#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl
#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)
template<typename T>
void amin(T &a, T b) {
a = min(a,b);
}
template<typename T>
void amax(T &a, T b) {
a = max(a,b);
}
#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif
/*
*/
const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;
#include "doll.h"
void create_circuit(int m, std::vector<int> a) {
// int N = A.size();
// std::vector<int> C(M + 1);
// C[0] = -1;
// for (int i = 1; i <= M; ++i) {
// C[i] = 1;
// }
// std::vector<int> X(N), Y(N);
// for (int k = 0; k < N; ++k) {
// X[k] = Y[k] = A[k];
// }
// answer(C, X, Y);
int n = sz(a);
vector<int> b(m+1);
vector<int> pos[m+1];
rep(i,n) pos[a[i]].pb(i);
vector<int> root(m+1);
vector<int> sx(1), sy(1), flipped;
int switch_ptr = 1;
rep1(i,m){
if(sz(pos[i]) <= 1) conts;
root[i] = -switch_ptr;
sx.pb(0), sy.pb(0);
switch_ptr++;
}
b[0] = a[0];
rep(i,n){
b[a[i]] = root[a[i]];
}
ll last_guy = inf2, last_type = inf2;
vector<pll> pending;
rep1(x,m){
if(pos[x].empty()) conts;
auto &p = pos[x];
int c = sz(p);
if(c == 1){
ll i = p[0];
if(i+1 < n){
b[x] = a[i+1];
}
else{
last_guy = x;
}
conts;
}
int siz = 1;
while(siz < c) siz <<= 1;
queue<pll> q;
q.push({root[x],0});
ll depth = __lg(siz)-1;
while(!q.empty()){
auto [u,d] = q.front();
q.pop();
if(d > depth) conts;
sx[-u] = -switch_ptr;
sx.pb(0), sy.pb(0);
switch_ptr++;
sy[-u] = -switch_ptr;
sx.pb(0), sy.pb(0);
switch_ptr++;
q.push({sx[-u],d+1});
q.push({sy[-u],d+1});
}
while(sz(flipped) < sz(sx)){
flipped.pb(0);
}
rep1(iter,siz){
int ptr = root[x];
rep1(d,depth){
flipped[-ptr] ^= 1;
if(flipped[-ptr]){
ptr = sx[-ptr];
}
else{
ptr = sy[-ptr];
}
}
if(iter <= c){
ll i = p[iter-1];
if(i+1 < n){
ll nxt = a[i+1];
flipped[-ptr] ^= 1;
if(flipped[-ptr]){
sx[-ptr] = nxt;
}
else{
sy[-ptr] = nxt;
}
}
else{
last_guy = ptr;
flipped[-ptr] ^= 1;
if(flipped[-ptr]){
last_type = 0;
}
else{
last_type = 1;
}
}
}
else{
ll nxt = 0;
if(iter < siz){
nxt = root[x];
flipped[-ptr] ^= 1;
if(flipped[-ptr]){
sx[-ptr] = nxt;
}
else{
sy[-ptr] = nxt;
}
}
else{
flipped[-ptr] ^= 1;
pending.pb({root[x],ptr});
}
}
}
// rep1(iter,siz){
// ll ptr = 1;
// while(ptr < siz/2){
// flipped[ptr] ^= 1;
// if(flipped[ptr]){
// ptr = ptr*2;
// }
// else{
// ptr = ptr*2+1;
// }
// }
// ll nxt = 0;
// if(iter < c){
// nxt = 1;
// }
// else if(iter < siz){
// nxt = -1;
// }
// else{
// nxt = 0;
// }
// flipped[ptr] ^= 1;
// if(flipped[ptr]){
// sx[ptr] = nxt;
// }
// else{
// sy[ptr] = nxt;
// }
// }
}
assert(accumulate(all(flipped),0ll) == 0);
pending.pb({0,0});
if(last_type == 0){
sx[-last_guy] = pending.front().ff;
}
else if(last_type == 1){
sy[-last_guy] = pending.front().ff;
}
else{
b[last_guy] = pending.front().ff;
}
rep(i,sz(pending)-1){
sy[-pending[i].ss] = pending[i+1].ff;
}
rep1(i,sz(sx)-1){
assert(sx[i] >= -switch_ptr);
assert(sy[i] >= -switch_ptr);
assert(sx[i] <= m);
assert(sy[i] <= m);
}
sx.erase(sx.begin());
sy.erase(sy.begin());
while(sz(sx) <= 2*n){
sx.pb(0);
sy.pb(0);
}
// assert(sz(sx) <= 2*n);
answer(b,sx,sy);
// rep1(i,siz/2-1){
// sx[i] = -(i*2);
// sy[i] = -(i*2+1);
// }
// rep1(iter,siz){
// ll ptr = 1;
// while(ptr < siz/2){
// flipped[ptr] ^= 1;
// if(flipped[ptr]){
// ptr = ptr*2;
// }
// else{
// ptr = ptr*2+1;
// }
// }
// ll nxt = 0;
// if(iter < n){
// nxt = 1;
// }
// else if(iter < siz){
// nxt = -1;
// }
// else{
// nxt = 0;
// }
// flipped[ptr] ^= 1;
// if(flipped[ptr]){
// sx[ptr] = nxt;
// }
// else{
// sy[ptr] = nxt;
// }
// }
// sx.erase(sx.begin());
// sy.erase(sy.begin());
// answer(b,sx,sy);
// vector<int> cnt(m+1);
// rep(i,n) cnt[a[i]]++;
// rep(i,m+1){
// if(cnt[i] == 1){
// a.pb(i);
// }
// }
// auto on = n;
// n = sz(a);
// b[0] = a[0];
// vector<int> switch_id(m+1,-1); // trigger i is connected to which switch?
// int ptr = 1;
// rep(i,n){
// int x = a[i];
// if(switch_id[x] == -1){
// switch_id[x] = ptr;
// b[x] = -ptr;
// sx.pb(0);
// sy.pb(0);
// if(i+1 < on){
// sx[ptr] = a[i+1];
// }
// else if(i+1 < n){
// sx[ptr] = -switch_id[a[i+1]];
// }
// ptr++;
// }
// else{
// b[x] = -switch_id[x];
// if(i+1 < on){
// sy[switch_id[x]] = a[i+1];
// }
// else if(i+1 < n){
// sy[switch_id[x]] = -switch_id[a[i+1]];
// }
// }
// }
// sx.erase(sx.begin());
// sy.erase(sy.begin());
// debug(b);
// debug(sx);
// debug(sy);
// answer(b,sx,sy);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
