#include <stdio.h>
#include <math.h>
3:
int main()
5: {
double sum = 0;
int i;
for (i = 1; i <= 64; ++i)
9: {
10: sum += pow(2, i-1);
11: }
, sum);
13:
return 0;
15: }
#include <stdio.h>
#include <math.h>
3:
int main()
5: {
double sum = 0;
int i;
for (i = 1; i <= 64; ++i)
9: {
10: sum += pow(2, i-1);
11: }
, sum);
13:
return 0;
15: }
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