TopCoder High School SRM 20 Level one - 250 pt - Surname solution

TopCoder High School SRM 20 Level one - 250 pt - Surname statement: http://community.topcoder.com/stat?c=problem_statement&pm=6873&rd=10072

TopCoder High School SRM 20 Level one - 250 pt - Surname editorial: http://community.topcoder.com/tc?module=Static&d1=hs&d2=match_editorials&d3=hs_srm20

TopCoder High School SRM 20 Level one - 250 pt - Surname solution: 

#include <iostream>
#include <vector>
using namespace std;

class Surname {
    public: int bestSurname(vector <string> s) {
        int a[15]={0}, ma=0, idx=0;
        for(int i=0; i<s.size(); i++) {
            for(int j=0; j<s[i].length(); j++) {
                a[i]+=s[i][j];
            }
        }
        for(int i=0; i<s.size(); i++) if(a[i]>ma) ma=a[i], idx=i;
        return idx;
    }
};