Merge pull request #799 from AlgorithmWithGod/JHLEE325

[20250902] BOJ / G5 / 전깃줄 / 이준희

Author: ShinHeeEul

JHLEE325/202509/02 BOJ G5 전깃줄.md

@@ -0,0 +1,45 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st;
+
+        int n = Integer.parseInt(br.readLine());
+        int[][] elec = new int[n][2];
+        int[] dp = new int[n];
+
+        for(int i=0;i<n;i++){
+            st = new StringTokenizer(br.readLine());
+            elec[i][0]= Integer.parseInt(st.nextToken());
+            elec[i][1] = Integer.parseInt(st.nextToken());
+        }
+
+        Arrays.sort(elec,(o1,o2)->{
+            return o1[0]-o2[0];
+        });
+
+        for(int i=0;i<n;i++){
+            dp[i]=1;
+
+            for(int j=0;j<i;j++){
+                if(elec[i][1]>elec[j][1]){
+                    dp[i] = Math.max(dp[i],dp[j]+1);
+                }
+            }
+        }
+
+        int result = 0;
+        for(int i=0;i<n;i++){
+            if(result<dp[i]){
+                result=dp[i];
+            }
+        }
+
+        System.out.println(n-result);
+    }
+}
+
+```