Merge pull request #36 from AlgoLeadMe/8-wkdghdwns199

8-wkdghdwns199

wkdghdwns199/README.md

@@ -10,3 +10,5 @@
 | 6차시 | 2024.02.16 |  약수, 배수와 소수 |  <a href="https://www.acmicpc.net/problem/13909">창문 닫기</a>  | <a href="">2024.02.16</a> |
 | 7차시 | 2024.02.20 |  스택,큐,덱 |  <a href="https://www.acmicpc.net/problem/24511">queuestack</a>  | <a href="">2024.02.16</a> |
 
+| 8차시 | 2024.02.16 |  스택, 큐, 덱 |  <a href="https://www.acmicpc.net/problem/12789">도키도키 간식드리미</a>  | <a href="">2024.02.16</a> |
+

wkdghdwns199/스텍_큐_덱/ACM-12789.py

@@ -0,0 +1,23 @@
+N = int(input())
+order_list = list(map(int, input().split()))
+order = 1
+stack = []
+
+# 5 4 2 3 1
+
+while order_list :
+    if order_list[0] == order:
+        order_list.pop(0)
+        order+=1
+    else :
+        stack.append(order_list.pop(0))
+
+    while stack :
+        if stack[-1] == order:
+            stack.pop()
+            order +=1
+        else :
+            break
+
+
+print('Nice') if len(stack)==0 else print('Sad')