complete at jungol 1077.py 3135.py 14020.py 3006.rs

storage/jungol/py/completed/14020.py

@@ -0,0 +1,36 @@
+import sys
+
+input = sys.stdin.readline
+
+
+if __name__ == "__main__":
+    n, q = map(int, input().split())
+    prices = list(map(int, input().split()))
+
+    if n <= 3:
+        s = sum(prices)
+        r1 = (100 - q) * s // 100
+        r2 = s - min(prices)
+        print(int(min(r1, r2)))
+    elif q == 0:
+        prices.sort()
+        s = 0
+        while len(prices) >= 3:
+            s += prices.pop()
+            s += prices.pop()
+            prices.pop()
+        s += sum(prices)
+        print(s)
+    elif q >= 34:
+        print(sum(prices) * (100 - q) // 100)
+    else:
+        prices.sort(reverse=True)
+        dp = [0] * (n + 1)
+
+        for i in range(1, n + 1):
+            dp[i] = dp[i - 1] + prices[i - 1] * (100 - q) // 100
+            g = 0
+            if i >= 3:
+                g = prices[i - 3] + prices[i - 2]
+                dp[i] = min(dp[i], dp[i - 3] + g)
+        print(dp[n])