用c语言写代码判断水仙花数

Sure, I can help with that! Here is the C code to check whether a number is an Armstrong number:

#include <stdio.h>
#include <math.h>

int main() {
int num, originalNum, remainder, n = 0;
float result = 0.0;

printf("Enter an integer: ");
scanf("%d", &num);

originalNum = num;

// count the number of digits
for (originalNum = num; originalNum != 0; ++n) {
originalNum /= 10;
}

originalNum = num;

// calculate the result
while (originalNum != 0) {
remainder = originalNum % 10;
result += pow(remainder, n);
originalNum /= 10;
}

// check whether the number is an Armstrong number
if ((int)result == num) {
printf("%d is an Armstrong number.", num);
}
else {
printf("%d is not an Armstrong number.", num);
}

return 0;
}

Hope that helps!