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1156: 交换值
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:24
Solved:14
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Description
输入整数a,b,将a和b中的值交换并输出
Input
一行两个数a和b
Output
两个数交换后的a和b
Sample Input
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15 20
Sample Output
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20 15
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