# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
988479 |
2024-05-24T20:04:11 Z |
HoriaHaivas |
Race (IOI11_race) |
C++14 |
|
2703 ms |
126096 KB |
/*
"care a facut teste cu Lattice reduction attack e ciudat"
"linistiti va putin"
- 2023 -
*/
#include<bits/stdc++.h>
#include "race.h"
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast")
#define int long long
using namespace std;
struct edge
{
int to;
int cost;
};
int n,k;
int ans;
bool blocked[200001];
int sz[200001];
int h[200001][2];
int l[200001];
vector<edge> nodes[200001];
unordered_map<int,int> f;
void recalc(int node, int parent)
{
sz[node]=1;
for (auto x : nodes[node])
{
if (x.to!=parent && !blocked[x.to])
{
recalc(x.to,node);
sz[node]+=sz[x.to];
}
}
}
int find_centroid(int compsize, int node, int parent)
{
for (auto x : nodes[node])
{
if (x.to!=parent && !blocked[x.to] && sz[x.to]>compsize/2)
return find_centroid(compsize,x.to,node);
}
return node;
}
void dfs(int node, int parent, int cost, int len)
{
if (f.find(k-cost)!=f.end())
ans=min(ans,len+f[k-cost]);
for (auto x : nodes[node])
{
if (x.to!=parent && !blocked[x.to])
dfs(x.to,node,cost+x.cost,len+1);
}
}
void update(int node, int parent, int cost, int len)
{
f[cost]=min(f[cost],len);
for (auto x : nodes[node])
{
if (x.to!=parent && !blocked[x.to])
update(x.to,node,cost+x.cost,len+1);
}
}
void rem(int node, int parent, int cost)
{
f[cost]=n+1;
for (auto x : nodes[node])
{
if (x.to!=parent && !blocked[x.to])
rem(x.to,node,cost+x.cost);
}
}
void solve(int node)
{
int c,i;
recalc(node,-1);
c=find_centroid(sz[node],node,-1);
blocked[c]=1;
f[0]=0;
for (auto x : nodes[c])
{
if (!blocked[x.to])
{
dfs(x.to,c,x.cost,1);
update(x.to,c,x.cost,1);
}
}
for (auto x : nodes[c])
{
if (!blocked[x.to])
{
rem(x.to,c,x.cost);
}
}
for (auto x : nodes[c])
{
if (!blocked[x.to])
{
solve(x.to);
}
}
}
signed best_path(signed N, signed K, signed H[][2], signed L[])
{
int i,j,c,x,y;
n=N;
k=K;
for (i=0;i<=k;i++)
f[i]=n+1;
for (i=0; i<n; i++)
{
x=H[i][0];
y=H[i][1];
x++;
y++;
c=L[i];
nodes[x].push_back({y,c});
nodes[y].push_back({x,c});
}
ans=n+1;
solve(1);
if (ans!=n+1)
return ans;
else
return -1;
}
Compilation message
race.cpp: In function 'void solve(long long int)':
race.cpp:86:11: warning: unused variable 'i' [-Wunused-variable]
86 | int c,i;
| ^
race.cpp: In function 'int best_path(int, int, int (*)[2], int*)':
race.cpp:117:11: warning: unused variable 'j' [-Wunused-variable]
117 | int i,j,c,x,y;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4956 KB |
Output is correct |
2 |
Correct |
3 ms |
4956 KB |
Output is correct |
3 |
Correct |
3 ms |
4956 KB |
Output is correct |
4 |
Correct |
3 ms |
4956 KB |
Output is correct |
5 |
Correct |
3 ms |
4956 KB |
Output is correct |
6 |
Correct |
3 ms |
4956 KB |
Output is correct |
7 |
Correct |
3 ms |
4956 KB |
Output is correct |
8 |
Correct |
3 ms |
4956 KB |
Output is correct |
9 |
Correct |
3 ms |
4952 KB |
Output is correct |
10 |
Correct |
3 ms |
4956 KB |
Output is correct |
11 |
Correct |
3 ms |
4956 KB |
Output is correct |
12 |
Correct |
3 ms |
4956 KB |
Output is correct |
13 |
Correct |
3 ms |
5036 KB |
Output is correct |
14 |
Correct |
3 ms |
4956 KB |
Output is correct |
15 |
Correct |
3 ms |
4956 KB |
Output is correct |
16 |
Correct |
3 ms |
4956 KB |
Output is correct |
17 |
Correct |
3 ms |
4956 KB |
Output is correct |
18 |
Correct |
3 ms |
4956 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4956 KB |
Output is correct |
2 |
Correct |
3 ms |
4956 KB |
Output is correct |
3 |
Correct |
3 ms |
4956 KB |
Output is correct |
4 |
Correct |
3 ms |
4956 KB |
Output is correct |
5 |
Correct |
3 ms |
4956 KB |
Output is correct |
6 |
Correct |
3 ms |
4956 KB |
Output is correct |
7 |
Correct |
3 ms |
4956 KB |
Output is correct |
8 |
Correct |
3 ms |
4956 KB |
Output is correct |
9 |
Correct |
3 ms |
4952 KB |
Output is correct |
10 |
Correct |
3 ms |
4956 KB |
Output is correct |
11 |
Correct |
3 ms |
4956 KB |
Output is correct |
12 |
Correct |
3 ms |
4956 KB |
Output is correct |
13 |
Correct |
3 ms |
5036 KB |
Output is correct |
14 |
Correct |
3 ms |
4956 KB |
Output is correct |
15 |
Correct |
3 ms |
4956 KB |
Output is correct |
16 |
Correct |
3 ms |
4956 KB |
Output is correct |
17 |
Correct |
3 ms |
4956 KB |
Output is correct |
18 |
Correct |
3 ms |
4956 KB |
Output is correct |
19 |
Correct |
4 ms |
4952 KB |
Output is correct |
20 |
Correct |
3 ms |
4956 KB |
Output is correct |
21 |
Correct |
3 ms |
5212 KB |
Output is correct |
22 |
Correct |
66 ms |
45488 KB |
Output is correct |
23 |
Correct |
59 ms |
44288 KB |
Output is correct |
24 |
Correct |
65 ms |
44308 KB |
Output is correct |
25 |
Correct |
64 ms |
44224 KB |
Output is correct |
26 |
Correct |
28 ms |
18736 KB |
Output is correct |
27 |
Correct |
60 ms |
44184 KB |
Output is correct |
28 |
Correct |
18 ms |
14544 KB |
Output is correct |
29 |
Correct |
24 ms |
18052 KB |
Output is correct |
30 |
Correct |
31 ms |
24272 KB |
Output is correct |
31 |
Correct |
44 ms |
31172 KB |
Output is correct |
32 |
Correct |
48 ms |
32964 KB |
Output is correct |
33 |
Correct |
58 ms |
44240 KB |
Output is correct |
34 |
Correct |
42 ms |
29376 KB |
Output is correct |
35 |
Correct |
62 ms |
44224 KB |
Output is correct |
36 |
Correct |
68 ms |
45572 KB |
Output is correct |
37 |
Correct |
60 ms |
44368 KB |
Output is correct |
38 |
Correct |
38 ms |
26576 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4956 KB |
Output is correct |
2 |
Correct |
3 ms |
4956 KB |
Output is correct |
3 |
Correct |
3 ms |
4956 KB |
Output is correct |
4 |
Correct |
3 ms |
4956 KB |
Output is correct |
5 |
Correct |
3 ms |
4956 KB |
Output is correct |
6 |
Correct |
3 ms |
4956 KB |
Output is correct |
7 |
Correct |
3 ms |
4956 KB |
Output is correct |
8 |
Correct |
3 ms |
4956 KB |
Output is correct |
9 |
Correct |
3 ms |
4952 KB |
Output is correct |
10 |
Correct |
3 ms |
4956 KB |
Output is correct |
11 |
Correct |
3 ms |
4956 KB |
Output is correct |
12 |
Correct |
3 ms |
4956 KB |
Output is correct |
13 |
Correct |
3 ms |
5036 KB |
Output is correct |
14 |
Correct |
3 ms |
4956 KB |
Output is correct |
15 |
Correct |
3 ms |
4956 KB |
Output is correct |
16 |
Correct |
3 ms |
4956 KB |
Output is correct |
17 |
Correct |
3 ms |
4956 KB |
Output is correct |
18 |
Correct |
3 ms |
4956 KB |
Output is correct |
19 |
Correct |
157 ms |
12120 KB |
Output is correct |
20 |
Correct |
155 ms |
12112 KB |
Output is correct |
21 |
Correct |
148 ms |
12116 KB |
Output is correct |
22 |
Correct |
147 ms |
12408 KB |
Output is correct |
23 |
Correct |
117 ms |
12628 KB |
Output is correct |
24 |
Correct |
69 ms |
11860 KB |
Output is correct |
25 |
Correct |
143 ms |
17948 KB |
Output is correct |
26 |
Correct |
115 ms |
23548 KB |
Output is correct |
27 |
Correct |
185 ms |
20052 KB |
Output is correct |
28 |
Correct |
1382 ms |
82760 KB |
Output is correct |
29 |
Correct |
1110 ms |
77944 KB |
Output is correct |
30 |
Correct |
187 ms |
20052 KB |
Output is correct |
31 |
Correct |
179 ms |
20052 KB |
Output is correct |
32 |
Correct |
345 ms |
20128 KB |
Output is correct |
33 |
Correct |
284 ms |
19028 KB |
Output is correct |
34 |
Correct |
2703 ms |
126096 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4956 KB |
Output is correct |
2 |
Correct |
3 ms |
4956 KB |
Output is correct |
3 |
Correct |
3 ms |
4956 KB |
Output is correct |
4 |
Correct |
3 ms |
4956 KB |
Output is correct |
5 |
Correct |
3 ms |
4956 KB |
Output is correct |
6 |
Correct |
3 ms |
4956 KB |
Output is correct |
7 |
Correct |
3 ms |
4956 KB |
Output is correct |
8 |
Correct |
3 ms |
4956 KB |
Output is correct |
9 |
Correct |
3 ms |
4952 KB |
Output is correct |
10 |
Correct |
3 ms |
4956 KB |
Output is correct |
11 |
Correct |
3 ms |
4956 KB |
Output is correct |
12 |
Correct |
3 ms |
4956 KB |
Output is correct |
13 |
Correct |
3 ms |
5036 KB |
Output is correct |
14 |
Correct |
3 ms |
4956 KB |
Output is correct |
15 |
Correct |
3 ms |
4956 KB |
Output is correct |
16 |
Correct |
3 ms |
4956 KB |
Output is correct |
17 |
Correct |
3 ms |
4956 KB |
Output is correct |
18 |
Correct |
3 ms |
4956 KB |
Output is correct |
19 |
Correct |
4 ms |
4952 KB |
Output is correct |
20 |
Correct |
3 ms |
4956 KB |
Output is correct |
21 |
Correct |
3 ms |
5212 KB |
Output is correct |
22 |
Correct |
66 ms |
45488 KB |
Output is correct |
23 |
Correct |
59 ms |
44288 KB |
Output is correct |
24 |
Correct |
65 ms |
44308 KB |
Output is correct |
25 |
Correct |
64 ms |
44224 KB |
Output is correct |
26 |
Correct |
28 ms |
18736 KB |
Output is correct |
27 |
Correct |
60 ms |
44184 KB |
Output is correct |
28 |
Correct |
18 ms |
14544 KB |
Output is correct |
29 |
Correct |
24 ms |
18052 KB |
Output is correct |
30 |
Correct |
31 ms |
24272 KB |
Output is correct |
31 |
Correct |
44 ms |
31172 KB |
Output is correct |
32 |
Correct |
48 ms |
32964 KB |
Output is correct |
33 |
Correct |
58 ms |
44240 KB |
Output is correct |
34 |
Correct |
42 ms |
29376 KB |
Output is correct |
35 |
Correct |
62 ms |
44224 KB |
Output is correct |
36 |
Correct |
68 ms |
45572 KB |
Output is correct |
37 |
Correct |
60 ms |
44368 KB |
Output is correct |
38 |
Correct |
38 ms |
26576 KB |
Output is correct |
39 |
Correct |
157 ms |
12120 KB |
Output is correct |
40 |
Correct |
155 ms |
12112 KB |
Output is correct |
41 |
Correct |
148 ms |
12116 KB |
Output is correct |
42 |
Correct |
147 ms |
12408 KB |
Output is correct |
43 |
Correct |
117 ms |
12628 KB |
Output is correct |
44 |
Correct |
69 ms |
11860 KB |
Output is correct |
45 |
Correct |
143 ms |
17948 KB |
Output is correct |
46 |
Correct |
115 ms |
23548 KB |
Output is correct |
47 |
Correct |
185 ms |
20052 KB |
Output is correct |
48 |
Correct |
1382 ms |
82760 KB |
Output is correct |
49 |
Correct |
1110 ms |
77944 KB |
Output is correct |
50 |
Correct |
187 ms |
20052 KB |
Output is correct |
51 |
Correct |
179 ms |
20052 KB |
Output is correct |
52 |
Correct |
345 ms |
20128 KB |
Output is correct |
53 |
Correct |
284 ms |
19028 KB |
Output is correct |
54 |
Correct |
2703 ms |
126096 KB |
Output is correct |
55 |
Correct |
13 ms |
6492 KB |
Output is correct |
56 |
Correct |
13 ms |
5888 KB |
Output is correct |
57 |
Correct |
87 ms |
12884 KB |
Output is correct |
58 |
Correct |
34 ms |
12740 KB |
Output is correct |
59 |
Correct |
122 ms |
32380 KB |
Output is correct |
60 |
Correct |
743 ms |
84736 KB |
Output is correct |
61 |
Correct |
190 ms |
22192 KB |
Output is correct |
62 |
Correct |
267 ms |
64748 KB |
Output is correct |
63 |
Correct |
390 ms |
64728 KB |
Output is correct |
64 |
Correct |
1066 ms |
42060 KB |
Output is correct |
65 |
Correct |
2292 ms |
102200 KB |
Output is correct |
66 |
Correct |
1666 ms |
114928 KB |
Output is correct |
67 |
Correct |
184 ms |
64496 KB |
Output is correct |
68 |
Correct |
748 ms |
68972 KB |
Output is correct |
69 |
Correct |
774 ms |
69672 KB |
Output is correct |
70 |
Correct |
646 ms |
71216 KB |
Output is correct |