이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
set<int> st;
int valid(int n, int inputSeq[]){
int s = -1;
for(int i=0; i<n; i++){
if(st.find(inputSeq[i])!=st.end()) return false;
st.insert(inputSeq[i]);
}
for(int i=0; i<n; i++){
if(inputSeq[i]<=n){
s = i; break;
}
}
if(s==-1) return 1;
int idx = s, now = inputSeq[idx];
bool tf = true;
while(1){
if(inputSeq[idx]<=n && inputSeq[idx]!=now){
tf = false;
break;
}
if(idx==(s+n-2)%n+1) break;
now = now%n+1; idx = idx%n+1;
}
if(tf) return 1;
tf = true;
idx = s; now = inputSeq[idx];
while(1){
if(inputSeq[idx]<=n &&inputSeq[idx]!=now){
tf = false;
break;
}
if(idx==s%n+1) break;
idx = (idx+n-2)%n+1; now = (now+n-2)%n+1;
}
if(tf) return 1;
return 0;
}
//----------------------
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
return -2;
}
//----------------------
int countReplacement(int n, int inputSeq[])
{
return -3;
}
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