boj 1157 - 단어 공부 : 문자열

Chuncheonian · Mar 31, 2022 · c55a14d · c55a14d
1 parent 343db4c
commit c55a14d
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/boj_01157.swift b/boj_01157.swift
@@ -0,0 +1,9 @@
+// 2022.04.01
+// Dongyoung Kwon @Chuncheonian (ehddud2468@gmail.com)
+// https://www.acmicpc.net/problem/1157
+
+let str = Dictionary(readLine()!.uppercased().map{ ($0, 1) }, uniquingKeysWith: +)
+
+var result = str.filter{ $0.value == str.values.max() }
+
+print(result.count == 1 ? result.first!.key : "?")