为啥我的代码这么短？？？

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin >> n;
    for(int i=1;i<=n;i++)
    {
        int x;
        cin >> x;
        cout << i << ":";
        for(int j = 1; j <= x; j++)
            cout << "*";
        cout << endl;
    }
}

7星???

#include <iostream>//acBob(8520576)
using namespace std;
int main()
{
    int n, a[105];
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
         cin >> a[i];
    }
    for (int i = 1; i <= n; i++)
   {
         cout << i << ":";
        for (int j = 1; j <= a[i]; j++)
        {
             cout << "*";
        }
        cout << endl;
    }
    return 0;
}

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    int a[1023];
    cin >> n;
    for(int i=1;i<=n;i++)
    {
        cin >> a[i];
    }
    for(int i=1;i<=n;i++)
    {
        cout << i << ":";
        for(int j=1;j<=a[i];j++)
        {
            cout << "*";
        }
        cout << endl;
    }
}