oj.uz

답안 #504822

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
504822 2022-01-10T09:02:30 Z ToroTN Cryptography (NOI20_crypto) C++14
35 / 100
 238 ms 33212 KB 
#include<bits/stdc++.h>
using namespace std;
long long n,a[300005],b[300005],fac[300005],fen[300005],c[300005],ans=0;
vector<long long> v;
map<long long,long long> mp;
void update(long long u,long long val)
{
    while(u<=n)
    {
        fen[u]+=val;
        fen[u]%=1000000007;
        u+=(u&(-u));
    }
}
long long query(long long u)
{
    long long val=0;
    while(u>=1)
    {
        val+=fen[u];
        val%=1000000007;
        u-=(u&(-u));
    }
    return val;
}
int main()
{
    scanf("%lld",&n);
    for(int i=1;i<=n;i++)
    {
        scanf("%lld",&a[i]);
        v.push_back(a[i]);
    }
    v.push_back(-1);
    sort(v.begin(),v.end());
    for(int i=1;i<=n;i++)
    {
        mp[v[i]]=i;
    }
    for(int i=1;i<=n;i++)
    {
        b[i]=mp[a[i]];
    }
    /*for(int i=1;i<=n;i++)
    {
        printf("%d ",b[i]);
    }
    printf("\n");*/
    fac[0]=1;
    for(int i=1;i<=300000;i++)
    {
        fac[i]=fac[i-1]*i;
        fac[i]%=1000000007;
    }
    for(int i=n;i>=1;i--)
    {
        update(b[i],1);
        c[i]=query(b[i]);
    }
    for(int i=1;i<=n;i++)
    {
        //printf("%d ",c[i]);
        ans+=(c[i]-1)*fac[n-i];
        ans%=1000000007;
    }
    printf("%lld\n",ans+1);
    //printf("\n");
}

Compilation message

Crypto.cpp: In function 'int main()':
Crypto.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
Crypto.cpp:31:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |         scanf("%lld",&a[i]);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 4 ms 2636 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 4 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 3 ms 2636 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2636 KB Output is correct
7 Correct 3 ms 2564 KB Output is correct
8 Correct 4 ms 2596 KB Output is correct
9 Correct 3 ms 2636 KB Output is correct
10 Correct 3 ms 2636 KB Output is correct
11 Correct 3 ms 2560 KB Output is correct
12 Correct 3 ms 2636 KB Output is correct
13 Correct 3 ms 2636 KB Output is correct
14 Correct 3 ms 2636 KB Output is correct
15 Correct 3 ms 2636 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 3 ms 2636 KB Output is correct
20 Correct 4 ms 2636 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 3 ms 2636 KB Output is correct
23 Correct 4 ms 2636 KB Output is correct
24 Correct 3 ms 2636 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2636 KB Output is correct
2 Correct 238 ms 33124 KB Output is correct
3 Correct 168 ms 33104 KB Output is correct
4 Correct 167 ms 33052 KB Output is correct
5 Correct 153 ms 33132 KB Output is correct
6 Correct 158 ms 33040 KB Output is correct
7 Correct 228 ms 33180 KB Output is correct
8 Correct 163 ms 33064 KB Output is correct
9 Correct 180 ms 33068 KB Output is correct
10 Correct 184 ms 33084 KB Output is correct
11 Correct 229 ms 33136 KB Output is correct
12 Correct 169 ms 33164 KB Output is correct
13 Correct 185 ms 33120 KB Output is correct
14 Correct 202 ms 33056 KB Output is correct
15 Correct 227 ms 33064 KB Output is correct
16 Correct 176 ms 33144 KB Output is correct
17 Correct 186 ms 33148 KB Output is correct
18 Correct 176 ms 33060 KB Output is correct
19 Correct 152 ms 33136 KB Output is correct
20 Correct 170 ms 33112 KB Output is correct
21 Correct 154 ms 33088 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 160 ms 33120 KB Output is correct
3 Correct 152 ms 33132 KB Output is correct
4 Correct 198 ms 33212 KB Output is correct
5 Correct 170 ms 33156 KB Output is correct
6 Correct 157 ms 33140 KB Output is correct
7 Correct 156 ms 33152 KB Output is correct
8 Correct 192 ms 33084 KB Output is correct
9 Correct 184 ms 33068 KB Output is correct
10 Correct 190 ms 33132 KB Output is correct
11 Correct 178 ms 33052 KB Output is correct
12 Correct 190 ms 33064 KB Output is correct
13 Correct 155 ms 33072 KB Output is correct
14 Correct 150 ms 33140 KB Output is correct
15 Correct 183 ms 33164 KB Output is correct
16 Correct 155 ms 33104 KB Output is correct
17 Correct 168 ms 33140 KB Output is correct
18 Correct 179 ms 33136 KB Output is correct
19 Correct 157 ms 33064 KB Output is correct
20 Correct 167 ms 33128 KB Output is correct
21 Correct 183 ms 33052 KB Output is correct

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 6 ms 2892 KB Output is correct
3 Correct 4 ms 2868 KB Output is correct
4 Correct 5 ms 2892 KB Output is correct
5 Correct 5 ms 2892 KB Output is correct
6 Correct 4 ms 2892 KB Output is correct
7 Correct 6 ms 2892 KB Output is correct
8 Correct 4 ms 2892 KB Output is correct
9 Correct 5 ms 2892 KB Output is correct
10 Correct 4 ms 2892 KB Output is correct
11 Correct 6 ms 2892 KB Output is correct
12 Correct 4 ms 2892 KB Output is correct
13 Correct 4 ms 2892 KB Output is correct
14 Correct 4 ms 2892 KB Output is correct
15 Incorrect 3 ms 2636 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 4 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 3 ms 2636 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2636 KB Output is correct
7 Correct 3 ms 2564 KB Output is correct
8 Correct 4 ms 2596 KB Output is correct
9 Correct 3 ms 2636 KB Output is correct
10 Correct 3 ms 2636 KB Output is correct
11 Correct 3 ms 2560 KB Output is correct
12 Correct 3 ms 2636 KB Output is correct
13 Correct 3 ms 2636 KB Output is correct
14 Correct 3 ms 2636 KB Output is correct
15 Correct 3 ms 2636 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 3 ms 2636 KB Output is correct
20 Correct 4 ms 2636 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 3 ms 2636 KB Output is correct
23 Correct 4 ms 2636 KB Output is correct
24 Correct 3 ms 2636 KB Output is correct
25 Correct 3 ms 2636 KB Output is correct
26 Correct 6 ms 2892 KB Output is correct
27 Correct 4 ms 2868 KB Output is correct
28 Correct 5 ms 2892 KB Output is correct
29 Correct 5 ms 2892 KB Output is correct
30 Correct 4 ms 2892 KB Output is correct
31 Correct 6 ms 2892 KB Output is correct
32 Correct 4 ms 2892 KB Output is correct
33 Correct 5 ms 2892 KB Output is correct
34 Correct 4 ms 2892 KB Output is correct
35 Correct 6 ms 2892 KB Output is correct
36 Correct 4 ms 2892 KB Output is correct
37 Correct 4 ms 2892 KB Output is correct
38 Correct 4 ms 2892 KB Output is correct
39 Incorrect 3 ms 2636 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #7
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 160 ms 33120 KB Output is correct
3 Correct 152 ms 33132 KB Output is correct
4 Correct 198 ms 33212 KB Output is correct
5 Correct 170 ms 33156 KB Output is correct
6 Correct 157 ms 33140 KB Output is correct
7 Correct 156 ms 33152 KB Output is correct
8 Correct 192 ms 33084 KB Output is correct
9 Correct 184 ms 33068 KB Output is correct
10 Correct 190 ms 33132 KB Output is correct
11 Correct 178 ms 33052 KB Output is correct
12 Correct 190 ms 33064 KB Output is correct
13 Correct 155 ms 33072 KB Output is correct
14 Correct 150 ms 33140 KB Output is correct
15 Correct 183 ms 33164 KB Output is correct
16 Correct 155 ms 33104 KB Output is correct
17 Correct 168 ms 33140 KB Output is correct
18 Correct 179 ms 33136 KB Output is correct
19 Correct 157 ms 33064 KB Output is correct
20 Correct 167 ms 33128 KB Output is correct
21 Correct 183 ms 33052 KB Output is correct
22 Correct 3 ms 2636 KB Output is correct
23 Correct 6 ms 2892 KB Output is correct
24 Correct 4 ms 2868 KB Output is correct
25 Correct 5 ms 2892 KB Output is correct
26 Correct 5 ms 2892 KB Output is correct
27 Correct 4 ms 2892 KB Output is correct
28 Correct 6 ms 2892 KB Output is correct
29 Correct 4 ms 2892 KB Output is correct
30 Correct 5 ms 2892 KB Output is correct
31 Correct 4 ms 2892 KB Output is correct
32 Correct 6 ms 2892 KB Output is correct
33 Correct 4 ms 2892 KB Output is correct
34 Correct 4 ms 2892 KB Output is correct
35 Correct 4 ms 2892 KB Output is correct
36 Incorrect 3 ms 2636 KB Output isn't correct
37 Halted 0 ms 0 KB -

Subtask #8
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 2636 KB Output is correct
2 Correct 4 ms 2636 KB Output is correct
3 Correct 3 ms 2636 KB Output is correct
4 Correct 3 ms 2636 KB Output is correct
5 Correct 3 ms 2636 KB Output is correct
6 Correct 3 ms 2636 KB Output is correct
7 Correct 3 ms 2564 KB Output is correct
8 Correct 4 ms 2596 KB Output is correct
9 Correct 3 ms 2636 KB Output is correct
10 Correct 3 ms 2636 KB Output is correct
11 Correct 3 ms 2560 KB Output is correct
12 Correct 3 ms 2636 KB Output is correct
13 Correct 3 ms 2636 KB Output is correct
14 Correct 3 ms 2636 KB Output is correct
15 Correct 3 ms 2636 KB Output is correct
16 Correct 3 ms 2636 KB Output is correct
17 Correct 3 ms 2636 KB Output is correct
18 Correct 3 ms 2636 KB Output is correct
19 Correct 3 ms 2636 KB Output is correct
20 Correct 4 ms 2636 KB Output is correct
21 Correct 3 ms 2636 KB Output is correct
22 Correct 3 ms 2636 KB Output is correct
23 Correct 4 ms 2636 KB Output is correct
24 Correct 3 ms 2636 KB Output is correct
25 Correct 4 ms 2636 KB Output is correct
26 Correct 238 ms 33124 KB Output is correct
27 Correct 168 ms 33104 KB Output is correct
28 Correct 167 ms 33052 KB Output is correct
29 Correct 153 ms 33132 KB Output is correct
30 Correct 158 ms 33040 KB Output is correct
31 Correct 228 ms 33180 KB Output is correct
32 Correct 163 ms 33064 KB Output is correct
33 Correct 180 ms 33068 KB Output is correct
34 Correct 184 ms 33084 KB Output is correct
35 Correct 229 ms 33136 KB Output is correct
36 Correct 169 ms 33164 KB Output is correct
37 Correct 185 ms 33120 KB Output is correct
38 Correct 202 ms 33056 KB Output is correct
39 Correct 227 ms 33064 KB Output is correct
40 Correct 176 ms 33144 KB Output is correct
41 Correct 186 ms 33148 KB Output is correct
42 Correct 176 ms 33060 KB Output is correct
43 Correct 152 ms 33136 KB Output is correct
44 Correct 170 ms 33112 KB Output is correct
45 Correct 154 ms 33088 KB Output is correct
46 Correct 3 ms 2636 KB Output is correct
47 Correct 160 ms 33120 KB Output is correct
48 Correct 152 ms 33132 KB Output is correct
49 Correct 198 ms 33212 KB Output is correct
50 Correct 170 ms 33156 KB Output is correct
51 Correct 157 ms 33140 KB Output is correct
52 Correct 156 ms 33152 KB Output is correct
53 Correct 192 ms 33084 KB Output is correct
54 Correct 184 ms 33068 KB Output is correct
55 Correct 190 ms 33132 KB Output is correct
56 Correct 178 ms 33052 KB Output is correct
57 Correct 190 ms 33064 KB Output is correct
58 Correct 155 ms 33072 KB Output is correct
59 Correct 150 ms 33140 KB Output is correct
60 Correct 183 ms 33164 KB Output is correct
61 Correct 155 ms 33104 KB Output is correct
62 Correct 168 ms 33140 KB Output is correct
63 Correct 179 ms 33136 KB Output is correct
64 Correct 157 ms 33064 KB Output is correct
65 Correct 167 ms 33128 KB Output is correct
66 Correct 183 ms 33052 KB Output is correct
67 Correct 3 ms 2636 KB Output is correct
68 Correct 6 ms 2892 KB Output is correct
69 Correct 4 ms 2868 KB Output is correct
70 Correct 5 ms 2892 KB Output is correct
71 Correct 5 ms 2892 KB Output is correct
72 Correct 4 ms 2892 KB Output is correct
73 Correct 6 ms 2892 KB Output is correct
74 Correct 4 ms 2892 KB Output is correct
75 Correct 5 ms 2892 KB Output is correct
76 Correct 4 ms 2892 KB Output is correct
77 Correct 6 ms 2892 KB Output is correct
78 Correct 4 ms 2892 KB Output is correct
79 Correct 4 ms 2892 KB Output is correct
80 Correct 4 ms 2892 KB Output is correct
81 Incorrect 3 ms 2636 KB Output isn't correct
82 Halted 0 ms 0 KB -