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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#23303 | #1877. Matryoshka Dolls | zfz2 | RE | 142ms | 4564kb | C++14 | 1.6kb | 2022-03-14 20:35:48 | 2022-04-30 02:46:46 |
Judging History
answer
#pragma GCC optimize(2)
#include<bits/stdc++.h>
#define ll long long
using namespace std;
template <class T> inline T read(){
T r=0,f=0;char c=getchar();
while(!isdigit(c)) f|=c=='-',c=getchar();
while(isdigit(c)) r=(r<<3)+(r<<1)+(c^48),c=getchar();
return f?-r:r;
}
const int N=5e5+5;
int n,m,block,a[N],b[N];
struct query{
int l,r,id;
bool operator <(const query &x)const{
return l/block==x.l/block?(l/block)&1?r<x.r:r>x.r:l<x.l;
}
}Q[N];
int L=1,R=0;
ll sum,ans[N];
bitset<N> S1,S2;
inline int findpre(int x){int t=S1._Find_next(x); return t^N?b[t]:N;}
inline int findnxt(int x){int t=S2._Find_next(500000-x); return t^N?b[500000-t]:N;}
inline void insert(int x){S1.set(x),S2.set(500000-x);}
inline void erase(int x){S1.set(x,0),S2.set(500000-x,0);}
inline int abs(int x){return x<0?-x:x;}
inline void add(int x){
int u=findpre(a[x]),v=findnxt(a[x]);
if(u!=N&&v!=N) sum-=abs(u-v);
if(u!=N) sum+=abs(u-x);
if(v!=N) sum+=abs(v-x);
insert(a[x]);
}
inline void del(int x){
int u=findpre(a[x]),v=findnxt(a[x]);
if(u!=N&&v!=N) sum+=abs(u-v);
if(u!=N) sum-=abs(u-x);
if(v!=N) sum-=abs(v-x);
erase(a[x]);
}
signed main(){
n=read<int>(),m=read<int>(),block=n/sqrt(m);
for(int i=1;i<=n;++i) a[i]=read<int>(),b[a[i]]=i;
for(int i=1;i<=m;++i) Q[i].l=read<int>(),Q[i].r=read<int>(),Q[i].id=i;
sort(Q+1,Q+1+m);
for(int i=1;i<=m;++i){
while(R<Q[i].r) add(++R);
while(L<Q[i].l) del(L++);
while(L>Q[i].l) add(--L);
while(R>Q[i].r) del(R--);
ans[Q[i].id]=sum;
}
for(int i=1;i<=m;++i) printf("%lld\n",ans[i]);
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 3744kb
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: 3772kb
input:
1 1 1 1 1
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 142ms
memory: 4564kb
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: 3ms
memory: 3692kb
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: 3612kb
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: 3ms
memory: 3744kb
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: 3ms
memory: 3660kb
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: 0ms
memory: 3692kb
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: 3736kb
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...