Submission #1268684
Source Code Expand
#include<iostream> using namespace std; int n,p[1<<18],q[1<<18],t[1<<18],f[1<<18]; bool circle(int a,int b,int c){return q[a]<q[b]&&q[b]<q[c]||q[b]<q[c]&&q[c]<q[a]||q[c]<q[a]&&q[a]<q[b];} main() { cin>>n; for(int i=0;i<n;i++) { cin>>p[i]; q[p[i]]=i; } f[n]=n; for(int i=n;--i;) { if(t[i+1]) { if(circle(f[i+1],i,i+1)) { t[i]=t[i+1],f[i]=f[i+1]; } else { t[i]=t[i+1]+1,f[i]=i+1; } } else { if(q[i]<q[i+1]) { t[i]=0,f[i]=i; } else { t[i]=1,f[i]=i+1; } } } cout<<t[1]<<endl; }
Submission Info
Submission Time | |
---|---|
Task | F - Strange Sorting |
User | kotatsugame |
Language | C++14 (GCC 5.4.1) |
Score | 2400 |
Code Size | 589 Byte |
Status | AC |
Exec Time | 80 ms |
Memory | 3968 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 2400 / 2400 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 78 ms | 3840 KB |
in10.txt | AC | 79 ms | 3840 KB |
in11.txt | AC | 78 ms | 3840 KB |
in12.txt | AC | 79 ms | 3840 KB |
in13.txt | AC | 78 ms | 3840 KB |
in14.txt | AC | 79 ms | 3840 KB |
in15.txt | AC | 78 ms | 3840 KB |
in16.txt | AC | 79 ms | 3840 KB |
in17.txt | AC | 78 ms | 3840 KB |
in18.txt | AC | 79 ms | 3840 KB |
in19.txt | AC | 78 ms | 3840 KB |
in2.txt | AC | 79 ms | 3840 KB |
in20.txt | AC | 78 ms | 3840 KB |
in21.txt | AC | 78 ms | 3840 KB |
in22.txt | AC | 76 ms | 3840 KB |
in23.txt | AC | 2 ms | 2304 KB |
in3.txt | AC | 79 ms | 3840 KB |
in4.txt | AC | 80 ms | 3968 KB |
in5.txt | AC | 78 ms | 3840 KB |
in6.txt | AC | 79 ms | 3840 KB |
in7.txt | AC | 78 ms | 3840 KB |
in8.txt | AC | 79 ms | 3840 KB |
in9.txt | AC | 78 ms | 3840 KB |
sample1.txt | AC | 2 ms | 2304 KB |
sample2.txt | AC | 2 ms | 2304 KB |
sample3.txt | AC | 2 ms | 2304 KB |