oj.uz

답안 #452079

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
452079 2021-08-03T18:16:26 Z Jomnoi Cryptography (NOI20_crypto) C++17
100 / 100
 116 ms 9160 KB 
#include <bits/stdc++.h>
#define DEBUG 0
#define ll long long
using namespace std;

const int N = 3e5+10;
const int MOD = 1e9+7;
int p[N], a[N];
ll fac[N];
int fenwick[N];

void update(int idx) {
    for(; idx < N; idx += (idx&-idx)) {
        fenwick[idx]++;
    }
}

int query(int idx) {
    int res = 0;
    for(; idx > 0; idx -= (idx&-idx)) {
        res += fenwick[idx];
    }
    return res;
}

bool cmp(int x, int y) {
    return p[x] < p[y];
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    fac[0] = 1;
    for(int i = 1; i <= n; i++) {
        fac[i] = (fac[i-1]*i)%MOD;
    }
    for(int i = 1; i <= n; i++) {
        cin >> p[i];
        a[i] = i;
    }
    sort(a+1, a+n+1, cmp);
    for(int i = 1; i <= n; i++) {
        p[a[i]] = i;
    }
    ll ans = 1;
    for(int i = 1; i <= n; i++) {
        ans = (ans+fac[n-i]*(p[i]-query(p[i])-1))%MOD;
        update(p[i]);
    }
    cout << ans;
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 65 ms 9052 KB Output is correct
3 Correct 65 ms 9032 KB Output is correct
4 Correct 65 ms 9160 KB Output is correct
5 Correct 67 ms 9136 KB Output is correct
6 Correct 64 ms 9028 KB Output is correct
7 Correct 71 ms 9060 KB Output is correct
8 Correct 72 ms 8988 KB Output is correct
9 Correct 70 ms 9028 KB Output is correct
10 Correct 72 ms 9056 KB Output is correct
11 Correct 71 ms 8988 KB Output is correct
12 Correct 64 ms 9056 KB Output is correct
13 Correct 65 ms 8976 KB Output is correct
14 Correct 64 ms 9028 KB Output is correct
15 Correct 70 ms 9000 KB Output is correct
16 Correct 72 ms 9024 KB Output is correct
17 Correct 72 ms 9032 KB Output is correct
18 Correct 77 ms 9052 KB Output is correct
19 Correct 65 ms 9028 KB Output is correct
20 Correct 65 ms 9056 KB Output is correct
21 Correct 64 ms 9028 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 62 ms 8144 KB Output is correct
3 Correct 61 ms 8104 KB Output is correct
4 Correct 63 ms 8000 KB Output is correct
5 Correct 62 ms 8084 KB Output is correct
6 Correct 61 ms 7996 KB Output is correct
7 Correct 60 ms 8108 KB Output is correct
8 Correct 65 ms 8116 KB Output is correct
9 Correct 76 ms 8048 KB Output is correct
10 Correct 66 ms 8036 KB Output is correct
11 Correct 61 ms 8096 KB Output is correct
12 Correct 60 ms 8156 KB Output is correct
13 Correct 64 ms 8052 KB Output is correct
14 Correct 63 ms 8096 KB Output is correct
15 Correct 62 ms 8012 KB Output is correct
16 Correct 62 ms 8012 KB Output is correct
17 Correct 73 ms 8012 KB Output is correct
18 Correct 61 ms 8004 KB Output is correct
19 Correct 61 ms 8076 KB Output is correct
20 Correct 62 ms 8100 KB Output is correct
21 Correct 63 ms 8008 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 328 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 328 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 1 ms 328 KB Output is correct
47 Correct 0 ms 332 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 460 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 456 KB Output is correct
52 Correct 1 ms 460 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 460 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 460 KB Output is correct
58 Correct 1 ms 460 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 0 ms 332 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 1 ms 460 KB Output is correct
64 Correct 1 ms 460 KB Output is correct
65 Correct 1 ms 460 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 2 ms 460 KB Output is correct
68 Correct 1 ms 460 KB Output is correct

Subtask #7
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 62 ms 8144 KB Output is correct
3 Correct 61 ms 8104 KB Output is correct
4 Correct 63 ms 8000 KB Output is correct
5 Correct 62 ms 8084 KB Output is correct
6 Correct 61 ms 7996 KB Output is correct
7 Correct 60 ms 8108 KB Output is correct
8 Correct 65 ms 8116 KB Output is correct
9 Correct 76 ms 8048 KB Output is correct
10 Correct 66 ms 8036 KB Output is correct
11 Correct 61 ms 8096 KB Output is correct
12 Correct 60 ms 8156 KB Output is correct
13 Correct 64 ms 8052 KB Output is correct
14 Correct 63 ms 8096 KB Output is correct
15 Correct 62 ms 8012 KB Output is correct
16 Correct 62 ms 8012 KB Output is correct
17 Correct 73 ms 8012 KB Output is correct
18 Correct 61 ms 8004 KB Output is correct
19 Correct 61 ms 8076 KB Output is correct
20 Correct 62 ms 8100 KB Output is correct
21 Correct 63 ms 8008 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 328 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 328 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 96 ms 8100 KB Output is correct
46 Correct 102 ms 8104 KB Output is correct
47 Correct 99 ms 8164 KB Output is correct
48 Correct 99 ms 8096 KB Output is correct
49 Correct 97 ms 8080 KB Output is correct
50 Correct 98 ms 8004 KB Output is correct
51 Correct 101 ms 8068 KB Output is correct
52 Correct 98 ms 8112 KB Output is correct
53 Correct 116 ms 8004 KB Output is correct
54 Correct 98 ms 8112 KB Output is correct
55 Correct 104 ms 8112 KB Output is correct
56 Correct 101 ms 8148 KB Output is correct
57 Correct 97 ms 8088 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 105 ms 8000 KB Output is correct
60 Correct 101 ms 8108 KB Output is correct
61 Correct 97 ms 8096 KB Output is correct
62 Correct 99 ms 8100 KB Output is correct
63 Correct 98 ms 8088 KB Output is correct
64 Correct 99 ms 8096 KB Output is correct
65 Correct 99 ms 8128 KB Output is correct

Subtask #8
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 320 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 65 ms 9052 KB Output is correct
27 Correct 65 ms 9032 KB Output is correct
28 Correct 65 ms 9160 KB Output is correct
29 Correct 67 ms 9136 KB Output is correct
30 Correct 64 ms 9028 KB Output is correct
31 Correct 71 ms 9060 KB Output is correct
32 Correct 72 ms 8988 KB Output is correct
33 Correct 70 ms 9028 KB Output is correct
34 Correct 72 ms 9056 KB Output is correct
35 Correct 71 ms 8988 KB Output is correct
36 Correct 64 ms 9056 KB Output is correct
37 Correct 65 ms 8976 KB Output is correct
38 Correct 64 ms 9028 KB Output is correct
39 Correct 70 ms 9000 KB Output is correct
40 Correct 72 ms 9024 KB Output is correct
41 Correct 72 ms 9032 KB Output is correct
42 Correct 77 ms 9052 KB Output is correct
43 Correct 65 ms 9028 KB Output is correct
44 Correct 65 ms 9056 KB Output is correct
45 Correct 64 ms 9028 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 62 ms 8144 KB Output is correct
48 Correct 61 ms 8104 KB Output is correct
49 Correct 63 ms 8000 KB Output is correct
50 Correct 62 ms 8084 KB Output is correct
51 Correct 61 ms 7996 KB Output is correct
52 Correct 60 ms 8108 KB Output is correct
53 Correct 65 ms 8116 KB Output is correct
54 Correct 76 ms 8048 KB Output is correct
55 Correct 66 ms 8036 KB Output is correct
56 Correct 61 ms 8096 KB Output is correct
57 Correct 60 ms 8156 KB Output is correct
58 Correct 64 ms 8052 KB Output is correct
59 Correct 63 ms 8096 KB Output is correct
60 Correct 62 ms 8012 KB Output is correct
61 Correct 62 ms 8012 KB Output is correct
62 Correct 73 ms 8012 KB Output is correct
63 Correct 61 ms 8004 KB Output is correct
64 Correct 61 ms 8076 KB Output is correct
65 Correct 62 ms 8100 KB Output is correct
66 Correct 63 ms 8008 KB Output is correct
67 Correct 1 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct
69 Correct 1 ms 332 KB Output is correct
70 Correct 1 ms 332 KB Output is correct
71 Correct 1 ms 332 KB Output is correct
72 Correct 1 ms 332 KB Output is correct
73 Correct 1 ms 332 KB Output is correct
74 Correct 1 ms 332 KB Output is correct
75 Correct 1 ms 332 KB Output is correct
76 Correct 1 ms 332 KB Output is correct
77 Correct 1 ms 332 KB Output is correct
78 Correct 1 ms 332 KB Output is correct
79 Correct 1 ms 332 KB Output is correct
80 Correct 1 ms 332 KB Output is correct
81 Correct 1 ms 332 KB Output is correct
82 Correct 1 ms 328 KB Output is correct
83 Correct 1 ms 332 KB Output is correct
84 Correct 1 ms 332 KB Output is correct
85 Correct 1 ms 332 KB Output is correct
86 Correct 1 ms 332 KB Output is correct
87 Correct 1 ms 332 KB Output is correct
88 Correct 1 ms 328 KB Output is correct
89 Correct 0 ms 332 KB Output is correct
90 Correct 1 ms 460 KB Output is correct
91 Correct 1 ms 460 KB Output is correct
92 Correct 1 ms 332 KB Output is correct
93 Correct 1 ms 456 KB Output is correct
94 Correct 1 ms 460 KB Output is correct
95 Correct 1 ms 332 KB Output is correct
96 Correct 1 ms 332 KB Output is correct
97 Correct 1 ms 460 KB Output is correct
98 Correct 1 ms 332 KB Output is correct
99 Correct 1 ms 460 KB Output is correct
100 Correct 1 ms 460 KB Output is correct
101 Correct 1 ms 460 KB Output is correct
102 Correct 1 ms 332 KB Output is correct
103 Correct 0 ms 332 KB Output is correct
104 Correct 1 ms 332 KB Output is correct
105 Correct 1 ms 460 KB Output is correct
106 Correct 1 ms 460 KB Output is correct
107 Correct 1 ms 460 KB Output is correct
108 Correct 1 ms 332 KB Output is correct
109 Correct 2 ms 460 KB Output is correct
110 Correct 1 ms 460 KB Output is correct
111 Correct 1 ms 332 KB Output is correct
112 Correct 96 ms 8100 KB Output is correct
113 Correct 102 ms 8104 KB Output is correct
114 Correct 99 ms 8164 KB Output is correct
115 Correct 99 ms 8096 KB Output is correct
116 Correct 97 ms 8080 KB Output is correct
117 Correct 98 ms 8004 KB Output is correct
118 Correct 101 ms 8068 KB Output is correct
119 Correct 98 ms 8112 KB Output is correct
120 Correct 116 ms 8004 KB Output is correct
121 Correct 98 ms 8112 KB Output is correct
122 Correct 104 ms 8112 KB Output is correct
123 Correct 101 ms 8148 KB Output is correct
124 Correct 97 ms 8088 KB Output is correct
125 Correct 1 ms 332 KB Output is correct
126 Correct 105 ms 8000 KB Output is correct
127 Correct 101 ms 8108 KB Output is correct
128 Correct 97 ms 8096 KB Output is correct
129 Correct 99 ms 8100 KB Output is correct
130 Correct 98 ms 8088 KB Output is correct
131 Correct 99 ms 8096 KB Output is correct
132 Correct 99 ms 8128 KB Output is correct
133 Correct 1 ms 332 KB Output is correct
134 Correct 105 ms 9052 KB Output is correct
135 Correct 106 ms 8976 KB Output is correct
136 Correct 105 ms 9076 KB Output is correct
137 Correct 103 ms 8956 KB Output is correct
138 Correct 105 ms 9004 KB Output is correct
139 Correct 113 ms 9152 KB Output is correct
140 Correct 104 ms 9144 KB Output is correct
141 Correct 103 ms 9064 KB Output is correct
142 Correct 104 ms 9056 KB Output is correct
143 Correct 102 ms 8988 KB Output is correct
144 Correct 107 ms 9048 KB Output is correct
145 Correct 103 ms 9156 KB Output is correct
146 Correct 102 ms 9072 KB Output is correct
147 Correct 0 ms 332 KB Output is correct
148 Correct 109 ms 9028 KB Output is correct
149 Correct 102 ms 9060 KB Output is correct
150 Correct 107 ms 8984 KB Output is correct
151 Correct 115 ms 9000 KB Output is correct
152 Correct 102 ms 9024 KB Output is correct
153 Correct 103 ms 8964 KB Output is correct
154 Correct 103 ms 9056 KB Output is correct