SRM526 Div2 Easy(250) CheatingQuiz

CheatingQuiz

#include <string>
#include <set>
#include <vector>
using namespace std;

class CheatingQuiz{public:
vector <int> howMany( string answers )
{
    vector<int> ans;
    for ( int i=0; i<(int)answers.length(); i++ )
        ans.push_back(set<char>(answers.begin()+i,answers.end()).size());
    return ans;
}};