题目描述
输入一个整型数,判断是否是对称数,如果是,输出yes,否则输出no,不用考虑这个整型数过大,int类型存不下,不用考虑负值;
例如 12321是对称数,输出yes,124421是对称数,输出yes,1231不是对称数,输出no
题解
#include <stdio.h>
int main() {
int a, b=0, backup_a;
scanf("%d", &a);
backup_a = a;
while(a){
b = b*10 + a%10;
a /= 10;
}
if(b == backup_a){
printf("yes\n");
} else{
printf("no\n");
}
return 0;
}