[백준 10809] 알파벳 찾기 (C++/Python)

C++)

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

int main(void) {

	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);

	int arr[26];
	fill(arr, arr + 26, -1);

	string str;
	cin >> str;

	for (int idx = 0; idx < str.length(); idx++) {
		if (arr[str.at(idx) - 'a'] == -1)
			arr[str.at(idx) - 'a'] = idx;
	}

	for (int idx = 0; idx < 26; idx++)
		cout << arr[idx] << " ";

	return 0;
}

 

 

 

Python)

import sys

read = sys.stdin.readline

temp = read().rstrip()
arr = [-1] * 26

for idx, ch in enumerate(temp):
    if arr[ord(ch)-ord('a')] == -1:
        arr[ord(ch)-ord('a')] = idx

print(' '.join(map(str, arr)))