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 https://www.hackerrank.com/challenges/sock-merchant/problem


int sockMerchant(int n, int ar_count, int* c) {
int count = 0;
    for(int i=0; i<n; i++){
        if(c[i]!=0){
             for(int j=i+1; j<n; j++){
                if(c[i]==c[j]){
                    count++;
                    c[j]=0;
                    break;
                    }
                }           
        }
    }
    return count;
}

 

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