initial commit

1624B.cpp

@@ -0,0 +1,26 @@
+#include<bits/stdc++.h>
+using namespace std;
+using ll = long long;
+
+
+void solve()
+{
+    int n,x;
+    cin>>n>>x;
+    n=n-2;
+    int f;
+    if(n%x==0) f=n/x+1;
+    else f=n/x+2;
+    cout<<f<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    cin >> TC;
+    cin.ignore();
+    while (TC--) solve();
+}