
문제

내 풀이
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Main {
public static void main(String[] args) throws IOException {
// 닭이 몇 마리인지 셀 수는 없지만? 닭의 다리는 다 셌다는?? 남욱이
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringBuilder sb = new StringBuilder();
int num = Integer.parseInt(br.readLine());
int twoLeg = 0;
int oneLeg = 0;
for (int i = 0; i < num; i++) {
StringTokenizer st = new StringTokenizer(br.readLine());
int chickenLeg = Integer.parseInt(st.nextToken());
int chicken = Integer.parseInt(st.nextToken());
oneLeg = chickenLeg - chicken;
twoLeg = chicken - oneLeg;
sb.append(twoLeg).append(" ").append(oneLeg).append("\n");
}
System.out.println(sb.toString());
}
}
느낀점