Submission #12695

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
12695	2014-12-31 10:46:24	qja0950	Gondola (IOI14_gondola)	C++98	10 / 100	12 ms	3432 KiB

gondola

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#include "gondola.h"
int CheckV[250052];
int valid(int n, int inputSeq[])
{
    int first = -1;
    for(int i=0; i<n; i++) {
        int now = inputSeq[i];
        if(now > n) continue;
        first = i;
        break;
    }
    if(first == -1) return 1;
    
    for(int i=0; i<n; i++) {
        int now = inputSeq[i];
        CheckV[now]++;
        if(CheckV[now] > 1) return 0;
    }
    
    for(int i=0; i<n; i++) {
        int index = (first + i) % n;
        int value = (inputSeq[first] + i - 1) % n + 1;
        
        int now = inputSeq[index];
        if(now > n) continue;
        if(now != value) return 0;
    }
 
 
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