oj.uz

답안 #890092

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
890092 2023-12-20T14:06:30 Z vjudge1 Cryptography (NOI20_crypto) C++14
100 / 100
 79 ms 15216 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long

struct FenwickTree{
   int n;
   vector<int> t;
   void init(int _n){
      n=_n;
      t.assign(n+1, 0);
   }
   void update(int pos, int val){
      for (int i=pos; i<=n; i+=i&(-i)) t[i]+=val;
   }
   int get(int pos){
      int ans=0;
      for (int i=pos; i; i-=i&(-i)) ans+=t[i];
      return ans;
   }
} bit;

const int mod=1e9+7, N=3e5+1;
int n, a[N], fact[N];
pair<int, int> b[N];

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   cin >> n;
   for (int i=1; i<=n; ++i) cin >> a[i], b[i]={a[i], i};
   fact[0]=1;
   for (int i=1; i<=n; ++i) fact[i]=fact[i-1]*i%mod;
   sort(b+1, b+n+1);
   int ans=0;
   for (int i=1; i<=n; ++i) a[b[i].second]=i;
   bit.init(n);
   for (int i=1; i<=n; ++i) bit.update(i, 1);
   for (int i=1; i<=n; ++i){
      bit.update(a[i], -1);
      ans=(ans+fact[n-i]*bit.get(a[i]))%mod;
   }
   cout << (ans+1)%mod;
   return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4552 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4560 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4444 KB Output is correct
2 Correct 40 ms 14832 KB Output is correct
3 Correct 41 ms 14932 KB Output is correct
4 Correct 39 ms 14928 KB Output is correct
5 Correct 44 ms 14928 KB Output is correct
6 Correct 41 ms 14932 KB Output is correct
7 Correct 45 ms 15044 KB Output is correct
8 Correct 40 ms 14928 KB Output is correct
9 Correct 42 ms 15120 KB Output is correct
10 Correct 47 ms 15216 KB Output is correct
11 Correct 41 ms 15032 KB Output is correct
12 Correct 40 ms 15052 KB Output is correct
13 Correct 40 ms 14940 KB Output is correct
14 Correct 47 ms 14928 KB Output is correct
15 Correct 46 ms 14940 KB Output is correct
16 Correct 43 ms 15032 KB Output is correct
17 Correct 40 ms 15212 KB Output is correct
18 Correct 41 ms 14840 KB Output is correct
19 Correct 39 ms 14928 KB Output is correct
20 Correct 44 ms 15076 KB Output is correct
21 Correct 39 ms 14832 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 35 ms 13916 KB Output is correct
3 Correct 36 ms 13904 KB Output is correct
4 Correct 39 ms 14056 KB Output is correct
5 Correct 36 ms 13904 KB Output is correct
6 Correct 35 ms 13916 KB Output is correct
7 Correct 36 ms 13908 KB Output is correct
8 Correct 36 ms 13916 KB Output is correct
9 Correct 37 ms 14048 KB Output is correct
10 Correct 35 ms 13908 KB Output is correct
11 Correct 34 ms 13952 KB Output is correct
12 Correct 34 ms 13916 KB Output is correct
13 Correct 35 ms 13904 KB Output is correct
14 Correct 34 ms 13904 KB Output is correct
15 Correct 35 ms 13916 KB Output is correct
16 Correct 35 ms 14052 KB Output is correct
17 Correct 36 ms 13908 KB Output is correct
18 Correct 35 ms 13908 KB Output is correct
19 Correct 35 ms 14060 KB Output is correct
20 Correct 44 ms 13972 KB Output is correct
21 Correct 36 ms 13908 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4628 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4696 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4576 KB Output is correct
7 Correct 1 ms 4572 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4696 KB Output is correct
16 Correct 1 ms 4572 KB Output is correct
17 Correct 2 ms 4440 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4440 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4552 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4560 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4440 KB Output is correct
26 Correct 1 ms 4628 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4696 KB Output is correct
29 Correct 1 ms 4440 KB Output is correct
30 Correct 1 ms 4576 KB Output is correct
31 Correct 1 ms 4572 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4444 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 1 ms 4444 KB Output is correct
38 Correct 1 ms 4444 KB Output is correct
39 Correct 1 ms 4696 KB Output is correct
40 Correct 1 ms 4572 KB Output is correct
41 Correct 2 ms 4440 KB Output is correct
42 Correct 1 ms 4440 KB Output is correct
43 Correct 1 ms 4444 KB Output is correct
44 Correct 1 ms 4444 KB Output is correct
45 Correct 1 ms 4440 KB Output is correct
46 Correct 1 ms 4440 KB Output is correct
47 Correct 1 ms 4440 KB Output is correct
48 Correct 1 ms 4440 KB Output is correct
49 Correct 1 ms 4444 KB Output is correct
50 Correct 1 ms 4444 KB Output is correct
51 Correct 1 ms 4444 KB Output is correct
52 Correct 2 ms 4444 KB Output is correct
53 Correct 1 ms 4568 KB Output is correct
54 Correct 1 ms 4444 KB Output is correct
55 Correct 1 ms 4444 KB Output is correct
56 Correct 1 ms 4444 KB Output is correct
57 Correct 1 ms 4448 KB Output is correct
58 Correct 1 ms 4440 KB Output is correct
59 Correct 1 ms 4444 KB Output is correct
60 Correct 1 ms 4580 KB Output is correct
61 Correct 1 ms 4444 KB Output is correct
62 Correct 2 ms 4444 KB Output is correct
63 Correct 2 ms 4620 KB Output is correct
64 Correct 1 ms 4572 KB Output is correct
65 Correct 1 ms 4444 KB Output is correct
66 Correct 1 ms 4444 KB Output is correct
67 Correct 1 ms 4444 KB Output is correct
68 Correct 2 ms 4440 KB Output is correct

Subtask #7
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 35 ms 13916 KB Output is correct
3 Correct 36 ms 13904 KB Output is correct
4 Correct 39 ms 14056 KB Output is correct
5 Correct 36 ms 13904 KB Output is correct
6 Correct 35 ms 13916 KB Output is correct
7 Correct 36 ms 13908 KB Output is correct
8 Correct 36 ms 13916 KB Output is correct
9 Correct 37 ms 14048 KB Output is correct
10 Correct 35 ms 13908 KB Output is correct
11 Correct 34 ms 13952 KB Output is correct
12 Correct 34 ms 13916 KB Output is correct
13 Correct 35 ms 13904 KB Output is correct
14 Correct 34 ms 13904 KB Output is correct
15 Correct 35 ms 13916 KB Output is correct
16 Correct 35 ms 14052 KB Output is correct
17 Correct 36 ms 13908 KB Output is correct
18 Correct 35 ms 13908 KB Output is correct
19 Correct 35 ms 14060 KB Output is correct
20 Correct 44 ms 13972 KB Output is correct
21 Correct 36 ms 13908 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct
23 Correct 1 ms 4628 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4696 KB Output is correct
26 Correct 1 ms 4440 KB Output is correct
27 Correct 1 ms 4576 KB Output is correct
28 Correct 1 ms 4572 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4444 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4696 KB Output is correct
37 Correct 1 ms 4572 KB Output is correct
38 Correct 2 ms 4440 KB Output is correct
39 Correct 1 ms 4440 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 1 ms 4444 KB Output is correct
42 Correct 1 ms 4440 KB Output is correct
43 Correct 1 ms 4440 KB Output is correct
44 Correct 1 ms 4444 KB Output is correct
45 Correct 63 ms 14092 KB Output is correct
46 Correct 63 ms 14076 KB Output is correct
47 Correct 67 ms 14160 KB Output is correct
48 Correct 63 ms 13940 KB Output is correct
49 Correct 63 ms 13908 KB Output is correct
50 Correct 65 ms 14088 KB Output is correct
51 Correct 63 ms 13908 KB Output is correct
52 Correct 63 ms 13908 KB Output is correct
53 Correct 65 ms 14160 KB Output is correct
54 Correct 62 ms 13904 KB Output is correct
55 Correct 63 ms 13904 KB Output is correct
56 Correct 62 ms 13908 KB Output is correct
57 Correct 67 ms 13908 KB Output is correct
58 Correct 1 ms 4444 KB Output is correct
59 Correct 69 ms 14296 KB Output is correct
60 Correct 62 ms 14072 KB Output is correct
61 Correct 64 ms 14052 KB Output is correct
62 Correct 62 ms 13908 KB Output is correct
63 Correct 63 ms 14076 KB Output is correct
64 Correct 66 ms 13908 KB Output is correct
65 Correct 62 ms 14076 KB Output is correct

Subtask #8
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4552 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4560 KB Output is correct
22 Correct 1 ms 4440 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 2 ms 4444 KB Output is correct
26 Correct 40 ms 14832 KB Output is correct
27 Correct 41 ms 14932 KB Output is correct
28 Correct 39 ms 14928 KB Output is correct
29 Correct 44 ms 14928 KB Output is correct
30 Correct 41 ms 14932 KB Output is correct
31 Correct 45 ms 15044 KB Output is correct
32 Correct 40 ms 14928 KB Output is correct
33 Correct 42 ms 15120 KB Output is correct
34 Correct 47 ms 15216 KB Output is correct
35 Correct 41 ms 15032 KB Output is correct
36 Correct 40 ms 15052 KB Output is correct
37 Correct 40 ms 14940 KB Output is correct
38 Correct 47 ms 14928 KB Output is correct
39 Correct 46 ms 14940 KB Output is correct
40 Correct 43 ms 15032 KB Output is correct
41 Correct 40 ms 15212 KB Output is correct
42 Correct 41 ms 14840 KB Output is correct
43 Correct 39 ms 14928 KB Output is correct
44 Correct 44 ms 15076 KB Output is correct
45 Correct 39 ms 14832 KB Output is correct
46 Correct 1 ms 4440 KB Output is correct
47 Correct 35 ms 13916 KB Output is correct
48 Correct 36 ms 13904 KB Output is correct
49 Correct 39 ms 14056 KB Output is correct
50 Correct 36 ms 13904 KB Output is correct
51 Correct 35 ms 13916 KB Output is correct
52 Correct 36 ms 13908 KB Output is correct
53 Correct 36 ms 13916 KB Output is correct
54 Correct 37 ms 14048 KB Output is correct
55 Correct 35 ms 13908 KB Output is correct
56 Correct 34 ms 13952 KB Output is correct
57 Correct 34 ms 13916 KB Output is correct
58 Correct 35 ms 13904 KB Output is correct
59 Correct 34 ms 13904 KB Output is correct
60 Correct 35 ms 13916 KB Output is correct
61 Correct 35 ms 14052 KB Output is correct
62 Correct 36 ms 13908 KB Output is correct
63 Correct 35 ms 13908 KB Output is correct
64 Correct 35 ms 14060 KB Output is correct
65 Correct 44 ms 13972 KB Output is correct
66 Correct 36 ms 13908 KB Output is correct
67 Correct 1 ms 4440 KB Output is correct
68 Correct 1 ms 4628 KB Output is correct
69 Correct 1 ms 4444 KB Output is correct
70 Correct 1 ms 4696 KB Output is correct
71 Correct 1 ms 4440 KB Output is correct
72 Correct 1 ms 4576 KB Output is correct
73 Correct 1 ms 4572 KB Output is correct
74 Correct 1 ms 4444 KB Output is correct
75 Correct 1 ms 4444 KB Output is correct
76 Correct 1 ms 4444 KB Output is correct
77 Correct 1 ms 4444 KB Output is correct
78 Correct 1 ms 4444 KB Output is correct
79 Correct 1 ms 4444 KB Output is correct
80 Correct 1 ms 4444 KB Output is correct
81 Correct 1 ms 4696 KB Output is correct
82 Correct 1 ms 4572 KB Output is correct
83 Correct 2 ms 4440 KB Output is correct
84 Correct 1 ms 4440 KB Output is correct
85 Correct 1 ms 4444 KB Output is correct
86 Correct 1 ms 4444 KB Output is correct
87 Correct 1 ms 4440 KB Output is correct
88 Correct 1 ms 4440 KB Output is correct
89 Correct 1 ms 4440 KB Output is correct
90 Correct 1 ms 4440 KB Output is correct
91 Correct 1 ms 4444 KB Output is correct
92 Correct 1 ms 4444 KB Output is correct
93 Correct 1 ms 4444 KB Output is correct
94 Correct 2 ms 4444 KB Output is correct
95 Correct 1 ms 4568 KB Output is correct
96 Correct 1 ms 4444 KB Output is correct
97 Correct 1 ms 4444 KB Output is correct
98 Correct 1 ms 4444 KB Output is correct
99 Correct 1 ms 4448 KB Output is correct
100 Correct 1 ms 4440 KB Output is correct
101 Correct 1 ms 4444 KB Output is correct
102 Correct 1 ms 4580 KB Output is correct
103 Correct 1 ms 4444 KB Output is correct
104 Correct 2 ms 4444 KB Output is correct
105 Correct 2 ms 4620 KB Output is correct
106 Correct 1 ms 4572 KB Output is correct
107 Correct 1 ms 4444 KB Output is correct
108 Correct 1 ms 4444 KB Output is correct
109 Correct 1 ms 4444 KB Output is correct
110 Correct 2 ms 4440 KB Output is correct
111 Correct 1 ms 4444 KB Output is correct
112 Correct 63 ms 14092 KB Output is correct
113 Correct 63 ms 14076 KB Output is correct
114 Correct 67 ms 14160 KB Output is correct
115 Correct 63 ms 13940 KB Output is correct
116 Correct 63 ms 13908 KB Output is correct
117 Correct 65 ms 14088 KB Output is correct
118 Correct 63 ms 13908 KB Output is correct
119 Correct 63 ms 13908 KB Output is correct
120 Correct 65 ms 14160 KB Output is correct
121 Correct 62 ms 13904 KB Output is correct
122 Correct 63 ms 13904 KB Output is correct
123 Correct 62 ms 13908 KB Output is correct
124 Correct 67 ms 13908 KB Output is correct
125 Correct 1 ms 4444 KB Output is correct
126 Correct 69 ms 14296 KB Output is correct
127 Correct 62 ms 14072 KB Output is correct
128 Correct 64 ms 14052 KB Output is correct
129 Correct 62 ms 13908 KB Output is correct
130 Correct 63 ms 14076 KB Output is correct
131 Correct 66 ms 13908 KB Output is correct
132 Correct 62 ms 14076 KB Output is correct
133 Correct 1 ms 4696 KB Output is correct
134 Correct 74 ms 15032 KB Output is correct
135 Correct 67 ms 15028 KB Output is correct
136 Correct 73 ms 15040 KB Output is correct
137 Correct 71 ms 15076 KB Output is correct
138 Correct 73 ms 14932 KB Output is correct
139 Correct 67 ms 15032 KB Output is correct
140 Correct 79 ms 15068 KB Output is correct
141 Correct 67 ms 15036 KB Output is correct
142 Correct 71 ms 14928 KB Output is correct
143 Correct 70 ms 14836 KB Output is correct
144 Correct 71 ms 14948 KB Output is correct
145 Correct 71 ms 14932 KB Output is correct
146 Correct 66 ms 15032 KB Output is correct
147 Correct 1 ms 4440 KB Output is correct
148 Correct 67 ms 14928 KB Output is correct
149 Correct 64 ms 14932 KB Output is correct
150 Correct 65 ms 14932 KB Output is correct
151 Correct 64 ms 15036 KB Output is correct
152 Correct 68 ms 15188 KB Output is correct
153 Correct 68 ms 15036 KB Output is correct
154 Correct 69 ms 14924 KB Output is correct