Submission #1339129
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define FOR(i,a,b) for (int i=(a);i<(b);i++) #define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--) #define REP(i,n) for (int i=0;i<(n);i++) #define RREP(i,n) for (int i=(n)-1;i>=0;i--) typedef long long LL; using namespace std; #define FOR(i,a,b) for (int i=(a);i<(b);i++) #define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--) #define REP(i,n) for (int i=0;i<(n);i++) #define RREP(i,n) for (int i=(n)-1;i>=0;i--) typedef long long LL; int M; int p[200001]; int now[200001]; int T[200001]; int f[200001]; int main(){ cin>>M; REP(i,M){ cin>>p[i]; now[p[i]]=i; } T[M]=0; for(int i=M-1;i>=1;i--){ if(T[i+1]==0){ //cout<<i+1<<"aa "<<i<<endl; if(now[i+1]<now[i]){ T[i]=1; f[i]=i+1; }else{ T[i]=0; f[i]=i; } }else{ //cout<<now[f[i+1]]<<" "<<now[i]<<" "<<now[i+1]<<endl; if((now[f[i+1]]<now[i]&&now[i]<now[i+1])|| (now[i]<now[i+1]&&now[i+1]<now[f[i+1]])|| (now[i+1]<now[f[i+1]]&&now[f[i+1]]<now[i])){ T[i]=T[i+1]; f[i]=f[i+1]; }else{ T[i]=T[i+1]+1; if(now[i]<now[i+1]){ f[i]=i+1; }else{ f[i]=i+1; } } } //cout<<now[f[i]]<<now[f[i+1]]<<endl; } cout<<T[1]<<endl; return(0); }
Submission Info
Submission Time | |
---|---|
Task | F - Strange Sorting |
User | rapurasu |
Language | C++14 (GCC 5.4.1) |
Score | 2400 |
Code Size | 1545 Byte |
Status | AC |
Exec Time | 85 ms |
Memory | 3328 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 | 80 ms | 3328 KB |
in10.txt | AC | 78 ms | 3328 KB |
in11.txt | AC | 80 ms | 3328 KB |
in12.txt | AC | 78 ms | 3328 KB |
in13.txt | AC | 79 ms | 3328 KB |
in14.txt | AC | 78 ms | 3328 KB |
in15.txt | AC | 80 ms | 3328 KB |
in16.txt | AC | 78 ms | 3328 KB |
in17.txt | AC | 80 ms | 3328 KB |
in18.txt | AC | 78 ms | 3328 KB |
in19.txt | AC | 79 ms | 3328 KB |
in2.txt | AC | 78 ms | 3328 KB |
in20.txt | AC | 80 ms | 3328 KB |
in21.txt | AC | 77 ms | 3328 KB |
in22.txt | AC | 78 ms | 3328 KB |
in23.txt | AC | 1 ms | 256 KB |
in3.txt | AC | 85 ms | 3328 KB |
in4.txt | AC | 79 ms | 3328 KB |
in5.txt | AC | 78 ms | 3328 KB |
in6.txt | AC | 80 ms | 3328 KB |
in7.txt | AC | 78 ms | 3328 KB |
in8.txt | AC | 80 ms | 3328 KB |
in9.txt | AC | 78 ms | 3328 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |