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C语言合法标识符

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 155536    Accepted Submission(s): 58306


Problem Description
输入一个字符串,判断其是否是C的合法标识符。
 

Input
输入数据包含多个测试实例,数据的第一行是一个整数n,表示测试实例的个数,然后是n行输入数据,每行是一个长度不超过50的字符串。
 

Output
对于每组输入数据,输出一行。如果输入数据是C的合法标识符,则输出"yes",否则,输出“no”。
 

Sample Input
3 12ajf fi8x_a ff ai_2
 

Sample Output
no yes no
 

Author
lcy
 

Source
 

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