/// In The Name Of God
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define pp pop_back
#define mp make_pair
#define sz(x) (int)x.size()
#define sqr(x) ((x) * 1ll * (x))
#define all(x) x.begin(), x.end()
#define Kazakhstan ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define nl '\n'
#define ioi exit(0);
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const int N = (int)3e4 + 7;
const int inf = (int)1e9 + 7;
const int mod = (int)1e9 + 7;
const ll linf = (ll)1e18 + 7;
const int dx[] = {-1, 0, 1, 0, 1, -1, -1, 1};
const int dy[] = {0, 1, 0, -1, 1, -1, 1, -1};
using namespace std;
int n, m;
int sta, fn;
int b[N], p[N];
vector < pair <int, int> > g[N];
vector <int> a[N], dv[N];
ll d[N];
int main() {
#ifdef IOI2018
freopen ("in.txt", "r", stdin);
#endif
Kazakhstan
cin >> n >> m;
for (int i = 1; i <= m; i++) {
cin >> b[i] >> p[i];
a[b[i]].pb(p[i]);
if (i == 1) sta = b[i];
if (i == 2) fn = b[i];
}
for (int i = 0; i < n; i++) {
if (sz(a[i])) sort(all(a[i]));
}
for (int i = 30000; i >= 1; i--) {
for (int j = i; j <= 30000; j += i) {
dv[j].pb(i);
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (i == j) continue;
int df = abs(i - j);
for (auto it : dv[df]) {
if (binary_search(all(a[i]), it)) {
g[i].pb({j, df / it});
break;
}
}
}
}
set < pair <ll, int > > st;
memset(d, 0x3f, sizeof(d));
st.insert({0, sta});
d[sta] = 0;
while (sz(st)) {
pair <ll, int> v = *st.begin();
st.erase(st.begin());
for (auto to : g[v.s]) {
if (d[to.f] > v.f + to.s) {
st.erase({d[to.f], to.f});
d[to.f] = v.f + to.s;
st.insert({d[to.f], to.f});
}
}
}
if (d[fn] >= linf) cout << -1;
else cout << d[fn];
ioi
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
20 ms |
4856 KB |
Output is correct |
2 |
Correct |
18 ms |
4960 KB |
Output is correct |
3 |
Correct |
18 ms |
5012 KB |
Output is correct |
4 |
Correct |
18 ms |
5084 KB |
Output is correct |
5 |
Correct |
17 ms |
5084 KB |
Output is correct |
6 |
Correct |
21 ms |
5084 KB |
Output is correct |
7 |
Correct |
19 ms |
5120 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
5156 KB |
Output is correct |
2 |
Correct |
18 ms |
5156 KB |
Output is correct |
3 |
Correct |
20 ms |
5156 KB |
Output is correct |
4 |
Correct |
19 ms |
5156 KB |
Output is correct |
5 |
Correct |
20 ms |
5156 KB |
Output is correct |
6 |
Correct |
23 ms |
5156 KB |
Output is correct |
7 |
Correct |
19 ms |
5156 KB |
Output is correct |
8 |
Correct |
19 ms |
5156 KB |
Output is correct |
9 |
Correct |
21 ms |
5156 KB |
Output is correct |
10 |
Correct |
21 ms |
5156 KB |
Output is correct |
11 |
Correct |
21 ms |
5292 KB |
Output is correct |
12 |
Correct |
20 ms |
5292 KB |
Output is correct |
13 |
Correct |
21 ms |
5292 KB |
Output is correct |
14 |
Correct |
18 ms |
5292 KB |
Output is correct |
15 |
Correct |
21 ms |
5292 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
5292 KB |
Output is correct |
2 |
Correct |
18 ms |
5292 KB |
Output is correct |
3 |
Correct |
19 ms |
5292 KB |
Output is correct |
4 |
Correct |
19 ms |
5292 KB |
Output is correct |
5 |
Correct |
17 ms |
5292 KB |
Output is correct |
6 |
Correct |
18 ms |
5292 KB |
Output is correct |
7 |
Correct |
17 ms |
5292 KB |
Output is correct |
8 |
Correct |
17 ms |
5292 KB |
Output is correct |
9 |
Correct |
20 ms |
5292 KB |
Output is correct |
10 |
Correct |
21 ms |
5292 KB |
Output is correct |
11 |
Correct |
24 ms |
5356 KB |
Output is correct |
12 |
Correct |
19 ms |
5356 KB |
Output is correct |
13 |
Correct |
20 ms |
5356 KB |
Output is correct |
14 |
Correct |
20 ms |
5356 KB |
Output is correct |
15 |
Correct |
19 ms |
5356 KB |
Output is correct |
16 |
Correct |
25 ms |
5356 KB |
Output is correct |
17 |
Correct |
71 ms |
5356 KB |
Output is correct |
18 |
Correct |
267 ms |
5356 KB |
Output is correct |
19 |
Correct |
339 ms |
5356 KB |
Output is correct |
20 |
Correct |
427 ms |
37532 KB |
Output is correct |
21 |
Correct |
34 ms |
37532 KB |
Output is correct |
22 |
Correct |
276 ms |
37532 KB |
Output is correct |
23 |
Correct |
249 ms |
37532 KB |
Output is correct |
24 |
Correct |
335 ms |
37532 KB |
Output is correct |
25 |
Correct |
416 ms |
37532 KB |
Output is correct |
26 |
Correct |
335 ms |
37532 KB |
Output is correct |
27 |
Correct |
339 ms |
37532 KB |
Output is correct |
28 |
Correct |
401 ms |
37532 KB |
Output is correct |
29 |
Correct |
323 ms |
37532 KB |
Output is correct |
30 |
Correct |
334 ms |
37532 KB |
Output is correct |
31 |
Correct |
324 ms |
37532 KB |
Output is correct |
32 |
Correct |
323 ms |
37532 KB |
Output is correct |
33 |
Correct |
325 ms |
37532 KB |
Output is correct |
34 |
Correct |
328 ms |
37532 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
20 ms |
37532 KB |
Output is correct |
2 |
Correct |
19 ms |
37532 KB |
Output is correct |
3 |
Correct |
20 ms |
37532 KB |
Output is correct |
4 |
Correct |
20 ms |
37532 KB |
Output is correct |
5 |
Correct |
28 ms |
37532 KB |
Output is correct |
6 |
Correct |
18 ms |
37532 KB |
Output is correct |
7 |
Correct |
18 ms |
37532 KB |
Output is correct |
8 |
Correct |
18 ms |
37532 KB |
Output is correct |
9 |
Correct |
20 ms |
37532 KB |
Output is correct |
10 |
Correct |
21 ms |
37532 KB |
Output is correct |
11 |
Correct |
29 ms |
37532 KB |
Output is correct |
12 |
Correct |
19 ms |
37532 KB |
Output is correct |
13 |
Correct |
23 ms |
37532 KB |
Output is correct |
14 |
Correct |
20 ms |
37532 KB |
Output is correct |
15 |
Correct |
21 ms |
37532 KB |
Output is correct |
16 |
Correct |
26 ms |
37532 KB |
Output is correct |
17 |
Correct |
77 ms |
37532 KB |
Output is correct |
18 |
Correct |
298 ms |
37532 KB |
Output is correct |
19 |
Correct |
343 ms |
37532 KB |
Output is correct |
20 |
Correct |
421 ms |
37532 KB |
Output is correct |
21 |
Correct |
34 ms |
37532 KB |
Output is correct |
22 |
Correct |
284 ms |
37532 KB |
Output is correct |
23 |
Correct |
248 ms |
37532 KB |
Output is correct |
24 |
Correct |
341 ms |
37532 KB |
Output is correct |
25 |
Correct |
379 ms |
37532 KB |
Output is correct |
26 |
Correct |
330 ms |
37532 KB |
Output is correct |
27 |
Correct |
328 ms |
37532 KB |
Output is correct |
28 |
Correct |
391 ms |
37532 KB |
Output is correct |
29 |
Correct |
348 ms |
37532 KB |
Output is correct |
30 |
Correct |
332 ms |
37532 KB |
Output is correct |
31 |
Correct |
314 ms |
37532 KB |
Output is correct |
32 |
Correct |
330 ms |
37532 KB |
Output is correct |
33 |
Correct |
328 ms |
37532 KB |
Output is correct |
34 |
Correct |
322 ms |
37532 KB |
Output is correct |
35 |
Correct |
294 ms |
37532 KB |
Output is correct |
36 |
Correct |
136 ms |
37532 KB |
Output is correct |
37 |
Correct |
498 ms |
37532 KB |
Output is correct |
38 |
Correct |
545 ms |
37532 KB |
Output is correct |
39 |
Correct |
554 ms |
37532 KB |
Output is correct |
40 |
Correct |
520 ms |
37532 KB |
Output is correct |
41 |
Correct |
520 ms |
37532 KB |
Output is correct |
42 |
Correct |
327 ms |
37532 KB |
Output is correct |
43 |
Correct |
310 ms |
37532 KB |
Output is correct |
44 |
Correct |
399 ms |
39956 KB |
Output is correct |
45 |
Correct |
340 ms |
39956 KB |
Output is correct |
46 |
Correct |
350 ms |
39956 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
20 ms |
39956 KB |
Output is correct |
2 |
Correct |
25 ms |
39956 KB |
Output is correct |
3 |
Correct |
24 ms |
39956 KB |
Output is correct |
4 |
Correct |
19 ms |
39956 KB |
Output is correct |
5 |
Correct |
19 ms |
39956 KB |
Output is correct |
6 |
Correct |
17 ms |
39956 KB |
Output is correct |
7 |
Correct |
18 ms |
39956 KB |
Output is correct |
8 |
Correct |
19 ms |
39956 KB |
Output is correct |
9 |
Correct |
18 ms |
39956 KB |
Output is correct |
10 |
Correct |
26 ms |
39956 KB |
Output is correct |
11 |
Correct |
20 ms |
39956 KB |
Output is correct |
12 |
Correct |
27 ms |
39956 KB |
Output is correct |
13 |
Correct |
19 ms |
39956 KB |
Output is correct |
14 |
Correct |
21 ms |
39956 KB |
Output is correct |
15 |
Correct |
18 ms |
39956 KB |
Output is correct |
16 |
Correct |
26 ms |
39956 KB |
Output is correct |
17 |
Correct |
72 ms |
39956 KB |
Output is correct |
18 |
Correct |
289 ms |
39956 KB |
Output is correct |
19 |
Correct |
340 ms |
39956 KB |
Output is correct |
20 |
Correct |
441 ms |
40000 KB |
Output is correct |
21 |
Correct |
29 ms |
40000 KB |
Output is correct |
22 |
Correct |
274 ms |
40000 KB |
Output is correct |
23 |
Correct |
233 ms |
40000 KB |
Output is correct |
24 |
Correct |
340 ms |
40000 KB |
Output is correct |
25 |
Correct |
354 ms |
40000 KB |
Output is correct |
26 |
Correct |
307 ms |
40000 KB |
Output is correct |
27 |
Correct |
341 ms |
40000 KB |
Output is correct |
28 |
Correct |
376 ms |
40000 KB |
Output is correct |
29 |
Correct |
315 ms |
40000 KB |
Output is correct |
30 |
Correct |
305 ms |
40000 KB |
Output is correct |
31 |
Correct |
313 ms |
40000 KB |
Output is correct |
32 |
Correct |
310 ms |
40000 KB |
Output is correct |
33 |
Correct |
313 ms |
40000 KB |
Output is correct |
34 |
Correct |
318 ms |
40000 KB |
Output is correct |
35 |
Correct |
279 ms |
40000 KB |
Output is correct |
36 |
Correct |
131 ms |
40000 KB |
Output is correct |
37 |
Correct |
472 ms |
40000 KB |
Output is correct |
38 |
Correct |
521 ms |
40000 KB |
Output is correct |
39 |
Correct |
546 ms |
40000 KB |
Output is correct |
40 |
Correct |
561 ms |
40000 KB |
Output is correct |
41 |
Correct |
526 ms |
40000 KB |
Output is correct |
42 |
Correct |
317 ms |
40000 KB |
Output is correct |
43 |
Correct |
311 ms |
40000 KB |
Output is correct |
44 |
Correct |
405 ms |
42132 KB |
Output is correct |
45 |
Correct |
333 ms |
42132 KB |
Output is correct |
46 |
Correct |
338 ms |
42132 KB |
Output is correct |
47 |
Execution timed out |
1065 ms |
42132 KB |
Time limit exceeded |
48 |
Halted |
0 ms |
0 KB |
- |