[learn C and fly] 4day Chapter 2 program in C language (exercise 2.5 generate power table and factorial table

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pow(2,i) function

practice R7-1 Generate 2 The power table of

Enter a non negative integer n, Generate one 2 The power table of , Output 2​0​​~2​n​​ Value . Power function calculation can be called 2 Power of .

Input format :

 The input gives a nonnegative integer on one line n.

Output format :

 Output in ascending order of power n+1 That's ok , The format of each line is “pow(2,i) = 2 Of i The value of the power ”, Please note that there is a space to the left and right of the equal sign . The title ensures that the calculation result does not exceed the value range of integer .

sample input :

3

sample output :

pow(2,0) = 1
pow(2,1) = 2
pow(2,2) = 4
pow(2,3) = 8

demo

#include <stdio.h>
#include <math.h>
int main()
{
    int i,n;
    int p;
    scanf("%d",&n);
    for(i=0;i<=n;i++){
        p=pow(2,i);
        printf("pow(2,%d) = %d\n",i,p);

    }
    return 0;
}

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