10324 Zeros and Ones-TeF3wdWx.txt

#include<iostream>
#include<set>
#include<cstdio>
#include<fstream>
using namespace std;

int main()
{
    string s;int i,j,n,x=0,a,b;char c;
    while(cin>>s){
        scanf("%d",&n);
        printf("Case %d:\n",++x);
        for(int t=1; t<=n; t++){
            scanf("%d%d",&i,&j);
            a = min(i,j);
            b = max(i,j);
            c = s[a];
            bool z = true;
            for(int j=a+1; j<=b ; j++){
                if(s[j]!=c){
                    z = false;
                    break;
                }
            }
            if(z)
                printf("Yes\n");
            else
                printf("No\n");
        }
    }

    return 0;
}