oj.uz

Submission #236847

# Submission time Handle Problem Language Result Execution time Memory
236847 2020-06-03T15:01:41 Z kostia244 Tropical Garden (IOI11_garden) C++17
69 / 100
 5000 ms 39744 KB 
#include "garden.h"
#include "gardenlib.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 300500, mlg = 30;
int up[maxn][mlg], cnt[maxn];
void count_routes(int n, int m, int P, int R[][2], int Q, int G[]) {
	memset(cnt, 0, sizeof cnt);
	memset(up, -1, sizeof up);
	for(int i = 0; i < m; i++) {
		int f = R[i][0], t = R[i][1];
		//cout << f << " " << t << " " << i << '\n';
		if(cnt[f] < 2) up[2*f + cnt[f]][0] = 2*t + (cnt[t]==0);//, cout << 2*f + cnt[f] << " -- " << 2*t + (cnt[t]==0) << '\n';
		if(cnt[t] < 2) up[2*t + cnt[t]][0] = 2*f + (cnt[f]==0);//, cout << 2*t + cnt[t] << " -- " << 2*f + (cnt[f]==0) << '\n';
		cnt[f]++, cnt[t]++;
	}
	for(int i = 0; i < 2*n; i++) if(up[i][0] < 0) up[i][0] = up[i^1][0];
	for(int i = 1; i < mlg; i++)
		for(int j = 0; j < 2*n; j++)
			up[j][i] = up[up[j][i-1]][i-1];
	//for(int i = 0; i < 2*n; i++) cout << i << " = " << up[i][0] << "\n";
	for(int I = 0; I < Q; I++) {
		//cout << P << " " << G[I] << '\n';
		int ans = 0;
		for(int i = 0; i < 2*n; i+=2) cnt[i] = i;
		for(int i = 0; i < mlg; i++) {
			if(!((G[I]>>i)&1)) continue;
			for(int j = 0; j < 2*n; j+=2) {
				cnt[j] = up[cnt[j]][i];
			}
		}
		for(int i = 0; i < 2*n; i+=2) ans += cnt[i] == 2*P || cnt[i] == 2*P+1;
		answer(ans);
	}
}

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 36864 KB Output is correct
2 Correct 23 ms 36864 KB Output is correct
3 Correct 24 ms 36864 KB Output is correct
4 Correct 23 ms 36736 KB Output is correct
5 Correct 23 ms 36864 KB Output is correct
6 Correct 23 ms 36864 KB Output is correct
7 Correct 23 ms 36864 KB Output is correct
8 Correct 25 ms 36864 KB Output is correct
9 Correct 25 ms 36864 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 36864 KB Output is correct
2 Correct 23 ms 36864 KB Output is correct
3 Correct 24 ms 36864 KB Output is correct
4 Correct 23 ms 36736 KB Output is correct
5 Correct 23 ms 36864 KB Output is correct
6 Correct 23 ms 36864 KB Output is correct
7 Correct 23 ms 36864 KB Output is correct
8 Correct 25 ms 36864 KB Output is correct
9 Correct 25 ms 36864 KB Output is correct
10 Correct 25 ms 36864 KB Output is correct
11 Correct 33 ms 37248 KB Output is correct
12 Correct 52 ms 37504 KB Output is correct
13 Correct 116 ms 38392 KB Output is correct
14 Correct 147 ms 39544 KB Output is correct
15 Correct 157 ms 39744 KB Output is correct
16 Correct 125 ms 39416 KB Output is correct
17 Correct 107 ms 39544 KB Output is correct
18 Correct 53 ms 37880 KB Output is correct
19 Correct 146 ms 39544 KB Output is correct
20 Correct 151 ms 39672 KB Output is correct
21 Correct 122 ms 39540 KB Output is correct
22 Correct 114 ms 39416 KB Output is correct
23 Correct 188 ms 39672 KB Output is correct

Subtask #3
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 36864 KB Output is correct
2 Correct 23 ms 36864 KB Output is correct
3 Correct 24 ms 36864 KB Output is correct
4 Correct 23 ms 36736 KB Output is correct
5 Correct 23 ms 36864 KB Output is correct
6 Correct 23 ms 36864 KB Output is correct
7 Correct 23 ms 36864 KB Output is correct
8 Correct 25 ms 36864 KB Output is correct
9 Correct 25 ms 36864 KB Output is correct
10 Correct 25 ms 36864 KB Output is correct
11 Correct 33 ms 37248 KB Output is correct
12 Correct 52 ms 37504 KB Output is correct
13 Correct 116 ms 38392 KB Output is correct
14 Correct 147 ms 39544 KB Output is correct
15 Correct 157 ms 39744 KB Output is correct
16 Correct 125 ms 39416 KB Output is correct
17 Correct 107 ms 39544 KB Output is correct
18 Correct 53 ms 37880 KB Output is correct
19 Correct 146 ms 39544 KB Output is correct
20 Correct 151 ms 39672 KB Output is correct
21 Correct 122 ms 39540 KB Output is correct
22 Correct 114 ms 39416 KB Output is correct
23 Correct 188 ms 39672 KB Output is correct
24 Correct 26 ms 36780 KB Output is correct
25 Correct 830 ms 37372 KB Output is correct
26 Correct 1539 ms 37880 KB Output is correct
27 Execution timed out 5064 ms 38392 KB Time limit exceeded
28 Halted 0 ms 0 KB -