生成阿姆斯特朗數到第n個數字在C不工作

Question

我想生成阿姆斯特朗數到第n個數字。所以，我已經寫了一個代碼，但它不工作。每當我輸入數字如999或10000，它僅返回0 ....誰能幫我找出什麼是錯，此代碼：

#include <stdio.h> 
#include <math.h> 
int main() 
{ 
    double remainder,n=0; 
    int number,sum = 0,q,x,count; 

    printf("Enter an integer upto which you want to find armstrong numbers:"); 
    scanf("%d",&number); 
    printf("\nFollowing armstrong numbers are found from 1 to %d\n",number); 

    for(count = 1 ; count <= number ; count++) 
    { 
     q = count; 
     x = count; 
     for(;x != 0;) 
     { 
      x =x/10; 
      n = n + 1; 
     } 
     while(q != 0) 
     { 
      remainder = q % 10; 
      sum = sum +(pow(remainder,n)); 
      q = q/10; 
     } 
     if (count == sum){ 
     printf("%d\n", count); 
     } 
     sum = 0; 
     } 

    return 0; 
} 

Answer 1

你必須初始化n零環路內的count。並通過例如將0.5添加到pow來妥善舍入結果。