oj.uz

Submission #791145

# Submission time Handle Problem Language Result Execution time Memory
791145 2023-07-23T13:02:51 Z Username4132 Autobus (COCI22_autobus) C++14
70 / 70
 124 ms 7984 KB 
#include<iostream>
using namespace std;
#define forn(i, n) for(int i=0; i<(int)n; ++i)

const int MAXN=72, INF=1000000010;
int n, m, k, q, adj[MAXN][MAXN], dis[MAXN][MAXN][MAXN];

int main(){
    scanf("%d %d", &n, &m);
    forn(i, n) forn(j, n) adj[i][j]=INF;
    forn(i, n) adj[i][i]=0;
    forn(i, m){
        int a, b, t; scanf("%d %d %d", &a, &b, &t); --a, --b;
        adj[a][b]=min(adj[a][b], t);
    }
    scanf("%d %d", &k, &q);
    k = min(k, n-1);
    forn(it, k+1) forn(i, n) forn(j, n) dis[it][i][j]=INF;
    forn(it, k+1) forn(i, n) dis[it][i][i]=0;
    forn(it, k){
        forn(v, n) forn(i, n) forn(j, n){
            dis[it+1][v][j]=min(dis[it+1][v][j], dis[it][v][i] + adj[i][j]);
        }
    }
    forn(i, q){
        int a, b; scanf("%d %d", &a, &b), --a, --b;
        int d = dis[k][a][b];
        printf("%d\n", d==INF? -1 : d);
    }
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d %d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp:13:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |         int a, b, t; scanf("%d %d %d", &a, &b, &t); --a, --b;
      |                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     scanf("%d %d", &k, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp:26:24: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         int a, b; scanf("%d %d", &a, &b), --a, --b;
      |                   ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 2 ms 452 KB Output is correct
3 Correct 3 ms 468 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 3 ms 340 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 3 ms 468 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 8 ms 852 KB Output is correct
8 Correct 19 ms 1760 KB Output is correct
9 Correct 3 ms 468 KB Output is correct
10 Correct 11 ms 1136 KB Output is correct
11 Correct 5 ms 596 KB Output is correct
12 Correct 17 ms 1236 KB Output is correct
13 Correct 88 ms 6436 KB Output is correct
14 Correct 89 ms 6560 KB Output is correct
15 Correct 107 ms 7588 KB Output is correct
16 Correct 92 ms 6820 KB Output is correct
17 Correct 89 ms 6572 KB Output is correct
18 Correct 89 ms 6564 KB Output is correct
19 Correct 124 ms 7936 KB Output is correct
20 Correct 112 ms 7204 KB Output is correct
21 Correct 92 ms 6564 KB Output is correct
22 Correct 91 ms 6816 KB Output is correct
23 Correct 90 ms 6820 KB Output is correct
24 Correct 102 ms 7336 KB Output is correct
25 Correct 98 ms 6692 KB Output is correct
26 Correct 93 ms 6948 KB Output is correct
27 Correct 98 ms 7072 KB Output is correct
28 Correct 99 ms 6948 KB Output is correct
29 Correct 87 ms 6476 KB Output is correct
30 Correct 97 ms 6692 KB Output is correct
31 Correct 98 ms 7076 KB Output is correct
32 Correct 104 ms 7728 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 2 ms 452 KB Output is correct
9 Correct 3 ms 468 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 3 ms 340 KB Output is correct
12 Correct 3 ms 468 KB Output is correct
13 Correct 3 ms 468 KB Output is correct
14 Correct 8 ms 852 KB Output is correct
15 Correct 19 ms 1760 KB Output is correct
16 Correct 3 ms 468 KB Output is correct
17 Correct 11 ms 1136 KB Output is correct
18 Correct 5 ms 596 KB Output is correct
19 Correct 17 ms 1236 KB Output is correct
20 Correct 88 ms 6436 KB Output is correct
21 Correct 89 ms 6560 KB Output is correct
22 Correct 107 ms 7588 KB Output is correct
23 Correct 92 ms 6820 KB Output is correct
24 Correct 89 ms 6572 KB Output is correct
25 Correct 89 ms 6564 KB Output is correct
26 Correct 124 ms 7936 KB Output is correct
27 Correct 112 ms 7204 KB Output is correct
28 Correct 92 ms 6564 KB Output is correct
29 Correct 91 ms 6816 KB Output is correct
30 Correct 90 ms 6820 KB Output is correct
31 Correct 102 ms 7336 KB Output is correct
32 Correct 98 ms 6692 KB Output is correct
33 Correct 93 ms 6948 KB Output is correct
34 Correct 98 ms 7072 KB Output is correct
35 Correct 99 ms 6948 KB Output is correct
36 Correct 87 ms 6476 KB Output is correct
37 Correct 97 ms 6692 KB Output is correct
38 Correct 98 ms 7076 KB Output is correct
39 Correct 104 ms 7728 KB Output is correct
40 Correct 7 ms 724 KB Output is correct
41 Correct 20 ms 1748 KB Output is correct
42 Correct 4 ms 468 KB Output is correct
43 Correct 20 ms 1796 KB Output is correct
44 Correct 5 ms 632 KB Output is correct
45 Correct 21 ms 1748 KB Output is correct
46 Correct 102 ms 6564 KB Output is correct
47 Correct 95 ms 7088 KB Output is correct
48 Correct 90 ms 6700 KB Output is correct
49 Correct 108 ms 7856 KB Output is correct
50 Correct 88 ms 6576 KB Output is correct
51 Correct 100 ms 6816 KB Output is correct
52 Correct 92 ms 6576 KB Output is correct
53 Correct 107 ms 7844 KB Output is correct
54 Correct 88 ms 6572 KB Output is correct
55 Correct 93 ms 6604 KB Output is correct
56 Correct 117 ms 7840 KB Output is correct
57 Correct 109 ms 7960 KB Output is correct
58 Correct 94 ms 6700 KB Output is correct
59 Correct 98 ms 7204 KB Output is correct
60 Correct 105 ms 7724 KB Output is correct
61 Correct 108 ms 7984 KB Output is correct
62 Correct 87 ms 6448 KB Output is correct
63 Correct 91 ms 6688 KB Output is correct
64 Correct 96 ms 6816 KB Output is correct
65 Correct 106 ms 7724 KB Output is correct