diff --git a/CPP/binaray_sting.cpp b/CPP/binaray_sting.cpp
new file mode 100644
index 0000000..c0ff3b4
--- /dev/null
+++ b/CPP/binaray_sting.cpp
@@ -0,0 +1,32 @@
+//link:https://www.codechef.com/OCT221D/problems/BINARYSUB
+
+#include<bits/stdc++.h>
+
+using namespace std;
+int main(){
+    
+    long long int test;
+    cin >> test;
+    for(int j=0;j<test;j++){
+        string substr;
+        cin >> substr;
+        
+        long long int sz=substr.size();
+       long long int ar1[sz+1];
+        ar1[sz]=1;
+        ar1[sz-1]=1;
+        for(int i=sz-2 ; i>=0 ; i--)
+        {
+            if(substr[i]!=substr[i+1]){
+                ar1[i] = ( ar1[i+2] + ar1[i+1] ) % 998244353;
+            }
+            
+            else{
+                
+            ar1[i]=ar1[i+1];
+            }
+        }
+        
+        cout<<ar1[0]%998244353<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/CPP/conditional_problem.cpp b/CPP/conditional_problem.cpp
new file mode 100644
index 0000000..3bf9f69
--- /dev/null
+++ b/CPP/conditional_problem.cpp
@@ -0,0 +1,21 @@
+//link:  https://www.codechef.com/START59D/problems/SPECIALITY
+
+#include <iostream>
+using namespace std;
+
+int main() {
+    int n;
+    cin>>n;
+    for(int i=0;i<n;i++){
+        int s,t,e;
+        cin>>s>>t>>e;
+        if(s>t && s>e)
+        cout<<"Setter"<<endl;
+        else if(t>s && t>e)
+        cout<<"Tester"<<endl;
+        else
+        cout<<"Editorialist"<<endl;
+    }
+	// your code goes here
+	return 0;
+}
\ No newline at end of file