create dev channel

zeta/py/completed/16508.py

@@ -0,0 +1,43 @@
+import sys
+
+input = sys.stdin.readline
+
+INF_MAX = 1000000 * 50
+
+
+def transpose(word: str):
+    dictionary = [0] * 26
+    for c in word:
+        dictionary[ord(c) - 65] += 1
+    return dictionary
+
+
+def check(T: list, word: list):
+    return all([word[i] >= T[i] for i in range(26)])
+
+
+def merge(a: list, b: list):
+    return [a[i] + b[i] for i in range(26)]
+
+
+if __name__ == "__main__":
+    T = transpose(input().rstrip())
+    N = int(input())
+    P = [
+        (int(c), transpose(w)) for c, w in (input().rstrip().split() for _ in range(N))
+    ]
+    D = []
+    min_price = INF_MAX
+
+    D.append((0, 0, [0] * 26))
+    while D:
+        index, cost, word = D.pop()
+        word: list
+        if index >= N:
+            if check(T, word):
+                min_price = min(min_price, cost)
+            continue
+        else:
+            D.append((index + 1, cost + P[index][0], merge(word, P[index][1])))
+            D.append((index + 1, cost, word.copy()))
+    print(min_price) if min_price < INF_MAX else print(-1)