[백준] 11650: 좌표 정렬하기

11650번: 좌표 정렬하기

 

 

import sys
def solution():
    n = int(sys.stdin.readline().strip())
    answer = []
    for _ in range(n):
        x, y = map(int, sys.stdin.readline().split())
        answer.append((x, y))
    answer.sort(key=lambda x : (x[0], x[1]))
    for a, b in answer:
        print(a, b)
solution()