[JAVA] 백준 2455번 지능형기차

import java.util.Arrays;

import java.util.Scanner;

public class Main {

private static Scanner sc = new Scanner(System.in);

public static void main(String[] args) {

int [] in = new int[4];

int [] out = new int[4];

int [] result = new int[4];

for(int i=0;i<4;i++){

out[i]=sc.nextInt();

in[i]=sc.nextInt();

}

for(int i=1;i<4;i++){

result[0] = in[0];

result[i] = result[i-1]+in[i]-out[i];

}

Arrays.sort(result);

System.out.print(result[3]);

}

}