oj.uz

답안 #880569

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
880569 2023-11-29T16:28:19 Z tsumondai Autobus (COCI22_autobus) C++14
70 / 70
 102 ms 27560 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
#define __TIME  (1.0 * clock() / CLOCKS_PER_SEC)

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
const int N = 1e6 + 5;
 
const int oo = 1e9, mod = 1e9 + 7;
 
int n, m, k, q;
string s;
vector<ii> adj[N];

// precalc

void process() {
	cin >> n >> m;
	vector<vector<int>> c(n+1, vector<int>(n+1, oo));
	foru(i,0,n-1) c[i][i]=0;
	foru(i,1,m) {
		int u, v, t; cin >> u >> v >> t;
		u--, v--;
		c[u][v]=min(c[u][v], t);
	}

	cin >> k >> q;


	k = min(k, n);
    auto sol = c;
    while (--k) {
        auto new_sol = sol; 
        for (int x = 0; x < n; x++)
            for (int y = 0; y < n; y++)
                for (int z = 0; z < n; z++)
                    new_sol[x][y] = min(new_sol[x][y], sol[x][z] + c[z][y]);
        sol = new_sol;
    }

	while (q--) {
		int s, t;
		cin >> s >> t;
		s--, t--;
		if (sol[s][t]>=oo) cout << -1 << '\n'; else cout << sol[s][t] << '\n';
	}

    return;
}

signed main() {
    cin.tie(0)->sync_with_stdio(false);
    //freopen(".inp", "r", stdin);
    //freopen(".out", "w", stdout);
    process();
    cerr << "Time elapsed: " << __TIME << " s.\n";
    return 0;
}

/*
Xét các trường hợp đặc biệt
Kiểm tra lại input/output
Cố gắng trâu
Lật ngược bài toán
Keep calm and get VOI 
Flow:

*/

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 23896 KB Output is correct
2 Correct 5 ms 23900 KB Output is correct
3 Correct 6 ms 23900 KB Output is correct
4 Correct 5 ms 23912 KB Output is correct
5 Correct 5 ms 23900 KB Output is correct
6 Correct 6 ms 23900 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 23900 KB Output is correct
2 Correct 7 ms 23900 KB Output is correct
3 Correct 7 ms 23900 KB Output is correct
4 Correct 8 ms 23900 KB Output is correct
5 Correct 7 ms 23900 KB Output is correct
6 Correct 7 ms 24156 KB Output is correct
7 Correct 8 ms 24152 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 23896 KB Output is correct
2 Correct 5 ms 23900 KB Output is correct
3 Correct 6 ms 23900 KB Output is correct
4 Correct 5 ms 23912 KB Output is correct
5 Correct 5 ms 23900 KB Output is correct
6 Correct 6 ms 23900 KB Output is correct
7 Correct 14 ms 23900 KB Output is correct
8 Correct 29 ms 24120 KB Output is correct
9 Correct 7 ms 23900 KB Output is correct
10 Correct 18 ms 23956 KB Output is correct
11 Correct 10 ms 24156 KB Output is correct
12 Correct 23 ms 23924 KB Output is correct
13 Correct 79 ms 27472 KB Output is correct
14 Correct 77 ms 27216 KB Output is correct
15 Correct 96 ms 27288 KB Output is correct
16 Correct 85 ms 27276 KB Output is correct
17 Correct 78 ms 27156 KB Output is correct
18 Correct 79 ms 27216 KB Output is correct
19 Correct 102 ms 27292 KB Output is correct
20 Correct 89 ms 27380 KB Output is correct
21 Correct 79 ms 27412 KB Output is correct
22 Correct 82 ms 27220 KB Output is correct
23 Correct 80 ms 27220 KB Output is correct
24 Correct 89 ms 27388 KB Output is correct
25 Correct 80 ms 27216 KB Output is correct
26 Correct 83 ms 27220 KB Output is correct
27 Correct 85 ms 27216 KB Output is correct
28 Correct 92 ms 27220 KB Output is correct
29 Correct 76 ms 27296 KB Output is correct
30 Correct 81 ms 27148 KB Output is correct
31 Correct 93 ms 27148 KB Output is correct
32 Correct 101 ms 27148 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 23896 KB Output is correct
2 Correct 5 ms 23900 KB Output is correct
3 Correct 6 ms 23900 KB Output is correct
4 Correct 5 ms 23912 KB Output is correct
5 Correct 5 ms 23900 KB Output is correct
6 Correct 6 ms 23900 KB Output is correct
7 Correct 7 ms 23900 KB Output is correct
8 Correct 7 ms 23900 KB Output is correct
9 Correct 7 ms 23900 KB Output is correct
10 Correct 8 ms 23900 KB Output is correct
11 Correct 7 ms 23900 KB Output is correct
12 Correct 7 ms 24156 KB Output is correct
13 Correct 8 ms 24152 KB Output is correct
14 Correct 14 ms 23900 KB Output is correct
15 Correct 29 ms 24120 KB Output is correct
16 Correct 7 ms 23900 KB Output is correct
17 Correct 18 ms 23956 KB Output is correct
18 Correct 10 ms 24156 KB Output is correct
19 Correct 23 ms 23924 KB Output is correct
20 Correct 79 ms 27472 KB Output is correct
21 Correct 77 ms 27216 KB Output is correct
22 Correct 96 ms 27288 KB Output is correct
23 Correct 85 ms 27276 KB Output is correct
24 Correct 78 ms 27156 KB Output is correct
25 Correct 79 ms 27216 KB Output is correct
26 Correct 102 ms 27292 KB Output is correct
27 Correct 89 ms 27380 KB Output is correct
28 Correct 79 ms 27412 KB Output is correct
29 Correct 82 ms 27220 KB Output is correct
30 Correct 80 ms 27220 KB Output is correct
31 Correct 89 ms 27388 KB Output is correct
32 Correct 80 ms 27216 KB Output is correct
33 Correct 83 ms 27220 KB Output is correct
34 Correct 85 ms 27216 KB Output is correct
35 Correct 92 ms 27220 KB Output is correct
36 Correct 76 ms 27296 KB Output is correct
37 Correct 81 ms 27148 KB Output is correct
38 Correct 93 ms 27148 KB Output is correct
39 Correct 101 ms 27148 KB Output is correct
40 Correct 12 ms 23900 KB Output is correct
41 Correct 30 ms 24076 KB Output is correct
42 Correct 9 ms 23900 KB Output is correct
43 Correct 29 ms 24104 KB Output is correct
44 Correct 10 ms 24144 KB Output is correct
45 Correct 30 ms 24156 KB Output is correct
46 Correct 77 ms 27220 KB Output is correct
47 Correct 100 ms 27216 KB Output is correct
48 Correct 80 ms 27216 KB Output is correct
49 Correct 99 ms 27276 KB Output is correct
50 Correct 78 ms 27216 KB Output is correct
51 Correct 81 ms 27224 KB Output is correct
52 Correct 78 ms 27216 KB Output is correct
53 Correct 99 ms 27288 KB Output is correct
54 Correct 80 ms 27560 KB Output is correct
55 Correct 77 ms 27216 KB Output is correct
56 Correct 97 ms 27292 KB Output is correct
57 Correct 99 ms 27224 KB Output is correct
58 Correct 81 ms 27220 KB Output is correct
59 Correct 89 ms 27228 KB Output is correct
60 Correct 96 ms 27292 KB Output is correct
61 Correct 99 ms 23976 KB Output is correct
62 Correct 74 ms 23972 KB Output is correct
63 Correct 81 ms 23960 KB Output is correct
64 Correct 81 ms 23976 KB Output is correct
65 Correct 96 ms 24040 KB Output is correct