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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#262816#5746. DAG Generationw4p3r#TL 0ms3560kbC++201.6kb2023-11-24 05:35:072023-11-24 05:35:08

Judging History

你现在查看的是最新测评结果

  • [2023-11-24 05:35:08]
  • 评测
  • 测评结果:TL
  • 用时:0ms
  • 内存:3560kb
  • [2023-11-24 05:35:07]
  • 提交

answer

#include<bits/stdc++.h>
#define inf 1e9
#define eps 1e-6
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define REP(i,a,b) for(int i=a;i>=b;i--)
#define db double
#define ve vector<int>
#define pa pair<int,int>
#define fr first
#define sd second
#define pb push_back
#define mp make_pair
#define MEM(a) memset(a,0,sizeof(a))
typedef long long ll;
typedef unsigned long long ull;
using namespace std;
inline ll read()
{
	char ch = getchar();
	ll s = 0, w = 1;
	while (ch < '0' || ch > '9') {if (ch == '-')w = -1; ch = getchar();}
	while (ch >= '0' && ch <= '9') {s = s * 10 + ch - '0'; ch = getchar();}
	return s * w;
}
#define N 100010
int n, inv[N], P[N];
const int mod = int(1e9 + 9);
int ksm(int a, int b)
{
	int ans = 1;
	while (b) {if (b & 1)ans = 1LL * ans * a % mod; b >>= 1; a = 1LL * a * a % mod;}
	return ans;
}
void sol()
{
	cin >> n;
	int ans = 1;
	inv[0] = inv[1] = 1;
	for (int i = 2; i <= n; i ++)inv[i] = 1LL * inv[mod % i] * (mod - mod / i) % mod;
	for (int i = 2; i <= n; i ++)inv[i] = 1LL * inv[i] * inv[i - 1] % mod;
	P[0] = 1;
	for (int i = 1; i <= n; i ++)P[i] = (P[i - 1] + P[i - 1]) % mod;
	for (int i = 1; i <= n; i ++)ans = 1LL * ans * (P[i] + mod - 1) % mod;
	for (int i = 1; i <= n - 1; i ++)ans = 1LL * ans * ksm(1LL * P[i] * P[i] % mod, mod - 2) % mod;
	ans = 1LL * ans * inv[n] % mod;
	cout << (1 + mod - ans) % mod << '\n';
}
signed main()
{
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int T; cin >> T;
	while (T --)sol();
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3560kb

input:

4
1
2
3
100

output:

0
375000004
117187502
778748905

result:

ok 4 number(s): "0 375000004 117187502 778748905"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

5
1
2
3
4
5

output:

0
375000004
117187502
213897708
995024095

result:

ok 5 number(s): "0 375000004 117187502 213897708 995024095"

Test #3:

score: -100
Time Limit Exceeded

input:

100000
64268
66535
9758
42907
84212
83488
27748
86198
80658
11614
93419
2528
96160
79473
83517
43109
37111
46603
93665
54540
84236
62717
24719
57225
8333
15728
40821
31719
13096
75018
76890
46244
75863
59618
67460
10326
84775
11276
83363
72071
9353
94316
9469
3969
78568
53071
96835
50125
2728
46756
...

output:


result: