Not passing all test cases

#1
#2

Hey @Rajat-Sharma-2078329489142103 your permutation function is not generating all the permutations.
Try this example AABC, it doesn’t generate the permutation starting with C.
You may try the following snippet of code to generate permutations but then you need to make changes in main function.
void permute(string a, int l, int r)
{
// Base case
if (l == r)
cout<<a<<endl;
else
{
// Permutations made
for (int i = l; i <= r; i++)
{

        // Swapping done  
        swap(a[l], a[i]);  

        // Recursion called  
        permute(a, l+1, r);  

        //backtrack  
        swap(a[l], a[i]);  
    }  
}

}

#3

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