Palindromi

#include <bits/stdc++.h>

using namespace std;

int main() {
    string abc = "abcdefghijklmnopqrstuvwyxz";
    int n;
    int k;
    cin >> n >> k;

    int o = 0;
    int c = 0;
    while (true) {
        for (int i = 0; i < k; i++) {
            cout << abc[(min(i, k - i - 1) + o) % abc.length()];
            c++;
            if (c == n) {
                cout << "\n";
                return 0;
            }
        }
        o += 1;
    }

}

// g++ --std=c++11 -O2 -Wall test.cpp -o test && ./test

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED

Test 17

Verdict: ACCEPTED