[20250206] BOJ / 골드3 / 같이 눈사람 만들래? / 김수연

suyeun84/202502/06 BOJ G3 같이 눈사람 만들래?.md

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+```java
+import java.util.*;
+import java.io.*;
+
+class Solution
+{
+	static int N;
+	static int[] len;
+	static int answer = Integer.MAX_VALUE;
+    public static void main(String[] args) throws Exception{
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+
+	    N = Integer.parseInt(st.nextToken());
+	    len = new int[N];
+	    st = new StringTokenizer(br.readLine());
+	    for (int i = 0; i < N; i++) {
+	    	len[i] = Integer.parseInt(st.nextToken());
+	    }
+
+	    Arrays.sort(len);
+
+	    for (int i = 0; i < N; i++) {
+	    	for (int j = i+1; j < N; j++) {
+	    		calc(i, j);
+	    		if (answer == 0) {
+	    			System.out.println(0);
+	    			return;
+	    		}
+	    	}
+	    }
+	    if (answer == Integer.MAX_VALUE) System.out.println(0);
+	    else System.out.println(answer);
+    }
+
+    static void calc(int s1, int e1) {
+    	int res = len[s1] + len[e1];
+    	int start = 0;
+    	int end = N-1;
+    	while (start < end) {
+    		int cal = len[start] + len[end];
+    		if (s1 != start && e1 != end && s1 != end && e1 != start) {
+    			answer = Math.min(answer, Math.abs(res-cal));
+    		}
+    		if (res >= cal) {
+    			start += 1;
+    		} else {
+    			end -= 1;
+    		}
+    	}
+    }
+}
+
+```