[백준] 나이순 정렬

출처:: https://www.acmicpc.net/problem/10814

분류:: 정렬 

 

1. 문제 이해 및 해결과정

 

 

2. 풀이방법

1) class  활용

import sys
sys.stdin = open("input.txt","r")

class Member:
    def __init__(self, age: int, name: str, idx: int):
        self.age = age
        self.name = name
        self.idx = idx 

n = int(input())
members = []
for i in range(n):
    age, name = input().split()
    members.append(Member(int(age), name, i))

members.sort(key=lambda x : (x.age, x.idx))

for m in members:
    print(m.age, m.name)

2) 리스트 활용

import sys
sys.stdin = open("input.txt","r")


n = int(input())
members = []
for i in range(n):
    members.append(list(input().split()))

members.sort(key=lambda x : int(x[0]))

for m in members:
    print(m[0], m[1])

 

 

 

3. 오답원인

 

4. 알게된 점