13-froglike6

froglike6/README.md

@@ -14,4 +14,5 @@
  | 10차시 | 2025.05.08 | 이분탐색 | [게임](https://www.acmicpc.net/problem/1072)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/42|
  | 11차시 | 2025.05.08 | 조합론 | [High Towers](https://www.acmicpc.net/problem/33785)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/43|
  | 12차시 | 2025.05.11 | 자료 구조 | [AC](https://www.acmicpc.net/problem/5430)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/46|
+ | 13차시 | 2025.05.13 | 백트래킹 | [치킨 배달](https://www.acmicpc.net/problem/15686)|https://github.com/AlgoLeadMe/AlgoLeadMe-13/pull/47|
  ---

froglike6/backtracking/15686.py

@@ -0,0 +1,26 @@
+import sys
+from itertools import combinations
+input = sys.stdin.readline
+
+N, M = map(int, input().split())
+houses = []
+chickens = []
+for r in range(N):
+    row = list(map(int, input().split()))
+    for i, v in enumerate(row):
+        if v == 1:
+            houses.append((r, i))
+        elif v == 2:
+            chickens.append((r, i)) 
+
+min_city_dist = float('inf')
+for comb in combinations(chickens, M):
+    city_dist = 0
+    for hr, hc in houses:
+        dist = min(abs(hr-cr) + abs(hc-cc) for cr, cc in comb)
+        city_dist += dist
+        if city_dist >= min_city_dist:
+            break
+    min_city_dist = min(min_city_dist, city_dist)
+
+print(min_city_dist)