#include <stdio.h> #include <math.h> int main () { long long int n = 32; long long int i = 0; long long int sum = 0; long long int a; while (i<n) { a=pow(2,i); sum += a; i++; } printf("n=%lld,sum=%lld",n,sum); return 0; }
标签:main,task,int,32,long,include From: https://www.cnblogs.com/lkf1213/p/16783470.html