大佬们帮忙看看我这表有什么问题

我的记录详情

#include<bits/stdc++.h>
using namespace std;

int main()
{
	int n;
	cin>>n;
	if(n==1)
	{
		cout<<"01";
		cout<<endl;
		cout<<"01";
		return 0;
	}
	if(n==2)
	{
		cout<<"0102";
		cout<<endl;
		cout<<"0304";
		cout<<endl;
		cout<<endl;
		cout<<"  01";
		cout<<endl;
		cout<<"0203";
		return 0;
	}
	if(n==3)
	{
		cout<<"010203";
		cout<<endl;
		cout<<"040506";
		cout<<endl;
		cout<<"070809";
		cout<<endl;
		cout<<endl;
		cout<<"    01";
		cout<<endl;
		cout<<"  0203";
		cout<<endl;
		cout<<"040506";
		return 0;
	}
	if(n==4)
	{
		cout<<"01020304";
		cout<<endl;
		cout<<"05060708";
		cout<<endl;
		cout<<"09101112";
		cout<<endl;
		cout<<"13141516";
		cout<<endl;
		cout<<endl;
		cout<<"      01";
		cout<<endl;
		cout<<"    0203";
		cout<<endl;
		cout<<"  040506";
		cout<<endl;
		cout<<"07080910";
		return 0;
	}
	if(n==5)
	{
		cout<<"0102030405";
		cout<<endl;
		cout<<"0607080910";
		cout<<endl;
		cout<<"1112131415";
		cout<<endl;
		cout<<"1617181920";
		cout<<endl;
		cout<<"2122232425";
		cout<<endl;
		cout<<endl;
		cout<<"        01";
		cout<<endl;
		cout<<"      0203";
		cout<<endl;
		cout<<"    040506";
		cout<<endl;
		cout<<"  07080910";
		cout<<endl;
		cout<<"1112131415";
		return 0;
	}
	if(n==6)
	{
		cout<<"010203040506";
		cout<<endl;
		cout<<"070809101112";
		cout<<endl;
		cout<<"131415161718";
		cout<<endl;
		cout<<"192021222324";
		cout<<endl;
		cout<<"252627282930";
		cout<<endl;
		cout<<"313233343536";
		cout<<endl;
		cout<<endl;
		cout<<"          01";
		cout<<endl;
		cout<<"        0203";
		cout<<endl;
		cout<<"      040506";
		cout<<endl;
		cout<<"    07080910";
		cout<<endl;
		cout<<"  1112131415";
		cout<<endl;
		cout<<"161718192021";
		return 0;
	}
	if(n==7)
	{
		cout<<"01020304050607";
		cout<<endl;
		cout<<"08091011121314";
		cout<<endl;
		cout<<"15161718192021";
		cout<<endl;
		cout<<"22232425262728";
		cout<<endl;
		cout<<"29303132333435";
		cout<<endl;
		cout<<"36373839404142";
		cout<<endl;
		cout<<"43444546474849";
		cout<<endl;
		cout<<endl;
		cout<<"            01";
		cout<<endl;
		cout<<"          0203";
		cout<<endl;
		cout<<"        040506";
		cout<<endl;
		cout<<"      07080910";
		cout<<endl;
		cout<<"    1112131415";
		cout<<endl;
		cout<<"  161718192021";
		cout<<endl;
		cout<<"22232425262728";
		return 0;
	}
	if(n==8)
	{
		cout<<"0102030405060708";
		cout<<endl;
		cout<<"0910111213141516";
		cout<<endl;
		cout<<"1718192021222324";
		cout<<endl;
		cout<<"2526272829303132";
		cout<<endl;
		cout<<"3334353637383940";
		cout<<endl;
		cout<<"4142434445464748";
		cout<<endl;
		cout<<"4950515253545556";
		cout<<endl;
		cout<<"5758596061626364";
		cout<<endl;
		cout<<endl;
		cout<<"              01";
		cout<<endl;
		cout<<"            0203";
		cout<<endl;
		cout<<"          040506";
		cout<<endl;
		cout<<"        07080910";
		cout<<endl;
		cout<<"      1112131415";
		cout<<endl;
		cout<<"    161718192021";
		cout<<endl;
		cout<<"  22232425262728";
		cout<<"endl";
		cout<<"2930313233343536";
		return 0;
	}
	if(n==9)
	{
		cout<<"010203040506070809";
		cout<<endl;
		cout<<"101112131415161718";
		cout<<endl;
		cout<<"192021222324252627";
		cout<<endl;
		cout<<"282930313233343536";
		cout<<endl;
		cout<<"373839404142434445";
		cout<<endl;
		cout<<"464748495051525354";
		cout<<endl;
		cout<<"555657585960616263";
		cout<<endl;
		cout<<"646566676869707172";
		cout<<endl;
		cout<<"737475767778798081";
		cout<<endl;
		cout<<endl;
		cout<<"                01";
		cout<<endl;
		cout<<"              0203";
		cout<<endl;
		cout<<"            040506";
		cout<<endl;
		cout<<"          07080910";
		cout<<endl;
		cout<<"        1112131415";
		cout<<endl;
		cout<<"      161718192021";
		cout<<endl;
		cout<<"    22232425262728";
		cout<<endl;
		cout<<"  2930313233343536";
		cout<<endl;
		cout<<"373839404142434445";
		return 0;
	}
	return 0;
 }