1101 B是A的多少倍 较简单

代码

#include <iostream>
#include <cstdio>
#include <string>
#include <iomanip>
using namespace std;

int main()
{
	string a;
	int d;
	string b;
	cin>>a>>d;
	d=a.size()-d;
	b=a;
	for(int i=0;a[i]!=NULL;i++){
		if(i+d<=a.size()-1){
			b[i]=a[i+d];	
		}
		else{
			b[i]=a[i-a.size()+d];
		}	
	}
	cout<<fixed<<setprecision(2)<<(stof(b)/stof(a));
	return 0;
}