蓝桥杯算法提高VIP-交换Easy

参考代码:

n, m = map(int, input().split())
ls = list(map(int, input().split()))

for i in range(m):
   a, b = map(int, input().split())
   temp = ls[a-1]
   ls[a-1] = ls[b-1]
   ls[b-1] = temp

for i in range(len(ls)):
   print(ls[i])