QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #103175 | #5073. Elden Ring | lonytree# | WA | 237ms | 15552kb | C++14 | 2.7kb | 2023-05-04 17:27:26 | 2023-05-04 17:27:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std; const int maxn = 2e5 + 5; typedef long long ll;
int n, m, A, B;
vector<int> G[maxn];
int l[maxn];
int lev[maxn];
priority_queue<pair<int, int> > q; bool vs[maxn];
int at[maxn];
vector<int> tg[maxn];
inline void insert(int u, int t)
{
if (vs[u]) return;
vs[u] = 1;
if (at[u] > n) return;
tg[max(t + 1, at[u])].push_back(u);
}
queue<int> Q;
inline void solve()
{
scanf("%d%d%d%d", &n, &m, &A, &B);
for (int i = 1; i <= n; i++) G[i].clear(), vs[i] = 0;
for (int i = 1, u, v; i <= m; i++) scanf("%d%d", &u, &v), G[u].push_back(v), G[v].push_back(u);
for (int i = 1; i <= n; i++) scanf("%d", l + i);
if (A <= B)
{
memset(lev, 63, sizeof(int) * (n + 1));
lev[1] = 0;
q.push({ 0, 1 });
while (q.size())
{
int u = q.top().second; q.pop(); if (vs[u]) continue; vs[u] = 1;
for (int v : G[u])
{
int nt = lev[u] + 1;
if (nt < lev[v] && l[v] + (ll)B * nt < l[1] + (ll)A * (nt - 1))
{
q.push({ -(lev[v] = nt), v });
}
}
}
if (lev[n] < 1e9)
{
printf("%d\n", lev[n]);
}
else
{
puts("-1");
}
}
else
{
for (int i = 2; i <= n; i++) at[i] = (l[i] + B <= l[1] ? 1 : 1 + (l[i] - l[1] + B + (A - B) - 1) / (A - B)); //, cerr << at[i] << ' '; cerr << endl;
memset(lev, 63, sizeof(int) * (n + 1));
lev[1] = 0;
q.push({ 0, 1 });
while (q.size())
{
int u = q.top().second; q.pop(); if (vs[u]) continue; vs[u] = 1;
for (int v : G[u])
{
int nt = max(at[v], lev[u] + 1);
if (nt < lev[v])
{
q.push({ -(lev[v] = nt), v });
}
}
}
memset(vs, 0, sizeof(bool) * (n + 1));
vs[1] = 1;
int ti = lev[n];
if (ti > n)
{
puts("-1");
return;
}
for (int i = 0; i <= n; i++) tg[i].clear();
for (int v : G[1]) insert(v, 0);
for (int i = 1; i < ti; i++)
{
for (int x : tg[i]) Q.push(x);
if (!Q.size())
{
puts("-1");
return;
}
int u = Q.front(); Q.pop();
for (int v : G[u]) if (!vs[v]) insert(v, i);
}
while (Q.size()) Q.pop();
printf("%d\n", ti);
}
}
int main()
{
int Tt; scanf("%d", &Tt); while (Tt--) solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 9ms
memory: 15484kb
input:
2 5 4 5 8 1 2 1 3 1 4 4 5 15 1 1 1 1 5 4 10 5 1 2 1 3 1 4 4 5 10 4 4 4 19
output:
2 4
result:
ok 2 number(s): "2 4"
Test #2:
score: 0
Accepted
time: 214ms
memory: 15476kb
input:
100000 6 10 107812 105568 6 5 3 6 4 6 4 2 5 1 5 6 4 5 1 3 1 2 2 5 124065 140875 29890 80077 116532 35394 9 10 82107 88302 1 2 2 3 5 3 5 1 1 4 9 6 3 5 8 2 5 6 7 5 22670 3735 33660 92823 139960 89319 83335 158330 117349 6 10 181257 173221 5 3 3 4 3 1 5 1 2 1 3 6 3 1 6 2 3 6 4 3 76902 46253 123092 2661...
output:
-1 -1 -1 1 -1 -1 -1 -1 -1 -1 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 2 -1 -1 -1 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 1 1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 2 -1 -1 -1 -1 -1 ...
result:
ok 100000 numbers
Test #3:
score: 0
Accepted
time: 237ms
memory: 15532kb
input:
100000 10 10 7791 61545 9 3 3 10 7 4 2 1 3 4 2 6 8 2 2 3 5 2 3 2 142757 98694 34871 181188 28671 62924 172723 13856 11576 26661 10 10 194165 132103 2 5 8 7 3 1 7 3 1 2 6 1 4 9 1 3 4 3 10 4 176824 47360 148701 4531 66460 199228 135267 149448 65763 125940 9 10 152778 128023 3 1 3 2 1 2 1 6 5 7 5 2 4 7...
output:
-1 -1 7 -1 -1 -1 -1 -1 -1 4 -1 -1 -1 -1 -1 -1 -1 2 -1 -1 -1 -1 -1 -1 -1 -1 1 -1 1 -1 -1 -1 -1 -1 -1 4 -1 -1 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 1 1 -1 1 4 -1 -1 -1 -1 -1 -1 -1 -1 -1 2 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 -1 -1 -1 -1 1 3 -1 -1 1 1 -1 -1 -1 5 1 -1 -1 -1 -1 -1 -1 -1 -...
result:
ok 100000 numbers
Test #4:
score: 0
Accepted
time: 237ms
memory: 15536kb
input:
10000 95 100 88670 88078 80 65 52 30 18 23 62 56 2 1 11 20 69 32 65 35 44 92 38 14 81 89 19 3 15 46 2 24 85 6 8 21 59 51 27 17 17 33 25 23 44 12 63 57 29 9 36 34 9 81 3 8 41 11 58 93 42 15 12 15 17 14 16 73 21 60 94 21 87 5 6 67 91 43 18 8 23 54 83 69 82 79 23 95 26 47 46 8 22 21 9 5 30 5 50 14 56 5...
output:
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 -1 -1 -1 -1 -1 6 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1...
result:
ok 10000 numbers
Test #5:
score: 0
Accepted
time: 231ms
memory: 15496kb
input:
10000 55 100 45240 42375 2 30 41 35 44 42 20 27 25 7 43 22 14 12 25 48 2 1 48 39 22 55 28 4 13 21 2 5 27 2 18 42 18 52 34 13 50 6 6 47 6 5 37 5 35 36 31 23 12 24 1 44 9 3 9 1 7 35 26 45 44 48 27 49 40 43 34 9 43 47 26 42 49 28 53 31 11 32 8 6 22 27 23 32 6 54 1 16 22 11 34 20 21 44 31 2 9 22 23 5 1 ...
output:
-1 -1 -1 4 5 -1 6 -1 13 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 7 -1 -1 4 -1 12 -1 -1 -1 -1 -1 -1 -1 4 -1 -1 1 18 -1 14 5 5 -1 -1 3 2 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 -1 -1 -1 -1 14 15 -1 -1 -1 -1 -1 -1 -...
result:
ok 10000 numbers
Test #6:
score: -100
Wrong Answer
time: 203ms
memory: 15552kb
input:
10000 78 100 3273 35629 51 26 12 13 60 57 67 56 34 9 7 44 3 6 63 5 6 75 49 36 63 36 9 10 10 20 8 16 58 29 10 41 4 5 4 78 35 70 68 72 11 3 20 66 18 2 14 25 21 22 52 18 21 23 24 43 51 32 19 49 38 37 28 54 9 73 24 30 21 32 10 40 4 29 4 67 55 32 27 33 38 39 13 37 4 68 20 26 73 37 60 67 4 9 15 41 12 1 2 ...
output:
-1 2 -1 -1 -1 -1 -1 3 -1 -1 6 2 -1 -1 -1 -1 -1 4 -1 -1 17 -1 5 5 8 -1 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 -1 2 -1 -1 -1 -1 -1 -1 -1 -1 2 9 -1 -1 6 -1 -1 -1 -1 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 3 -1 -1 3 6 5 -1 -1 3 -1 -1 -1 -1 3 3 -1 4 -1 -1 5 -1 -1 -1 -1 -1 4 -1 -1 -1 -1 -1 -1 -1 -1 7 7 -1 -1 3 -1 -1 -1 1...
result:
wrong answer 3678th numbers differ - expected: '-1', found: '5'