oj.uz

답안 #698540

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
698540 2023-02-13T17:50:12 Z bin9638 Cryptography (NOI20_crypto) C++17
100 / 100
 137 ms 12764 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define N 300010
#define fs first
#define sc second
#define ii pair<int,int>
#define iii pair<ii,int>
#define ld long double
#define pb push_back
#define int ll

const ll mod=1e9+7;

void selfadd(int&u,int v)
{
    u=(u+v)%mod;
}

int gt[N],ans=1,n,a[N],b[N],bit[N];

void update(int u,int val)
{
    for(;u<=n;u+=u&(-u))
        bit[u]+=val;
}

int get(int u)
{
    int res=0;
    for(;u>0;u-=u&(-u))
        res+=bit[u];
    return res;
}

int32_t main()
{
   // freopen("crypto.inp","r",stdin);
   // freopen("crypto.out","w",stdout);
    cin.tie(NULL);
    cout.tie(NULL);
    ios::sync_with_stdio(0);
    cin>>n;
    gt[0]=1;
    for(int i=1;i<=n;i++)
        gt[i]=gt[i-1]*i%mod;
   // cout<<gt[n]<<endl;
    for(int i=1;i<=n;i++)
        cin>>a[i],b[i]=a[i];
    sort(b+1,b+1+n);
    for(int i=1;i<=n;i++)
    {
        a[i]=lower_bound(b+1,b+1+n,a[i])-b;
      //  cout<<a[i]<<endl;
    }
    for(int i=1;i<=n;i++)
        update(i,1);
    for(int i=1;i<=n;i++)
    {
        selfadd(ans,get(a[i]-1)*gt[n-i]);
        update(a[i],-1);
    }
    cout<<ans;
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 324 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 0 ms 340 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 79 ms 12548 KB Output is correct
3 Correct 64 ms 12516 KB Output is correct
4 Correct 62 ms 12532 KB Output is correct
5 Correct 66 ms 12628 KB Output is correct
6 Correct 75 ms 12512 KB Output is correct
7 Correct 70 ms 12492 KB Output is correct
8 Correct 64 ms 12484 KB Output is correct
9 Correct 66 ms 12492 KB Output is correct
10 Correct 63 ms 12592 KB Output is correct
11 Correct 65 ms 12584 KB Output is correct
12 Correct 69 ms 12588 KB Output is correct
13 Correct 65 ms 12556 KB Output is correct
14 Correct 63 ms 12492 KB Output is correct
15 Correct 64 ms 12600 KB Output is correct
16 Correct 68 ms 12596 KB Output is correct
17 Correct 64 ms 12512 KB Output is correct
18 Correct 71 ms 12568 KB Output is correct
19 Correct 64 ms 12584 KB Output is correct
20 Correct 62 ms 12556 KB Output is correct
21 Correct 63 ms 12492 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 61 ms 11624 KB Output is correct
3 Correct 68 ms 11600 KB Output is correct
4 Correct 57 ms 11584 KB Output is correct
5 Correct 59 ms 11652 KB Output is correct
6 Correct 61 ms 11596 KB Output is correct
7 Correct 65 ms 11592 KB Output is correct
8 Correct 59 ms 11644 KB Output is correct
9 Correct 58 ms 11592 KB Output is correct
10 Correct 57 ms 11608 KB Output is correct
11 Correct 64 ms 11600 KB Output is correct
12 Correct 64 ms 11596 KB Output is correct
13 Correct 57 ms 11640 KB Output is correct
14 Correct 57 ms 11596 KB Output is correct
15 Correct 58 ms 11596 KB Output is correct
16 Correct 57 ms 11640 KB Output is correct
17 Correct 57 ms 11604 KB Output is correct
18 Correct 57 ms 11640 KB Output is correct
19 Correct 61 ms 11604 KB Output is correct
20 Correct 61 ms 11600 KB Output is correct
21 Correct 58 ms 11636 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 2 ms 336 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 468 KB Output is correct
32 Correct 1 ms 468 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 2 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 296 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 1 ms 464 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 1 ms 412 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 2 ms 464 KB Output is correct
55 Correct 1 ms 472 KB Output is correct
56 Correct 2 ms 464 KB Output is correct
57 Correct 2 ms 468 KB Output is correct
58 Correct 2 ms 468 KB Output is correct
59 Correct 1 ms 480 KB Output is correct
60 Correct 2 ms 480 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 1 ms 480 KB Output is correct
63 Correct 1 ms 468 KB Output is correct
64 Correct 2 ms 468 KB Output is correct
65 Correct 1 ms 468 KB Output is correct
66 Correct 1 ms 468 KB Output is correct
67 Correct 1 ms 468 KB Output is correct
68 Correct 1 ms 468 KB Output is correct

Subtask #7
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 61 ms 11624 KB Output is correct
3 Correct 68 ms 11600 KB Output is correct
4 Correct 57 ms 11584 KB Output is correct
5 Correct 59 ms 11652 KB Output is correct
6 Correct 61 ms 11596 KB Output is correct
7 Correct 65 ms 11592 KB Output is correct
8 Correct 59 ms 11644 KB Output is correct
9 Correct 58 ms 11592 KB Output is correct
10 Correct 57 ms 11608 KB Output is correct
11 Correct 64 ms 11600 KB Output is correct
12 Correct 64 ms 11596 KB Output is correct
13 Correct 57 ms 11640 KB Output is correct
14 Correct 57 ms 11596 KB Output is correct
15 Correct 58 ms 11596 KB Output is correct
16 Correct 57 ms 11640 KB Output is correct
17 Correct 57 ms 11604 KB Output is correct
18 Correct 57 ms 11640 KB Output is correct
19 Correct 61 ms 11604 KB Output is correct
20 Correct 61 ms 11600 KB Output is correct
21 Correct 58 ms 11636 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 2 ms 336 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 2 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 468 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 328 KB Output is correct
45 Correct 119 ms 11600 KB Output is correct
46 Correct 116 ms 11608 KB Output is correct
47 Correct 109 ms 11604 KB Output is correct
48 Correct 110 ms 11596 KB Output is correct
49 Correct 112 ms 11600 KB Output is correct
50 Correct 128 ms 11604 KB Output is correct
51 Correct 115 ms 11596 KB Output is correct
52 Correct 111 ms 11600 KB Output is correct
53 Correct 110 ms 11628 KB Output is correct
54 Correct 112 ms 11540 KB Output is correct
55 Correct 111 ms 11640 KB Output is correct
56 Correct 113 ms 11600 KB Output is correct
57 Correct 111 ms 11640 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 129 ms 11512 KB Output is correct
60 Correct 114 ms 11596 KB Output is correct
61 Correct 117 ms 11748 KB Output is correct
62 Correct 110 ms 11636 KB Output is correct
63 Correct 131 ms 11596 KB Output is correct
64 Correct 125 ms 11640 KB Output is correct
65 Correct 110 ms 11636 KB Output is correct

Subtask #8
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 324 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 0 ms 324 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 79 ms 12548 KB Output is correct
27 Correct 64 ms 12516 KB Output is correct
28 Correct 62 ms 12532 KB Output is correct
29 Correct 66 ms 12628 KB Output is correct
30 Correct 75 ms 12512 KB Output is correct
31 Correct 70 ms 12492 KB Output is correct
32 Correct 64 ms 12484 KB Output is correct
33 Correct 66 ms 12492 KB Output is correct
34 Correct 63 ms 12592 KB Output is correct
35 Correct 65 ms 12584 KB Output is correct
36 Correct 69 ms 12588 KB Output is correct
37 Correct 65 ms 12556 KB Output is correct
38 Correct 63 ms 12492 KB Output is correct
39 Correct 64 ms 12600 KB Output is correct
40 Correct 68 ms 12596 KB Output is correct
41 Correct 64 ms 12512 KB Output is correct
42 Correct 71 ms 12568 KB Output is correct
43 Correct 64 ms 12584 KB Output is correct
44 Correct 62 ms 12556 KB Output is correct
45 Correct 63 ms 12492 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 61 ms 11624 KB Output is correct
48 Correct 68 ms 11600 KB Output is correct
49 Correct 57 ms 11584 KB Output is correct
50 Correct 59 ms 11652 KB Output is correct
51 Correct 61 ms 11596 KB Output is correct
52 Correct 65 ms 11592 KB Output is correct
53 Correct 59 ms 11644 KB Output is correct
54 Correct 58 ms 11592 KB Output is correct
55 Correct 57 ms 11608 KB Output is correct
56 Correct 64 ms 11600 KB Output is correct
57 Correct 64 ms 11596 KB Output is correct
58 Correct 57 ms 11640 KB Output is correct
59 Correct 57 ms 11596 KB Output is correct
60 Correct 58 ms 11596 KB Output is correct
61 Correct 57 ms 11640 KB Output is correct
62 Correct 57 ms 11604 KB Output is correct
63 Correct 57 ms 11640 KB Output is correct
64 Correct 61 ms 11604 KB Output is correct
65 Correct 61 ms 11600 KB Output is correct
66 Correct 58 ms 11636 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 2 ms 336 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 2 ms 340 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 1 ms 468 KB Output is correct
74 Correct 1 ms 468 KB Output is correct
75 Correct 1 ms 468 KB Output is correct
76 Correct 1 ms 340 KB Output is correct
77 Correct 1 ms 340 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 2 ms 340 KB Output is correct
80 Correct 1 ms 340 KB Output is correct
81 Correct 1 ms 340 KB Output is correct
82 Correct 1 ms 340 KB Output is correct
83 Correct 1 ms 468 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 1 ms 340 KB Output is correct
86 Correct 1 ms 340 KB Output is correct
87 Correct 1 ms 340 KB Output is correct
88 Correct 1 ms 340 KB Output is correct
89 Correct 0 ms 296 KB Output is correct
90 Correct 1 ms 468 KB Output is correct
91 Correct 1 ms 468 KB Output is correct
92 Correct 1 ms 464 KB Output is correct
93 Correct 1 ms 468 KB Output is correct
94 Correct 1 ms 412 KB Output is correct
95 Correct 1 ms 468 KB Output is correct
96 Correct 2 ms 464 KB Output is correct
97 Correct 1 ms 472 KB Output is correct
98 Correct 2 ms 464 KB Output is correct
99 Correct 2 ms 468 KB Output is correct
100 Correct 2 ms 468 KB Output is correct
101 Correct 1 ms 480 KB Output is correct
102 Correct 2 ms 480 KB Output is correct
103 Correct 1 ms 348 KB Output is correct
104 Correct 1 ms 480 KB Output is correct
105 Correct 1 ms 468 KB Output is correct
106 Correct 2 ms 468 KB Output is correct
107 Correct 1 ms 468 KB Output is correct
108 Correct 1 ms 468 KB Output is correct
109 Correct 1 ms 468 KB Output is correct
110 Correct 1 ms 468 KB Output is correct
111 Correct 1 ms 328 KB Output is correct
112 Correct 119 ms 11600 KB Output is correct
113 Correct 116 ms 11608 KB Output is correct
114 Correct 109 ms 11604 KB Output is correct
115 Correct 110 ms 11596 KB Output is correct
116 Correct 112 ms 11600 KB Output is correct
117 Correct 128 ms 11604 KB Output is correct
118 Correct 115 ms 11596 KB Output is correct
119 Correct 111 ms 11600 KB Output is correct
120 Correct 110 ms 11628 KB Output is correct
121 Correct 112 ms 11540 KB Output is correct
122 Correct 111 ms 11640 KB Output is correct
123 Correct 113 ms 11600 KB Output is correct
124 Correct 111 ms 11640 KB Output is correct
125 Correct 1 ms 340 KB Output is correct
126 Correct 129 ms 11512 KB Output is correct
127 Correct 114 ms 11596 KB Output is correct
128 Correct 117 ms 11748 KB Output is correct
129 Correct 110 ms 11636 KB Output is correct
130 Correct 131 ms 11596 KB Output is correct
131 Correct 125 ms 11640 KB Output is correct
132 Correct 110 ms 11636 KB Output is correct
133 Correct 1 ms 340 KB Output is correct
134 Correct 118 ms 12592 KB Output is correct
135 Correct 122 ms 12544 KB Output is correct
136 Correct 132 ms 12556 KB Output is correct
137 Correct 121 ms 12592 KB Output is correct
138 Correct 120 ms 12600 KB Output is correct
139 Correct 137 ms 12556 KB Output is correct
140 Correct 115 ms 12544 KB Output is correct
141 Correct 120 ms 12764 KB Output is correct
142 Correct 118 ms 12492 KB Output is correct
143 Correct 119 ms 12616 KB Output is correct
144 Correct 116 ms 12560 KB Output is correct
145 Correct 117 ms 12592 KB Output is correct
146 Correct 119 ms 12592 KB Output is correct
147 Correct 1 ms 332 KB Output is correct
148 Correct 117 ms 12588 KB Output is correct
149 Correct 115 ms 12560 KB Output is correct
150 Correct 118 ms 12480 KB Output is correct
151 Correct 117 ms 12560 KB Output is correct
152 Correct 116 ms 12552 KB Output is correct
153 Correct 116 ms 12584 KB Output is correct
154 Correct 120 ms 12600 KB Output is correct