904 KB	Output is correct
36	Correct	25 ms	8792 KB	Output is correct
37	Correct	54 ms	8924 KB	Output is correct
38	Correct	42 ms	8796 KB	Output is correct
39	Correct	60 ms	8792 KB	Output is correct
40	Correct	63 ms	8796 KB	Output is correct
41	Correct	65 ms	8924 KB	Output is correct
42	Correct	71 ms	8796 KB	Output is correct
43	Correct	65 ms	8792 KB	Output is correct
44	Correct	79 ms	8796 KB	Output is correct
45	Correct	84 ms	8908 KB	Output is correct
46	Correct	86 ms	8796 KB	Output is correct
47	Correct	60 ms	8796 KB	Output is correct
48	Correct	65 ms	8796 KB	Output is correct
49	Correct	72 ms	8796 KB	Output is correct
50	Correct	78 ms	8796 KB	Output is correct
51	Correct	64 ms	8908 KB	Output is correct
52	Correct	73 ms	8796 KB	Output is correct
53	Correct	84 ms	8912 KB	Output is correct
54	Correct	92 ms	8796 KB	Output is correct

Subtask #3
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8796 KB	Output is correct
2	Correct	3 ms	8796 KB	Output is correct
3	Execution timed out	2055 ms	15564 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8796 KB	Output is correct
2	Correct	3 ms	8796 KB	Output is correct
3	Correct	3 ms	8796 KB	Output is correct
4	Correct	2 ms	8796 KB	Output is correct
5	Correct	2 ms	8796 KB	Output is correct
6	Correct	3 ms	8796 KB	Output is correct
7	Correct	3 ms	8796 KB	Output is correct
8	Correct	3 ms	8796 KB	Output is correct
9	Correct	3 ms	8792 KB	Output is correct
10	Correct	3 ms	8792 KB	Output is correct
11	Correct	3 ms	8792 KB	Output is correct
12	Correct	3 ms	8796 KB	Output is correct
13	Correct	3 ms	8796 KB	Output is correct
14	Correct	3 ms	8796 KB	Output is correct
15	Correct	3 ms	8796 KB	Output is correct
16	Correct	3 ms	8792 KB	Output is correct
17	Correct	3 ms	8796 KB	Output is correct
18	Correct	4 ms	8796 KB	Output is correct
19	Correct	3 ms	8796 KB	Output is correct
20	Correct	4 ms	8796 KB	Output is correct
21	Correct	3 ms	8796 KB	Output is correct
22	Correct	4 ms	8796 KB	Output is correct
23	Correct	3 ms	8796 KB	Output is correct
24	Correct	3 ms	8792 KB	Output is correct
25	Correct	3 ms	8796 KB	Output is correct
26	Correct	4 ms	8796 KB	Output is correct
27	Correct	3 ms	8796 KB	Output is correct
28	Correct	3 ms	8796 KB	Output is correct
29	Execution timed out	2055 ms	15564 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8796 KB	Output is correct
2	Correct	3 ms	8796 KB	Output is correct
3	Correct	3 ms	8796 KB	Output is correct
4	Correct	2 ms	8796 KB	Output is correct
5	Correct	2 ms	8796 KB	Output is correct
6	Correct	3 ms	8796 KB	Output is correct
7	Correct	3 ms	8796 KB	Output is correct
8	Correct	3 ms	8796 KB	Output is correct
9	Correct	3 ms	8792 KB	Output is correct
10	Correct	3 ms	8792 KB	Output is correct
11	Correct	3 ms	8792 KB	Output is correct
12	Correct	3 ms	8796 KB	Output is correct
13	Correct	3 ms	8796 KB	Output is correct
14	Correct	3 ms	8796 KB	Output is correct
15	Correct	3 ms	8796 KB	Output is correct
16	Correct	3 ms	8792 KB	Output is correct
17	Correct	3 ms	8796 KB	Output is correct
18	Correct	4 ms	8796 KB	Output is correct
19	Correct	3 ms	8796 KB	Output is correct
20	Correct	4 ms	8796 KB	Output is correct
21	Correct	3 ms	8796 KB	Output is correct
22	Correct	4 ms	8796 KB	Output is correct
23	Correct	3 ms	8796 KB	Output is correct
24	Correct	3 ms	8792 KB	Output is correct
25	Correct	3 ms	8796 KB	Output is correct
26	Correct	4 ms	8796 KB	Output is correct
27	Correct	3 ms	8796 KB	Output is correct
28	Correct	3 ms	8796 KB	Output is correct
29	Correct	43 ms	8796 KB	Output is correct
30	Correct	82 ms	8792 KB	Output is correct
31	Correct	87 ms	8796 KB	Output is correct
32	Correct	74 ms	8796 KB	Output is correct
33	Correct	61 ms	8796 KB	Output is correct
34	Correct	87 ms	8804 KB	Output is correct
35	Correct	94 ms	8904 KB	Output is correct
36	Correct	25 ms	8792 KB	Output is correct
37	Correct	54 ms	8924 KB	Output is correct
38	Correct	42 ms	8796 KB	Output is correct
39	Correct	60 ms	8792 KB	Output is correct
40	Correct	63 ms	8796 KB	Output is correct
41	Correct	65 ms	8924 KB	Output is correct
42	Correct	71 ms	8796 KB	Output is correct
43	Correct	65 ms	8792 KB	Output is correct
44	Correct	79 ms	8796 KB	Output is correct
45	Correct	84 ms	8908 KB	Output is correct
46	Correct	86 ms	8796 KB	Output is correct
47	Correct	60 ms	8796 KB	Output is correct
48	Correct	65 ms	8796 KB	Output is correct
49	Correct	72 ms	8796 KB	Output is correct
50	Correct	78 ms	8796 KB	Output is correct
51	Correct	64 ms	8908 KB	Output is correct
52	Correct	73 ms	8796 KB	Output is correct
53	Correct	84 ms	8912 KB	Output is correct
54	Correct	92 ms	8796 KB	Output is correct
55	Execution timed out	2009 ms	16272 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8796 KB	Output is correct
2	Correct	3 ms	8796 KB	Output is correct
3	Correct	3 ms	8796 KB	Output is correct
4	Correct	2 ms	8796 KB	Output is correct
5	Correct	2 ms	8796 KB	Output is correct
6	Correct	3 ms	8796 KB	Output is correct
7	Correct	3 ms	8796 KB	Output is correct
8	Correct	3 ms	8796 KB	Output is correct
9	Correct	3 ms	8792 KB	Output is correct
10	Correct	3 ms	8792 KB	Output is correct
11	Correct	3 ms	8792 KB	Output is correct
12	Correct	3 ms	8796 KB	Output is correct
13	Correct	3 ms	8796 KB	Output is correct
14	Correct	3 ms	8796 KB	Output is correct
15	Correct	3 ms	8796 KB	Output is correct
16	Correct	3 ms	8792 KB	Output is correct
17	Correct	3 ms	8796 KB	Output is correct
18	Correct	4 ms	8796 KB	Output is correct
19	Correct	3 ms	8796 KB	Output is correct
20	Correct	4 ms	8796 KB	Output is correct
21	Correct	3 ms	8796 KB	Output is correct
22	Correct	4 ms	8796 KB	Output is correct
23	Correct	3 ms	8796 KB	Output is correct
24	Correct	3 ms	8792 KB	Output is correct
25	Correct	3 ms	8796 KB	Output is correct
26	Correct	4 ms	8796 KB	Output is correct
27	Correct	3 ms	8796 KB	Output is correct
28	Correct	3 ms	8796 KB	Output is correct
29	Correct	43 ms	8796 KB	Output is correct
30	Correct	82 ms	8792 KB	Output is correct
31	Correct	87 ms	8796 KB	Output is correct
32	Correct	74 ms	8796 KB	Output is correct
33	Correct	61 ms	8796 KB	Output is correct
34	Correct	87 ms	8804 KB	Output is correct
35	Correct	94 ms	8904 KB	Output is correct
36	Correct	25 ms	8792 KB	Output is correct
37	Correct	54 ms	8924 KB	Output is correct
38	Correct	42 ms	8796 KB	Output is correct
39	Correct	60 ms	8792 KB	Output is correct
40	Correct	63 ms	8796 KB	Output is correct
41	Correct	65 ms	8924 KB	Output is correct
42	Correct	71 ms	8796 KB	Output is correct
43	Correct	65 ms	8792 KB	Output is correct
44	Correct	79 ms	8796 KB	Output is correct
45	Correct	84 ms	8908 KB	Output is correct
46	Correct	86 ms	8796 KB	Output is correct
47	Correct	60 ms	8796 KB	Output is correct
48	Correct	65 ms	8796 KB	Output is correct
49	Correct	72 ms	8796 KB	Output is correct
50	Correct	78 ms	8796 KB	Output is correct
51	Correct	64 ms	8908 KB	Output is correct
52	Correct	73 ms	8796 KB	Output is correct
53	Correct	84 ms	8912 KB	Output is correct
54	Correct	92 ms	8796 KB	Output is correct
55	Execution timed out	2055 ms	15564 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Submission #925680

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 25.0

Subtask #4 0 / 10.0

Subtask #5 0 / 22.0

Subtask #6 0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
8.0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
0 / 10.0

Subtask #5
0 / 22.0

Subtask #6
0 / 29.0