[BOJ] 29736 브실이와 친구가 되고 싶어 (B4)

Author: abcxj123

정건우/3주차/260116.java

@@ -0,0 +1,25 @@
+//https://www.acmicpc.net/problem/29736
+import java.util.Scanner;
+
+public class BOJ_B4_29736_브실이와친구가되고싶어 {
+
+	public static void main(String[] args) {
+		Scanner scann = new Scanner(System.in);
+		
+		int A = scann.nextInt();
+		int B = scann.nextInt();
+		
+		int K = scann.nextInt();
+		int X = scann.nextInt();
+		
+		int min = Math.max(A, K-X);
+		int max = Math.min(B, K+X);
+		
+		int diff = max-min+1;
+		
+		if(diff > 0) System.out.println(diff);
+		else System.out.println("IMPOSSIBLE");
+
+	}
+
+}