ABC390B求调：

#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define PII pair<int,int>
#define For(i,a,b) for(int i = a;i<=b;i++)
#define Rof(i,a,b) for(int i = a;i>=b;i--)
using namespace std;
double a[105];
double gongbi;
int main()
{
    int n;
    cin>>n;
    For(i,1,n){
        cin>>a[i];
    }
    if(n==1){
        cout<<"Yes\n";
        return 0;
    }
    if(a[1]==0){
        For(i,2,n){
            if(a[i]!=0){
                cout<<"No\n";
                return 0;
            }
            
            return 0;
        }
        cout<<"Yes\n";
    }
    gongbi = a[2]*1.0 / a[1];
    
    For(i,3,n){
        if (a[i]*1.0 / a[i - 1] != gongbi){
            cout<<"No\n";
            return 0;
        }
    }
    cout<<"Yes\n";
    return 0;
}

求各位大佬帮忙看看，感谢