제출 #1304259

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1304259		mikasa	Gondola (IOI14_gondola)	C++20	0 / 100	1 ms	352 KiB

gondola

#include "gondola.h"
#include <vector> 
using namespace std;

int valid(int n, int inputSeq[])
{
    vector<int> v;
    vector<int> id(n+1,0);
    for (int i=0;i<n;++i) {
        int cur=inputSeq[i];
        if (cur>n) continue;
        v.push_back(cur);
        id[cur]=i+1;
    }   
    if (v.empty()) return 1;
    int cur=v.back(),ja=0;
    v.pop_back();
    while(!v.empty()) {
        int prev=v.back();
        int dist=id[prev]<id[cur]?id[cur]-id[prev]:id[cur]+n-id[prev];
        if (dist!=cur-prev){
            return 0;
        }
        if (id[prev]>id[cur]) ++ja;
        cur=prev;
        v.pop_back();
    }
    return ja<=1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  return -2;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

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