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Submission #395928

# Submission time Handle Problem Language Result Execution time Memory
395928 2021-04-29T08:18:10 Z pure_mem Toll (BOI17_toll) C++14
100 / 100
 180 ms 170012 KB 
#include <bits/stdc++.h>

#define X first
#define Y second
#define MP make_pair
#define ll long long

using namespace std;

const int N = 1e6 + 1, M = 1e7 + 1, mod = 1e9 + 7;            
const ll INF = 1e18;

ll sp[50001][17][5][5], ans[5][5], tmp[5][5];
int k, n, m, q;
void comb(ll (&t)[5][5], const ll (&a)[5][5], const ll (&b)[5][5]){
	for(int x = 0;x < k;x++){
		for(int y = 0;y < k;y++){
			t[x][y] = INF;
			for(int z = 0;z < k;z++){
				t[x][y] = min(t[x][y], a[x][z] + b[z][y]);
			}
		}
	}	
}
int main () {
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> k >> n >> m >> q;  
	memset(sp, 0x3f, sizeof(sp));
	for(int i = 0, x, y, c;i < m;i++){
		cin >> x >> y >> c;
		//cerr << x / k << " " << y / k << "\n";
		sp[x / k][0][x % k][y % k] = c;	
	}
	for(int i = 1;i < 17;i++){
		for(int j = 0;j + (1 << i) < (n + k - 1) / k;j++){
			comb(sp[j][i], sp[j][i - 1], sp[j + (1 << (i - 1))][i - 1]);	
		}                           
	}
	for(int l, r;q--;){
		cin >> l >> r;
		memset(ans, 0x3f, sizeof(ans));
		for(int i = 0;i < k;i++) ans[i][i] = 0;
		for(int st = l / k, fn = r / k, i = 16;i >= 0;i--){
			if(st + (1 << i) <= fn){
				//cerr << sp[st][0][l % k][r % k] << "\n";
				comb(tmp, ans, sp[st][i]);
				memcpy(ans, tmp, sizeof(ans));
				st += (1 << i);
			}
		}
		ll z = ans[l % k][r % k];
		if(z >= INF)
			z = -1;
		cout << z << "\n";
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 167608 KB Output is correct
2 Correct 70 ms 166576 KB Output is correct
3 Correct 67 ms 166596 KB Output is correct
4 Correct 73 ms 166592 KB Output is correct
5 Correct 69 ms 166592 KB Output is correct
6 Correct 69 ms 166600 KB Output is correct
7 Correct 77 ms 166596 KB Output is correct
8 Correct 131 ms 167492 KB Output is correct
9 Correct 116 ms 167664 KB Output is correct
10 Correct 91 ms 166696 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 168292 KB Output is correct
2 Correct 76 ms 166600 KB Output is correct
3 Correct 73 ms 166644 KB Output is correct
4 Correct 67 ms 166600 KB Output is correct
5 Correct 68 ms 166632 KB Output is correct
6 Correct 67 ms 166640 KB Output is correct
7 Correct 80 ms 166740 KB Output is correct
8 Correct 73 ms 166784 KB Output is correct
9 Correct 111 ms 167460 KB Output is correct
10 Correct 155 ms 168900 KB Output is correct
11 Correct 152 ms 168328 KB Output is correct
12 Correct 134 ms 167876 KB Output is correct
13 Correct 137 ms 169032 KB Output is correct
14 Correct 113 ms 168004 KB Output is correct
15 Correct 115 ms 167760 KB Output is correct
16 Correct 113 ms 167804 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 166644 KB Output is correct
2 Correct 69 ms 166556 KB Output is correct
3 Correct 70 ms 166620 KB Output is correct
4 Correct 69 ms 166596 KB Output is correct
5 Correct 69 ms 166560 KB Output is correct
6 Correct 70 ms 166552 KB Output is correct
7 Correct 77 ms 166788 KB Output is correct
8 Correct 71 ms 166596 KB Output is correct
9 Correct 70 ms 166620 KB Output is correct
10 Correct 106 ms 167332 KB Output is correct
11 Correct 146 ms 168132 KB Output is correct
12 Correct 149 ms 168880 KB Output is correct
13 Correct 149 ms 169028 KB Output is correct
14 Correct 137 ms 168452 KB Output is correct
15 Correct 108 ms 167824 KB Output is correct
16 Correct 112 ms 167748 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 166644 KB Output is correct
2 Correct 69 ms 166556 KB Output is correct
3 Correct 70 ms 166620 KB Output is correct
4 Correct 69 ms 166596 KB Output is correct
5 Correct 69 ms 166560 KB Output is correct
6 Correct 70 ms 166552 KB Output is correct
7 Correct 77 ms 166788 KB Output is correct
8 Correct 71 ms 166596 KB Output is correct
9 Correct 70 ms 166620 KB Output is correct
10 Correct 106 ms 167332 KB Output is correct
11 Correct 146 ms 168132 KB Output is correct
12 Correct 149 ms 168880 KB Output is correct
13 Correct 149 ms 169028 KB Output is correct
14 Correct 137 ms 168452 KB Output is correct
15 Correct 108 ms 167824 KB Output is correct
16 Correct 112 ms 167748 KB Output is correct
17 Correct 146 ms 168156 KB Output is correct
18 Correct 71 ms 166532 KB Output is correct
19 Correct 70 ms 166544 KB Output is correct
20 Correct 70 ms 166596 KB Output is correct
21 Correct 69 ms 166644 KB Output is correct
22 Correct 70 ms 166616 KB Output is correct
23 Correct 71 ms 166660 KB Output is correct
24 Correct 71 ms 166660 KB Output is correct
25 Correct 73 ms 166724 KB Output is correct
26 Correct 72 ms 166672 KB Output is correct
27 Correct 109 ms 167468 KB Output is correct
28 Correct 150 ms 168772 KB Output is correct
29 Correct 156 ms 169080 KB Output is correct
30 Correct 146 ms 168600 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 167608 KB Output is correct
2 Correct 70 ms 166576 KB Output is correct
3 Correct 67 ms 166596 KB Output is correct
4 Correct 73 ms 166592 KB Output is correct
5 Correct 69 ms 166592 KB Output is correct
6 Correct 69 ms 166600 KB Output is correct
7 Correct 77 ms 166596 KB Output is correct
8 Correct 131 ms 167492 KB Output is correct
9 Correct 116 ms 167664 KB Output is correct
10 Correct 91 ms 166696 KB Output is correct
11 Correct 166 ms 168292 KB Output is correct
12 Correct 76 ms 166600 KB Output is correct
13 Correct 73 ms 166644 KB Output is correct
14 Correct 67 ms 166600 KB Output is correct
15 Correct 68 ms 166632 KB Output is correct
16 Correct 67 ms 166640 KB Output is correct
17 Correct 80 ms 166740 KB Output is correct
18 Correct 73 ms 166784 KB Output is correct
19 Correct 111 ms 167460 KB Output is correct
20 Correct 155 ms 168900 KB Output is correct
21 Correct 152 ms 168328 KB Output is correct
22 Correct 134 ms 167876 KB Output is correct
23 Correct 137 ms 169032 KB Output is correct
24 Correct 113 ms 168004 KB Output is correct
25 Correct 115 ms 167760 KB Output is correct
26 Correct 113 ms 167804 KB Output is correct
27 Correct 70 ms 166644 KB Output is correct
28 Correct 69 ms 166556 KB Output is correct
29 Correct 70 ms 166620 KB Output is correct
30 Correct 69 ms 166596 KB Output is correct
31 Correct 69 ms 166560 KB Output is correct
32 Correct 70 ms 166552 KB Output is correct
33 Correct 77 ms 166788 KB Output is correct
34 Correct 71 ms 166596 KB Output is correct
35 Correct 70 ms 166620 KB Output is correct
36 Correct 106 ms 167332 KB Output is correct
37 Correct 146 ms 168132 KB Output is correct
38 Correct 149 ms 168880 KB Output is correct
39 Correct 149 ms 169028 KB Output is correct
40 Correct 137 ms 168452 KB Output is correct
41 Correct 108 ms 167824 KB Output is correct
42 Correct 112 ms 167748 KB Output is correct
43 Correct 146 ms 168156 KB Output is correct
44 Correct 71 ms 166532 KB Output is correct
45 Correct 70 ms 166544 KB Output is correct
46 Correct 70 ms 166596 KB Output is correct
47 Correct 69 ms 166644 KB Output is correct
48 Correct 70 ms 166616 KB Output is correct
49 Correct 71 ms 166660 KB Output is correct
50 Correct 71 ms 166660 KB Output is correct
51 Correct 73 ms 166724 KB Output is correct
52 Correct 72 ms 166672 KB Output is correct
53 Correct 109 ms 167468 KB Output is correct
54 Correct 150 ms 168772 KB Output is correct
55 Correct 156 ms 169080 KB Output is correct
56 Correct 146 ms 168600 KB Output is correct
57 Correct 180 ms 170012 KB Output is correct
58 Correct 116 ms 167516 KB Output is correct
59 Correct 163 ms 168472 KB Output is correct