20161010_b.cpp

#include <bits/stdc++.h>
using namespace std;
using ull = unsigned long long;
using ll = long long;
using vi = vector<int>;
using vl = vector<long>;
using vll = vector<long long>;
using vvi = vector<vi>;
using vvl = vector<vl>;
using vvll = vector<vll>;
using vs = vector<string>;
using pii = pair<int, int>;
#define REP(i,n) for(int i=0; i<(n); i++)
#define REP2(i,x,n) for(int i=x; i<(n); i++)
#define ALL(n) begin(n),end(n)
#define PRINT(n) cout << n << endl;
struct cww{cww(){ios::sync_with_stdio(false);cin.tie(0);}}star;
const long long INF = numeric_limits<long long>::max();
int main()
{
    int n, A, B;
    cin >> n >> A >> B;
    string s;
    cin >> s;

    int count= 0, rank=1;

    REP(i, n){
        if(s.at(i)=='a' && count < A+B){
            PRINT("Yes")
            count++;
        }else if(s.at(i)=='b' && count < A+B && rank<=B){
            PRINT("Yes")
            rank++;
            count++;
        }else{
            PRINT("No")
        }
    }

    return 0;
}