标签：amp can turn img clu while png main mic
#include<stdio.h>
int main()
{
int a,b = 1;
scanf("%d", &a);
while (--a)
{
b = (b + 1) * 2;
}
printf("%d", b);
return 0;
}标签：amp can turn img clu while png main mic
原文地址：https://blog.51cto.com/14737345/2479852
