示例 1:
输入:transactions = ["alice,20,800,mtv","alice,50,100,beijing"]
输出:["alice,20,800,mtv","alice,50,100...示例 2:
输入:transactions = ["alice,20,800,mtv","alice,50,1200,mtv"]
输出:["alice,50,1200,mtv"]
示例 3:
输入:transactions...= ["alice,20,800,mtv","bob,50,1200,mtv"]
输出:["bob,50,1200,mtv"]
提示:
transactions.length <= 1000
每笔交易