This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<deque>
#include<queue>
#include<vector>
#include<algorithm>
#include<iostream>
#include<set>
#include<cmath>
#include<tuple>
#include<string>
#include<chrono>
#include<functional>
#include<iterator>
#include<random>
#include<unordered_set>
#include<array>
#include<map>
#include<iomanip>
#include<assert.h>
#include<bitset>
#include<stack>
#include<memory>
using namespace std;
typedef long long int llint;
typedef long double lldo;
#define mp make_pair
#define mt make_tuple
#define pub push_back
#define puf push_front
#define pob pop_back
#define pof pop_front
#define fir first
#define sec second
#define res resize
#define ins insert
#define era erase
/*
cout<<setprecision(20);
cin.tie(0);
ios::sync_with_stdio(false);
*/
const llint mod=1000000000;
const llint big=2.19e15+1;
const long double pai=3.141592653589793238462643383279502884197;
const long double eps=1e-15;
template <class T,class U>bool mineq(T& a,U b){if(a>b){a=b;return true;}return false;}
template <class T,class U>bool maxeq(T& a,U b){if(a<b){a=b;return true;}return false;}
llint gcd(llint a,llint b){if(a%b==0){return b;}else return gcd(b,a%b);}
llint lcm(llint a,llint b){if(a==0){return b;}return a/gcd(a,b)*b;}
template<class T> void SO(T& ve){sort(ve.begin(),ve.end());}
template<class T> void REV(T& ve){reverse(ve.begin(),ve.end());}
template<class T>llint LBI(vector<T>&ar,T in){return lower_bound(ar.begin(),ar.end(),in)-ar.begin();}
template<class T>llint UBI(vector<T>&ar,T in){return upper_bound(ar.begin(),ar.end(),in)-ar.begin();}
/*
各ラウンドについて木を作る
nラウンド上 をダブリング 自分より強い騎士に当たらなければよい
それで求める
左から何番目か を探すのに結局セグ木がいる
*/
int GetBestPosition(int N,int C,int RR,int K[],int S[],int E[]){
//SとEがもともとどこからどこだったのですか?
if(RR+1==N){return 0;}//tourist
vector<int>mtS(C);
vector<int>mtE(C);
int h,i,j;
static int seg[262144]={0};//1,1
seg[1]=131072;
for(i=2;i<262144;i++){seg[i]=seg[i/2]/2;}
vector<array<int,18>>dab(C+N);
vector<int>dare(N);
for(i=0;i<N;i++){dare[i]=i+C;}
for(i=0;i<C;i++){
int s=S[i],e=E[i]+1;
int bas=1;
while(bas<131072){
bas*=2;
if(seg[bas]<=s){s-=seg[bas];bas++;}
}
dab[dare[bas-131072]][0]=i;
mtS[i]=bas-131072;
dare[mtS[i]]=i;
bas=1;
while(bas<131072){
bas*=2;
if(seg[bas]<=e){e-=seg[bas];bas++;}
}
mtE[i]=bas-131072;
//cerr<<"e="<<e<<endl;
for(j=S[i]+1;j<=E[i];j++){
bas=1;int ge=S[i]+1;
while(bas<131072){
bas*=2;
if(seg[bas]<=ge){ge-=seg[bas];bas++;}
}
dab[dare[bas-131072]][0]=i;
while(bas>0){seg[bas]--;bas/=2;}
}
//cerr<<mtS[i]<<" "<<mtE[i]<<endl;
}
//これで木を作ることができた
//ダブリングをおこなう
dab[C-1][0]=C-1;
for(h=1;h<18;h++){
for(i=0;i<N+C;i++){dab[i][h]=dab[dab[i][h-1]][h-1];}
}
//次に誰が勝つかを行う
vector<bool>tuyo(N);
for(i=0;i<N-1;i++){tuyo[i]=(RR<K[i]);}
tuyo[N-1]=1;
for(j=0;j<N;j++){if(tuyo[j]){break;}}
int L=0,R=j+1;
int sai=-1,ans=-1;
for(i=0;i<N;i++){
//cerr<<L<<" "<<R<<endl;
int win=0,rod=C+i;
for(h=17;h>=0;h--){
int nex=dab[rod][h];
if(L<=mtS[nex]&&mtE[nex]<=R){rod=dab[rod][h];win+=(1<<h);}
}
//cerr<<win<<endl;
if(sai<win){sai=win;ans=i;}
if(tuyo[i]){
for(j=i+1;j<N;j++){if(tuyo[j]){break;}}
L=i+1;R=j+1;
}
}
return ans;
}
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