/// 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 b[N], p[N];
vector < pair <int, int> > g[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];
}
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= min(5000, m); j++) {
if (i == j) continue;
if (abs(b[i] - b[j]) % p[i] == 0) {
g[i].pb({j, abs(b[i] - b[j]) / p[i]});
}
}
}
set < pair <ll, int > > st;
memset(d, 0x3f, sizeof(d));
st.insert({0, 1});
d[1] = 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[2] >= linf) cout << -1;
else cout << d[2];
ioi
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1308 KB |
Output is correct |
2 |
Correct |
2 ms |
1376 KB |
Output is correct |
3 |
Correct |
2 ms |
1448 KB |
Output is correct |
4 |
Correct |
2 ms |
1448 KB |
Output is correct |
5 |
Correct |
2 ms |
1560 KB |
Output is correct |
6 |
Correct |
2 ms |
1560 KB |
Output is correct |
7 |
Correct |
3 ms |
1560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
1560 KB |
Output is correct |
2 |
Correct |
3 ms |
1560 KB |
Output is correct |
3 |
Correct |
3 ms |
1560 KB |
Output is correct |
4 |
Correct |
2 ms |
1560 KB |
Output is correct |
5 |
Correct |
2 ms |
1560 KB |
Output is correct |
6 |
Correct |
2 ms |
1560 KB |
Output is correct |
7 |
Correct |
2 ms |
1560 KB |
Output is correct |
8 |
Correct |
2 ms |
1560 KB |
Output is correct |
9 |
Correct |
3 ms |
1560 KB |
Output is correct |
10 |
Correct |
4 ms |
1644 KB |
Output is correct |
11 |
Correct |
34 ms |
3696 KB |
Output is correct |
12 |
Correct |
87 ms |
33528 KB |
Output is correct |
13 |
Correct |
90 ms |
33772 KB |
Output is correct |
14 |
Correct |
34 ms |
33772 KB |
Output is correct |
15 |
Correct |
32 ms |
33772 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
33772 KB |
Output is correct |
2 |
Correct |
3 ms |
33772 KB |
Output is correct |
3 |
Correct |
2 ms |
33772 KB |
Output is correct |
4 |
Correct |
3 ms |
33772 KB |
Output is correct |
5 |
Correct |
2 ms |
33772 KB |
Output is correct |
6 |
Correct |
2 ms |
33772 KB |
Output is correct |
7 |
Correct |
2 ms |
33772 KB |
Output is correct |
8 |
Correct |
3 ms |
33772 KB |
Output is correct |
9 |
Correct |
2 ms |
33772 KB |
Output is correct |
10 |
Correct |
4 ms |
33772 KB |
Output is correct |
11 |
Correct |
33 ms |
33772 KB |
Output is correct |
12 |
Correct |
91 ms |
33772 KB |
Output is correct |
13 |
Correct |
85 ms |
33772 KB |
Output is correct |
14 |
Correct |
32 ms |
33772 KB |
Output is correct |
15 |
Correct |
33 ms |
33772 KB |
Output is correct |
16 |
Correct |
8 ms |
33772 KB |
Output is correct |
17 |
Correct |
25 ms |
33772 KB |
Output is correct |
18 |
Correct |
10 ms |
33772 KB |
Output is correct |
19 |
Correct |
4 ms |
33772 KB |
Output is correct |
20 |
Correct |
94 ms |
33876 KB |
Output is correct |
21 |
Correct |
12 ms |
33876 KB |
Output is correct |
22 |
Correct |
6 ms |
33876 KB |
Output is correct |
23 |
Correct |
9 ms |
33876 KB |
Output is correct |
24 |
Correct |
25 ms |
33876 KB |
Output is correct |
25 |
Correct |
26 ms |
33876 KB |
Output is correct |
26 |
Correct |
88 ms |
33876 KB |
Output is correct |
27 |
Correct |
90 ms |
33876 KB |
Output is correct |
28 |
Correct |
29 ms |
33876 KB |
Output is correct |
29 |
Correct |
7 ms |
33876 KB |
Output is correct |
30 |
Correct |
3 ms |
33876 KB |
Output is correct |
31 |
Correct |
7 ms |
33876 KB |
Output is correct |
32 |
Correct |
4 ms |
33876 KB |
Output is correct |
33 |
Correct |
33 ms |
33876 KB |
Output is correct |
34 |
Correct |
32 ms |
33876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
33876 KB |
Output is correct |
2 |
Correct |
2 ms |
33876 KB |
Output is correct |
3 |
Correct |
2 ms |
33876 KB |
Output is correct |
4 |
Correct |
2 ms |
33876 KB |
Output is correct |
5 |
Correct |
2 ms |
33876 KB |
Output is correct |
6 |
Correct |
2 ms |
33876 KB |
Output is correct |
7 |
Correct |
2 ms |
33876 KB |
Output is correct |
8 |
Correct |
3 ms |
33876 KB |
Output is correct |
9 |
Correct |
2 ms |
33876 KB |
Output is correct |
10 |
Correct |
4 ms |
33876 KB |
Output is correct |
11 |
Correct |
34 ms |
33876 KB |
Output is correct |
12 |
Correct |
91 ms |
33876 KB |
Output is correct |
13 |
Correct |
85 ms |
33876 KB |
Output is correct |
14 |
Correct |
33 ms |
33876 KB |
Output is correct |
15 |
Correct |
32 ms |
33876 KB |
Output is correct |
16 |
Correct |
7 ms |
33876 KB |
Output is correct |
17 |
Correct |
23 ms |
33876 KB |
Output is correct |
18 |
Correct |
8 ms |
33876 KB |
Output is correct |
19 |
Correct |
6 ms |
33876 KB |
Output is correct |
20 |
Correct |
86 ms |
33876 KB |
Output is correct |
21 |
Correct |
15 ms |
33876 KB |
Output is correct |
22 |
Correct |
5 ms |
33876 KB |
Output is correct |
23 |
Correct |
8 ms |
33876 KB |
Output is correct |
24 |
Correct |
24 ms |
33876 KB |
Output is correct |
25 |
Correct |
28 ms |
33876 KB |
Output is correct |
26 |
Correct |
79 ms |
33876 KB |
Output is correct |
27 |
Correct |
79 ms |
33876 KB |
Output is correct |
28 |
Correct |
26 ms |
33876 KB |
Output is correct |
29 |
Correct |
7 ms |
33876 KB |
Output is correct |
30 |
Correct |
2 ms |
33876 KB |
Output is correct |
31 |
Correct |
4 ms |
33876 KB |
Output is correct |
32 |
Correct |
4 ms |
33876 KB |
Output is correct |
33 |
Correct |
32 ms |
33876 KB |
Output is correct |
34 |
Correct |
32 ms |
33876 KB |
Output is correct |
35 |
Incorrect |
728 ms |
33876 KB |
Output isn't correct |
36 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
33876 KB |
Output is correct |
2 |
Correct |
2 ms |
33876 KB |
Output is correct |
3 |
Correct |
2 ms |
33876 KB |
Output is correct |
4 |
Correct |
2 ms |
33876 KB |
Output is correct |
5 |
Correct |
2 ms |
33876 KB |
Output is correct |
6 |
Correct |
2 ms |
33876 KB |
Output is correct |
7 |
Correct |
2 ms |
33876 KB |
Output is correct |
8 |
Correct |
3 ms |
33876 KB |
Output is correct |
9 |
Correct |
2 ms |
33876 KB |
Output is correct |
10 |
Correct |
5 ms |
33876 KB |
Output is correct |
11 |
Correct |
32 ms |
33876 KB |
Output is correct |
12 |
Correct |
83 ms |
33876 KB |
Output is correct |
13 |
Correct |
86 ms |
33876 KB |
Output is correct |
14 |
Correct |
34 ms |
33876 KB |
Output is correct |
15 |
Correct |
30 ms |
33876 KB |
Output is correct |
16 |
Correct |
7 ms |
33876 KB |
Output is correct |
17 |
Correct |
23 ms |
33876 KB |
Output is correct |
18 |
Correct |
8 ms |
33876 KB |
Output is correct |
19 |
Correct |
4 ms |
33876 KB |
Output is correct |
20 |
Correct |
86 ms |
33876 KB |
Output is correct |
21 |
Correct |
10 ms |
33876 KB |
Output is correct |
22 |
Correct |
5 ms |
33876 KB |
Output is correct |
23 |
Correct |
10 ms |
33876 KB |
Output is correct |
24 |
Correct |
23 ms |
33876 KB |
Output is correct |
25 |
Correct |
25 ms |
33876 KB |
Output is correct |
26 |
Correct |
80 ms |
33876 KB |
Output is correct |
27 |
Correct |
83 ms |
33876 KB |
Output is correct |
28 |
Correct |
25 ms |
33876 KB |
Output is correct |
29 |
Correct |
7 ms |
33876 KB |
Output is correct |
30 |
Correct |
2 ms |
33876 KB |
Output is correct |
31 |
Correct |
5 ms |
33876 KB |
Output is correct |
32 |
Correct |
4 ms |
33876 KB |
Output is correct |
33 |
Correct |
32 ms |
33876 KB |
Output is correct |
34 |
Correct |
33 ms |
33876 KB |
Output is correct |
35 |
Incorrect |
735 ms |
33876 KB |
Output isn't correct |
36 |
Halted |
0 ms |
0 KB |
- |