Submission #23781

#	Time	Username	Problem	Language	Result	Execution time	Memory
23781		Hiasat	Last supper (IOI12_supper)	C++14	20 / 100	479 ms	27120 KiB

advisor

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

using namespace std;

void ComputeAdvice(int *C, int N, int K, int M) {
	int bits = M/N;
	bits = min(bits,17);
	for (int i = 0; i < N; ++i){
		for(int k = bits-1; k >= 0 ; k--){
			bool r = C[i]&(1<<k);
			WriteAdvice(r);
		}
	}
}

assistant

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

using namespace std;

typedef pair<int,int> pii;

vector<int> nxt[100001];

int n , k , r;

bool have[100001];

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;
}
void Assist(unsigned char *A, int N, int K, int R) {
	n = N;
	k = K;
	r = R;
	int bits = min(17,R/N);
	for (int i = 0; i < N; ++i) {
		int num = 0;
		for (int k = bits-1 ; k >= 0 ; k--) {
			num += A[i * bits + ((bits-1) - k)] * (1 << k);
		}
		nxt[num].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 = GetRequest();
		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);
		PutBack(src.second);
		have[src.second] = 0;
		have[req] = 1;
		q.insert(make_pair(go(req,i),req));
	}

}

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