#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;
int dp[30001];
vector<int> G[30001];
int A[30001][2];
int main(){
int n, k;
cin >> n >> k;
for(int i = 0; i < k; i++){
cin >> A[i][0] >> A[i][1];
G[A[i][0]].push_back(A[i][1]);
}
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> q;
q.push({0, A[0][0]});
fill(dp, dp + n, (1 << 30));
while(q.size()){
pair<int, int> qe = q.top(); q.pop();
int v = qe.se, w = qe.fi;
if(dp[v] != (1 << 30)) continue;
dp[v] = w;
// cout << v << ' ' << w << endl;
for(auto i : G[v]){
for(int j = v % i; j < n; j += i){
int d = abs(v - j) / i;
if(dp[j] > w + d) q.push({w + d, j});
}
}
}
cout << (dp[A[1][0]] == (1 << 30) ? -1 : dp[A[1][0]]) << endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1012 KB |
Output is correct |
2 |
Correct |
1 ms |
980 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
1020 KB |
Output is correct |
6 |
Correct |
1 ms |
1020 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
980 KB |
Output is correct |
2 |
Correct |
1 ms |
1008 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
980 KB |
Output is correct |
6 |
Correct |
1 ms |
980 KB |
Output is correct |
7 |
Correct |
1 ms |
1012 KB |
Output is correct |
8 |
Correct |
1 ms |
984 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
3 ms |
1024 KB |
Output is correct |
12 |
Correct |
6 ms |
1616 KB |
Output is correct |
13 |
Correct |
3 ms |
980 KB |
Output is correct |
14 |
Correct |
2 ms |
1108 KB |
Output is correct |
15 |
Correct |
2 ms |
1020 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
980 KB |
Output is correct |
2 |
Correct |
1 ms |
980 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
980 KB |
Output is correct |
6 |
Correct |
1 ms |
980 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
980 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
2 ms |
980 KB |
Output is correct |
11 |
Correct |
2 ms |
1028 KB |
Output is correct |
12 |
Correct |
7 ms |
1664 KB |
Output is correct |
13 |
Correct |
3 ms |
1108 KB |
Output is correct |
14 |
Correct |
2 ms |
1108 KB |
Output is correct |
15 |
Correct |
2 ms |
1108 KB |
Output is correct |
16 |
Correct |
1 ms |
980 KB |
Output is correct |
17 |
Correct |
3 ms |
1156 KB |
Output is correct |
18 |
Correct |
2 ms |
980 KB |
Output is correct |
19 |
Correct |
1 ms |
980 KB |
Output is correct |
20 |
Correct |
402 ms |
9484 KB |
Output is correct |
21 |
Correct |
1 ms |
980 KB |
Output is correct |
22 |
Correct |
1 ms |
980 KB |
Output is correct |
23 |
Correct |
1 ms |
980 KB |
Output is correct |
24 |
Correct |
2 ms |
1108 KB |
Output is correct |
25 |
Correct |
2 ms |
1156 KB |
Output is correct |
26 |
Correct |
43 ms |
3260 KB |
Output is correct |
27 |
Correct |
72 ms |
5216 KB |
Output is correct |
28 |
Correct |
2 ms |
1108 KB |
Output is correct |
29 |
Correct |
10 ms |
1616 KB |
Output is correct |
30 |
Correct |
3 ms |
1236 KB |
Output is correct |
31 |
Correct |
4 ms |
1364 KB |
Output is correct |
32 |
Correct |
3 ms |
1236 KB |
Output is correct |
33 |
Correct |
19 ms |
2124 KB |
Output is correct |
34 |
Correct |
20 ms |
2124 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
980 KB |
Output is correct |
2 |
Correct |
1 ms |
1016 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
980 KB |
Output is correct |
6 |
Correct |
1 ms |
1016 KB |
Output is correct |
7 |
Correct |
1 ms |
980 KB |
Output is correct |
8 |
Correct |
1 ms |
980 KB |
Output is correct |
9 |
Correct |
1 ms |
1016 KB |
Output is correct |
10 |
Correct |
1 ms |
980 KB |
Output is correct |
11 |
Correct |
2 ms |
1108 KB |
Output is correct |
12 |
Correct |
7 ms |
1616 KB |
Output is correct |
13 |
Correct |
4 ms |
980 KB |
Output is correct |
14 |
Correct |
2 ms |
1020 KB |
Output is correct |
15 |
Correct |
2 ms |
1020 KB |
Output is correct |
16 |
Correct |
1 ms |
980 KB |
Output is correct |
17 |
Correct |
4 ms |
1156 KB |
Output is correct |
18 |
Correct |
2 ms |
980 KB |
Output is correct |
19 |
Correct |
1 ms |
980 KB |
Output is correct |
20 |
Correct |
357 ms |
9432 KB |
Output is correct |
21 |
Correct |
2 ms |
980 KB |
Output is correct |
22 |
Correct |
2 ms |
1020 KB |
Output is correct |
23 |
Correct |
2 ms |
980 KB |
Output is correct |
24 |
Correct |
3 ms |
1108 KB |
Output is correct |
25 |
Correct |
2 ms |
1108 KB |
Output is correct |
26 |
Correct |
44 ms |
3144 KB |
Output is correct |
27 |
Correct |
72 ms |
5236 KB |
Output is correct |
28 |
Correct |
2 ms |
1108 KB |
Output is correct |
29 |
Correct |
9 ms |
1660 KB |
Output is correct |
30 |
Correct |
3 ms |
1236 KB |
Output is correct |
31 |
Correct |
5 ms |
1364 KB |
Output is correct |
32 |
Correct |
3 ms |
1236 KB |
Output is correct |
33 |
Correct |
20 ms |
2128 KB |
Output is correct |
34 |
Correct |
20 ms |
2124 KB |
Output is correct |
35 |
Correct |
28 ms |
2224 KB |
Output is correct |
36 |
Correct |
4 ms |
1236 KB |
Output is correct |
37 |
Correct |
34 ms |
3668 KB |
Output is correct |
38 |
Correct |
40 ms |
2864 KB |
Output is correct |
39 |
Correct |
42 ms |
2832 KB |
Output is correct |
40 |
Correct |
34 ms |
2824 KB |
Output is correct |
41 |
Correct |
33 ms |
2900 KB |
Output is correct |
42 |
Correct |
863 ms |
34440 KB |
Output is correct |
43 |
Execution timed out |
1085 ms |
67304 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1024 KB |
Output is correct |
2 |
Correct |
1 ms |
980 KB |
Output is correct |
3 |
Correct |
1 ms |
980 KB |
Output is correct |
4 |
Correct |
1 ms |
980 KB |
Output is correct |
5 |
Correct |
1 ms |
980 KB |
Output is correct |
6 |
Correct |
1 ms |
1008 KB |
Output is correct |
7 |
Correct |
1 ms |
1016 KB |
Output is correct |
8 |
Correct |
1 ms |
980 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
2 ms |
1020 KB |
Output is correct |
11 |
Correct |
2 ms |
1108 KB |
Output is correct |
12 |
Correct |
7 ms |
1616 KB |
Output is correct |
13 |
Correct |
4 ms |
1108 KB |
Output is correct |
14 |
Correct |
2 ms |
1108 KB |
Output is correct |
15 |
Correct |
2 ms |
1108 KB |
Output is correct |
16 |
Correct |
1 ms |
980 KB |
Output is correct |
17 |
Correct |
3 ms |
1236 KB |
Output is correct |
18 |
Correct |
2 ms |
980 KB |
Output is correct |
19 |
Correct |
1 ms |
980 KB |
Output is correct |
20 |
Correct |
347 ms |
9336 KB |
Output is correct |
21 |
Correct |
1 ms |
1024 KB |
Output is correct |
22 |
Correct |
1 ms |
980 KB |
Output is correct |
23 |
Correct |
2 ms |
980 KB |
Output is correct |
24 |
Correct |
3 ms |
1108 KB |
Output is correct |
25 |
Correct |
3 ms |
1072 KB |
Output is correct |
26 |
Correct |
54 ms |
3216 KB |
Output is correct |
27 |
Correct |
79 ms |
5176 KB |
Output is correct |
28 |
Correct |
2 ms |
1108 KB |
Output is correct |
29 |
Correct |
9 ms |
1616 KB |
Output is correct |
30 |
Correct |
3 ms |
1236 KB |
Output is correct |
31 |
Correct |
4 ms |
1396 KB |
Output is correct |
32 |
Correct |
3 ms |
1236 KB |
Output is correct |
33 |
Correct |
22 ms |
2168 KB |
Output is correct |
34 |
Correct |
19 ms |
2168 KB |
Output is correct |
35 |
Correct |
26 ms |
2260 KB |
Output is correct |
36 |
Correct |
6 ms |
1236 KB |
Output is correct |
37 |
Correct |
41 ms |
3652 KB |
Output is correct |
38 |
Correct |
31 ms |
2812 KB |
Output is correct |
39 |
Correct |
34 ms |
2864 KB |
Output is correct |
40 |
Correct |
40 ms |
2896 KB |
Output is correct |
41 |
Correct |
34 ms |
2812 KB |
Output is correct |
42 |
Correct |
864 ms |
34496 KB |
Output is correct |
43 |
Execution timed out |
1088 ms |
67400 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |