#include <bits/stdc++.h>
#define ll long long
using namespace std;
#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<": "<<#__VA_ARGS__<<" - ", _do(__VA_ARGS__)
template<typename T> void _do(T && x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T && x, S&&...y){cerr<<x<<", "; _do(y...);}
#define IOS()
#else
#define bug(...)
#define IOS() ios::sync_with_stdio(0), cin.tie(0)
#define endl '\n'
#endif // BALBIT
#define pii pair<int, int>
#define f first
#define s second
#define ALL(x) x.begin(), x.end()
#define SZ(x) (int)(x.size())
#define pb push_back
const int maxn = 2005;
vector<pii> g[maxn];
int d[maxn];
set<pii> bp;
signed main(){
IOS();
int n,m; cin>>n>>m;
int S = -1, T = -1;
for (int i = 0; i<m; ++i) {
int b,p; cin>>b>>p;
if (i == 0) S = b;
if (i == 1) T = b;
if (bp.count({b,p})) continue;
bp.insert({b,p});
for (int j = 0; j<n; ++j) {
if ((j-b) % p == 0 && j!=b) {
g[b].pb({j,abs(j-b)/p});
}
}
}
memset(d, 0x3f, sizeof d);
d[S] = 0;
priority_queue<pii, vector<pii>, greater<pii> > pq;
pq.push({0,S});
while (!pq.empty()) {
int v = pq.top().s; int w = pq.top().f; pq.pop();
bug(v, d[v]);
if (d[v] != w) {
continue;
}
for (pii u : g[v]) {
if (d[u.f] > d[v] + u.s) {
d[u.f] = d[v] + u.s;
pq.push({d[u.f], u.f});
}
}
}
if (d[T] != 0x3f3f3f3f)
cout<<d[T]<<endl;
else cout<<-1<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
512 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
4 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
512 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
4 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
7 ms |
512 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
512 KB |
Output is correct |
14 |
Correct |
7 ms |
512 KB |
Output is correct |
15 |
Correct |
7 ms |
512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
4 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
7 ms |
512 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
512 KB |
Output is correct |
14 |
Correct |
8 ms |
512 KB |
Output is correct |
15 |
Correct |
7 ms |
512 KB |
Output is correct |
16 |
Correct |
6 ms |
384 KB |
Output is correct |
17 |
Correct |
15 ms |
768 KB |
Output is correct |
18 |
Correct |
15 ms |
512 KB |
Output is correct |
19 |
Correct |
11 ms |
512 KB |
Output is correct |
20 |
Correct |
86 ms |
32632 KB |
Output is correct |
21 |
Correct |
8 ms |
512 KB |
Output is correct |
22 |
Correct |
12 ms |
512 KB |
Output is correct |
23 |
Correct |
14 ms |
512 KB |
Output is correct |
24 |
Correct |
26 ms |
632 KB |
Output is correct |
25 |
Correct |
28 ms |
632 KB |
Output is correct |
26 |
Correct |
7 ms |
512 KB |
Output is correct |
27 |
Correct |
9 ms |
512 KB |
Output is correct |
28 |
Correct |
28 ms |
760 KB |
Output is correct |
29 |
Correct |
17 ms |
1280 KB |
Output is correct |
30 |
Correct |
8 ms |
768 KB |
Output is correct |
31 |
Correct |
14 ms |
828 KB |
Output is correct |
32 |
Correct |
12 ms |
768 KB |
Output is correct |
33 |
Correct |
34 ms |
1912 KB |
Output is correct |
34 |
Correct |
34 ms |
1912 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
5 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
5 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
7 ms |
512 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
512 KB |
Output is correct |
14 |
Correct |
7 ms |
512 KB |
Output is correct |
15 |
Correct |
7 ms |
512 KB |
Output is correct |
16 |
Correct |
6 ms |
512 KB |
Output is correct |
17 |
Correct |
13 ms |
768 KB |
Output is correct |
18 |
Correct |
15 ms |
512 KB |
Output is correct |
19 |
Correct |
12 ms |
512 KB |
Output is correct |
20 |
Correct |
86 ms |
32632 KB |
Output is correct |
21 |
Correct |
8 ms |
512 KB |
Output is correct |
22 |
Correct |
12 ms |
512 KB |
Output is correct |
23 |
Correct |
14 ms |
512 KB |
Output is correct |
24 |
Correct |
26 ms |
640 KB |
Output is correct |
25 |
Correct |
28 ms |
768 KB |
Output is correct |
26 |
Correct |
7 ms |
512 KB |
Output is correct |
27 |
Correct |
9 ms |
512 KB |
Output is correct |
28 |
Correct |
28 ms |
768 KB |
Output is correct |
29 |
Correct |
17 ms |
1280 KB |
Output is correct |
30 |
Correct |
8 ms |
768 KB |
Output is correct |
31 |
Correct |
14 ms |
896 KB |
Output is correct |
32 |
Correct |
12 ms |
768 KB |
Output is correct |
33 |
Correct |
35 ms |
2048 KB |
Output is correct |
34 |
Correct |
34 ms |
1920 KB |
Output is correct |
35 |
Correct |
225 ms |
3448 KB |
Output is correct |
36 |
Correct |
36 ms |
888 KB |
Output is correct |
37 |
Correct |
234 ms |
4716 KB |
Output is correct |
38 |
Correct |
353 ms |
4728 KB |
Output is correct |
39 |
Correct |
358 ms |
4856 KB |
Output is correct |
40 |
Correct |
356 ms |
4668 KB |
Output is correct |
41 |
Correct |
358 ms |
4592 KB |
Output is correct |
42 |
Correct |
11 ms |
768 KB |
Output is correct |
43 |
Correct |
13 ms |
640 KB |
Output is correct |
44 |
Correct |
90 ms |
32760 KB |
Output is correct |
45 |
Correct |
374 ms |
6520 KB |
Output is correct |
46 |
Correct |
374 ms |
6652 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
4 ms |
384 KB |
Output is correct |
3 |
Correct |
5 ms |
384 KB |
Output is correct |
4 |
Correct |
5 ms |
416 KB |
Output is correct |
5 |
Correct |
4 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
5 ms |
384 KB |
Output is correct |
8 |
Correct |
4 ms |
384 KB |
Output is correct |
9 |
Correct |
5 ms |
384 KB |
Output is correct |
10 |
Correct |
5 ms |
384 KB |
Output is correct |
11 |
Correct |
7 ms |
640 KB |
Output is correct |
12 |
Correct |
5 ms |
384 KB |
Output is correct |
13 |
Correct |
5 ms |
512 KB |
Output is correct |
14 |
Correct |
7 ms |
512 KB |
Output is correct |
15 |
Correct |
7 ms |
640 KB |
Output is correct |
16 |
Correct |
6 ms |
512 KB |
Output is correct |
17 |
Correct |
14 ms |
768 KB |
Output is correct |
18 |
Correct |
15 ms |
512 KB |
Output is correct |
19 |
Correct |
11 ms |
512 KB |
Output is correct |
20 |
Correct |
86 ms |
32632 KB |
Output is correct |
21 |
Correct |
8 ms |
512 KB |
Output is correct |
22 |
Correct |
12 ms |
512 KB |
Output is correct |
23 |
Correct |
14 ms |
512 KB |
Output is correct |
24 |
Correct |
27 ms |
640 KB |
Output is correct |
25 |
Correct |
28 ms |
664 KB |
Output is correct |
26 |
Correct |
7 ms |
512 KB |
Output is correct |
27 |
Correct |
8 ms |
512 KB |
Output is correct |
28 |
Correct |
29 ms |
768 KB |
Output is correct |
29 |
Correct |
17 ms |
1280 KB |
Output is correct |
30 |
Correct |
8 ms |
768 KB |
Output is correct |
31 |
Correct |
13 ms |
896 KB |
Output is correct |
32 |
Correct |
12 ms |
768 KB |
Output is correct |
33 |
Correct |
35 ms |
1912 KB |
Output is correct |
34 |
Correct |
35 ms |
1912 KB |
Output is correct |
35 |
Correct |
223 ms |
3476 KB |
Output is correct |
36 |
Correct |
36 ms |
888 KB |
Output is correct |
37 |
Correct |
232 ms |
4600 KB |
Output is correct |
38 |
Correct |
352 ms |
4600 KB |
Output is correct |
39 |
Correct |
359 ms |
4984 KB |
Output is correct |
40 |
Correct |
359 ms |
4728 KB |
Output is correct |
41 |
Correct |
355 ms |
4588 KB |
Output is correct |
42 |
Correct |
11 ms |
768 KB |
Output is correct |
43 |
Correct |
12 ms |
640 KB |
Output is correct |
44 |
Correct |
92 ms |
32760 KB |
Output is correct |
45 |
Correct |
381 ms |
6660 KB |
Output is correct |
46 |
Correct |
373 ms |
6520 KB |
Output is correct |
47 |
Runtime error |
5 ms |
640 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
48 |
Halted |
0 ms |
0 KB |
- |