c语言念数字，有同学看看哪里错了吗，把数字转化成拼音

Question

#include <stdio.h>
#include <math.h>
int main()
{
int n,x,y;
int i=0;
scanf("%d",&n);
y=n;
if(n<0){
printf("fu");
n=-n;
}
while(n>0){
n=n/10;
i++;}

while(y>0){
    x=y/pow(10,(i-1));
    
    switch(x){
        case 1:
            printf(" yi");
            break;
        case 2:
            printf(" er");
            break;
        case 3:
            printf(" san");
            break;
        case 4:
            printf(" si");
            break;
        case 5:
            printf(" wu");
            break;
        case 6:
            printf(" liu");
            break;
        case 7:
            printf(" qi");
            break;
        case 8:
            printf(" ba");
            break;
        case 9:
            printf(" jiu");
            break;
        case 0:
            printf(" ling");
            break;
    }
    i--;
    y=y/10;

}

return 0;

}

Answer 1

y=y/10; 改成 y=y-(pow(10,i)*x);