PERMUTATION CREATE (#133)

Author: codewithdev

ONLINE JUDGE/CodeChef Challenges/PERMCREATE.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+// your code goes here
+
+long long number;
+cin >> number;
+ for(int i = 0; i < number; i++){
+ long long a;
+ cin >> a;
+ if(a < 4){
+ cout << -1 << endl;
+ }
+ else if( a == 4){
+ cout << 2 << " " << 4 << " " << 1 << " " << 3 ;
+ }
+ else{
+ for(long long i = 1; i <= a; i = i+2){
+ cout << i << " " ;
+ }
+ for(long long i = 2; i <= a; i = i+2){
+ cout << i << " ";
+ }
+ }
+ cout << endl; 
+ }
+
+
+
+
+
+return 0;
+}