1 files changed, 24 insertions, 0 deletions
diff --git a/codeforces/InfinityStaircase/InfinityStaircase.cpp b/codeforces/InfinityStaircase/InfinityStaircase.cpp
new file mode 100644
index 0000000..aeb982a
--- /dev/null
+++ b/codeforces/InfinityStaircase/InfinityStaircase.cpp
@@ -0,0 +1,24 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+  int tt;
+  cin >> tt;
+  while(tt--) {
+    int n;
+    cin >> n;
+    n-=1;
+    if(n % 5 == 0) {
+      cout << (n / 5) * 2 << endl;
+    } 
+    else{
+      if(n % 5 == 1 || n % 5 == 2 || n % 5 == 3) {
+        cout << ((n / 5) * 2) + 1 << endl; 
+      }
+      else if(n % 5 == 4) {
+        cout << ((n / 5) * 2) + 2 << endl; 
+      }
+    }
+  }
+}