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【指针】数组逆序重新存放后并输出
2022-07-06 09:24:00 【|光|】
要求
编写程序,输入n个整数存入一维数组,再按逆序重新存放后再输出。(用指针实现)
代码
#include<stdio.h>
/* * 该函数用来输入一维整数数组,输入的数据存放在形参a数组中 * 输入的数据以0作为结束标志,0不存入数组也不计入输入数据的总数 * 返回值为输入数据的个数 */
int input(int a[])
{
int n=0;
int b = 0;
do
{
scanf("%d",&b);
if(b == 0)
break;
else
{
a[n] = b;
n++;
}
}
while(b != 0);
return n;
}
/* * 该函数用来实现计算形参数组a的逆序存放 * n为a数组中的整数个数 */
void fun(int a[],int n)
{
int b[n],c = 0;
for(int i = n-1;i>=0;i--)
{
b[c] = a[i];
c++;
}
for(int i = 0;i<n;i++)
{
a[i] = b[i];
}
}
main函数
int main()
{
int a[200],n;
n=input(a);
fun(a,n);
for(int i=0;i<n;i++)
printf("%d ",a[i]);
return 0;
}
测试
测试输入
1 3 5 7 0
输出
7 5 3 1
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