답안 #47476 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
47476	2018-05-03T14:09:16 Z	Talant	Asceticism (JOI18_asceticism)	C++17	100 / 100	51 ms	1488 KB

asceticism

#include <bits/stdc++.h>

#define mk make_pair
#define sc second
#define fr first
#define pb emplace_back
#define all(s) s.begin(), s.end()
#define sz(s) ( (int)s.size() )
#define int long long

using namespace std;

const int inf = (int)1e9 + 7;
const int N = (int)1e5 + 7;

int n,m;
int f[N];
int ans;

int binpow (int a,int b) {
      int res = 1;
      while (b) {
            if (b & 1)
                  res *= a;
            a *= a;
            b >>= 1;
            a %= inf;
            res %= inf;
      }
      return (res % inf);
}
int cnk(int n,int k) {
      return ((f[n] * binpow(f[n - k],inf - 2)) % inf * binpow(f[k],inf - 2) % inf);
}
int fun(int k) {
      return ((cnk(n + 1,k) * binpow(m - k,n)) % inf);
}
main() {
      f[0] = 1;
      for (int i = 1; i <= N - 5; i ++)
            f[i] = (f[i - 1] * i) % inf;

      cin >> n >> m;

      for (int i = 0; i <= m; i ++) {
            if (i & 1)
                  ans = (ans + inf - fun(i)) % inf;
            else
                  ans = (ans + fun(i)) % inf;
      }
      cout << ans << endl;
}

Compilation message

asceticism.cpp:38:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1144 KB	Output is correct
3	Correct	3 ms	1196 KB	Output is correct
4	Correct	3 ms	1248 KB	Output is correct
5	Correct	3 ms	1248 KB	Output is correct
6	Correct	3 ms	1248 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1144 KB	Output is correct
3	Correct	3 ms	1196 KB	Output is correct
4	Correct	3 ms	1248 KB	Output is correct
5	Correct	3 ms	1248 KB	Output is correct
6	Correct	3 ms	1248 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct
11	Correct	3 ms	1280 KB	Output is correct
12	Correct	3 ms	1288 KB	Output is correct
13	Correct	3 ms	1408 KB	Output is correct
14	Correct	3 ms	1408 KB	Output is correct
15	Correct	3 ms	1408 KB	Output is correct
16	Correct	4 ms	1460 KB	Output is correct
17	Correct	3 ms	1460 KB	Output is correct
18	Correct	3 ms	1460 KB	Output is correct
19	Correct	3 ms	1460 KB	Output is correct
20	Correct	3 ms	1460 KB	Output is correct

Subtask #3
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1144 KB	Output is correct
3	Correct	3 ms	1196 KB	Output is correct
4	Correct	3 ms	1248 KB	Output is correct
5	Correct	3 ms	1248 KB	Output is correct
6	Correct	3 ms	1248 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct
11	Correct	3 ms	1280 KB	Output is correct
12	Correct	3 ms	1288 KB	Output is correct
13	Correct	3 ms	1408 KB	Output is correct
14	Correct	3 ms	1408 KB	Output is correct
15	Correct	3 ms	1408 KB	Output is correct
16	Correct	4 ms	1460 KB	Output is correct
17	Correct	3 ms	1460 KB	Output is correct
18	Correct	3 ms	1460 KB	Output is correct
19	Correct	3 ms	1460 KB	Output is correct
20	Correct	3 ms	1460 KB	Output is correct
21	Correct	3 ms	1460 KB	Output is correct
22	Correct	3 ms	1460 KB	Output is correct
23	Correct	3 ms	1460 KB	Output is correct
24	Correct	4 ms	1460 KB	Output is correct
25	Correct	3 ms	1480 KB	Output is correct
26	Correct	3 ms	1480 KB	Output is correct
27	Correct	4 ms	1480 KB	Output is correct
28	Correct	3 ms	1480 KB	Output is correct
29	Correct	3 ms	1480 KB	Output is correct
30	Correct	4 ms	1484 KB	Output is correct

Subtask #4
51.0 / 51.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1144 KB	Output is correct
2	Correct	3 ms	1144 KB	Output is correct
3	Correct	3 ms	1196 KB	Output is correct
4	Correct	3 ms	1248 KB	Output is correct
5	Correct	3 ms	1248 KB	Output is correct
6	Correct	3 ms	1248 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	3 ms	1280 KB	Output is correct
9	Correct	3 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct
11	Correct	3 ms	1280 KB	Output is correct
12	Correct	3 ms	1288 KB	Output is correct
13	Correct	3 ms	1408 KB	Output is correct
14	Correct	3 ms	1408 KB	Output is correct
15	Correct	3 ms	1408 KB	Output is correct
16	Correct	4 ms	1460 KB	Output is correct
17	Correct	3 ms	1460 KB	Output is correct
18	Correct	3 ms	1460 KB	Output is correct
19	Correct	3 ms	1460 KB	Output is correct
20	Correct	3 ms	1460 KB	Output is correct
21	Correct	3 ms	1460 KB	Output is correct
22	Correct	3 ms	1460 KB	Output is correct
23	Correct	3 ms	1460 KB	Output is correct
24	Correct	4 ms	1460 KB	Output is correct
25	Correct	3 ms	1480 KB	Output is correct
26	Correct	3 ms	1480 KB	Output is correct
27	Correct	4 ms	1480 KB	Output is correct
28	Correct	3 ms	1480 KB	Output is correct
29	Correct	3 ms	1480 KB	Output is correct
30	Correct	4 ms	1484 KB	Output is correct
31	Correct	3 ms	1484 KB	Output is correct
32	Correct	3 ms	1484 KB	Output is correct
33	Correct	5 ms	1484 KB	Output is correct
34	Correct	11 ms	1484 KB	Output is correct
35	Correct	44 ms	1484 KB	Output is correct
36	Correct	47 ms	1488 KB	Output is correct
37	Correct	51 ms	1488 KB	Output is correct
38	Correct	9 ms	1488 KB	Output is correct
39	Correct	18 ms	1488 KB	Output is correct
40	Correct	22 ms	1488 KB	Output is correct

답안 #47476

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