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/* power2.c -- Print out powers of 2: 1, 2, 4, 8, .. up to 2^N
*/
#include <stdio.h>
#define N 16
int main(void) {
int n; /* The current exponent */
int val = 1; /* The current power of 2 */
printf("\t n \t 2^n\n");
printf("\t================\n");
for (n=0; n<=N; n++) {
printf("\t%3d \t %6d\n", n, val);
val = 2*val;
}
return 0;
}
/* It prints out :
n 2^n
================
0 1
1 2
2 4
3 8
4 16
5 32
6 64
7 128
8 256
9 512
10 1024
11 2048
12 4096
13 8192
14 16384
15 32768
16 65536
*/
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