Bratara

#include <fstream>
using namespace std;
ifstream cin("bratara.in");
ofstream cout("bratara.out");
int v[100000],vs[100000];
int main()
{
    int n,cer,cnt,i,ci,a,max1,cdi,id;
    cin>>cer>>n;
    for(i=0;i<n;i++){
        cin>>a;
        v[i]=a;
        while(a>99)
            a/=10;
        vs[i]=a;
    }
    cnt=0;
    if(cer==1){
        i=0;
        id=0;
        cdi=0;
        while(i<n-1){
            if(v[i]%100==vs[i+1]){
                while(i<n-1 && v[i]%100==vs[i+1])
                    i++;
                cnt++;
            }
            i++;
        }
        if(cnt>0)
            cout<<cnt;
        else
            cout<<"-1";
    }else{
        max1=0;
        i=0;
        id=-1;
        cdi=0;
        while(i<n && cnt<n-1-i){
            if(v[i]%100==vs[i+1]){
                ci=i+1;
                while(ci<n-1 && v[ci]%100==vs[ci+1])
                    ci++;
                while(ci>i && v[ci]%100!=vs[i])
                    ci--;
                if(ci-i+1>max1){
                    max1=ci-i+1;
                    cdi=ci+1;
                    id=i+1;
                }
            }
            i++;
        }
        if(id>-1)
            cout<<max1<<" "<<id<<" "<<cdi;
        else
            cout<<"-1";
    }
    return 0;
}