6. calculation index

Power index

The base number is x, The power exponent is a, Calculated x Of a Power ：

pow(x,a)

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
    int n;
    scanf("%d",&n);
    int b=pow(2,n);
    printf("2^%d = %d",n,b);
    return 0;
}