HDU 1282 回文数猜想

不用单独把回文写成一个函数，只用写置反的函数，置反之后的结果是否与原来相同即可判断回文数，格式控制的需要注意下

#include<stdio.h>#include<string.h>int reverse(int num) {    int a, sum = 0;    while (num > 0) {        a = num % 10;        sum = sum * 10 + a;        num /= 10;    }    return sum;}int main(void){    int num, count, sum, flag, cup[1000];    while (scanf("%d", &num) != EOF) {        count = 0;        flag = 1;        memset(cup, 0, sizeof(cup));        sum = num;        while (1) {            if (reverse(sum) == sum) {                printf("%d\n", count);                printf("%d", flag?num:num-1);                flag = 0;                for (int i = 0; i < count; i++) {                    printf("--->%d", cup[i]);                }                putchar('\n');                break;            } else {                sum += reverse(sum);                cup[count++] = sum;            }        }    }    return 0;}