Submission #1288688
Source Code Expand
//by xiqiao #include<bits/stdc++.h> #define maxn 200005 using namespace std; typedef long long ll; int q[maxn],t[maxn],f[maxn]; int n; bool check(int x,int y,int z){ if(x<y && y<z)return 1; if(y<z && z<x)return 1; if(z<x && x<y)return 1; return 0; } int main(){ scanf("%d",&n); for(int i=1;i<=n;i++){ int x;scanf("%d",&x);q[x]=i; } for(int i=n-1;i;i--){ if(t[i+1]==0){ if(q[i]>q[i+1]){ t[i]=1;f[i]=i+1; } } else if(check(q[f[i+1]],q[i],q[i+1])){ t[i]=t[i+1];f[i]=f[i+1]; } else { t[i]=t[i+1]+1;f[i]=i+1; } } printf("%d\n",t[1]); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Strange Sorting |
User | xiqiao |
Language | C++14 (GCC 5.4.1) |
Score | 2400 |
Code Size | 614 Byte |
Status | AC |
Exec Time | 24 ms |
Memory | 2688 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:15:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:17:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int x;scanf("%d",&x);q[x]=i; ^
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 | 24 ms | 2560 KB |
in10.txt | AC | 24 ms | 2560 KB |
in11.txt | AC | 24 ms | 2560 KB |
in12.txt | AC | 24 ms | 2560 KB |
in13.txt | AC | 24 ms | 2560 KB |
in14.txt | AC | 24 ms | 2560 KB |
in15.txt | AC | 24 ms | 2560 KB |
in16.txt | AC | 24 ms | 2560 KB |
in17.txt | AC | 24 ms | 2560 KB |
in18.txt | AC | 24 ms | 2560 KB |
in19.txt | AC | 24 ms | 2560 KB |
in2.txt | AC | 24 ms | 2560 KB |
in20.txt | AC | 24 ms | 2688 KB |
in21.txt | AC | 20 ms | 1024 KB |
in22.txt | AC | 21 ms | 2560 KB |
in23.txt | AC | 1 ms | 256 KB |
in3.txt | AC | 24 ms | 2560 KB |
in4.txt | AC | 24 ms | 2560 KB |
in5.txt | AC | 24 ms | 2560 KB |
in6.txt | AC | 24 ms | 2560 KB |
in7.txt | AC | 24 ms | 2560 KB |
in8.txt | AC | 24 ms | 2560 KB |
in9.txt | AC | 24 ms | 2560 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |