Submission #16342

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
16342	2015-08-21 14:11:42	atomzeno	Gondola (IOI14_gondola)	C++98	20 / 100	15 ms	4208 KiB

gondola

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#include "gondola.h"
int d[200001],check[250001];
int valid(int n, int inputSeq[]){
    int i,cnt=0,ind;
    for(i=0;i<n;i++){
        if(inputSeq[i]<=n){
            cnt=1;
            ind=(inputSeq[i]-1-i)+n;
            ind%=n;
            break;
        }
    }
    for(i=0;i<n;i++){
        check[inputSeq[i]]++;
        if(check[inputSeq[i]]>=2){return 0;}
    }
    if(cnt==0){return 1;}
    for(i=0;i<n;i++){
        d[(ind+i)%n]=inputSeq[i];
    }
    for(i=0;i<n;i++){
        if(d[i]<=n&&d[i]!=(i+1)){
            return 0;
        }
    }
    return 1;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    return -2;
}
 
 
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