Update README.md

Author: techbless

README.md

@@ -25,7 +25,7 @@
 | 이중 우선순위 큐 | 🟩 | 자료구조(MULTI SET) | [C++](https://github.com/techbless/algorithm-playground/blob/master/challenges/BOJ7662.md) | [문제](https://www.acmicpc.net/problem/7662) |
 | 1로 만들기 | 🟩 | 다이나믹 프로그래밍 | [C++](https://github.com/techbless/algorithm-playground/blob/master/challenges/BOJ1463.md) | [문제](https://www.acmicpc.net/problem/1463) |
 | 맥주마시면서 걸어가기 | 🟨 | 그래프 이론 | [C++](https://github.com/techbless/algorithm-playground/blob/master/challenges/BOJ9205.md) | [문제](https://www.acmicpc.net/problem/9205) |
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+| 적록색약 | 🟩 | 깊이우선 탐색 | [C++](https://github.com/techbless/algorithm-playground/blob/master/challenges/BOJ10026.md) | [문제](https://www.acmicpc.net/problem/10026) |
 ## 자료구조 & 알고리즘
 
 | 이름 | 소스 코드 |