oj.uz

답안 #492562

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
492562 2021-12-08T00:58:14 Z anonymous Cryptography (NOI20_crypto) C++14
100 / 100
 127 ms 9164 KB 
#include <iostream>
#include <algorithm>
#define MAXN 300005
#define LL long long
#define MOD 1000000007
using namespace std;

int N,P[MAXN], Lookup[MAXN];
LL fac[MAXN]={1}, ans;

class Fenwick {
    int BIT[MAXN];
public:
    void upd(int x) {
        for (; x<=N; x+= x&(-x)) {BIT[x]++;}
    }
    LL ask(int p) {
        int res = 0;
        for (; p>0; p-=p&(-p)) {res += BIT[p];}
        return res;
    }
} FT;

int main() {
    //freopen("cryptin.txt","r",stdin);
    scanf("%d",&N);
    for (LL i=1; i<=N; i++) {
        scanf("%d",&P[i]);
        Lookup[i] = P[i];
        fac[i] = (i*fac[i-1]) % MOD;
    }
    sort(Lookup+1, Lookup+N+1);
    for (int i=1; i<=N; i++) {
        LL ord = lower_bound(Lookup+1, Lookup+N+1, P[i]) - Lookup;
        ans = (ans + fac[N-i]*(ord-1-FT.ask(ord))) % MOD;
        FT.upd(ord);
    }
    printf("%lld", (ans+1) % MOD);
}

Compilation message

Crypto.cpp: In function 'int main()':
Crypto.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |     scanf("%d",&N);
      |     ~~~~~^~~~~~~~~
Crypto.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |         scanf("%d",&P[i]);
      |         ~~~~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 276 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 276 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 69 ms 6128 KB Output is correct
3 Correct 68 ms 6036 KB Output is correct
4 Correct 71 ms 6132 KB Output is correct
5 Correct 68 ms 6056 KB Output is correct
6 Correct 68 ms 6068 KB Output is correct
7 Correct 73 ms 6096 KB Output is correct
8 Correct 71 ms 6084 KB Output is correct
9 Correct 75 ms 6152 KB Output is correct
10 Correct 70 ms 6032 KB Output is correct
11 Correct 70 ms 6072 KB Output is correct
12 Correct 68 ms 6116 KB Output is correct
13 Correct 69 ms 6056 KB Output is correct
14 Correct 68 ms 6088 KB Output is correct
15 Correct 71 ms 6340 KB Output is correct
16 Correct 68 ms 6136 KB Output is correct
17 Correct 70 ms 6072 KB Output is correct
18 Correct 68 ms 6084 KB Output is correct
19 Correct 70 ms 6128 KB Output is correct
20 Correct 70 ms 6112 KB Output is correct
21 Correct 70 ms 6056 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 64 ms 6040 KB Output is correct
3 Correct 66 ms 6104 KB Output is correct
4 Correct 68 ms 6136 KB Output is correct
5 Correct 63 ms 6124 KB Output is correct
6 Correct 65 ms 6108 KB Output is correct
7 Correct 62 ms 6064 KB Output is correct
8 Correct 63 ms 6084 KB Output is correct
9 Correct 62 ms 6176 KB Output is correct
10 Correct 65 ms 6084 KB Output is correct
11 Correct 70 ms 6084 KB Output is correct
12 Correct 66 ms 6212 KB Output is correct
13 Correct 62 ms 6084 KB Output is correct
14 Correct 62 ms 6128 KB Output is correct
15 Correct 64 ms 6060 KB Output is correct
16 Correct 64 ms 6096 KB Output is correct
17 Correct 62 ms 6072 KB Output is correct
18 Correct 63 ms 6156 KB Output is correct
19 Correct 63 ms 6124 KB Output is correct
20 Correct 62 ms 6084 KB Output is correct
21 Correct 64 ms 6036 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 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 352 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 0 ms 204 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 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 316 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 276 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 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 352 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 0 ms 204 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 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 316 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 2 ms 332 KB Output is correct
49 Correct 2 ms 332 KB Output is correct
50 Correct 2 ms 320 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 332 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 332 KB Output is correct
56 Correct 2 ms 356 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 0 ms 204 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 2 ms 320 KB Output is correct
64 Correct 1 ms 332 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 1 ms 332 KB Output is correct
68 Correct 1 ms 332 KB Output is correct

Subtask #7
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 64 ms 6040 KB Output is correct
3 Correct 66 ms 6104 KB Output is correct
4 Correct 68 ms 6136 KB Output is correct
5 Correct 63 ms 6124 KB Output is correct
6 Correct 65 ms 6108 KB Output is correct
7 Correct 62 ms 6064 KB Output is correct
8 Correct 63 ms 6084 KB Output is correct
9 Correct 62 ms 6176 KB Output is correct
10 Correct 65 ms 6084 KB Output is correct
11 Correct 70 ms 6084 KB Output is correct
12 Correct 66 ms 6212 KB Output is correct
13 Correct 62 ms 6084 KB Output is correct
14 Correct 62 ms 6128 KB Output is correct
15 Correct 64 ms 6060 KB Output is correct
16 Correct 64 ms 6096 KB Output is correct
17 Correct 62 ms 6072 KB Output is correct
18 Correct 63 ms 6156 KB Output is correct
19 Correct 63 ms 6124 KB Output is correct
20 Correct 62 ms 6084 KB Output is correct
21 Correct 64 ms 6036 KB Output is correct
22 Correct 0 ms 204 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 352 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 0 ms 204 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 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 316 KB Output is correct
44 Correct 0 ms 204 KB Output is correct
45 Correct 117 ms 8028 KB Output is correct
46 Correct 111 ms 7996 KB Output is correct
47 Correct 113 ms 8088 KB Output is correct
48 Correct 118 ms 8132 KB Output is correct
49 Correct 116 ms 8080 KB Output is correct
50 Correct 119 ms 8076 KB Output is correct
51 Correct 112 ms 8088 KB Output is correct
52 Correct 113 ms 8052 KB Output is correct
53 Correct 112 ms 8004 KB Output is correct
54 Correct 115 ms 8076 KB Output is correct
55 Correct 109 ms 8076 KB Output is correct
56 Correct 112 ms 8020 KB Output is correct
57 Correct 112 ms 8092 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 121 ms 8132 KB Output is correct
60 Correct 113 ms 8028 KB Output is correct
61 Correct 111 ms 8088 KB Output is correct
62 Correct 112 ms 8088 KB Output is correct
63 Correct 113 ms 8100 KB Output is correct
64 Correct 115 ms 8088 KB Output is correct
65 Correct 111 ms 8048 KB Output is correct

Subtask #8
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 276 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 69 ms 6128 KB Output is correct
27 Correct 68 ms 6036 KB Output is correct
28 Correct 71 ms 6132 KB Output is correct
29 Correct 68 ms 6056 KB Output is correct
30 Correct 68 ms 6068 KB Output is correct
31 Correct 73 ms 6096 KB Output is correct
32 Correct 71 ms 6084 KB Output is correct
33 Correct 75 ms 6152 KB Output is correct
34 Correct 70 ms 6032 KB Output is correct
35 Correct 70 ms 6072 KB Output is correct
36 Correct 68 ms 6116 KB Output is correct
37 Correct 69 ms 6056 KB Output is correct
38 Correct 68 ms 6088 KB Output is correct
39 Correct 71 ms 6340 KB Output is correct
40 Correct 68 ms 6136 KB Output is correct
41 Correct 70 ms 6072 KB Output is correct
42 Correct 68 ms 6084 KB Output is correct
43 Correct 70 ms 6128 KB Output is correct
44 Correct 70 ms 6112 KB Output is correct
45 Correct 70 ms 6056 KB Output is correct
46 Correct 0 ms 204 KB Output is correct
47 Correct 64 ms 6040 KB Output is correct
48 Correct 66 ms 6104 KB Output is correct
49 Correct 68 ms 6136 KB Output is correct
50 Correct 63 ms 6124 KB Output is correct
51 Correct 65 ms 6108 KB Output is correct
52 Correct 62 ms 6064 KB Output is correct
53 Correct 63 ms 6084 KB Output is correct
54 Correct 62 ms 6176 KB Output is correct
55 Correct 65 ms 6084 KB Output is correct
56 Correct 70 ms 6084 KB Output is correct
57 Correct 66 ms 6212 KB Output is correct
58 Correct 62 ms 6084 KB Output is correct
59 Correct 62 ms 6128 KB Output is correct
60 Correct 64 ms 6060 KB Output is correct
61 Correct 64 ms 6096 KB Output is correct
62 Correct 62 ms 6072 KB Output is correct
63 Correct 63 ms 6156 KB Output is correct
64 Correct 63 ms 6124 KB Output is correct
65 Correct 62 ms 6084 KB Output is correct
66 Correct 64 ms 6036 KB Output is correct
67 Correct 0 ms 204 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 352 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 0 ms 204 KB Output is correct
82 Correct 1 ms 332 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 316 KB Output is correct
89 Correct 1 ms 204 KB Output is correct
90 Correct 2 ms 332 KB Output is correct
91 Correct 2 ms 332 KB Output is correct
92 Correct 2 ms 320 KB Output is correct
93 Correct 1 ms 332 KB Output is correct
94 Correct 1 ms 332 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 332 KB Output is correct
98 Correct 2 ms 356 KB Output is correct
99 Correct 1 ms 332 KB Output is correct
100 Correct 1 ms 332 KB Output is correct
101 Correct 1 ms 332 KB Output is correct
102 Correct 1 ms 332 KB Output is correct
103 Correct 0 ms 204 KB Output is correct
104 Correct 1 ms 332 KB Output is correct
105 Correct 2 ms 320 KB Output is correct
106 Correct 1 ms 332 KB Output is correct
107 Correct 1 ms 332 KB Output is correct
108 Correct 1 ms 332 KB Output is correct
109 Correct 1 ms 332 KB Output is correct
110 Correct 1 ms 332 KB Output is correct
111 Correct 0 ms 204 KB Output is correct
112 Correct 117 ms 8028 KB Output is correct
113 Correct 111 ms 7996 KB Output is correct
114 Correct 113 ms 8088 KB Output is correct
115 Correct 118 ms 8132 KB Output is correct
116 Correct 116 ms 8080 KB Output is correct
117 Correct 119 ms 8076 KB Output is correct
118 Correct 112 ms 8088 KB Output is correct
119 Correct 113 ms 8052 KB Output is correct
120 Correct 112 ms 8004 KB Output is correct
121 Correct 115 ms 8076 KB Output is correct
122 Correct 109 ms 8076 KB Output is correct
123 Correct 112 ms 8020 KB Output is correct
124 Correct 112 ms 8092 KB Output is correct
125 Correct 0 ms 204 KB Output is correct
126 Correct 121 ms 8132 KB Output is correct
127 Correct 113 ms 8028 KB Output is correct
128 Correct 111 ms 8088 KB Output is correct
129 Correct 112 ms 8088 KB Output is correct
130 Correct 113 ms 8100 KB Output is correct
131 Correct 115 ms 8088 KB Output is correct
132 Correct 111 ms 8048 KB Output is correct
133 Correct 0 ms 204 KB Output is correct
134 Correct 122 ms 9052 KB Output is correct
135 Correct 120 ms 9028 KB Output is correct
136 Correct 121 ms 9028 KB Output is correct
137 Correct 120 ms 9048 KB Output is correct
138 Correct 123 ms 8960 KB Output is correct
139 Correct 124 ms 9032 KB Output is correct
140 Correct 120 ms 8984 KB Output is correct
141 Correct 120 ms 8968 KB Output is correct
142 Correct 118 ms 9008 KB Output is correct
143 Correct 116 ms 9164 KB Output is correct
144 Correct 119 ms 9120 KB Output is correct
145 Correct 123 ms 9136 KB Output is correct
146 Correct 127 ms 8936 KB Output is correct
147 Correct 0 ms 204 KB Output is correct
148 Correct 116 ms 9000 KB Output is correct
149 Correct 120 ms 9048 KB Output is correct
150 Correct 121 ms 9156 KB Output is correct
151 Correct 118 ms 9048 KB Output is correct
152 Correct 120 ms 9028 KB Output is correct
153 Correct 121 ms 9048 KB Output is correct
154 Correct 120 ms 9028 KB Output is correct