程序代码：

#include <stdio.h>
#include <math.h>
int main (void)
{
    int i;
    long long r;
   

    printf ("请输入一个数字:");
    scanf ("%i", &i);
    r = pow(i, 5);
    printf ("%d的五次方是%d\n", i, r);
   

    return 0;
}

程序代码：

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

int main (void)
{
    int i;
    unsigned long long int sum = 0, weight, temp;
   

    for (i = 0; i < 64; i++)
    {
        temp = pow(2, i);
        sum = sum + temp;
    }
   

    weight = sum / 25000;
   

    printf ("%llu麦子\n", sum);
    printf ("%lluKg\n", weight);
   

    return 0;
}