Submission #24094

#	Time	Username	Problem	Language	Result	Execution time	Memory
24094		Hiasat	Last supper (IOI12_supper)	C++14	100 / 100	225 ms	26832 KiB

advisor

#include <bits/stdc++.h>
#include "advisor.h"

using namespace std;

typedef pair<int,int> pii;

vector<int> nxt[100001],rem[100001];
bool have[100001],init[100001],ad[100001];

int n;

int go(int color,int cur){
	vector<int>::iterator it = upper_bound(nxt[color].begin(),nxt[color].end(),cur);
	if(it == nxt[color].end())
		return n;
	return *it;
}

bool active(int color , int idx){
	int nxt = go(color,idx);
	vector<int>::iterator it = upper_bound(rem[color].begin(),rem[color].end(),idx);
	int nxR = 0;
	if(it == rem[color].end())
		nxR = n;
	else
		nxR = *it;
	if(nxt < nxR)
		return 1;
	return 0;
}
void ComputeAdvice(int *C, int N, int K, int M) {
	n = N;
	for (int i = 0; i < N; ++i) {
		nxt[C[i]].push_back(i);
	}
	set< pii > q;
	for (int i = 0; i < K; ++i) {
		have[i] = 1;
		q.insert(make_pair(go(i, -1), i));
	}
	for (int i = 0; i < N; i++) {
		int req = C[i];
		if (have[req]) {
			q.erase(make_pair(go(req, i - 1), req));
			q.insert(make_pair(go(req, i), req));
			continue;
		}
		pii src = (*(--q.end()));
		q.erase(src);
		rem[src.second].push_back(i);
		have[src.second] = 0;
		have[req] = 1;
		q.insert(make_pair(go(req, i), req));
	}
	//cout << "INITIAL " << endl;
	for (int i = 0; i < K; ++i){
		WriteAdvice(active(i,-1));
	//	cout << "THERE " << active(i,-1) << endl;
	}
	//cout << "REQUESTS" << endl;
	for (int i = 0; i < N; ++i){
		WriteAdvice(active(C[i],i));
		//cout << C[i] << " -> " << active(C[i],i) << endl;
	}
}

assistant

#include <bits/stdc++.h>
#include "assistant.h"

using namespace std;

typedef pair<int,int> pii;

bool hold[100001],state[100001];

set<int> passive;


void Assist(unsigned char *A, int N, int K, int R) {
	for (int i = 0; i < R; ++i){
		if(i >= K){
			state[i-K] = A[i];
		}else{
			hold[i] = 1;
			if(A[i] == 0){
				passive.insert(i);
			}
		}
	}	
	for (int i = 0; i < N; ++i){
		int req = GetRequest();
		if(!hold[req]){
			PutBack(*passive.begin());
			hold[*passive.begin()] = 0;
			hold[req] = 1;
			passive.erase(passive.begin());
		}
		if(state[i] == 1){
			passive.erase(req);
		}else{
			passive.insert(req);
		}
	}
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 35 / 35
• Subtask 5: 39 / 39