网易笔试题：第x个苹果属于哪一堆

#include<iostream>  
#include<vector> 
#include<string> 
#include<algorithm>
using namespace std;  


int main()
{
    int n;
    cin>>n;
    vector<int> a;
    int start=1;
	a.push_back(start);
    for(int i=0;i<n;i++)
    {
        int temp;
        cin>>temp;
        start+=temp;
        a.push_back(start);
    }
    int m;
    cin>>m;
    for(i=0;i<m;i++)
    {
        int q;
        cin>>q;
        int start=0,end=n-1;
        while(start<=end)
        {
            int mid=(start+end)/2;
            if(a[mid]<=q&&q<a[mid+1])
            {
                cout<<mid+1<<endl;
                break;
            }
            else if(q<a[mid])
            {
                end=mid-1;
            }
            else if(q>=a[mid+1])
            {
                start=mid+1;
            }
        }
    }
    return 0;
}