2024-07-12

tgyuuAn/README.md

@@ -67,4 +67,5 @@
 | 60차시 | 2024.06.07 |  그리디  | <a href="https://www.acmicpc.net/problem/14939">불 끄기</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/209
 | 61차시 | 2024.06.20 |  크루스칼  | <a href="https://www.acmicpc.net/problem/1774">우주신과의 교감</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/212
 | 62차시 | 2024.07.01 |  DP  | <a href="https://www.acmicpc.net/problem/1949">우수 마을</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/214
+| 64차시 | 2024.07.12 |  최소 공통 조상  | <a href="https://www.acmicpc.net/problem/11812">K진 트리</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/217
 ---

tgyuuAn/최소 공통 조상/K진 트리.py

@@ -0,0 +1,24 @@
+import sys
+
+def input(): return sys.stdin.readline().rstrip()
+
+N, K, Q = map(int,input().split())
+
+for _ in range(Q):
+    start, dest = map(int, input().split())
+    answer = 0
+
+    if K == 1:
+        print(abs(start - dest))
+        continue
+
+    while start != dest:
+        if start > dest:
+            start = (start-2)//K+1
+            answer += 1
+
+        if dest > start:
+            dest = (dest-2)//K+1
+            answer += 1
+
+    print(answer)