#include<stdio.h>
#include<math.h>
int main(
void)
{
int n,i,sum;
printf("Enter n:");
scanf("%d",&
n);
sum=
0;
for(i=
1;i<=n;i++
){
sum=pow(
2,i);
}
printf("sum=%.d\n",sum);
return 0;
}
转载于:https://www.cnblogs.com/liruijia199531/p/3378568.html
相关资源：Python 练习题100道
