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  1. Prepare
  2. Python
  3. Built-Ins
  4. Athlete Sort
  5. Discussions

Athlete Sort

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recency

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536 Discussions

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  • hulusio
     + 0 comments

    I tried without lambda 

    #!/bin/python3

import math
import os
import random
import re
import sys
def change_all_attr(lst, src, dst):
    tmp =0
    tmp = lst[dst]
    lst[dst] = lst[src]
    lst[src] = tmp

if __name__ == '__main__':
    nm = input().split()

    n = int(nm[0])

    m = int(nm[1])

    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input())
    lst_table = list(zip(*arr))
    #print(lst_table)
    tmp =0
    for t in range(m):
        lst_table[t] = list(lst_table[t])

    change = False
    for i in range(len(lst_table[k]) - 1):
        for j in range(len(lst_table[k]) - 1):
            if lst_table[k][j] > lst_table[k][j+1]:
                for t in range(m):
                    change_all_attr(lst_table[t],j,j+1)
                change = True
        if not change:
            break
        
    #print(lst_table)
    lst_table = list(zip(*lst_table))
    #print(lst_table)
    for t in lst_table:
        for p in range(len(t)):
            print("%d"%(t[p]),end= " ")
        print()

  • dilajevolves
     + 0 comments
    #!/bin/python3

import math
import os
import random
import re
import sys



if __name__ == '__main__':
    n,m = map(int,input().split())
    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input())
    for info in sorted(arr,key = lambda x : x[k]):
        print(*info)

  • dilajevolves
     + 0 comments

    if name == 'main': n,m = map(int,input().split()) arr = []

    for _ in range(n):
    arr.append(list(map(int, input().rstrip().split())))

k = int(input())
for info in sorted(arr,key = lambda x : x[k]):
    print(*info)

    `

  • k_santoshreddy21
     + 0 comments

    if name == 'main':

    n, m = map(int, input().split())
arr = [list(map(int, input().split())) for _ in range(n)]
k = int(input())

arr.sort(key = lambda x : x[k])
print("\n".join([" ".join(map(str, i)) for i in arr]))

    `

  • maxence_qnt
     + 0 comments

    I am learning lambda expression... This is very powerful. I start to understand the logic that we can sort a list depending of one of his attribute, but we have to give the index of this attribute into the lambda expression. Here my code :

    import math
import os
import random
import re
import sys



if __name__ == '__main__':
    first_multiple_input = input().rstrip().split()

    n = int(first_multiple_input[0])

    m = int(first_multiple_input[1])

    arr = []

    for _ in range(n):
        arr.append(list(map(int, input().rstrip().split())))

    k = int(input().strip())
    
    # With lambda, we can sort depending of one attribute. If I add "-" I have descending order. Here we want ascending order.
    key = lambda item: (item[k])
    #print(sorted(arr, key=key))
    arr = sorted(arr, key=key)
    
    for sublist in arr:
        print(' '.join(map(str, sublist)))