Picking Numbers

 Question :-

https://www.hackerrank.com/challenges/picking-numbers/problem

Solution in C language :-

#include<stdio.h>
int main(){
    int n;
    scanf("%d",&n);
    int a[n],i,j;
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }

    int t=0;
    for(i=0;i<n;i++){
        int c=0;
        for(j=0;j<n;j++){
            if(a[i]==a[j] || a[i]==a[j]+1){
                c++;
            }
        }
        if(c>t)
            t=c;
    }

    printf("%d",t);
    return 0;
}

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