diff --git a/Codes/1985 F - Final Boss/1985F.cpp b/Codes/1985 F - Final Boss/1985F.cpp
new file mode 100644
index 0000000..acb45f9
--- /dev/null
+++ b/Codes/1985 F - Final Boss/1985F.cpp	
@@ -0,0 +1,52 @@
+#include <bits/stdc++.h>
+using namespace std;
+#define ll long long
+#define endl '\n'
+ll pow(ll x,ll y,ll m=1e9+7){ll ans=1;x%=m;while(y){if(y&1)ans=(ans*x)%m;x=(x*x)%m;y>>=1;}return ans;}
+
+void solve()
+{
+    ll h,n;
+    cin>>h>>n;
+    vector<int>a(n);
+    vector<int>b(n);
+    for(auto &i:a)
+    {
+        cin>>i;
+        h -=i;
+    }
+    for(auto &i:b)  cin>>i;
+    if(h<=0)
+    {
+        cout<<1<<endl;
+        return;
+    }
+    ll l=0, r=h*2e5, ans;
+    while(l<=r)
+    {
+        ll mid = l + (r-l)/2;
+        ll s=0;
+        for(int i=0; i<n; ++i)
+            s += (mid/b[i])*a[i];
+        if(h-s<=0)
+        {
+            ans=mid;
+            r=mid-1;
+        }
+        else
+            l = mid+1;
+    }
+    cout<<ans+1<<endl;
+}
+
+signed main()
+{
+    ios_base::sync_with_stdio(false), cin.tie(nullptr);
+    int TCS = 1;
+    cin >> TCS;
+    for (int TC = 1; TC <= TCS; ++TC)
+    {
+        // cout<<"Case "<<TC<<": ";
+        solve();
+    }
+}
\ No newline at end of file
diff --git a/Readme.md b/Readme.md
index 4cc3f4b..2aa2538 100644
--- a/Readme.md
+++ b/Readme.md
@@ -344,6 +344,7 @@ This repository contains my solutions of Codeforces problems. They are in C++ la
 | 332 | 1985 C | Good Prefixes | [Question](https://codeforces.com/problemset/problem/1985/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1985%20C%20-%20Good%20Prefixes)
 | 333 | 1985 D | Manhattan Circle | [Question](https://codeforces.com/problemset/problem/1985/D) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1985%20D%20-%20Manhattan%20Circle)
 | 334 | 1985 E | Secret Box | [Question](https://codeforces.com/problemset/problem/1985/E) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1985%20E%20-%20Secret%20Box)
+| 335 | 1985 F | Final Boss | [Question](https://codeforces.com/problemset/problem/1985/F) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1985%20F%20-%20Final%20Boss)