solved 3 problems from cses

1 files changed, 20 insertions, 0 deletions

diff --git a/cses/Permutations/main.cpp b/cses/Permutations/main.cpp
new file mode 100644
index 0000000..2f55cc4
--- /dev/null
+++ b/cses/Permutations/main.cpp
@@ -0,0 +1,20 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+  int n;
+  cin >> n;
+  if (n >= 4 || n == 1) {
+    for(int i = 2; i <= n; i+=2) {
+      cout << i << " ";
+    }
+    for(int i = 1; i <= n; i+=2) {
+      cout << i << " ";
+    }
+  } else {
+    cout << "NO SOLUTION" << "\n";
+  }
+}