meituan-011. 搭配出售

src/main/java/study/plan/meituan/meituan011/Solution.java

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+package study.plan.meituan.meituan011;
+
+import java.io.*;
+import java.util.StringTokenizer;
+
+class Solution {
+
+    static Scanner sc;
+    static PrintWriter pw;
+
+    public static void main(String[] args) throws IOException {
+        sc = new Scanner(System.in);
+        pw = new PrintWriter(System.out);
+        solve();
+        pw.close();
+    }
+
+    public static void solve() throws IOException {
+        int[] counts = sc.nextIntArr(4);
+        int[] prices = sc.nextIntArr(3);
+        int max = 0;
+        int min = 0;
+        for (int i = 1; i < 3; i++) {
+            if (prices[i] > prices[max]) {
+                max = i;
+            } else if (prices[i] < prices[min]) {
+                min = i;
+            }
+        }
+        int mid = 0;
+        for (int i = 0; i < 3; i++) {
+            if (i != max && i != min) {
+                mid = i;
+            }
+        }
+        int count = Math.min(counts[max], counts[3]);
+        long sum = (long) count * prices[max];
+        counts[3] -= count;
+        if (counts[3] > 0) {
+            count = Math.min(counts[mid], counts[3]);
+            sum += (long) count * prices[mid];
+        }
+        counts[3] -= count;
+        if (counts[3] > 0) {
+            count = Math.min(counts[min], counts[3]);
+            sum += (long) count * prices[min];
+        }
+        pw.println(sum);
+    }
+
+    static class Scanner {
+        BufferedReader br;
+        StringTokenizer st;
+
+        public Scanner(InputStream s) {
+            br = new BufferedReader(new InputStreamReader(s));
+        }
+
+        public Scanner(FileReader f) {
+            br = new BufferedReader(f);
+        }
+
+        public String next() throws IOException {
+            while (st == null || !st.hasMoreTokens())
+                st = new StringTokenizer(br.readLine());
+            return st.nextToken();
+        }
+
+        public int nextInt() throws IOException {
+            return Integer.parseInt(next());
+        }
+
+        public long nextLong() throws IOException {
+            return Long.parseLong(next());
+        }
+
+        public double nextDouble() throws IOException {
+            return Double.parseDouble(next());
+        }
+
+        public int[] nextIntArr(int n) throws IOException {
+            int[] arr = new int[n];
+            for (int i = 0; i < n; i++) {
+                arr[i] = Integer.parseInt(next());
+            }
+            return arr;
+        }
+
+    }
+}