Submission #1059133

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059133		AmirAli_H1	Prisoner Challenge (IOI22_prison)	C++17	80 / 100	7 ms	1628 KiB

prison

// In the name of Allah

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

typedef			long long				ll;
typedef			pair<int, int>			pii;
typedef			pair<ll, ll>			pll;

#define			F						first
#define			S						second
#define			all(x)					(x).begin(),(x).end()
#define			len(x)					((ll) (x).size())
#define			Mp						make_pair
#define			pb						push_back
#define			endl					'\n'
#define			sep						' '

int n;
vector<vector<int>> ans;

int get_num(int x, int R) {
	int T = (7 - R);
	while (T--) x /= 3;
	return (x % 3);
}

int Rt(int x) {
	if (x == 0) return -1;
	else return -2;
}

int Nt(int x) {
	if (x == 0) return -2;
	else return -1;
}

vector<vector<int>> devise_strategy(int N) {
	n = N; ans.resize(23);
	for (int i = 0; i < 23; i++) {
		ans[i].resize(n + 1);
		for (int j = 0; j <= n; j++) {
			int x = (i + 2) / 3;
			if (j == 0) ans[i][j] = (x % 2);
			else {
				if (x != 0) {
					int R1 = (i + 2) % 3, R2 = get_num(j, x - 1);
					if (x == 8) {
						if (R2 == 0) ans[i][j] = Rt(ans[i][0]);
						else ans[i][j] = Nt(ans[i][0]);
					}
					else {
						if (R2 < R1) ans[i][j] = Rt(ans[i][0]);
						else if (R1 < R2) ans[i][j] = Nt(ans[i][0]);
						else if (x == 7) {
							int Rx = get_num(j, x);
							if (Rx == 0) ans[i][j] = Rt(ans[i][0]);
							else if (Rx == 2) ans[i][j] = Nt(ans[i][0]);
							else ans[i][j] = (x * 3 + 1);
						}
						else ans[i][j] = (x * 3 + 1) + get_num(j, x);
					}
				}
				else ans[i][j] = (x * 3 + 1) + get_num(j, x);
			}
		}
	}
	return ans;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 70 / 90