제출 #60486

#제출 시각아이디문제언어결과실행 시간메모리
60486hamzqq9곤돌라 (IOI14_gondola)C++14
10 / 100
26 ms2000 KiB
#include "gondola.h"


int valid(int n, int inputSeq[]) {

	int fr[250001]={0};

	int fixed=-1;

	for(int i=0;i<n;i++) {

		if(inputSeq[i]<=n) {

			fixed=i;

			break ;

		}

	}

	if(fixed==-1) return 1;

	int tot=2,big=0;

	int cur=inputSeq[fixed];

	for(int i=fixed;(tot-=(i==fixed));i=(i+1)%n,cur++) {

		if(cur>n) cur-=n;

		if(inputSeq[i]>n) {
		
			fr[inputSeq[i]]++;

			big++;

			continue ;
		
		}

		if(inputSeq[i]!=cur) return 0;

	}

	for(int i=n+1;i<=n+big;i++) {

		if(fr[i]!=1) return 0; 

	}

	return 1;

}

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

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

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

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