What is wrong in this code((insertion sort)?two test cases failing

#1

#include
using namespace std;

int main() {

int n;
cin>>n;

int i,j,x,a[n];
 
  for(i=0;i<n;i++)
  cin>>a[i];
  
for(i=2;i<n;i++)
{
    j=i-1;
    x=a[i];
   for(  ;j>=0 && x<a[j] ;j-- )
      a[j+1]=a[j];

   a[j+1]=x;;
}

for(i=0;i<n;i++)
  cout<<a[i];
return 0;

}

#2

@Asis loop start from i=1 but you are doing from i=2 and put endl in cout statement

#3

#include using namespace std; int main() { int n; cin>>n; int i,j,a[n],min; for(i=0;i<n;i++) cin>>n; for(i=0;i<n-1;i++) { min=i; for(j=i+1;j<n;j++) { if(a[min]>a[j]) min=j; } swap(a[min],a[i]); } for(i=0;i<n;i++) cout<<a[i]<<endl; return 0; }

#4

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