Submission #269598

#	Time	Username	Problem	Language	Result	Execution time	Memory
269598		PeppaPig	최후의 만찬 (IOI12_supper)	C++14	0 / 100	568 ms	148608 KiB

advisor

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

#define pii pair<int, int>
#define x first
#define y second

using namespace std;

static const int N = 1e5 + 5;

static int t[N];

static void update(int x, int k) {
    for(int i = x + 1; i < N; i += i & -i)
        t[i] += k;
}

static int query(int x, int ret = 0) {
    for(int i = x + 1; i; i -= i & -i)
        ret += t[i];
    return ret;
}

static queue<int> col[N];

void ComputeAdvice(int *C, int n, int k, int M) {
    for(int i = 0; i < n; i++) col[C[i]].emplace(i);
    for(int i = 0; i < n; i++) col[i].emplace(1e9);

    priority_queue<pii> Q;
    for(int i = 0; i < k; i++) update(i, 1), Q.emplace(col[i].front(), i);
    for(int i = 0; i < n; i++) {
        col[C[i]].pop();
        if(query(C[i]) - query(C[i] - 1) == 1)
            for(int j = 0; j < 15; j++) WriteAdvice(0);
        else {
            pii now = Q.top(); Q.pop();
            int idx = query(now.y); 

            for(int j = 0; j < 15; j++) WriteAdvice(idx >> j & 1);
            Q.emplace(col[C[i]].front(), C[i]);

            update(now.y, -1), update(C[i], 1);
        }
    }
}

assistant

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

using namespace std;

static const int N = 1e5 + 5;

static int t[N];

static void update(int x, int k) {
    for(int i = x + 1; i < N; i += i & -i)
        t[i] += k;
}

static int query(int x, int ret = 0) {
    for(int i = x + 1; i; i -= i & -i)
        ret += t[i];
    return ret;
}

void Assist(unsigned char *A, int n, int k, int R) {
    for(int i = 0; i < k; i++) update(i, 1);
    for(int i = 0; i < n; i++) {
        int now = GetRequest();
        if(query(now) - query(now - 1) == 1) continue;
        
        int idx = 0;
        for(int j = 15 * i; j < 15 * (i + 1); j++)
            if(A[j] == 1) idx += (1 << (j - 15 * i));
        
        int l = 0, r = n - 1;
        while(l < r) {
            int mid = (l + r) >> 1;
            if(query(mid) >= idx) r = mid;
            else l = mid + 1;
        }

        PutBack(r);
        update(r, -1), update(now, 1);
    }
}

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