Zhejiang University Edition "C Language Programming (3rd Edition)" Exercise 2-17

Exercise 2-17 Generate a power table of 3 (15 points)

Enter a non-negative integer n to generate a power-of-three table of 3 and output the value of 3 ~ 3 The power function can be called to calculate the power of 3.

Input format: The
input gives a non-negative integer n on one line.

Output format:
n + 1 rows are output in increasing power order, and the format of each row is "pow (3, i) = 3 to the power of i value". The problem is to ensure that the output data does not exceed the range of long integers .

Sample input:

3

Sample output:

pow(3,0) = 1
pow(3,1) = 3
pow(3,2) = 9
pow(3,3) = 27

Code from generation to generation :

#include"stdio.h"
#include"math.h"
int main()
{
    int n, i;
    long result;
    scanf("%d", &n);
    for(i = 0;i <=n; i++)
    {
        result = pow(3,i);
        printf("pow(3,%d) = %ld\n", i, result);
    }
    return 0;
}

How can I write something that is not right or wrong? Welcome to correct me! ! After all, I am also a rookie who doesn't understand anything ~~~~~~ I can't write if I don't understand, I can leave a message and ask me, I will definitely say it.