提交时间:2026-01-09 15:23:45

运行 ID: 81888

#include <iostream> using namespace std; int main() { double s=0; int j=1; for(int i=1;i<=30;++i){ s+=1.0*j/100; j*=2; } cout<<1.0*s/100<<" "; cout<<30*100000; return 0; }