C语言-判断回文数字

Posted 2022-12-14 灯火阑处

有这样一类数字，它们顺着看和倒着看都是相同的数，例如121、656、12321。编写判断从键盘接收的数字是否为回文数字

int reverse(int i) 
    int m, j = 0;
    m = i;
    while (m) 
        j = j * 10 + m % 10;
        m = m / 10;
    
    return j;

int isCircle(int n) 
    int m;
    m = reverse(n);
    if (m == n)
        return 1;
    else
        return 0;

int main(int argc, const char *argv[]) 
 int n;
    printf("Type a integer for judging is Circle :\\n");
    scanf("%d", &n);
    if (isCircle(n))
        printf("%d is Cirle\\n", n);
    else
        printf("%d is not Cirle\\n", n);

  return 0;

结果：