#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef __int128 lll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
#define MAX 9223372036854775807LL
#define MIN -9223372036854775807LL
#define INF 0x3f3f3f3f3f3f3f3f
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(10);
#define sp << " "
#define en << "\n"
#define compress(v) sort(v.begin(), v.end()), v.erase(unique(v.begin(), v.end()), v.end())
ll n;
pll a[200010];
ll q;
ll X;
vector<pll> vec[1000010], yuk[1000010];
ll num[1000010];
ll dist[1000010];
ll A[1000010], B[1000010];
ll siz;
ll ans[1000010];
void init(ll no, ll s, ll e)
{
siz = max(siz, no);
if(s == e)
{
num[s] = no;
return;
}
vec[no << 1].push_back({no, 0});
vec[no << 1 | 1].push_back({no, 0});
init(no << 1, s, (s + e) >> 1);
init(no << 1 | 1, ((s + e) >> 1) + 1, e);
}
void update(ll no, ll s, ll e, ll l, ll r, ll V)
{
if(e < l || r < s)
return;
if(l <= s && e <= r)
{
vec[no].push_back({V, 1});
return;
}
update(no << 1, s, (s + e) >> 1, l, r, V);
update(no << 1 | 1, ((s + e) >> 1) + 1, e, l, r, V);
}
void f(ll sta)
{
for(ll i = 0 ; i <= siz ; i++)
dist[i] = INF / (siz + 10);
deque<ll> dq;
dist[sta] = 0;
dq.push_back(sta);
while(!dq.empty())
{
ll qq = dq.front();
dq.pop_front();
for(auto &i : vec[qq])
{
if(dist[i.fi] > dist[qq] + i.se)
{
if(i.se == 0)
{
dist[i.fi] = dist[qq];
dq.push_front(i.fi);
}
else
{
dist[i.fi] = dist[qq] + 1;
dq.push_back(i.fi);
}
}
}
}
}
void f2(ll sta)
{
priority_queue<pll> pq;
for(ll i = 1 ; i <= siz ; i++)
dist[i] = INF;
dist[sta] = 0;
pq.push({0, sta});
while(!pq.empty())
{
pll qq = pq.top();
pq.pop();
for(auto &i : vec[qq.se])
{
if(dist[i.fi] > dist[qq.se] + i.se)
{
dist[i.fi] = dist[qq.se] + i.se;
pq.push({-dist[i.fi], i.fi});
}
}
}
}
int main(void)
{
fastio
cin >> n;
for(ll i = 1 ; i <= n ; i++)
cin >> a[i].fi >> a[i].se;
init(1, 1, n);
for(ll i = 1 ; i <= n ; i++)
update(1, 1, n, a[i].fi, a[i].se, num[i]);
f(num[1]);
for(ll i = 1 ; i <= siz ; i++)
A[i] = dist[i];
f(num[n]);
for(ll i = 1 ; i <= siz ; i++)
B[i] = dist[i];
for(ll i = 1 ; i <= n ; i++)
vec[siz + 1].push_back({num[i], max(A[num[i]] - 1, 0LL) + max(B[num[i]] - 1, 0LL) + 1});
siz++;
f2(siz);
for(ll i = 1 ; i <= siz ; i++)
ans[i] = dist[i];
cin >> q;
while(q--)
{
cin >> X;
if(ans[num[X]] >= INF / (siz + 10))
cout << -1 en;
else
cout << ans[num[X]] en;
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
16 ms |
55644 KB |
Output is correct |
2 |
Correct |
16 ms |
55644 KB |
Output is correct |
3 |
Correct |
15 ms |
55644 KB |
Output is correct |
4 |
Correct |
672 ms |
154748 KB |
Output is correct |
5 |
Correct |
288 ms |
115900 KB |
Output is correct |
6 |
Correct |
209 ms |
103688 KB |
Output is correct |
7 |
Correct |
130 ms |
100676 KB |
Output is correct |
8 |
Correct |
148 ms |
116800 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
55852 KB |
Output is correct |
2 |
Correct |
16 ms |
55640 KB |
Output is correct |
3 |
Correct |
16 ms |
55644 KB |
Output is correct |
4 |
Correct |
14 ms |
55644 KB |
Output is correct |
5 |
Correct |
15 ms |
55852 KB |
Output is correct |
6 |
Correct |
15 ms |
55644 KB |
Output is correct |
7 |
Correct |
16 ms |
55788 KB |
Output is correct |
8 |
Correct |
15 ms |
55864 KB |
Output is correct |
9 |
Correct |
15 ms |
55740 KB |
Output is correct |
10 |
Correct |
17 ms |
55640 KB |
Output is correct |
11 |
Correct |
14 ms |
55900 KB |
Output is correct |
12 |
Correct |
15 ms |
55900 KB |
Output is correct |
13 |
Correct |
14 ms |
55900 KB |
Output is correct |
14 |
Correct |
15 ms |
56148 KB |
Output is correct |
15 |
Correct |
14 ms |
55900 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
55852 KB |
Output is correct |
2 |
Correct |
16 ms |
55640 KB |
Output is correct |
3 |
Correct |
16 ms |
55644 KB |
Output is correct |
4 |
Correct |
14 ms |
55644 KB |
Output is correct |
5 |
Correct |
15 ms |
55852 KB |
Output is correct |
6 |
Correct |
15 ms |
55644 KB |
Output is correct |
7 |
Correct |
16 ms |
55788 KB |
Output is correct |
8 |
Correct |
15 ms |
55864 KB |
Output is correct |
9 |
Correct |
15 ms |
55740 KB |
Output is correct |
10 |
Correct |
17 ms |
55640 KB |
Output is correct |
11 |
Correct |
14 ms |
55900 KB |
Output is correct |
12 |
Correct |
15 ms |
55900 KB |
Output is correct |
13 |
Correct |
14 ms |
55900 KB |
Output is correct |
14 |
Correct |
15 ms |
56148 KB |
Output is correct |
15 |
Correct |
14 ms |
55900 KB |
Output is correct |
16 |
Correct |
18 ms |
56668 KB |
Output is correct |
17 |
Correct |
18 ms |
56412 KB |
Output is correct |
18 |
Correct |
19 ms |
56836 KB |
Output is correct |
19 |
Correct |
18 ms |
56892 KB |
Output is correct |
20 |
Correct |
16 ms |
56412 KB |
Output is correct |
21 |
Correct |
17 ms |
56412 KB |
Output is correct |
22 |
Correct |
16 ms |
56156 KB |
Output is correct |
23 |
Correct |
17 ms |
56408 KB |
Output is correct |
24 |
Correct |
17 ms |
56668 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
55852 KB |
Output is correct |
2 |
Correct |
16 ms |
55640 KB |
Output is correct |
3 |
Correct |
16 ms |
55644 KB |
Output is correct |
4 |
Correct |
14 ms |
55644 KB |
Output is correct |
5 |
Correct |
15 ms |
55852 KB |
Output is correct |
6 |
Correct |
15 ms |
55644 KB |
Output is correct |
7 |
Correct |
16 ms |
55788 KB |
Output is correct |
8 |
Correct |
15 ms |
55864 KB |
Output is correct |
9 |
Correct |
15 ms |
55740 KB |
Output is correct |
10 |
Correct |
17 ms |
55640 KB |
Output is correct |
11 |
Correct |
14 ms |
55900 KB |
Output is correct |
12 |
Correct |
15 ms |
55900 KB |
Output is correct |
13 |
Correct |
14 ms |
55900 KB |
Output is correct |
14 |
Correct |
15 ms |
56148 KB |
Output is correct |
15 |
Correct |
14 ms |
55900 KB |
Output is correct |
16 |
Correct |
18 ms |
56668 KB |
Output is correct |
17 |
Correct |
18 ms |
56412 KB |
Output is correct |
18 |
Correct |
19 ms |
56836 KB |
Output is correct |
19 |
Correct |
18 ms |
56892 KB |
Output is correct |
20 |
Correct |
16 ms |
56412 KB |
Output is correct |
21 |
Correct |
17 ms |
56412 KB |
Output is correct |
22 |
Correct |
16 ms |
56156 KB |
Output is correct |
23 |
Correct |
17 ms |
56408 KB |
Output is correct |
24 |
Correct |
17 ms |
56668 KB |
Output is correct |
25 |
Correct |
15 ms |
55640 KB |
Output is correct |
26 |
Correct |
14 ms |
55644 KB |
Output is correct |
27 |
Correct |
18 ms |
56792 KB |
Output is correct |
28 |
Correct |
17 ms |
56412 KB |
Output is correct |
29 |
Correct |
17 ms |
56408 KB |
Output is correct |
30 |
Correct |
20 ms |
56412 KB |
Output is correct |
31 |
Correct |
16 ms |
56412 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
16 ms |
55644 KB |
Output is correct |
2 |
Correct |
16 ms |
55644 KB |
Output is correct |
3 |
Correct |
15 ms |
55644 KB |
Output is correct |
4 |
Correct |
672 ms |
154748 KB |
Output is correct |
5 |
Correct |
288 ms |
115900 KB |
Output is correct |
6 |
Correct |
209 ms |
103688 KB |
Output is correct |
7 |
Correct |
130 ms |
100676 KB |
Output is correct |
8 |
Correct |
148 ms |
116800 KB |
Output is correct |
9 |
Correct |
15 ms |
55852 KB |
Output is correct |
10 |
Correct |
16 ms |
55640 KB |
Output is correct |
11 |
Correct |
16 ms |
55644 KB |
Output is correct |
12 |
Correct |
14 ms |
55644 KB |
Output is correct |
13 |
Correct |
15 ms |
55852 KB |
Output is correct |
14 |
Correct |
15 ms |
55644 KB |
Output is correct |
15 |
Correct |
16 ms |
55788 KB |
Output is correct |
16 |
Correct |
15 ms |
55864 KB |
Output is correct |
17 |
Correct |
15 ms |
55740 KB |
Output is correct |
18 |
Correct |
17 ms |
55640 KB |
Output is correct |
19 |
Correct |
14 ms |
55900 KB |
Output is correct |
20 |
Correct |
15 ms |
55900 KB |
Output is correct |
21 |
Correct |
14 ms |
55900 KB |
Output is correct |
22 |
Correct |
15 ms |
56148 KB |
Output is correct |
23 |
Correct |
14 ms |
55900 KB |
Output is correct |
24 |
Correct |
18 ms |
56668 KB |
Output is correct |
25 |
Correct |
18 ms |
56412 KB |
Output is correct |
26 |
Correct |
19 ms |
56836 KB |
Output is correct |
27 |
Correct |
18 ms |
56892 KB |
Output is correct |
28 |
Correct |
16 ms |
56412 KB |
Output is correct |
29 |
Correct |
17 ms |
56412 KB |
Output is correct |
30 |
Correct |
16 ms |
56156 KB |
Output is correct |
31 |
Correct |
17 ms |
56408 KB |
Output is correct |
32 |
Correct |
17 ms |
56668 KB |
Output is correct |
33 |
Correct |
15 ms |
55640 KB |
Output is correct |
34 |
Correct |
14 ms |
55644 KB |
Output is correct |
35 |
Correct |
18 ms |
56792 KB |
Output is correct |
36 |
Correct |
17 ms |
56412 KB |
Output is correct |
37 |
Correct |
17 ms |
56408 KB |
Output is correct |
38 |
Correct |
20 ms |
56412 KB |
Output is correct |
39 |
Correct |
16 ms |
56412 KB |
Output is correct |
40 |
Correct |
743 ms |
160252 KB |
Output is correct |
41 |
Correct |
318 ms |
117224 KB |
Output is correct |
42 |
Correct |
455 ms |
168324 KB |
Output is correct |
43 |
Correct |
418 ms |
168064 KB |
Output is correct |
44 |
Correct |
234 ms |
105408 KB |
Output is correct |
45 |
Correct |
313 ms |
118840 KB |
Output is correct |
46 |
Correct |
128 ms |
82724 KB |
Output is correct |
47 |
Correct |
393 ms |
125072 KB |
Output is correct |
48 |
Correct |
368 ms |
135596 KB |
Output is correct |