oj.uz

Submission #390142

# Submission time Handle Problem Language Result Execution time Memory
390142 2021-04-15T12:44:04 Z AriaH Tropical Garden (IOI11_garden) C++11
100 / 100
 142 ms 36896 KB 
#include "garden.h"
#include "gardenlib.h"
#include<bits/stdc++.h>
using namespace std;

const int N = 5e5 + 10;

int deg[N], Mn[N], F[N], D[N], n, Res[N];

bool v[N];

vector < int > E[N];
 
void DFS(int a, int d)
{
	int i;
	D[a] = d;
	for (i = 0; i < (int)E[a].size(); i++){
		if (D[E[a][i]] == -1)DFS(E[a][i], d + 1);
	}
}
 
int QQ, DD[N];

struct Query{
	int a, num;
	bool operator<(const Query &p)const{
		return a < p.a;
	}
}w[N];
 
int S[N];
 
void Do(int a){
	int i, x, c = 0, cnt = 0, pv;
	for (i = 0; i < 2 * n; i++){
		D[i] = -1;
		v[i] = false;
		S[i] = 0;
	}
	DFS(a, 0);
	for (i = 0; i < n; i++){
		if (D[i] != -1){
			DD[cnt++] = D[i];
		}
	}
	sort(DD, DD + cnt);
	x = a;
	while (!v[x]){
		c++;
		v[x] = true;
		x = F[x];
	}
	if (x != a){
		c = 1000000009;
	}
	pv = 0;
	for (i = 0; i < QQ; i++){
		while (pv < cnt && DD[pv] <= w[i].a){
			S[DD[pv] % c]++;
			pv++;
		}
		if (w[i].a%c > 2 * n)continue;
		Res[w[i].num] += S[w[i].a%c];
	}
}
 
void Add(int a, int b, int i){
	if (Mn[a] == i){
		if (Mn[b] != i || deg[b] == 1)F[a] = b;
		else F[a] = b + n;
	}
	else if (F[a + n] == -1){
		if (Mn[b] != i || deg[b] == 1)F[a + n] = b;
		else F[a + n] = b + n;
	}
}
 
void count_routes(int N2, int M, int P, int R[][2], int Q, int G[])
{
	int i, a, b;
	n = N2;
	QQ = Q;
	for (i = 0; i < Q; i++){
		w[i].a = G[i];
		w[i].num = i;
	}
	sort(w, w + Q);
	for (i = 0; i < 2 * N2; i++)F[i] = -1;
	for (i = 0; i < M; i++){
		a = R[i][0], b = R[i][1];
		deg[a]++, deg[b]++;
		if (!Mn[a])Mn[a] = i + 1;
		if (!Mn[b])Mn[b] = i + 1;
	}
	for (i = 0; i < M; i++){
		a = R[i][0], b = R[i][1];
		Add(a, b, i+1);
		Add(b, a, i+1);
	}
	for (i = 0; i < N2; i++){
		E[F[i]].push_back(i);
		if (deg[i]>1)E[F[i + N2]].push_back(i + N2);
	}
	Do(P);
	if (deg[P] != 1)Do(P + N2);
	for (i = 0; i < Q; i++)answer(Res[i]);
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12276 KB Output is correct
2 Correct 9 ms 12272 KB Output is correct
3 Correct 9 ms 12192 KB Output is correct
4 Correct 8 ms 12060 KB Output is correct
5 Correct 8 ms 12084 KB Output is correct
6 Correct 8 ms 12236 KB Output is correct
7 Correct 8 ms 12056 KB Output is correct
8 Correct 8 ms 12108 KB Output is correct
9 Correct 10 ms 12200 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12276 KB Output is correct
2 Correct 9 ms 12272 KB Output is correct
3 Correct 9 ms 12192 KB Output is correct
4 Correct 8 ms 12060 KB Output is correct
5 Correct 8 ms 12084 KB Output is correct
6 Correct 8 ms 12236 KB Output is correct
7 Correct 8 ms 12056 KB Output is correct
8 Correct 8 ms 12108 KB Output is correct
9 Correct 10 ms 12200 KB Output is correct
10 Correct 8 ms 12056 KB Output is correct
11 Correct 17 ms 14252 KB Output is correct
12 Correct 29 ms 15692 KB Output is correct
13 Correct 62 ms 30144 KB Output is correct
14 Correct 79 ms 23876 KB Output is correct
15 Correct 121 ms 24556 KB Output is correct
16 Correct 110 ms 21476 KB Output is correct
17 Correct 75 ms 20388 KB Output is correct
18 Correct 31 ms 15668 KB Output is correct
19 Correct 78 ms 23772 KB Output is correct
20 Correct 112 ms 24472 KB Output is correct
21 Correct 88 ms 21416 KB Output is correct
22 Correct 82 ms 20312 KB Output is correct
23 Correct 89 ms 24964 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12276 KB Output is correct
2 Correct 9 ms 12272 KB Output is correct
3 Correct 9 ms 12192 KB Output is correct
4 Correct 8 ms 12060 KB Output is correct
5 Correct 8 ms 12084 KB Output is correct
6 Correct 8 ms 12236 KB Output is correct
7 Correct 8 ms 12056 KB Output is correct
8 Correct 8 ms 12108 KB Output is correct
9 Correct 10 ms 12200 KB Output is correct
10 Correct 8 ms 12056 KB Output is correct
11 Correct 17 ms 14252 KB Output is correct
12 Correct 29 ms 15692 KB Output is correct
13 Correct 62 ms 30144 KB Output is correct
14 Correct 79 ms 23876 KB Output is correct
15 Correct 121 ms 24556 KB Output is correct
16 Correct 110 ms 21476 KB Output is correct
17 Correct 75 ms 20388 KB Output is correct
18 Correct 31 ms 15668 KB Output is correct
19 Correct 78 ms 23772 KB Output is correct
20 Correct 112 ms 24472 KB Output is correct
21 Correct 88 ms 21416 KB Output is correct
22 Correct 82 ms 20312 KB Output is correct
23 Correct 89 ms 24964 KB Output is correct
24 Correct 9 ms 12108 KB Output is correct
25 Correct 18 ms 14380 KB Output is correct
26 Correct 29 ms 15752 KB Output is correct
27 Correct 63 ms 30236 KB Output is correct
28 Correct 80 ms 23828 KB Output is correct
29 Correct 116 ms 24660 KB Output is correct
30 Correct 87 ms 21620 KB Output is correct
31 Correct 75 ms 20424 KB Output is correct
32 Correct 29 ms 15708 KB Output is correct
33 Correct 82 ms 23844 KB Output is correct
34 Correct 142 ms 24644 KB Output is correct
35 Correct 86 ms 21488 KB Output is correct
36 Correct 82 ms 20452 KB Output is correct
37 Correct 83 ms 24900 KB Output is correct
38 Correct 92 ms 36896 KB Output is correct