oj.uz

답안 #602303

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
602303 2022-07-22T21:05:37 Z patrikpavic2 게임 (APIO22_game) C++17
2 / 100
 14 ms 23828 KB 
#include "game.h"
#include <vector>
#include <cstdio>
#define PB push_back
 
using namespace std;
 
const int N = 5e5 + 500;
const int BUK = 100;
 
int n, k, ans;
vector < int > v[N], r[N];
int L[N], R[N], bukL[N], bukR[N], racL[N], racR[N], bio[N], cookie;
 
void init(int _n, int _k) {
	n = _n, k = _k;
	for(int i = 0;i < n;i++)
		L[i] = -1, R[i] = n, bukL[i] = -1, bukR[i] = k;
	for(int i = 0;i < k;i++)
		L[i] = i, R[i] = i, bukL[i] = i / BUK, bukR[i] = i / BUK, racL[i] = 1, racR[i] = 1;
}
 
void buk_noviL(int x, int vr){
	bukL[x] = vr;
	for(int y : v[x]) 
		if(bukL[y] < vr) buk_noviL(y, vr);
}
 
void buk_noviR(int x, int vr){
	bukR[x] = vr;
	for(int y : r[x])
		if(bukR[y] > vr) buk_noviR(y, vr);
}
 
void noviL(int x, int vr){
	L[x] = vr;
	for(int y : v[x]) 
		if(L[y] < vr && bukR[y] <= vr / BUK) noviL(y, vr);
}
 
void stariL(int x){
	if(bio[x] == cookie || racL[x]) return;
	bio[x] = cookie;
	for(int y : r[x]){
		if(bukL[y] < bukL[x]) continue;
		stariL(y); L[x] = max(L[x], L[y]);
	}
	if(bukL[x] == bukR[x]){
		//printf("racL[ %d ] = 1; L[ %d ] = %d\n", x, x, L[x]);
		racL[x] = 1;
	}
}
 
void stariR(int x){
	if(bio[x] == cookie || racR[x]) return;
	bio[x] = cookie;
	for(int y : v[x]){
		if(bukR[y] > bukR[x]) continue;
		stariR(y); R[x] = min(R[x], R[y]);
	}
	if(bukL[x] == bukR[x]) racR[x] = 1;
}

void cistiL(int x){
	if(bio[x] != cookie - 1) return;
	bio[x] = cookie;
	for(int y : r[x]){
		cistiL(y); L[x] = max(L[x], L[y]);
	}
}

void cistiR(int x){
	if(bio[x] != cookie - 1) return;
	bio[x] = cookie;
	for(int y : v[x]){
		cistiR(y); R[x] = min(R[x], R[y]);
	}
}

void noviR(int x, int vr){
	R[x] = vr;
	for(int y : r[x])
		if(R[y] > vr && bukL[y] >= vr / BUK) noviR(y, vr);
}
 
void update(int a){
	if(bukL[a] == bukR[a] && !racL[a]){
		cookie++; stariL(a); 
		cookie++; cistiL(a);
	}
	if(bukL[a] == bukR[a] && !racR[a]){	
		cookie++; stariR(a); 
		cookie++; cistiR(a);
	}
}
 
int add_teleporter(int a, int b) {
	v[a].PB(b), r[b].PB(a);
	if(a == b && a < k) ans = 1;
	if(bukL[b] < bukL[a]) buk_noviL(b, bukL[a]);
	if(bukR[a] > bukR[b]) buk_noviR(a, bukR[b]);
		
	ans |= bukL[a] > bukR[a];
	ans |= bukL[b] > bukR[b];
	if(L[b] < L[a] && bukR[b] <= L[a] / BUK) noviL(b, L[a]);
	if(R[a] > R[b] && bukL[a] >= R[b] / BUK) noviR(a, R[b]);
	update(a); update(b);
	if(a >= k) ans |= L[a] == R[a];
	if(b >= k) ans |= L[b] == R[b];
	ans |= L[a] > R[a];
	ans |= L[b] > R[b];
	/**
	printf("%d --> %d\n", a, b);
	printf("buk[ %d ] = %d %d\n", a, bukL[a], bukR[a]);
	printf("buk[ %d ] = %d %d\n", b, bukL[b], bukR[b]);
	printf("LR [ %d ] = %d %d\n", a, L[a], R[a]);
	printf("LR [ %d ] = %d %d\n", b, L[b], R[b]);	
	**/
	return ans;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23724 KB Output is correct
2 Correct 11 ms 23784 KB Output is correct
3 Correct 11 ms 23760 KB Output is correct
4 Correct 11 ms 23760 KB Output is correct
5 Correct 11 ms 23760 KB Output is correct
6 Correct 11 ms 23760 KB Output is correct
7 Correct 12 ms 23760 KB Output is correct

Subtask #2
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23724 KB Output is correct
2 Correct 11 ms 23784 KB Output is correct
3 Correct 11 ms 23760 KB Output is correct
4 Correct 11 ms 23760 KB Output is correct
5 Correct 11 ms 23760 KB Output is correct
6 Correct 11 ms 23760 KB Output is correct
7 Correct 12 ms 23760 KB Output is correct
8 Correct 12 ms 23828 KB Output is correct
9 Correct 10 ms 23760 KB Output is correct
10 Correct 11 ms 23768 KB Output is correct
11 Correct 12 ms 23780 KB Output is correct
12 Correct 12 ms 23760 KB Output is correct
13 Correct 12 ms 23760 KB Output is correct
14 Correct 14 ms 23760 KB Output is correct
15 Correct 11 ms 23760 KB Output is correct
16 Correct 12 ms 23816 KB Output is correct
17 Incorrect 12 ms 23776 KB Wrong Answer[1]
18 Halted 0 ms 0 KB -

Subtask #3
0.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23724 KB Output is correct
2 Correct 11 ms 23784 KB Output is correct
3 Correct 11 ms 23760 KB Output is correct
4 Correct 11 ms 23760 KB Output is correct
5 Correct 11 ms 23760 KB Output is correct
6 Correct 11 ms 23760 KB Output is correct
7 Correct 12 ms 23760 KB Output is correct
8 Correct 12 ms 23828 KB Output is correct
9 Correct 10 ms 23760 KB Output is correct
10 Correct 11 ms 23768 KB Output is correct
11 Correct 12 ms 23780 KB Output is correct
12 Correct 12 ms 23760 KB Output is correct
13 Correct 12 ms 23760 KB Output is correct
14 Correct 14 ms 23760 KB Output is correct
15 Correct 11 ms 23760 KB Output is correct
16 Correct 12 ms 23816 KB Output is correct
17 Incorrect 12 ms 23776 KB Wrong Answer[1]
18 Halted 0 ms 0 KB -

Subtask #4
0.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23724 KB Output is correct
2 Correct 11 ms 23784 KB Output is correct
3 Correct 11 ms 23760 KB Output is correct
4 Correct 11 ms 23760 KB Output is correct
5 Correct 11 ms 23760 KB Output is correct
6 Correct 11 ms 23760 KB Output is correct
7 Correct 12 ms 23760 KB Output is correct
8 Correct 12 ms 23828 KB Output is correct
9 Correct 10 ms 23760 KB Output is correct
10 Correct 11 ms 23768 KB Output is correct
11 Correct 12 ms 23780 KB Output is correct
12 Correct 12 ms 23760 KB Output is correct
13 Correct 12 ms 23760 KB Output is correct
14 Correct 14 ms 23760 KB Output is correct
15 Correct 11 ms 23760 KB Output is correct
16 Correct 12 ms 23816 KB Output is correct
17 Incorrect 12 ms 23776 KB Wrong Answer[1]
18 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 23724 KB Output is correct
2 Correct 11 ms 23784 KB Output is correct
3 Correct 11 ms 23760 KB Output is correct
4 Correct 11 ms 23760 KB Output is correct
5 Correct 11 ms 23760 KB Output is correct
6 Correct 11 ms 23760 KB Output is correct
7 Correct 12 ms 23760 KB Output is correct
8 Correct 12 ms 23828 KB Output is correct
9 Correct 10 ms 23760 KB Output is correct
10 Correct 11 ms 23768 KB Output is correct
11 Correct 12 ms 23780 KB Output is correct
12 Correct 12 ms 23760 KB Output is correct
13 Correct 12 ms 23760 KB Output is correct
14 Correct 14 ms 23760 KB Output is correct
15 Correct 11 ms 23760 KB Output is correct
16 Correct 12 ms 23816 KB Output is correct
17 Incorrect 12 ms 23776 KB Wrong Answer[1]
18 Halted 0 ms 0 KB -