Adding Yet_another_meme_preblem.cpp to Codeforces

Codeforces/Yet_another_meme_problem.cpp

@@ -0,0 +1,31 @@
+/*Problem Statement - You are given two integers A and B, calculate the number of pairs (a,b) such that 1≤a≤A, 1≤b≤B, 
+and the equation a⋅b+a+b=conc(a,b) is true; conc(a,b) is the concatenation of a and b (for example, conc(12,23)=1223, 
+conc(100,11)=10011). a and b should not contain leading zeroes.*/
+
+//Problem Link - https://codeforces.com/contest/1288/problem/B
+
+#include<bits/stdc++.h>
+using namespace std;
+#define int long long
+signed main()
+{
+    int t;
+    cin>>t;
+    // t = 1;
+    while(t--)
+    {
+        int a, b;
+        cin>>a>>b;
+
+        b=b+1;
+        int count = 0;
+        while(b>0)
+        {
+            b = b/10;
+            count++;
+        }
+        int ans = a*(count-1);
+        cout<<ans<<endl;
+
+    }
+}