oj.uz

Submission #58464

# Submission time Handle Problem Language Result Execution time Memory
58464 2018-07-18T00:01:59 Z kingpig9 Last supper (IOI12_supper) C++11
0 / 100
 201 ms 27264 KB 
#include <bits/stdc++.h>
#include "advisor.h"

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
static const int MAXN = 1e5 + 10;

#define debug(...) fprintf(stderr, __VA_ARGS__)
//#define debug(...)
#define fi first
#define se second
#define all(v) (v).begin(), (v).end()
#define fillchar(a, s) memset((a), (s), sizeof(a))

#warning static (advisor)

static int *C, N, K, M;
static vector<int> req[MAXN], rem[MAXN];
static bool has[MAXN];
static int lastrem[MAXN];

static bool message (int nxtreq, int nxtrem) {
	bool msg;
	if (nxtreq == N) {
		msg = 1;
	} else {
		if (nxtrem == N) {
			//bad to remove
			msg = 0;
		} else {
			if (nxtrem < nxtreq) {
				msg = 0;
			} else {
				msg = 1;
			}
		}
	}
	return msg;
}

void ComputeAdvice (int *ccc, int nnn, int kkk, int mmm) {
	C = ccc;
	N = nnn;
	K = kkk;
	M = mmm;

	for (int i = 0; i < N; i++) {
		req[C[i]].push_back(i);
	}
	for (int i = 0; i < N; i++) {
		req[i].push_back(N);
	}

	priority_queue<pii> pq;	//pii(next request, id)
	for (int i = 0; i < K; i++) {
		pq.push(pii(req[i][0], i));
		has[i] = true;
	}

	//there are 2 shelves
	//one of them: x will be rem before x is requested again.
	//best to rem if it's not going to be requested again.


	//so the color is currently here
	//there is some time where it will be requested again.
	//Is it bound to have a removal before this?

	for (int i = 0; i < N; i++) {
		lastrem[i] = N;
	}

	vector<int> ans;
	for (int i = 0; i < N; i++) {
		int x = C[i];
		if (has[x]) {
			ans.push_back(N);	//rem N - useless
		} else {
			int id = pq.top().se;
			pq.pop();
			rem[id].push_back(i);
			lastrem[id] = i;
			ans.push_back(id);
			has[id] = false;

			has[x] = true;
			pq.push(pii(*upper_bound(all(req[x]), i), x));
		}
	}

	for (int i = 0; i < N; i++) {
		rem[i].push_back(N);
	}
	
	for (int i = 0; i < K; i++) {
		bool msg = message(req[i].front(), lastrem[i]);
		WriteAdvice(msg);
	}

	for (int i = 0; i < N; i++) {
		int col = C[i];
		int nxtreq = *upper_bound(all(req[col]), i);
		int nxtrem = lastrem[col];
		//int nxtrem = *upper_bound(all(rem[col], i));	//NOT CORRECT!
		//debug("PUT IN COLOR %d. nxtrem = %d, nxtreq = %d\n", col, nxtrem, nxtreq);
		bool msg = message(nxtreq, nxtrem);
		//debug("msg = %d\n", msg);

		WriteAdvice(msg);
	}
}

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

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
static const int MAXN = 1e5 + 10;

#define debug(...) fprintf(stderr, __VA_ARGS__)
//#define debug(...)
#define fi first
#define se second
#define all(v) (v).begin(), (v).end()
#define fillchar(a, s) memset((a), (s), sizeof(a))

#warning static (assistant)

static unsigned char *A;
static int N, K;
static int cur[MAXN];
static bool has[MAXN];

static void go() {
	priority_queue<pii> pq;
	for (int i = 0; i < K; i++) {
		cur[i] = i;
		has[i] = true;
		pq.emplace(A[i], i);
	}
	A += K;

	for (int i = 0; i < N; i++) {
		//replace it with this
		int req = GetRequest();
		if (has[req]) {
			//debug("HAS %d\n", req);
			continue;
		}
		int ind = pq.top().se;
		int &ref = cur[ind];
		PutBack(ref);
		//debug("replace %d with %d\n", ref, req);
		has[ref] = false;
		pq.pop();
		ref = req;
		pq.emplace(A[i], ind);
		has[req] = true;
	}
}

void Assist (unsigned char *aaa, int nnn, int kkk, int rrr) {
	A = aaa;
	N = nnn;
	K = kkk;
	go();
}

Compilation message

advisor.cpp:17:2: warning: #warning static (advisor) [-Wcpp]
 #warning static (advisor)
  ^~~~~~~

assistant.cpp:17:2: warning: #warning static (assistant) [-Wcpp]
 #warning static (assistant)
  ^~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 9968 KB Output is correct
2 Incorrect 10 ms 10696 KB Output isn't correct - not an optimal way
3 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 12072 KB Output isn't correct - not an optimal way
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 153 ms 23640 KB Output isn't correct - not an optimal way
2 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 13 ms 23640 KB Output isn't correct - not an optimal way
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 39.0

# Verdict Execution time Memory Grader output
1 Incorrect 190 ms 26864 KB Output isn't correct - not an optimal way
2 Incorrect 201 ms 26864 KB Output isn't correct - not an optimal way
3 Incorrect 161 ms 27104 KB Output isn't correct - not an optimal way
4 Incorrect 155 ms 27104 KB Output isn't correct - not an optimal way
5 Incorrect 160 ms 27264 KB Output isn't correct - not an optimal way
6 Incorrect 201 ms 27264 KB Output isn't correct - not an optimal way
7 Incorrect 171 ms 27264 KB Output isn't correct - not an optimal way
8 Incorrect 169 ms 27264 KB Output isn't correct - not an optimal way
9 Incorrect 153 ms 27264 KB Output isn't correct - not an optimal way
10 Correct 142 ms 27264 KB Output is correct - 125000 bits used