이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "prison.h"
#include <bits/stdc++.h>
//#pragma GCC optimize("O1,O2,O3,Ofast,unroll-loops")
#define ll long long
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define o cout<<"BUG"<<endl;
#define FOR(i, j, n) for(int j = i; j < n; ++j)
#define forn(i, j, n) for(int j = i; j <= n; ++j)
#define nfor(i, j, n) for(int j = n; j >= i; --j)
#define all(v) v.begin(), v.end()
#define ld long double
#define ull unsigned long long
using namespace std;
const int maxn=2e5+10,LOG=17,mod=1e9+7;
int block = 650, timer = 0;
const double eps = 1e-9;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define bt(i) (1 << (i))
//#define int ll
const long long inf=2e18;
#define y1 yy
#define pii pair <int, int>
int etot(int x)
{
return (x == 0 ? -1 : -2);
}
int oppo(int x)
{
return (x == 0 ? -2 : -1);
}
pii seg(int x, int n)
{
int l = 1;
int r = 5000;
forn(1, i, n)
{
l++;
r--;
int m1 = l + (r - l) / 3;
int m2 = r - (r - l) / 3;
if(x <= m1)
{
r = m1;
}
else
if(m1 < x && x <= m2)
{
l = m1+1;
r = m2;
}
else
{
l = m2+1;
}
}
return {l, r};
}
int to(int x, int n)
{
int l = 1;
int r = 5000;
int last = 0;
forn(1, i, n)
{
l++;
r--;
int m1 = l + (r - l) / 3;
int m2 = r - (r - l) / 3;
if(x <= m1)
{
last = 0;
r = m1;
}
else
if(m1 < x && x <= m2)
{
last = 1;
l = m1+1;
r = m2;
}
else
{
last = 2;
l = m2+1;
}
}
return last;
}
vector <vector <int> > devise_strategy(int n)
{
vector <vector <int> > turn(21);
forn(0, i, 20)
{
turn[i].assign(n+1, 0);
}
turn[0][0] = 0;
forn(1, x, n)
{
if(x == 1)
turn[0][x] = -1;
else
if(x == 5000)
turn[0][x] = -2;
else
turn[0][x] = 1+to(x, 1);
}
forn(1, i, 18)
{
int iter = (i - 1) / 3+1;
turn[i][0] = (iter % 2 == 1 ? 1 : 0);
forn(1, x, n)
{
pii ret = seg(x, iter);
int l = ret.f;
int r = ret.s;
int was = to(x, iter);
// if(i == 1 && x == 189) cout << was << " " << l << " " << r << " " << iter << endl;
int poin = (i - 1) % 3;
if(was < poin)
{
turn[i][x] = etot(turn[i][0]);
continue;
}
if(poin < was)
{
turn[i][x] = oppo(turn[i][0]);
continue;
}
if(x <= l)
{
turn[i][x] = etot(turn[i][0]);
continue;
}
if(r <= x)
{
turn[i][x] = oppo(turn[i][0]);
continue;
}
if(iter == 6)
{
l++;
r--;
int mid = (l + r) / 2;
if(x <= mid)
{
turn[i][x] = 19;
}
else
{
turn[i][x] = 20;
}
continue;
}
int kuda = to(x, iter+1);
// if(i == 1 && x == 189)
// cout << " KUDA " << kuda << endl;
turn[i][x] = iter*3+1+kuda;
}
}
turn[19][0] = (turn[18][0]^1);
turn[20][0] = turn[19][0];
forn(1, x, n)
{
pii ret = seg(x, 6);
int l = ret.f + 1;
int r = ret.s - 1;
int mid = (l + r) / 2;
if(x <= l)
{
turn[19][x] = etot(turn[19][0]);
}
else
if(mid <= x)
{
turn[19][x] = oppo(turn[19][0]);
}
if(x <= mid+1)
{
turn[20][x] = etot(turn[20][0]);
}
else
{
turn[20][x] = oppo(turn[20][0]);
}
}
return turn;
}
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