This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/*
DavitMarg
In a honky-tonk,
Down in Mexico
*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(), v.end()
#define fastIO ios::sync_with_stdio(false); cin.tie(0)
using namespace std;
const int N = 200005;
#ifndef death
#include "doll.h"
#endif // ! death
#ifdef death
void answer(vector<int> c, vector<int> x, vector<int> y)
{
for (int i = 0; i < c.size(); i++)
cout << c[i] << " ";
cout << endl;
for (int i = 0; i < x.size(); i++)
cout << x[i] << " : " << y[i] << endl;
}
#endif
int bitcount(int x)
{
int res = 0;
while (x)
{
res += x % 2;
x /= 2;
}
return res;
}
int n, k;
vector<int> pos[N], p, X, Y,nxt;
int add()
{
k++;
X.push_back(0);
Y.push_back(0);
return k;
}
int build(int st,int d,int val, int cnt, int x)
{
int v = k;
if (cnt > 1)
{
X[v - 1] = -add();
build(st, d + 1, val, cnt / 2, x);
Y[v - 1] = -add();
return build(st, d + 1, val, cnt / 2, x + (1 << d));
}
else
{
int x1 = x;
int x2 = x + (1 << d);
if (x1 < pos[val].size())
X[v - 1] = pos[val][pos[val].size() - 1 - x1];
else
X[v - 1] = -st;
if (x2 < pos[val].size())
Y[v - 1] = pos[val][pos[val].size() - 1 - x2];
else
Y[v - 1] = -st;
}
return 0;
}
void solve(int val)
{
if (pos[val].empty())
return;
if (pos[val].size() == 1)
{
nxt[val] = pos[val][0];
return;
}
for(int i=0;i<30;i++)
if ((1 << i) >= pos[val].size())
{
nxt[val] = -add();
build(k, 0, val, (1 << i) / 2, 0);
break;
}
}
void create_circuit(int M, vector<int> A)
{
n = M;
p = A;
p.PB(0);
nxt.resize(n + 1);
for (int i = p.size() - 2; i >= 0; i--)
pos[p[i]].push_back(p[i+1]);
for (int i = 1; i <= n; i++)
solve(i);
nxt[0] = p[0];
answer(nxt, X, Y);
}
#ifdef death
int main()
{
fastIO;
int nn;
vector<int> aa;
cin >> nn >> nn;
for (int i = 1; i <= nn; i++)
{
int x;
cin >> x;
aa.push_back(x);
}
create_circuit(nn, aa);
return 0;
}
#endif
/*
1 5
1 1 1 1 1
*/
Compilation message (stderr)
doll.cpp: In function 'int build(int, int, int, int, int)':
doll.cpp:85:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
85 | if (x1 < pos[val].size())
| ~~~^~~~~~~~~~~~~~~~~
doll.cpp:89:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
89 | if (x2 < pos[val].size())
| ~~~^~~~~~~~~~~~~~~~~
doll.cpp: In function 'void solve(int)':
doll.cpp:108:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
108 | if ((1 << i) >= pos[val].size())
| ~~~~~~~~~^~~~~~~~~~~~~~~~~~
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