Submission #601997

#	Time	Username	Problem	Language	Result	Execution time	Memory
601997		patrikpavic2	Game (APIO22_game)	C++17	2 / 100	14 ms	23796 KiB

game

#include "game.h"
#include <vector>
#include <cstdio>
#define PB push_back

using namespace std;

const int N = 5e5 + 500;

int n, k, ans;
vector < int > v[N], r[N];
int L[N], R[N];

void init(int _n, int _k) {
	n = _n, k = _k;
	for(int i = 0;i < n;i++)
		L[i] = -1, R[i] = n;
	for(int i = 0;i < k;i++)
		L[i] = i, R[i] = i;
}

void noviL(int x, int vr){
	L[x] = vr;
	for(int y : v[x]) 
		if(L[y] < vr) noviL(y, vr);
}

void noviR(int x, int vr){
	R[x] = vr;
	for(int y : r[x])
		if(R[y] > vr) noviR(y, vr);
}

int add_teleporter(int a, int b) {
	if(a == b && a < k) ans = 1;
	if(L[b] < L[a]) noviL(b, L[a]);
	if(R[a] > R[b]) noviR(a, R[b]);
	ans |= L[a] > R[a];
	ans |= L[b] > R[b];
	if(a >= k) ans |= L[a] == R[a];
	if(b >= k) ans |= L[b] == R[b];
	return ans;
}

• Subtask 1: 2 / 2
• Subtask 2: 0 / 10
• Subtask 3: 0 / 18
• Subtask 4: 0 / 30
• Subtask 5: 0 / 40