Submission #98209

#	Time	Username	Problem	Language	Result	Execution time	Memory
98209		E869120	Last supper (IOI12_supper)	C++14	0 / 100	475 ms	29904 KiB

advisor

#include "advisor.h"
#include <bits/stdc++.h>
using namespace std;

int post[1 << 18], I[1 << 18]; vector<int> Z[1 << 18];
bool used[1 << 18];

void ComputeAdvice(int *C, int N, int K, int M) {
	for (int i = 0; i < N; i++) Z[C[i]].push_back(i);
	for (int i = 0; i < N; i++) post[i] = (1 << 30);
	for (int i = 0; i < K; i++) {
		for (int j = (int)Z[i].size() - 2; j >= 0; j--) post[Z[i][j]] = Z[i][j + 1];
	}
	
	priority_queue<pair<int, int>, vector<pair<int, int>>, less<pair<int, int>>> que;
	for (int i = 0; i < K; i++) {
		used[i] = true; I[i] = i;
		if (Z[i].size() >= 1) que.push(make_pair(Z[i][0], i));
		else que.push(make_pair((1 << 30), i));
	}
	
	vector<int> L;
	for (int i = 0; i < N; i++) {
		if (used[C[i]] == false) {
			pair<int, int> G = que.top(); que.pop();
			used[G.second] = false; I[C[i]] = I[G.second]; L.push_back(I[C[i]]);
		}
		que.push(make_pair(post[i], C[i])); used[C[i]] = true;
	}
	
	int sz = 1, size_ = 2;
	while (size_ < K) { size_ *= 2; sz++; }
	
	for (int i = 0; i < L.size(); i++) {
		for (int j = 0; j < sz; j++) WriteAdvice((L[i] / (1 << j)) % 2);
	}
}

assistant

#include "assistant.h"
#include <bits/stdc++.h>
using namespace std;

int LL[1 << 18], DAI[1 << 18]; bool used2[1 << 18];

void Assist(unsigned char *A, int N, int K, int R) {
	int sz = 1, size_ = 2;
	while (size_ < K) { size_ *= 2; sz++; }
	
	for (int i = 0; i < R / sz; i++) {
		for (int j = 0; j < sz; j++) { LL[i] += A[i * sz + j] * (1 << j); }
	}
	
	for (int i = 0; i < K; i++) { used2[i] = true; DAI[i] = i; }
	
	int cnt = 0;
	for (int i = 0; i < N; i++) {
		int G = GetRequest();
		if (used2[G] == false) {
			int nex = LL[cnt]; //cout << "request = " << G << ", nex = " << nex << ", initial value = " << DAI[nex] << ", num = " << LL[cnt] << endl;
			PutBack(DAI[nex]); cnt++;
			used2[G] = true; used2[DAI[nex]] = false; DAI[nex] = G;
		}
	}
}

Compilation message (stderr)

advisor.cpp: In function 'void ComputeAdvice(int*, int, int, int)':
advisor.cpp:34:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < L.size(); i++) {
                  ~~^~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 35
• Subtask 5: 0 / 39