# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
244530 |
2020-07-04T09:17:47 Z |
arnold518 |
Price List (POI13_cen) |
C++14 |
|
4000 ms |
15448 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 2e5;
const ll INF = 1e15;
int N, M, K, A, B;
pii E[MAXN+10];
vector<int> adj[MAXN/2+10], adj2[MAXN/2+10];
ll dist1[MAXN+10], dist2[MAXN+10];
bool vis1[MAXN+10], vis2[MAXN+10];
struct Queue
{
int v, w, p;
};
bool f(int u, int v) { return binary_search(adj2[u].begin(), adj2[u].end(), v); }
int main()
{
int i, j;
scanf("%d%d%d%d%d", &N, &M, &K, &A, &B);
for(i=1; i<=M; i++)
{
int u, v;
scanf("%d%d", &u, &v);
adj[u].push_back(v);
adj[v].push_back(u);
adj2[u].push_back(v);
adj2[v].push_back(u);
}
for(i=1; i<=N; i++) sort(adj2[i].begin(), adj2[i].end());
for(i=1; i<=N; i++) dist1[i]=dist2[i]=INF;
queue<Queue> Q;
Q.push({K, 0, 0}); vis1[K]=1; dist1[K]=0;
while(!Q.empty())
{
Queue now=Q.front(); Q.pop();
for(auto nxt : adj[now.v])
{
if(vis1[nxt]) continue;
dist1[nxt]=now.w+1;
vis1[nxt]=true;
Q.push({nxt, now.w+1, 0});
}
}
Q.push({K, 0, -1}); vis2[K]=1; dist2[K]=0;
while(!Q.empty())
{
Queue now=Q.front(); Q.pop();
if(now.p==-1)
{
for(auto nxt : adj[now.v])
{
Q.push({nxt, now.w, now.v});
}
}
else
{
for(auto &nxt : adj[now.v])
{
if(vis2[nxt]) continue;
if(f(nxt, now.p)) continue;
Q.push({nxt, now.w+1, -1});
vis2[nxt]=true;
dist2[nxt]=now.w+1;
//nxt=-1;
}
for(i=adj[now.v].size()-1; i>=0; i--)
{
if(adj[now.v][i]!=-1) continue;
swap(adj[now.v][i], adj[now.v].back());
adj[now.v].pop_back();
}
}
}
for(i=1; i<=N; i++)
{
if(dist1[i]%2==0) printf("%lld\n", min(dist1[i]*A, dist1[i]/2*B));
else printf("%lld\n", min({dist1[i]*A, dist1[i]/2*B+A, dist2[i]*B}));
}
}
Compilation message
cen.cpp: In function 'int main()':
cen.cpp:27:9: warning: unused variable 'j' [-Wunused-variable]
int i, j;
^
cen.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d%d%d", &N, &M, &K, &A, &B);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cen.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &u, &v);
~~~~~^~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
4992 KB |
Output is correct |
2 |
Correct |
7 ms |
4992 KB |
Output is correct |
3 |
Correct |
8 ms |
4992 KB |
Output is correct |
4 |
Correct |
7 ms |
4992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
7 ms |
4992 KB |
Output is correct |
2 |
Correct |
8 ms |
4992 KB |
Output is correct |
3 |
Correct |
7 ms |
4992 KB |
Output is correct |
4 |
Correct |
7 ms |
4992 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
5120 KB |
Output is correct |
2 |
Correct |
8 ms |
5120 KB |
Output is correct |
3 |
Correct |
10 ms |
5120 KB |
Output is correct |
4 |
Correct |
8 ms |
5064 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
6136 KB |
Output is correct |
2 |
Correct |
33 ms |
6144 KB |
Output is correct |
3 |
Correct |
21 ms |
6144 KB |
Output is correct |
4 |
Correct |
21 ms |
6272 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
771 ms |
8824 KB |
Output is correct |
2 |
Correct |
748 ms |
8952 KB |
Output is correct |
3 |
Correct |
42 ms |
7672 KB |
Output is correct |
4 |
Correct |
60 ms |
9208 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
771 ms |
11608 KB |
Output is correct |
2 |
Correct |
302 ms |
10744 KB |
Output is correct |
3 |
Correct |
112 ms |
11384 KB |
Output is correct |
4 |
Correct |
128 ms |
12024 KB |
Output is correct |
5 |
Correct |
2261 ms |
13168 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1287 ms |
12840 KB |
Output is correct |
2 |
Correct |
115 ms |
10872 KB |
Output is correct |
3 |
Correct |
128 ms |
11520 KB |
Output is correct |
4 |
Correct |
120 ms |
12128 KB |
Output is correct |
5 |
Correct |
2922 ms |
14024 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
832 ms |
14200 KB |
Output is correct |
2 |
Correct |
291 ms |
13176 KB |
Output is correct |
3 |
Correct |
142 ms |
12152 KB |
Output is correct |
4 |
Correct |
121 ms |
12152 KB |
Output is correct |
5 |
Correct |
3397 ms |
14960 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
299 ms |
13432 KB |
Output is correct |
2 |
Correct |
285 ms |
13560 KB |
Output is correct |
3 |
Correct |
138 ms |
12536 KB |
Output is correct |
4 |
Correct |
119 ms |
12152 KB |
Output is correct |
5 |
Correct |
3659 ms |
15448 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
114 ms |
13816 KB |
Output is correct |
2 |
Correct |
118 ms |
13816 KB |
Output is correct |
3 |
Correct |
157 ms |
13892 KB |
Output is correct |
4 |
Correct |
125 ms |
12280 KB |
Output is correct |
5 |
Execution timed out |
4062 ms |
14960 KB |
Time limit exceeded |