Merge branch 'main' into 44-tgyuuAn

AlgoLeadMe · Mar 24, 2024 · d8db55b · d8db55b
2 parents 6af8851 + 7491076
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diff --git a/tgyuuAn/README.md b/tgyuuAn/README.md
@@ -44,5 +44,6 @@
 | 40차시 | 2023.02.21 |  DP  | <a href="https://www.acmicpc.net/problem/31413">입대</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/142
 | 41차시 | 2023.03.04 |  DP  | <a href="https://www.acmicpc.net/problem/2240">자두나무</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/148
 | 42차시 | 2023.03.07 |  DFS  | <a href="https://www.acmicpc.net/problem/2239">스도쿠</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/152
+| 43차시 | 2024.03.10 |  이분 탐색  | <a href="https://school.programmers.co.kr/learn/courses/30/lessons/64062">징검다리 건너기</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/157
 | 44차시 | 2023.03.13 |  트라이  | <a href="https://www.acmicpc.net/problem/14725">개미굴</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/159
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diff --git a/tgyuuAn/이진 탐색/배열에서 이동.py → tgyuuAn/이분 탐색/배열에서 이동.py b/tgyuuAn/이진 탐색/배열에서 이동.py → tgyuuAn/이분 탐색/배열에서 이동.py
diff --git a/tgyuuAn/이분 탐색/징검다리 건너기.py b/tgyuuAn/이분 탐색/징검다리 건너기.py
@@ -0,0 +1,25 @@
+def check(mid, stones, k):
+    gap = 0
+    for stone in stones:
+        if stone - mid < 0: gap += 1
+        else: gap = 0
+
+        if gap >= k: return False
+    return True
+
+def solution(stones, k):
+    left = -1
+    right = 200000001
+    answer = 0
+
+    while left+1<right:
+        mid = (left+right)//2
+
+        if check(mid, stones, k): # mid 명이 건널 수 있을 경우 건너는 수를 더 늘림
+            left = mid
+            answer = mid
+
+        else:
+            right = mid
+
+    return answer