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#19290#1877. Matryoshka DollsForza_FerrariRE 5ms16232kbC++142.9kb2022-01-28 22:49:132022-05-06 04:37:24

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-05-06 04:37:24]
  • 评测
  • 测评结果：RE
  • 用时：5ms
  • 内存：16232kb
查看
  • [2022-01-28 22:49:13]
  • 提交

answer

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
using namespace std;
int n,m,a[500001],p[500001],block,pos[500001],s[500001],pre[500001],nxt[500001],sum[500001],h[500001][2];
long long ans[500001],res;
struct element
{
    int l,r,id;
    bool operator <(const element &other) const
    {
        return pos[l]^pos[other.l]? pos[l]<pos[other.l]:r>other.r;
    }
}q[500001];
inline int read()
{
    int x=0;
    char c=getchar();
    while(c<'0'||c>'9')
        c=getchar();
    while(c>='0'&&c<='9')
    {
        x=(x<<1)+(x<<3)+(c^48);
        c=getchar();
    }
    return x;
}
inline void print(long long x)
{
    if(x>=10)
        print(x/10);
    putchar(x%10+'0');
}
inline int Abs(int x)
{
    return x>=0? x:-x;
}
inline void insert(int x)
{
    ++sum[x];
}
inline void del(int x)
{
    --sum[x];
    if(pre[x])
    {
        res-=Abs(p[pre[x]]-p[x]);
        nxt[pre[x]]=nxt[x];
    }
    if(nxt[x])
    {
        res-=Abs(p[nxt[x]]-p[x]);
        pre[nxt[x]]=pre[x];
    }
    if(pre[x]&&nxt[x])
        res+=Abs(p[pre[x]]-p[nxt[x]]);
    pre[x]=nxt[x]=0;
}
int main()
{
    n=read(),m=read();
    block=n/sqrt(m);
    for(int i=1;i<=n;++i)
    {
        p[a[i]=read()]=i;
        pos[i]=(i-1)/block+1;
        if(pos[i]^pos[i-1])
            s[pos[i]]=i;
    }
    for(int i=1;i<=m;++i)
    {
        q[i].l=read(),q[i].r=read();
        q[i].id=i;
    }
    sort(q+1,q+m+1);
    for(int i=1,l=1,r=0,lst=0;i<=m;++i)
    {
        if(lst^pos[q[i].l])
        {
            lst=pos[q[i].l];
            for(;l>s[pos[q[i].l]];--l)
                insert(a[l-1]);
            for(;r<n;++r)
                insert(a[r+1]);
            for(;l<s[pos[q[i].l]];++l)
                del(a[l]);
            int k=0;
            res=0;
            for(int j=1;j<=n;++j)
            {
                pre[j]=nxt[j]=0;
                if(sum[j])
                {
                    pre[j]=k;
                    if(k)
                    {
                        nxt[k]=j;
                        res+=Abs(p[j]-p[k]);
                    }
                    k=j;
                }
            }
        }
        for(;r>q[i].r;--r)
            del(a[r]);
        long long tmp=res;
        for(int j=l;j<q[i].l;++j)
        {
            h[j][0]=pre[a[j]];
            h[j][1]=nxt[a[j]];
        }
        for(;l<q[i].l;++l)
            del(a[l]);
        ans[q[i].id]=res;
        for(;l>s[pos[q[i].l]];--l)
        {
            pre[a[l-1]]=h[l-1][0];
            nxt[a[l-1]]=h[l-1][1];
            if(pre[a[l-1]])
                nxt[pre[a[l-1]]]=a[l-1];
            if(nxt[a[l-1]])
                pre[nxt[a[l-1]]]=a[l-1];
            h[l-1][0]=h[l-1][1]=0;
            insert(a[l-1]);
        }
        res=tmp;
    }
    for(int i=1;i<=m;++i)
    {
        print(ans[i]);
        putchar('\n');
    }
    return 0;
}
源文件, 语言: C++14

详细

Test #1:

score: 100
Accepted
time: 5ms
memory: 15948kb

input:

5 5
1 5 2 4 3
1 5
1 4
1 3
1 2
1 1

output:

7
5
3
1
0

result:

ok 5 number(s): "7 5 3 1 0"

Test #2:

score: 0
Accepted
time: 2ms
memory: 15892kb

input:

1 1
1
1 1

output:

0

result:

ok 1 number(s): "0"

Test #3:

score: 0
Accepted
time: 0ms
memory: 16232kb

input:

100000 1
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150 152 154 156 158 160 162 164 166 168 170 172 ...

output:

4999950000

result:

ok 1 number(s): "4999950000"

Test #4:

score: 0
Accepted
time: 2ms
memory: 15848kb

input:

20 1
12 8 13 10 18 14 1 19 5 16 15 9 17 20 6 2 11 4 3 7
9 18

output:

36

result:

ok 1 number(s): "36"

Test #5:

score: 0
Accepted
time: 3ms
memory: 15952kb

input:

20 10
5 16 11 7 19 8 12 13 17 18 6 1 14 3 4 2 15 20 10 9
7 11
7 13
7 17
11 15
1 7
4 6
1 5
6 14
3 5
9 9

output:

7
16
34
9
20
3
8
22
3
0

result:

ok 10 numbers

Test #6:

score: 0
Accepted
time: 0ms
memory: 15956kb

input:

20 50
7 3 13 8 9 18 1 15 12 10 20 11 17 16 2 19 5 4 6 14
3 6
5 15
11 20
10 18
9 20
3 17
13 20
16 17
3 20
4 17
15 18
5 19
3 14
8 20
2 20
1 4
15 19
16 20
5 13
14 17
4 10
6 16
8 16
1 12
4 9
11 15
4 20
8 11
3 16
7 7
3 11
3 7
4 4
5 12
6 20
3 14
6 19
6 19
2 14
2 12
5 6
4 6
8 15
10 19
4 14
1 16
1 20
2 13
3...

output:

6
48
36
24
46
74
17
1
104
64
5
68
44
58
130
5
9
8
30
7
13
48
26
38
11
8
92
5
70
0
28
9
0
20
80
44
58
58
48
36
1
2
20
28
34
76
136
46
1
28

result:

ok 50 numbers

Test #7:

score: 0
Accepted
time: 1ms
memory: 15884kb

input:

20 100
4 13 20 8 1 18 19 9 17 5 12 7 11 16 6 3 15 10 14 2
4 19
1 6
6 19
4 6
2 17
1 5
11 13
1 15
9 17
9 15
7 20
3 19
10 19
1 10
11 17
10 17
2 18
17 20
12 19
1 3
5 17
7 13
6 18
10 20
1 6
2 17
5 9
4 13
11 13
2 20
7 13
12 17
5 19
17 20
11 19
3 15
3 5
5 11
1 17
10 15
16 20
1 6
2 19
4 12
5 18
9 17
3 6
12 ...

output:

76
16
57
3
84
10
3
74
31
19
59
80
40
44
16
26
94
5
26
2
54
17
53
44
16
84
8
32
3
106
17
12
68
5
30
48
2
16
102
14
9
16
98
28
64
31
6
1
54
20
26
31
74
5
26
3
66
32
36
59
1
26
6
33
35
5
57
1
1
57
24
6
10
68
36
41
34
0
12
8
11
2
62
12
41
10
5
25
0
60
0
44
25
12
8
2
16
36
8
1

result:

ok 100 numbers

Test #8:

score: 0
Accepted
time: 3ms
memory: 15896kb

input:

20 228
7 3 17 10 16 11 19 5 1 13 20 18 14 2 8 4 6 9 12 15
7 20
2 20
10 13
14 19
1 9
12 20
17 19
9 20
10 12
14 17
4 15
7 16
5 12
13 16
16 18
7 18
1 11
7 17
2 20
6 8
9 17
12 18
7 18
3 4
7 13
1 4
6 12
6 10
3 17
3 4
5 14
7 13
9 20
6 20
2 4
14 17
17 20
1 7
19 20
4 20
14 15
12 16
4 6
4 15
10 11
2 16
2 20
...

output:

66
136
5
9
32
30
2
42
3
5
62
40
28
5
2
50
44
44
136
3
20
14
50
1
16
5
18
10
74
1
44
16
42
90
3
5
3
13
1
108
1
6
3
62
1
94
136
3
14
42
3
80
26
6
54
7
26
26
31
1
74
38
15
14
52
26
14
6
4
7
3
2
70
13
2
44
6
76
26
90
1
66
108
0
28
16
132
18
7
3
14
48
7
15
1
8
9
22
9
18
36
5
70
44
42
3
1
42
0
3
3
8
3
62
...

result:

ok 228 numbers

Test #9:

score: 0
Accepted
time: 2ms
memory: 15952kb

input:

20 322
3 11 4 1 9 19 7 12 5 17 8 15 10 18 13 2 20 16 14 6
8 14
6 6
3 17
3 16
9 18
7 17
12 13
4 14
12 18
6 13
8 9
3 17
7 20
12 16
10 15
12 16
12 14
16 19
6 7
18 20
6 16
7 14
5 19
12 13
3 14
10 15
11 18
12 20
8 9
1 13
17 18
1 18
4 19
4 9
5 19
4 5
1 2
10 17
11 19
7 14
15 20
20 20
4 7
12 15
7 17
3 13
7 ...

output:

19
0
91
80
37
39
1
48
21
23
1
91
81
10
13
10
3
5
1
2
44
23
87
1
50
13
25
37
1
58
1
119
99
14
87
1
1
21
33
23
15
0
6
7
39
42
36
1
91
3
107
25
1
44
1
0
10
7
1
1
55
3
10
2
34
91
1
51
26
25
75
1
1
18
79
13
1
80
21
16
5
3
0
18
3
7
63
63
66
3
0
5
17
0
21
10
1
3
5
1
6
35
41
29
59
43
21
0
45
3
6
75
1
103
0
...

result:

ok 322 numbers

Test #10:

score: -100
Runtime Error

input:

20 1000
16 6 17 1 12 11 5 8 10 19 4 18 2 9 14 7 15 3 20 13
1 6
8 9
9 11
5 18
3 20
2 9
17 18
12 12
12 20
5 17
1 8
10 10
2 9
17 19
1 7
7 15
12 19
2 7
9 14
2 14
1 4
15 17
11 19
2 5
3 12
11 14
11 14
13 17
7 8
9 18
2 11
8 11
1 4
4 8
12 13
12 19
7 16
12 16
11 15
5 9
5 18
2 19
11 15
1 15
4 20
4 9
5 14
5 19...

output:

result:
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服务器时间: 2024-11-30 00:49:31 | 开源项目