oj.uz

Submission #388393

# Submission time Handle Problem Language Result Execution time Memory
388393 2021-04-11T10:24:43 Z soroush Toll (BOI17_toll) C++17
100 / 100
 107 ms 28740 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair < int , int > pii;
 
const int maxn = 5e4 + 10;
const ll inf = 1e10;
 
#define pb push_back
#define endl '\n'
#define dokme(x) cout << x , exit(0)
#define migmig ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define ms(x , y) memset(x , y , sizeof x)
 
#define fuck(x) for(int i = 0 ; i < 5 ; i ++)for(int j = 0 ; j < 5 ; j ++)x[i][j] = inf;
 
int k , n , m , q;
 
struct node{
	ll dist[5][5];
	friend node operator +(node l , node r){
		node v;
		fuck(v.dist);
		for(int i = 0 ; i < 5 ; i ++)for(int k = 0 ; k < 5 ; k ++)for(int j = 0 ; j < 5 ; j ++)
			v.dist[i][k] = min(v.dist[i][k] , l.dist[i][j] + r.dist[j][k]);
		return v;
	}
}seg[maxn<<2];
 
vector < pii > adj[maxn];
 
#define lc (v << 1)
#define rc (lc | 1)
#define mid ((l + r) >> 1)
 
void build(int v = 1 , int l = 0 , int r = (n + k - 1)/k){
	if(r - l == 1){
		fuck(seg[v].dist);
		for(int s = 0 ; s < k ; s ++)
			for(auto u : adj[l * k + s])
				seg[v].dist[s][u.first%k] = u.second;
		return;
	}
	build(lc , l , mid);
	build(rc , mid , r);
	seg[v] = seg[lc] + seg[rc];
}
 
node get(int L , int R , int v = 1 , int l = 0 , int r = (n + k - 1)/k){
	if(L <= l and r <= R)
		return seg[v];
	if(L < mid and R <= mid)
		return get(L , R , lc , l , mid);
	if(L >= mid)
		return get(L , R , rc , mid , r);
	return get(L , R , lc , l , mid) + get(L , R , rc , mid , r);
}
 
int32_t main(){
	migmig;
	cin >> k >> n >> m >> q;
	for(int i = 1 ; i <= m ; i ++){
		int u , v , w;
		cin >> u >> v >> w;
		adj[u].pb({v , w});
	}
	build();
	while(q --){
		int u , v;
		cin >> u >> v;
		if(u > v or u/k == v/k){
			cout << -1 << endl;
			continue;
		}
		if(u == v){
			cout << 0 << endl;
			continue;
		}
		auto res = get(u/k , v/k);
		cout << ((res.dist[u%k][v%k] == inf) ? -1 : res.dist[u%k][v%k]) << endl;
	}
	return(0);
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 28740 KB Output is correct
2 Correct 1 ms 1484 KB Output is correct
3 Correct 1 ms 1484 KB Output is correct
4 Correct 1 ms 1484 KB Output is correct
5 Correct 3 ms 1868 KB Output is correct
6 Correct 3 ms 1868 KB Output is correct
7 Correct 3 ms 1868 KB Output is correct
8 Correct 77 ms 28740 KB Output is correct
9 Correct 86 ms 28612 KB Output is correct
10 Correct 55 ms 27160 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 15868 KB Output is correct
2 Correct 1 ms 1484 KB Output is correct
3 Correct 1 ms 1484 KB Output is correct
4 Correct 1 ms 1484 KB Output is correct
5 Correct 1 ms 1484 KB Output is correct
6 Correct 1 ms 1484 KB Output is correct
7 Correct 17 ms 1952 KB Output is correct
8 Correct 12 ms 1868 KB Output is correct
9 Correct 63 ms 28716 KB Output is correct
10 Correct 92 ms 11584 KB Output is correct
11 Correct 67 ms 15852 KB Output is correct
12 Correct 52 ms 10436 KB Output is correct
13 Correct 64 ms 7460 KB Output is correct
14 Correct 45 ms 9540 KB Output is correct
15 Correct 40 ms 6012 KB Output is correct
16 Correct 35 ms 5964 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1484 KB Output is correct
2 Correct 1 ms 1484 KB Output is correct
3 Correct 1 ms 1484 KB Output is correct
4 Correct 1 ms 1484 KB Output is correct
5 Correct 1 ms 1484 KB Output is correct
6 Correct 2 ms 1868 KB Output is correct
7 Correct 2 ms 1612 KB Output is correct
8 Correct 3 ms 1612 KB Output is correct
9 Correct 2 ms 1612 KB Output is correct
10 Correct 43 ms 28580 KB Output is correct
11 Correct 50 ms 15776 KB Output is correct
12 Correct 62 ms 11460 KB Output is correct
13 Correct 65 ms 11760 KB Output is correct
14 Correct 50 ms 11044 KB Output is correct
15 Correct 31 ms 5872 KB Output is correct
16 Correct 39 ms 5900 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1484 KB Output is correct
2 Correct 1 ms 1484 KB Output is correct
3 Correct 1 ms 1484 KB Output is correct
4 Correct 1 ms 1484 KB Output is correct
5 Correct 1 ms 1484 KB Output is correct
6 Correct 2 ms 1868 KB Output is correct
7 Correct 2 ms 1612 KB Output is correct
8 Correct 3 ms 1612 KB Output is correct
9 Correct 2 ms 1612 KB Output is correct
10 Correct 43 ms 28580 KB Output is correct
11 Correct 50 ms 15776 KB Output is correct
12 Correct 62 ms 11460 KB Output is correct
13 Correct 65 ms 11760 KB Output is correct
14 Correct 50 ms 11044 KB Output is correct
15 Correct 31 ms 5872 KB Output is correct
16 Correct 39 ms 5900 KB Output is correct
17 Correct 57 ms 15900 KB Output is correct
18 Correct 1 ms 1484 KB Output is correct
19 Correct 1 ms 1484 KB Output is correct
20 Correct 1 ms 1484 KB Output is correct
21 Correct 1 ms 1484 KB Output is correct
22 Correct 1 ms 1484 KB Output is correct
23 Correct 7 ms 1940 KB Output is correct
24 Correct 8 ms 1736 KB Output is correct
25 Correct 6 ms 1616 KB Output is correct
26 Correct 7 ms 1612 KB Output is correct
27 Correct 59 ms 28652 KB Output is correct
28 Correct 95 ms 11488 KB Output is correct
29 Correct 85 ms 11804 KB Output is correct
30 Correct 59 ms 11116 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 28740 KB Output is correct
2 Correct 1 ms 1484 KB Output is correct
3 Correct 1 ms 1484 KB Output is correct
4 Correct 1 ms 1484 KB Output is correct
5 Correct 3 ms 1868 KB Output is correct
6 Correct 3 ms 1868 KB Output is correct
7 Correct 3 ms 1868 KB Output is correct
8 Correct 77 ms 28740 KB Output is correct
9 Correct 86 ms 28612 KB Output is correct
10 Correct 55 ms 27160 KB Output is correct
11 Correct 67 ms 15868 KB Output is correct
12 Correct 1 ms 1484 KB Output is correct
13 Correct 1 ms 1484 KB Output is correct
14 Correct 1 ms 1484 KB Output is correct
15 Correct 1 ms 1484 KB Output is correct
16 Correct 1 ms 1484 KB Output is correct
17 Correct 17 ms 1952 KB Output is correct
18 Correct 12 ms 1868 KB Output is correct
19 Correct 63 ms 28716 KB Output is correct
20 Correct 92 ms 11584 KB Output is correct
21 Correct 67 ms 15852 KB Output is correct
22 Correct 52 ms 10436 KB Output is correct
23 Correct 64 ms 7460 KB Output is correct
24 Correct 45 ms 9540 KB Output is correct
25 Correct 40 ms 6012 KB Output is correct
26 Correct 35 ms 5964 KB Output is correct
27 Correct 1 ms 1484 KB Output is correct
28 Correct 1 ms 1484 KB Output is correct
29 Correct 1 ms 1484 KB Output is correct
30 Correct 1 ms 1484 KB Output is correct
31 Correct 1 ms 1484 KB Output is correct
32 Correct 2 ms 1868 KB Output is correct
33 Correct 2 ms 1612 KB Output is correct
34 Correct 3 ms 1612 KB Output is correct
35 Correct 2 ms 1612 KB Output is correct
36 Correct 43 ms 28580 KB Output is correct
37 Correct 50 ms 15776 KB Output is correct
38 Correct 62 ms 11460 KB Output is correct
39 Correct 65 ms 11760 KB Output is correct
40 Correct 50 ms 11044 KB Output is correct
41 Correct 31 ms 5872 KB Output is correct
42 Correct 39 ms 5900 KB Output is correct
43 Correct 57 ms 15900 KB Output is correct
44 Correct 1 ms 1484 KB Output is correct
45 Correct 1 ms 1484 KB Output is correct
46 Correct 1 ms 1484 KB Output is correct
47 Correct 1 ms 1484 KB Output is correct
48 Correct 1 ms 1484 KB Output is correct
49 Correct 7 ms 1940 KB Output is correct
50 Correct 8 ms 1736 KB Output is correct
51 Correct 6 ms 1616 KB Output is correct
52 Correct 7 ms 1612 KB Output is correct
53 Correct 59 ms 28652 KB Output is correct
54 Correct 95 ms 11488 KB Output is correct
55 Correct 85 ms 11804 KB Output is correct
56 Correct 59 ms 11116 KB Output is correct
57 Correct 107 ms 10696 KB Output is correct
58 Correct 76 ms 28640 KB Output is correct
59 Correct 78 ms 15940 KB Output is correct