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답안 #255321

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
255321 2020-07-31T17:29:48 Z model_code Cryptography (NOI20_crypto) C++17
100 / 100
 177 ms 6328 KB 
#include <iostream>
#include <algorithm>
using namespace std;

const long long MOD = 1e9 + 7;
long long F[300010] = {1};
long long ANS = 1;
int N;
int P[300010], P2[300010];

int FT[300010];
void update(int X, int V) {
    for (; X <= N; X += X & -X)
        FT[X] += V;
}
int query(int X) {
    int RET = 0;
    for (; X; X -= X & -X)
        RET += FT[X];
    return RET;
}
void solve() {
    for (int a = 1; a <= N; ++a) {
        FT[a] += 1;
        int b = a + (a & -a);
        if (b <= N) FT[b] += FT[a];
    }
    for (int a = 1; a <= N; ++a) {
        (ANS += (query(P[a]) - 1) * F[N - a]) %= MOD;
        update(P[a], -1);
    }
    cout << ANS << '\n';
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> N;
    for (int a = 1; a <= N; ++a) {
        cin >> P[a];
        P2[a] = P[a];
    }
    sort(P2 + 1, P2 + N + 1);
    for (int a = 1; a <= N; ++a)
        P[a] = lower_bound(P2 + 1, P2 + N + 1, P[a]) - P2;
    for (int a = 1; a < N; ++a)
        (F[a] = F[a - 1] * a) %= MOD;
    solve();
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 304 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 88 ms 6256 KB Output is correct
3 Correct 87 ms 6200 KB Output is correct
4 Correct 78 ms 6136 KB Output is correct
5 Correct 95 ms 6136 KB Output is correct
6 Correct 77 ms 6228 KB Output is correct
7 Correct 75 ms 6136 KB Output is correct
8 Correct 78 ms 6136 KB Output is correct
9 Correct 76 ms 6136 KB Output is correct
10 Correct 80 ms 6136 KB Output is correct
11 Correct 74 ms 6136 KB Output is correct
12 Correct 76 ms 6136 KB Output is correct
13 Correct 75 ms 6136 KB Output is correct
14 Correct 86 ms 6140 KB Output is correct
15 Correct 81 ms 6264 KB Output is correct
16 Correct 89 ms 6136 KB Output is correct
17 Correct 107 ms 6208 KB Output is correct
18 Correct 85 ms 6136 KB Output is correct
19 Correct 71 ms 6136 KB Output is correct
20 Correct 79 ms 6140 KB Output is correct
21 Correct 92 ms 6204 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 82 ms 6200 KB Output is correct
3 Correct 71 ms 6204 KB Output is correct
4 Correct 81 ms 6188 KB Output is correct
5 Correct 75 ms 6136 KB Output is correct
6 Correct 75 ms 6200 KB Output is correct
7 Correct 74 ms 6208 KB Output is correct
8 Correct 74 ms 6136 KB Output is correct
9 Correct 80 ms 6208 KB Output is correct
10 Correct 77 ms 6136 KB Output is correct
11 Correct 76 ms 6176 KB Output is correct
12 Correct 74 ms 6256 KB Output is correct
13 Correct 83 ms 6256 KB Output is correct
14 Correct 74 ms 6132 KB Output is correct
15 Correct 72 ms 6212 KB Output is correct
16 Correct 90 ms 6312 KB Output is correct
17 Correct 68 ms 6264 KB Output is correct
18 Correct 67 ms 6136 KB Output is correct
19 Correct 78 ms 6136 KB Output is correct
20 Correct 72 ms 6200 KB Output is correct
21 Correct 73 ms 6136 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 456 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 2 ms 384 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 304 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 456 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 2 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 0 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 2 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 2 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 2 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 2 ms 384 KB Output is correct
52 Correct 0 ms 384 KB Output is correct
53 Correct 2 ms 424 KB Output is correct
54 Correct 2 ms 384 KB Output is correct
55 Correct 2 ms 384 KB Output is correct
56 Correct 1 ms 384 KB Output is correct
57 Correct 1 ms 384 KB Output is correct
58 Correct 2 ms 384 KB Output is correct
59 Correct 2 ms 384 KB Output is correct
60 Correct 2 ms 384 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 2 ms 384 KB Output is correct
63 Correct 2 ms 384 KB Output is correct
64 Correct 2 ms 384 KB Output is correct
65 Correct 3 ms 384 KB Output is correct
66 Correct 2 ms 384 KB Output is correct
67 Correct 2 ms 360 KB Output is correct
68 Correct 4 ms 512 KB Output is correct

Subtask #7
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 82 ms 6200 KB Output is correct
3 Correct 71 ms 6204 KB Output is correct
4 Correct 81 ms 6188 KB Output is correct
5 Correct 75 ms 6136 KB Output is correct
6 Correct 75 ms 6200 KB Output is correct
7 Correct 74 ms 6208 KB Output is correct
8 Correct 74 ms 6136 KB Output is correct
9 Correct 80 ms 6208 KB Output is correct
10 Correct 77 ms 6136 KB Output is correct
11 Correct 76 ms 6176 KB Output is correct
12 Correct 74 ms 6256 KB Output is correct
13 Correct 83 ms 6256 KB Output is correct
14 Correct 74 ms 6132 KB Output is correct
15 Correct 72 ms 6212 KB Output is correct
16 Correct 90 ms 6312 KB Output is correct
17 Correct 68 ms 6264 KB Output is correct
18 Correct 67 ms 6136 KB Output is correct
19 Correct 78 ms 6136 KB Output is correct
20 Correct 72 ms 6200 KB Output is correct
21 Correct 73 ms 6136 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 456 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 2 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 2 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 2 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 2 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 132 ms 6136 KB Output is correct
46 Correct 130 ms 6136 KB Output is correct
47 Correct 141 ms 6208 KB Output is correct
48 Correct 132 ms 6140 KB Output is correct
49 Correct 150 ms 6192 KB Output is correct
50 Correct 142 ms 6204 KB Output is correct
51 Correct 126 ms 6136 KB Output is correct
52 Correct 133 ms 6264 KB Output is correct
53 Correct 149 ms 6200 KB Output is correct
54 Correct 157 ms 6200 KB Output is correct
55 Correct 152 ms 6208 KB Output is correct
56 Correct 128 ms 6204 KB Output is correct
57 Correct 128 ms 6204 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 177 ms 6136 KB Output is correct
60 Correct 133 ms 6136 KB Output is correct
61 Correct 128 ms 6208 KB Output is correct
62 Correct 130 ms 6136 KB Output is correct
63 Correct 132 ms 6204 KB Output is correct
64 Correct 135 ms 6136 KB Output is correct
65 Correct 142 ms 6256 KB Output is correct

Subtask #8
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 304 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 0 ms 384 KB Output is correct
26 Correct 88 ms 6256 KB Output is correct
27 Correct 87 ms 6200 KB Output is correct
28 Correct 78 ms 6136 KB Output is correct
29 Correct 95 ms 6136 KB Output is correct
30 Correct 77 ms 6228 KB Output is correct
31 Correct 75 ms 6136 KB Output is correct
32 Correct 78 ms 6136 KB Output is correct
33 Correct 76 ms 6136 KB Output is correct
34 Correct 80 ms 6136 KB Output is correct
35 Correct 74 ms 6136 KB Output is correct
36 Correct 76 ms 6136 KB Output is correct
37 Correct 75 ms 6136 KB Output is correct
38 Correct 86 ms 6140 KB Output is correct
39 Correct 81 ms 6264 KB Output is correct
40 Correct 89 ms 6136 KB Output is correct
41 Correct 107 ms 6208 KB Output is correct
42 Correct 85 ms 6136 KB Output is correct
43 Correct 71 ms 6136 KB Output is correct
44 Correct 79 ms 6140 KB Output is correct
45 Correct 92 ms 6204 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 82 ms 6200 KB Output is correct
48 Correct 71 ms 6204 KB Output is correct
49 Correct 81 ms 6188 KB Output is correct
50 Correct 75 ms 6136 KB Output is correct
51 Correct 75 ms 6200 KB Output is correct
52 Correct 74 ms 6208 KB Output is correct
53 Correct 74 ms 6136 KB Output is correct
54 Correct 80 ms 6208 KB Output is correct
55 Correct 77 ms 6136 KB Output is correct
56 Correct 76 ms 6176 KB Output is correct
57 Correct 74 ms 6256 KB Output is correct
58 Correct 83 ms 6256 KB Output is correct
59 Correct 74 ms 6132 KB Output is correct
60 Correct 72 ms 6212 KB Output is correct
61 Correct 90 ms 6312 KB Output is correct
62 Correct 68 ms 6264 KB Output is correct
63 Correct 67 ms 6136 KB Output is correct
64 Correct 78 ms 6136 KB Output is correct
65 Correct 72 ms 6200 KB Output is correct
66 Correct 73 ms 6136 KB Output is correct
67 Correct 0 ms 384 KB Output is correct
68 Correct 1 ms 384 KB Output is correct
69 Correct 1 ms 456 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 1 ms 384 KB Output is correct
72 Correct 1 ms 384 KB Output is correct
73 Correct 1 ms 384 KB Output is correct
74 Correct 2 ms 384 KB Output is correct
75 Correct 2 ms 384 KB Output is correct
76 Correct 2 ms 384 KB Output is correct
77 Correct 2 ms 384 KB Output is correct
78 Correct 1 ms 384 KB Output is correct
79 Correct 2 ms 384 KB Output is correct
80 Correct 1 ms 384 KB Output is correct
81 Correct 0 ms 384 KB Output is correct
82 Correct 1 ms 384 KB Output is correct
83 Correct 1 ms 384 KB Output is correct
84 Correct 2 ms 384 KB Output is correct
85 Correct 1 ms 384 KB Output is correct
86 Correct 2 ms 384 KB Output is correct
87 Correct 1 ms 384 KB Output is correct
88 Correct 2 ms 384 KB Output is correct
89 Correct 1 ms 384 KB Output is correct
90 Correct 2 ms 384 KB Output is correct
91 Correct 1 ms 384 KB Output is correct
92 Correct 2 ms 384 KB Output is correct
93 Correct 2 ms 384 KB Output is correct
94 Correct 0 ms 384 KB Output is correct
95 Correct 2 ms 424 KB Output is correct
96 Correct 2 ms 384 KB Output is correct
97 Correct 2 ms 384 KB Output is correct
98 Correct 1 ms 384 KB Output is correct
99 Correct 1 ms 384 KB Output is correct
100 Correct 2 ms 384 KB Output is correct
101 Correct 2 ms 384 KB Output is correct
102 Correct 2 ms 384 KB Output is correct
103 Correct 1 ms 384 KB Output is correct
104 Correct 2 ms 384 KB Output is correct
105 Correct 2 ms 384 KB Output is correct
106 Correct 2 ms 384 KB Output is correct
107 Correct 3 ms 384 KB Output is correct
108 Correct 2 ms 384 KB Output is correct
109 Correct 2 ms 360 KB Output is correct
110 Correct 4 ms 512 KB Output is correct
111 Correct 1 ms 384 KB Output is correct
112 Correct 132 ms 6136 KB Output is correct
113 Correct 130 ms 6136 KB Output is correct
114 Correct 141 ms 6208 KB Output is correct
115 Correct 132 ms 6140 KB Output is correct
116 Correct 150 ms 6192 KB Output is correct
117 Correct 142 ms 6204 KB Output is correct
118 Correct 126 ms 6136 KB Output is correct
119 Correct 133 ms 6264 KB Output is correct
120 Correct 149 ms 6200 KB Output is correct
121 Correct 157 ms 6200 KB Output is correct
122 Correct 152 ms 6208 KB Output is correct
123 Correct 128 ms 6204 KB Output is correct
124 Correct 128 ms 6204 KB Output is correct
125 Correct 1 ms 384 KB Output is correct
126 Correct 177 ms 6136 KB Output is correct
127 Correct 133 ms 6136 KB Output is correct
128 Correct 128 ms 6208 KB Output is correct
129 Correct 130 ms 6136 KB Output is correct
130 Correct 132 ms 6204 KB Output is correct
131 Correct 135 ms 6136 KB Output is correct
132 Correct 142 ms 6256 KB Output is correct
133 Correct 0 ms 384 KB Output is correct
134 Correct 153 ms 6172 KB Output is correct
135 Correct 147 ms 6264 KB Output is correct
136 Correct 133 ms 6200 KB Output is correct
137 Correct 140 ms 6328 KB Output is correct
138 Correct 134 ms 6136 KB Output is correct
139 Correct 139 ms 6136 KB Output is correct
140 Correct 142 ms 6240 KB Output is correct
141 Correct 151 ms 6136 KB Output is correct
142 Correct 168 ms 6204 KB Output is correct
143 Correct 135 ms 6204 KB Output is correct
144 Correct 134 ms 6200 KB Output is correct
145 Correct 170 ms 6136 KB Output is correct
146 Correct 135 ms 6200 KB Output is correct
147 Correct 0 ms 384 KB Output is correct
148 Correct 143 ms 6136 KB Output is correct
149 Correct 140 ms 6200 KB Output is correct
150 Correct 134 ms 6208 KB Output is correct
151 Correct 150 ms 6200 KB Output is correct
152 Correct 154 ms 6200 KB Output is correct
153 Correct 158 ms 6224 KB Output is correct
154 Correct 137 ms 6140 KB Output is correct