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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#19188 | #1877. Matryoshka Dolls | Kubic | RE | 7ms | 8280kb | C++14 | 1.9kb | 2022-01-28 14:06:53 | 2022-05-06 04:24:01 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define N 500005
#define LIM 1000005
#define ll long long
#define gc() (P1==P2 && (P2=(P1=buf)+fread(buf,1,LIM,stdin),P1==P2)?EOF:*P1++)
#define set(a,vl) memset(a,vl,sizeof(a))
char *P1,*P2,buf[LIM];
int n,m,B,a[N],rv[N],bl[N],L[N],R[N];ll nw,ans[N];bool vs[N];
struct Query {int id,l,r;}b[N];struct Node {int pr,sf;}ls[N];
int abs(int x) {return x<0?-x:x;}
int rd()
{
int res=0;char c=0;while(!isdigit(c)) c=gc();
while(isdigit(c)) res=res*10+c-48,c=gc();return res;
}
bool cmp(Query x,Query y) {return bl[x.l]==bl[y.l]?x.r>y.r:bl[x.l]<bl[y.l];}
void init()
{
B=n/sqrt(m);
for(int i=1;i<=n;++i)
{bl[i]=(i-1)/B+1;if(bl[i]>bl[i-1]) L[bl[i]]=i;R[bl[i]]=i;}
}
void build(int x)
{
int lst=0;nw=0;set(vs,0);for(int i=L[x];i<=n;++i) vs[a[i]]=1;
for(int i=1;i<=n;++i) if(vs[i])
{
ls[i]=(Node) {0,0};
if(lst) ls[lst].sf=i,ls[i].pr=lst,nw+=abs(rv[i]-rv[lst]);lst=i;
}
}
void dlt(int x)
{
int pr=ls[x].pr,sf=ls[x].sf;if(pr) ls[pr].sf=sf;if(sf) ls[sf].pr=pr;
if(pr) nw-=abs(rv[x]-rv[pr]);if(sf) nw-=abs(rv[x]-rv[sf]);
if(pr && sf) nw+=abs(rv[pr]-rv[sf]);
}
void rev(int x)
{
int pr=ls[x].pr,sf=ls[x].sf;if(pr) ls[pr].sf=x;if(sf) ls[sf].pr=x;
if(pr) nw+=abs(rv[x]-rv[pr]);if(sf) nw+=abs(rv[x]-rv[sf]);
if(pr && sf) nw-=abs(rv[pr]-rv[sf]);
}
void slv(int x,int &y)
{
int r=n;build(x);
while(y<=m && bl[b[y].l]==x)
{
while(r>b[y].r) dlt(a[r--]);for(int i=L[x];i<b[y].l;++i) dlt(a[i]);
ans[b[y].id]=nw;for(int i=b[y].l-1;i>=L[x];--i) rev(a[i]);++y;
}
}
void print(ll x)
{if(x<10) {putchar(x+48);return;}print(x/10);putchar(x%10+48);}
int main()
{
n=rd();m=rd();init();for(int i=1;i<=n;++i) a[i]=rd(),rv[a[i]]=i;
for(int i=1;i<=m;++i) b[i].id=i,b[i].l=rd(),b[i].r=rd();
sort(b+1,b+m+1,cmp);for(int i=1,j=1;i<=bl[n];++i) slv(i,j);
for(int i=1;i<=m;++i) print(ans[i]),puts("");return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 6028kb
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: 0ms
memory: 6144kb
input:
1 1 1 1 1
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 7ms
memory: 8280kb
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: 4ms
memory: 6024kb
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: 1ms
memory: 6256kb
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: 1ms
memory: 6160kb
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: 4ms
memory: 6140kb
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: 4ms
memory: 6244kb
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: 4ms
memory: 6032kb
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...