大一，啥都不懂，救命

Question

救救我，

Answer 1

转换成字符串，然后读取字符串长度，逆序输出就行了，属于入门的了

#include<stdio.h>
#include<string.h>
int main(){
    int num,len,i;
    char char_num[100]="\0";
    scanf("%d",&num);
    if(num<0||num>=100000) { 
        printf("overflow\n");
    }else{
        sprintf(char_num,"%d",num);
        len=strlen(char_num);
        i=0;
        for(i=len-1;i>=0;i--){
            printf("%c",char_num[i]);
        }
    }
}