For this Question: Given a string S. The task is to print all permutations of the characters in the given string.The only line of input contains a string S with all distinct uppercase letters of the English alphabet.

Constraints:-
1<=|S|<=8Print all permutations of a given string S with single space and all permutations should be in lexicographically increasing order.Sample Input:
ABC

Sample Output:
ABC ACB BAC BCA CAB CBA, I have written this Solution Code: #include "bits/stdc++.h"
#pragma GCC optimize "03"
using namespace std;

#define int long long int
#define ld long double
#define pi pair<int, int>
#define pb push_back
#define fi first
#define se second
#define IOS ios::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#ifndef LOCAL
#define endl '\n'
#endif

const int N = 2e5 + 5;
const int mod = 1e9 + 7;
const int inf = 1e9 + 9;
vector<string> v;
void permute(string a, int l, int r)
{
    // Base case
    if (l == r)
        v.push_back(a);
    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]);
        }
    }
}
signed main() {
	IOS;
	string s;
	cin >> s;
	sort(s.begin(), s.end());
	permute(s, 0, s.length()-1);
	sort(v.begin(),v.end());
	for(int i=0;i<v.size();i++)
	cout<<v[i]<<" ";
	return 0;
}
, In this Programming Language: C++, Now tell me if this Code is compilable or not?