Submission #419929

#	Time	Username	Problem	Language	Result	Execution time	Memory
419929		faresbasbs	Last supper (IOI12_supper)	C++14	8 / 100	41 ms	3812 KiB

advisor

#include <bits/stdc++.h>
#include "advisor.h"
using namespace std;
multiset<pair<int,int>> ms;
int k,lg,pos[100001];
set<int> st[25001];

void rt(int num){
	for(int i = lg-1 ; i >= 0 ; i -= 1){
		if(num & (1<<i)){
			WriteAdvice(1);
		}else{
			WriteAdvice(0);
		}
	}
}

void ComputeAdvice(int *C , int n , int K , int M){
	k = K , lg = ceil(log2(n+1));
	for(int i = 0 ; i < n ; i += 1){
		st[C[i]].insert(i);
		st[i].insert(n);
	}
	for(int i = 0 ; i < k ; i += 1){
		pos[i] = i;
		ms.insert({*st[i].upper_bound(-1),i});
	}
	for(int i = 0 ; i < n ; i += 1){
		if(ms.find({i,C[i]}) != ms.end()){
			ms.erase({i,C[i]});
			ms.insert({*st[C[i]].upper_bound(i),C[i]});
			rt(k);
		}else{
			pair<int,int> bd = *(--ms.end());
			ms.erase(bd);
			rt(pos[bd.second]);
			pos[C[i]] = pos[bd.second];
			ms.insert({*st[C[i]].upper_bound(i),C[i]});
		}
		/*cout << -1 << endl;
		for(auto j : ms){
			cout << j.first << " " << j.second << endl;
		}cout << endl << endl;*/
	}
}

assistant

#include <bits/stdc++.h>
#include "assistant.h"
using namespace std;
int lg2,val[100001];

void Assist(unsigned char *a , int n , int k , int R) {
	lg2 = ceil(log2(n+1));
	for(int i = 0 ; i < k ; i += 1){
		val[i] = i;
	}
	for(int i = 0 ; i < n ; i += 1){
		int num = 0 , num2 = GetRequest();
		for(int j = lg2*i ; j < lg2*(i+1) ; j += 1){
			num = 2*num;
			if(a[j] == 1){
				num += 1;
			}
		}
		if(num == k){
			continue;
		}
		PutBack(val[num]);
		val[num] = num2;
	}
}

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