create dev channel

zeta/py/completed/2294.py

@@ -0,0 +1,38 @@
+import sys
+import os
+import io
+
+sys.setrecursionlimit(10001)
+input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline
+
+
+P: list
+N: int
+K: int
+Mem: list
+
+
+def get_possible(C):
+    if Mem[C] != -1:
+        return Mem[C]
+    m = float("inf")
+    for p in P:
+        if C - p > 0:
+            m = min([get_possible(C - p) + 1, m])
+        elif C == p:
+            m = 1
+        elif C - p < 0:
+            continue
+    Mem[C] = m
+    return m
+
+
+if __name__ == "__main__":
+    N, K = map(int, input().split())
+    P = [int(input()) for _ in range(N)]
+    Mem = [-1] * (K + 1)
+    ret = get_possible(K)
+    if ret is float("inf"):
+        print(-1)
+    else:
+        print(ret)