Submission #1012105

#	Time	Username	Problem	Language	Result	Execution time	Memory
1012105		AmirAli_H1	Last supper (IOI12_supper)	C++17	100 / 100	45 ms	12504 KiB

advisor

// In the name of Allah

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

typedef		long long int			ll;
typedef		long double				ld;
typedef		pair<int, int>			pii;
typedef		pair<ll, ll>			pll;
typedef		complex<ld>				cld;

#define		all(x)					(x).begin(),(x).end()
#define		len(x)					((ll) (x).size())
#define		F						first
#define		S						second
#define		pb						push_back
#define		sep						' '
#define		endl					'\n'
#define		Mp						make_pair
#define		kill(x)					cout << x << '\n', exit(0)
#define		set_dec(x)				cout << fixed << setprecision(x);
#define		file_io(x,y)			freopen(x, "r", stdin); freopen(y, "w", stdout);

static int n, k, m;
const static int maxn = 2e5 + 7;
static int A[maxn], val[maxn], ind[maxn];
static int M[maxn], res[maxn];
static priority_queue<pii> qu;
static int mark[maxn];

void WriteAdvice(unsigned char a);

void ComputeAdvice(int C[], int Nx, int Kx, int Mx) {
	n = Nx; k = Kx; m = Mx;
	n += k;
	
	for (int i = 0; i < k; i++) A[i] = i;
	for (int i = k; i < n; i++) A[i] = C[i - k];
	
	fill(ind, ind + n, n);
	for (int i = n - 1; i >= 0; i--) {
		val[i] = ind[A[i]];
		ind[A[i]] = i;
	}
	
	fill(mark, mark + n, 0);
	while (!qu.empty()) qu.pop();
	fill(M, M + n, -1); fill(res, res + n, 1);
	for (int i = 0; i < k; i++) {
		qu.push(Mp(val[i], i));
		mark[i] = 1; M[A[i]] = i;
	}
	for (int i = k; i < n; i++) {
		while (!qu.empty()) {
			auto f = qu.top(); int r = f.S;
			if (mark[r]) break;
			else qu.pop();
		}
		
		int j = M[A[i]];
		if (j != -1) {
			mark[j] = 0;
		}
		else {
			auto f = qu.top(); qu.pop();
			int r = f.S; mark[r] = 0;
			res[r] = 0; M[A[r]] = -1;
		}
		qu.push(Mp(val[i], i));
		mark[i] = 1; M[A[i]] = i;
	}
	
	for (int i = 0; i < n; i++) {
		if (res[i]) WriteAdvice(1);
		else WriteAdvice(0);
	}
}

assistant

// In the name of Allah

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

typedef		long long int			ll;
typedef		long double				ld;
typedef		pair<int, int>			pii;
typedef		pair<ll, ll>			pll;
typedef		complex<ld>				cld;

#define		all(x)					(x).begin(),(x).end()
#define		len(x)					((ll) (x).size())
#define		F						first
#define		S						second
#define		pb						push_back
#define		sep						' '
#define		endl					'\n'
#define		Mp						make_pair
#define		kill(x)					cout << x << '\n', exit(0)
#define		set_dec(x)				cout << fixed << setprecision(x);
#define		file_io(x,y)			freopen(x, "r", stdin); freopen(y, "w", stdout);

static int n, k, m;
const static int maxn = 2e5 + 7;
static int A[maxn], M[maxn];
static vector<int> ls;
static int mark[maxn];

void PutBack(int T);

int GetRequest();

void Assist(unsigned char res[], int Nx, int Kx, int Rx) {
	n = Nx; k = Kx; m = Rx;
	n += k;
	
	fill(mark, mark + n, 0); ls.clear();
	fill(M, M + n, -1);
	for (int i = 0; i < k; i++) {
		if (res[i] == 0) {
			ls.pb(i); mark[i] = 1;
		}
		A[i] = i; M[A[i]] = i;
	}
	
	for (int i = k; i < n; i++) {
		while (!ls.empty()) {
			int r = ls.back();
			if (mark[r]) break;
			else ls.pop_back();
		}
		
		A[i] = GetRequest();
		if (M[A[i]] != -1) {
			int j = M[A[i]]; mark[j] = 0;
			M[A[i]] = -1;
		}
		else {
			int j = ls.back();
			ls.pop_back(); mark[j] = 0;
			M[A[j]] = -1; PutBack(A[j]);
		}
		if (res[i] == 0) {
			ls.pb(i); mark[i] = 1;
		}
		M[A[i]] = i;
	}
}

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