Question

函数fun的功能是：将形参n所指变量中，各位上为偶数的数去除,并按原来从高位到低位的顺序组成一个数.

#include "stdio.h"
unsigned long fun(unsigned long n)
{
unsigned long x=10;
while(n)
{
int t;
/*****found*****/
if(t%2==[1])
/*****found*****/
x=[2]+t;
/*****found*****/
n=[3];
}
return x;
}
void main()
{
unsigned long n=-1;
while(n>99999999||n<0)
{
printf("输入值\n");
scanf("%ld",&n);
}
printf("\nthe resulf is:%ld\n",fun(n));
}

Answer 1

int fun(int n){
int d,e=1,m=0;
while(n!=0){
d=n%10;
if(d%2==1){
m=d*e+m;
e=e*10;
}
n=n/10;
}
return m;
}