Codeforces 313B - Ilya and Queries Solution

  Solution in C++: 

///**********ALLAH IS ALMIGHTY************///

///AH Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh 

1. #include<bits/stdc++.h>
2. using namespace std;
3. main()
4. {
5. int i,j,m,a,b,l,c=0,r[100009];
6. string s;
7. cin>>s>>m;
8. l=s.length();
9. for(i=1; i<l; i++)
10. {
11. if(s[i-1]==s[i])
12. c++;
13. r[i]=c;
14. }
15. for(i=0;i<m;i++)
16. {
17. cin>>a>>b;
18. cout<<r[b-1]-r[a-1]<<endl;
19. }
20.  
21. }