RT，他卡住了

#include<bits/stdc++.h>
using namespace std;
int main(){
 int n;
 cin>>n;
 int ma[350][350];
 int x=1, y=0;
 int k = 1;
 int r = n, l=1;
 int t = 1, d=n;
 for(int i = 1; i<=n*n; ++i)
 {
  if(k == 1)
  {
   y++;
   if(y < r)
   {
    ma[x][y] = i;
   }
   else
   {
    ma[x][y] = i;
    k = 2;
    t++;
   }
  }
  else if(k == 2)
  {
   x++;
   if(x<d)
   {
    ma[x][y] = i;
   }
   else
   {
    ma[x][y] = i;
    k = 3;
    r--;
   }
  }
  else if(k == 3)
  {
   y--;
   if(y>l)
   {
    ma[x][y] = i;
   }
   else
   {
    ma[x][y] = i;
    k = 4;
    d -- ;
   }
  }
  else if(k == 4)
  {
   y--;
   if(y>t)
   {
    ma[x][y] = i;
   }
   else
   {
    ma[x][y] = i;
    l++;
    k = 1;
   }
  }
 }
 for(int i=1; i<=n ;++i)
 {
  for(int j=1; j<=n; ++j)
  {
   printf("%3d",ma[i][j]);
  }
  printf("\n");
 }
}```