added Array Permutation Average

Hacktoberfest2022/Average_Permutation.cpp

@@ -0,0 +1,42 @@
+#include <bits/stdc++.h>
+#define int long long 
+#define vi vector<int>
+#define vi2d vector<int,int>
+#define vs vector<string>
+#define nl endl
+using namespace std;
+// Code for File handling:
+//const string kanishkI = input.txt;
+//const string kanishko = output.txt;
+// ifstream fin(kanihskI);
+//ofstream fout(knaishko);
+
+
+
+
+signed main()
+{
+ ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
+int t;cin>>t;
+while(t--){
+
+
+    int n;
+    cin>>n;
+    if(n>3){
+
+
+    for(int i =n-1;i>0;i--){
+        cout<<i<<" ";
+    }cout<<n<<nl;
+    }
+    else {
+        for(int i =n;i>0;i--){
+        cout<<i<<" ";
+    }cout<<nl;
+    }
+
+
+}
+return 0;
+}