답안 #43980 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
43980	2018-03-29T02:57:21 Z	MatheusLealV	Asceticism (JOI18_asceticism)	C++17	100 / 100	53 ms	2236 KB

asceticism

#include <bits/stdc++.h>
#define N 200030
#define mod 1000000007
using namespace std;
typedef long long ll;

ll n, m, ans, pot[N], fat[N];

ll Pow(ll x, ll p)
{
	if(!p) return 1LL;

	ll ans = Pow(x, p/2);

	ans = (ans*ans)%mod;

	if(p & 1) return (ans*x)%mod;

	return ans;
}

ll inverse(ll x){
	return Pow(x, mod - 2)%mod;
}

ll Choose(ll a, ll b)
{
	ll B = (fat[b]*fat[a - b])%mod;

	return (fat[a]*inverse(B))%mod;
}

int32_t main()
{
	ios::sync_with_stdio(false); cin.tie(0);

	cin>>n>>m;

	pot[0] = fat[0] = 1;

	m--;

	for(int i = 1; i < N; i++) fat[i] = (i*fat[i - 1])%mod;

	for(int k = 0; k <= m + 1; k++)
	{
		ll sign = (k%2 == 0 ? 1 : -1);

		ans = (ans + ((sign*Choose(n + 1, k)*Pow(m + 1 - k, n))%mod) )%mod;
	}

	cout<<(mod + ans)%mod<<'\n';
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	1912 KB	Output is correct
2	Correct	5 ms	1912 KB	Output is correct
3	Correct	4 ms	1948 KB	Output is correct
4	Correct	4 ms	2004 KB	Output is correct
5	Correct	4 ms	2004 KB	Output is correct
6	Correct	4 ms	2004 KB	Output is correct
7	Correct	4 ms	2024 KB	Output is correct
8	Correct	4 ms	2028 KB	Output is correct
9	Correct	4 ms	2028 KB	Output is correct
10	Correct	4 ms	2028 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	1912 KB	Output is correct
2	Correct	5 ms	1912 KB	Output is correct
3	Correct	4 ms	1948 KB	Output is correct
4	Correct	4 ms	2004 KB	Output is correct
5	Correct	4 ms	2004 KB	Output is correct
6	Correct	4 ms	2004 KB	Output is correct
7	Correct	4 ms	2024 KB	Output is correct
8	Correct	4 ms	2028 KB	Output is correct
9	Correct	4 ms	2028 KB	Output is correct
10	Correct	4 ms	2028 KB	Output is correct
11	Correct	4 ms	2028 KB	Output is correct
12	Correct	5 ms	2080 KB	Output is correct
13	Correct	4 ms	2080 KB	Output is correct
14	Correct	4 ms	2132 KB	Output is correct
15	Correct	4 ms	2132 KB	Output is correct
16	Correct	4 ms	2152 KB	Output is correct
17	Correct	4 ms	2152 KB	Output is correct
18	Correct	4 ms	2184 KB	Output is correct
19	Correct	4 ms	2184 KB	Output is correct
20	Correct	4 ms	2184 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	1912 KB	Output is correct
2	Correct	5 ms	1912 KB	Output is correct
3	Correct	4 ms	1948 KB	Output is correct
4	Correct	4 ms	2004 KB	Output is correct
5	Correct	4 ms	2004 KB	Output is correct
6	Correct	4 ms	2004 KB	Output is correct
7	Correct	4 ms	2024 KB	Output is correct
8	Correct	4 ms	2028 KB	Output is correct
9	Correct	4 ms	2028 KB	Output is correct
10	Correct	4 ms	2028 KB	Output is correct
11	Correct	4 ms	2028 KB	Output is correct
12	Correct	5 ms	2080 KB	Output is correct
13	Correct	4 ms	2080 KB	Output is correct
14	Correct	4 ms	2132 KB	Output is correct
15	Correct	4 ms	2132 KB	Output is correct
16	Correct	4 ms	2152 KB	Output is correct
17	Correct	4 ms	2152 KB	Output is correct
18	Correct	4 ms	2184 KB	Output is correct
19	Correct	4 ms	2184 KB	Output is correct
20	Correct	4 ms	2184 KB	Output is correct
21	Correct	4 ms	2184 KB	Output is correct
22	Correct	4 ms	2184 KB	Output is correct
23	Correct	4 ms	2184 KB	Output is correct
24	Correct	4 ms	2184 KB	Output is correct
25	Correct	4 ms	2184 KB	Output is correct
26	Correct	4 ms	2184 KB	Output is correct
27	Correct	4 ms	2184 KB	Output is correct
28	Correct	4 ms	2184 KB	Output is correct
29	Correct	4 ms	2184 KB	Output is correct
30	Correct	4 ms	2184 KB	Output is correct

Subtask #4
51.0 / 51.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	1912 KB	Output is correct
2	Correct	5 ms	1912 KB	Output is correct
3	Correct	4 ms	1948 KB	Output is correct
4	Correct	4 ms	2004 KB	Output is correct
5	Correct	4 ms	2004 KB	Output is correct
6	Correct	4 ms	2004 KB	Output is correct
7	Correct	4 ms	2024 KB	Output is correct
8	Correct	4 ms	2028 KB	Output is correct
9	Correct	4 ms	2028 KB	Output is correct
10	Correct	4 ms	2028 KB	Output is correct
11	Correct	4 ms	2028 KB	Output is correct
12	Correct	5 ms	2080 KB	Output is correct
13	Correct	4 ms	2080 KB	Output is correct
14	Correct	4 ms	2132 KB	Output is correct
15	Correct	4 ms	2132 KB	Output is correct
16	Correct	4 ms	2152 KB	Output is correct
17	Correct	4 ms	2152 KB	Output is correct
18	Correct	4 ms	2184 KB	Output is correct
19	Correct	4 ms	2184 KB	Output is correct
20	Correct	4 ms	2184 KB	Output is correct
21	Correct	4 ms	2184 KB	Output is correct
22	Correct	4 ms	2184 KB	Output is correct
23	Correct	4 ms	2184 KB	Output is correct
24	Correct	4 ms	2184 KB	Output is correct
25	Correct	4 ms	2184 KB	Output is correct
26	Correct	4 ms	2184 KB	Output is correct
27	Correct	4 ms	2184 KB	Output is correct
28	Correct	4 ms	2184 KB	Output is correct
29	Correct	4 ms	2184 KB	Output is correct
30	Correct	4 ms	2184 KB	Output is correct
31	Correct	4 ms	2192 KB	Output is correct
32	Correct	4 ms	2192 KB	Output is correct
33	Correct	6 ms	2192 KB	Output is correct
34	Correct	11 ms	2192 KB	Output is correct
35	Correct	44 ms	2192 KB	Output is correct
36	Correct	50 ms	2228 KB	Output is correct
37	Correct	53 ms	2236 KB	Output is correct
38	Correct	10 ms	2236 KB	Output is correct
39	Correct	19 ms	2236 KB	Output is correct
40	Correct	24 ms	2236 KB	Output is correct

답안 #43980

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 20.0 / 20.0

Subtask #3 25.0 / 25.0

Subtask #4 51.0 / 51.0

Subtask #1
4.0 / 4.0

Subtask #2
20.0 / 20.0

Subtask #3
25.0 / 25.0

Subtask #4
51.0 / 51.0