Submission #198224

#	Time	Username	Problem	Language	Result	Execution time	Memory
198224		alishahali1382	Cake (CEOI14_cake)	C++14	35 / 100	2097 ms	9772 KiB

cake

#include <bits/stdc++.h>
#pragma GCC optimize ("O2")
#pragma GCC optimize ("unroll-loops")
//#pragma GCC optimize("no-stack-protector,fast-math")

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<pii, int> piii;
typedef pair<ll, ll> pll;
#define debug(x) cerr<<#x<<'='<<(x)<<endl;
#define debugp(x) cerr<<#x<<"= {"<<(x.first)<<", "<<(x.second)<<"}"<<endl;
#define debug2(x, y) cerr<<"{"<<#x<<", "<<#y<<"} = {"<<(x)<<", "<<(y)<<"}"<<endl;
#define debugv(v) cerr<<#v<<" : ";for (auto x:v) cerr<<x<<' ';cerr<<endl;
#define all(x) x.begin(), x.end()
#define pb push_back
#define kill(x) return cout<<x<<'\n', 0;

const ld eps=1e-7;
const int inf=1000000010;
const ll INF=10000000000000010LL;
const int mod = 1000000007;
const int MAXN = 250010, LOG=20;

int n, m, k, u, v, x, y, t, a, b, ans;
int A[MAXN], N;
pii seg[MAXN<<2];
vector<int> Mx;

void Set(int id, int tl, int tr, int pos, int val){
	if (pos<tl || tr<=pos) return ;
	if (tr-tl==1){
		seg[id]={val, pos};
		return ;
	}
	int mid=(tl+tr)>>1;
	Set(id<<1, tl, mid, pos, val);
	Set(id<<1 | 1, mid, tr, pos, val);
	seg[id]=max(seg[id<<1], seg[id<<1 | 1]);
}

pii Get(int id, int tl, int tr, int l, int r){
	if (r<=tl || tr<=l) return seg[0];
	if (l<=tl && tr<=r) return seg[id];
	int mid=(tl+tr)>>1;
	return max(Get(id<<1, tl, mid, l, r), Get(id<<1 | 1, mid, tr, l, r));
}

int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	//freopen("input.txt", "r", stdin);
	//freopen("output.txt", "w", stdout);
	cin>>n>>k;
	for (int i=1; i<=n; i++) cin>>A[i], Mx.pb(i);
	//A[k]=0; // maybe bug
	A[0]=inf;
	A[n+1]=inf;
	N=n;
	
	for (int i=0; i<=n+1; i++) Set(1, 0, n+1, i, A[i]);
	
	sort(all(Mx), [](int i, int j){
		return A[i]>A[j];
	});
	Mx.resize(min(n, 10));
	
	cin>>m;
	char typ;
	while (m--){
		cin>>typ;
		if (typ=='E'){
			cin>>x>>y;
			//if (x==k) continue ; // maybe bug
			A[x]=++N;
			Set(1, 0, n+1, x, A[x]);
			for (int i=y-2; ~i; i--){
				A[Mx[i]]=++N;
				Set(1, 0, n+1, Mx[i], A[Mx[i]]);
			}
			
			Mx.pb(x);
			sort(all(Mx), [](int i, int j){
				return A[i]>A[j];
			});
			Mx.resize(unique(all(Mx))-Mx.begin());
			
			// I hope thats just it!
			
			continue ;
		}
		cin>>x;
		if (x==k){
			cout<<"0\n";
			continue ;
		}
		if (x<k){
			int mx=Get(1, 0, n+1, x, k).first;
			int dwn=k, up=n+1;
			while (up-dwn>1){
				int mid=(dwn+up)>>1;
				if (Get(1, 0, n+1, k+1, mid+1).first>mx) up=mid;
				else dwn=mid;
			}
			cout<<dwn-x<<'\n';
			
			continue ;
		}
		int mx=Get(1, 0, n+1, k+1, x+1).first;
		int dwn=0, up=k;
		while (up-dwn>1){
			int mid=(dwn+up)>>1;
			if (Get(1, 0, n+1, mid, k).first>mx) dwn=mid;
			else up=mid;
		}
		cout<<x-up<<'\n';
	}
	
	
	return 0;
}
/*
5 3
5 1 2 4 3
2
F 1
F 2


*/

• Subtask 1: 15 / 15
• Subtask 2: 0 / 15
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50