diff --git a/String_Algo/substring_removal_game.cpp b/String_Algo/substring_removal_game.cpp
new file mode 100644
index 0000000..acfcb4c
--- /dev/null
+++ b/String_Algo/substring_removal_game.cpp
@@ -0,0 +1,41 @@
+/*.......Competitive prograamming...*/
+/*Alice and Bob play a game. They have a binary string s (a string such that each character in it is either 0 or 1). 
+Alice moves first, then Bob, then Alice again, and so on.
+During their move, the player can choose any number 
+(not less than one) of consecutive equal characters in s and delete
+ them.The game ends when the string becomes empty, and the score of each player is the number of 1-characters deleted by them.
+Each player wants to maximize their score. Calculate the resulting 
+score of Alice...*/
+
+#include <iostream>
+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int t;cin>>t;
+    int count=0;
+    while(t--){
+       string s;
+        cin>>s;
+        s.push_back('0');
+        vector<int>a;
+        int cc=0;
+        for(int i=0;i<(int)s.size();i++){
+            if(s[i]=='1')
+                cc++;
+            else{
+                a.push_back(cc);
+                cc=0;
+            }
+        }
+        sort(a.rbegin(),a.rend());
+        int total=0;
+        for(int i=0;i<(int)a.size();i++){
+            if(i%2==0)
+                total+=a[i];
+        }
+        cout<<total<<"\n";
+    }
+    return 0;
+}