单选题有如下程序:#include struct pair{ int first,second;};struct pair get_min_max(int*array, int len){ int i; struct pair res; res.first=array[0]; res.second=array[0]; for(i=1;ires.second)   res.second=array[i]; } return res;}main(){ int array[5]={9,1,3,4}; struct pair min_max = get_min_max(array,5); printf(min=%d,max=%d, min_max.first, min_max.second);}程序运行后的输出结果是(  )。Amin=1,max=9Bmin=0,max=9Cmin=1,max=4Dmin=0,max=4

单选题
有如下程序:#include struct pair{ int first,second;};struct pair get_min_max(int*array, int len){ int i; struct pair res; res.first=array[0]; res.second=array[0]; for(i=1;ires.second)   res.second=array[i]; } return res;}main(){ int array[5]={9,1,3,4}; struct pair min_max = get_min_max(array,5); printf(min=%d,max=%d, min_max.first, min_max.second);}程序运行后的输出结果是(  )。
A

min=1,max=9

B

min=0,max=9

C

min=1,max=4

D

min=0,max=4


参考解析

解析:
在对数组进行初始化时,如果在定义数组时给出了长度,但没有给所有的元素赋予初始值,那么c语言将自动对余下的元素赋初值0,则array[5] = {9,1,3,4,0}。程序的执行过程为:调用函数get_min_max(array,5),将数组array的首地址传入函数,定义结构体变量res,并为其成员赋值。for循环查找数组array的最小值0,将其赋值给res的成员first,查找数组最大值9,并将其赋值给res的成员second。最后返回结构体变量res,则min_max=res。输出min_max.first=0,min_max.second=9。答案选择B选项。

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