From 7fef774fc4bf19b7bbc784c363d0a432b0eac9ae Mon Sep 17 00:00:00 2001 From: LiiNi-coder <97495437+LiiNi-coder@users.noreply.github.com> Date: Thu, 6 Nov 2025 23:54:03 +0900 Subject: [PATCH] =?UTF-8?q?[20251106]=20PGM=20/=20LV2=20/=20=EB=A1=A4=20?= =?UTF-8?q?=EC=BC=80=EC=9D=B4=ED=81=AC=20=EC=9E=90=EB=A5=B4=EA=B8=B0=20/?= =?UTF-8?q?=20=EC=9D=B4=EC=9D=B8=ED=9D=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...4 \354\236\220\353\245\264\352\270\260.md" | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 "LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md" diff --git "a/LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md" "b/LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md" new file mode 100644 index 00000000..9d438a39 --- /dev/null +++ "b/LiiNi-coder/202511/06 PGM \353\241\244\354\274\200\354\235\264\355\201\254 \354\236\220\353\245\264\352\270\260.md" @@ -0,0 +1,30 @@ +```java +import java.util.*; + +class Solution { + public int solution(int[] toppings) { + int answer=0; + HashMap r = new HashMap<>(); + for(int topping: toppings){ + if(!r.containsKey(topping)){ + r.put(topping, 0); + } + r.put(topping, r.get(topping)+1); + } + HashMap l = new HashMap<>(); + for(int topping: toppings){ + if(!l.containsKey(topping)){ + l.put(topping, 0); + } + l.put(topping, l.get(topping)+1); + r.put(topping, r.get(topping)-1); + if(r.get(topping) == 0) + r.remove(topping); + if(l.size() == r.size()) + answer++; + } + return answer; + } + +} +```