[백준 1727] 커플 만들기 - DP, 그리디

Author: HiiWee

hoseok/week79/Boj1727.java

@@ -0,0 +1,46 @@
+import java.io.*;
+import java.util.*;
+
+class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int n = Integer.parseInt(st.nextToken());
+        int m = Integer.parseInt(st.nextToken());
+        int[] man = new int[n];
+        int[] woman = new int[m];
+
+        st = new StringTokenizer(br.readLine());
+        for (int i = 0; i < n; i++) {
+            man[i] = Integer.parseInt(st.nextToken());
+        }
+
+        st = new StringTokenizer(br.readLine());
+        for (int i = 0; i < m; i++) {
+            woman[i] = Integer.parseInt(st.nextToken());
+        }
+
+        Arrays.sort(man);
+        Arrays.sort(woman);
+
+        int[][] dp = new int[n + 1][m + 1];
+
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < m; j++) {
+                if (i == j) {
+                    dp[i + 1][j + 1] = Math.abs(man[i] - woman[j]) + dp[i][j];
+                } else if (i < j) {
+                    dp[i + 1][j + 1] = Math.min(dp[i + 1][j], dp[i][j] + Math.abs(man[i] - woman[j]));
+                } else {
+                    dp[i + 1][j + 1] = Math.min(dp[i][j + 1], dp[i][j] + Math.abs(man[i] - woman[j]));
+                }
+            }
+        }
+
+
+        bw.write(Integer.toString(dp[n][m]));
+        bw.flush();
+        bw.close();
+    }
+}