Submission #880569

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
880569	2023-11-29T16:28:19 Z	tsumondai	Autobus (COCI22_autobus)	C++14	70 / 70	102 ms	27560 KB

Main

#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

#	Verdict	Execution time	Memory	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

#	Verdict	Execution time	Memory	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

#	Verdict	Execution time	Memory	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

#	Verdict	Execution time	Memory	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

Submission #880569

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 15.0 / 15.0

Subtask #3 25.0 / 25.0

Subtask #4 15.0 / 15.0

Subtask #1
15.0 / 15.0

Subtask #2
15.0 / 15.0

Subtask #3
25.0 / 25.0

Subtask #4
15.0 / 15.0