Submission #551625

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Source Code Expand

#include <sstream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <utility>
#include <set>
#include <list>
#include <cctype>
#include <queue>
#include <stack>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <iomanip>
#include <iterator> 

#define REP(i,n) for (int i=0;i<(n);i++)

using namespace std;

void print_pass(int N) {
    int count[N];
    string abc = "abc";
    REP(i, N) count[i] = 0;
    while (true) {
        REP(i, N) {
            cout << abc[count[N-i-1]];
        }
        cout << endl;
        count[0] += 1;
        for (int i = 1; i < N; i++) {
            if (count[i-1] == 3) {
                count[i-1] = 0;
                count[i] += 1;
            }
        }
        if (count[N-1] == 3) {
            break;
        }
    }
}

int main(int argc, char const* argv[])
{
    int N;
    cin >> N;
    print_pass(N);
    return 0;
}

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