why this code is not running
#include
using namespace std;
int main()
{
int a[10][10];
int m ,n;
int sr=0;
int er=m-1;
int sc=0;
int ec=n-1;
cout<<“enter the no of elements of array :”<<endl;
cin>>m>>n;
cout<<"enter the values : "<<endl;
for(int i=0;i<m;i++)
{
for(int j=0;j<n;j++)
{
cin>>a[i][j];
}
}
while(sr<=er&&sc<=ec)
{
for(int i=sc;i<=ec;i++)
{
cout<<a[sr][i]<<" “;
}
sr++;
for(int i=sr;i<=er;i++)
{
cout<<a[i][ec]<<” “;
}
ec–;
for(int i=ec;i>=sc;i–)
{
cout<<a[er][i]<<” “;
}
er–;
for(int i=er;i>=sr;i–)
{
cout<<a[i][sc]<<” ";
}
sc++;
}
}