# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
284702 |
2020-08-27T22:12:54 Z |
ScarletS |
Pipes (BOI13_pipes) |
C++17 |
|
1000 ms |
131072 KB |
#include <bits/stdc++.h>
#define ll long long
#define sz(x) (int)(x).size()
#define pii pair<int,int>
using namespace std;
const int MAXN = 100001;
stack<pii> edges[MAXN];
int score[MAXN],amount[MAXN],x;
ll cur[MAXN],t;
int ans[5*MAXN];
bool done[MAXN];
vector<int> circle;
void dfs(int c)
{
done[c]=1;
circle.push_back(c);
while (sz(edges[c]))
{
if (done[edges[c].top().first])
edges[c].pop();
else
dfs(edges[c].top().first);
}
}
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
int n,m,u,v;
cin>>n>>m;
map<pii,int> vals;
for (int i = 1; i <= n; ++i)
cin>>score[i];
for (int i = 0; i < m; ++i)
{
cin>>u>>v;
edges[u].push({v,i});
edges[v].push({u,i});
vals[{u,v}]=i;
vals[{v,u}]=i;
++amount[u];
++amount[v];
}
if (m>n)
{
cout<<"0\n";
return 0;
}
stack<int> s;
for (int i=1;i<=n;++i)
if (amount[i]==1)
s.push(i);
while (sz(s))
{
++x;
u=s.top();
s.pop();
while (done[edges[u].top().first])
edges[u].pop();
v=edges[u].top().first;
ans[edges[u].top().second]=score[u]-cur[u];
cur[u]+=ans[edges[u].top().second];
cur[v]+=ans[edges[u].top().second];
//ans[edges[u].top().second]<<=1;
}
if (m==n-1)
{
for (int i=0;i<m;++i)
cout<<ans[i]*2<<"\n";
return 0;
}
if ((n-x+1)&1)
{
cout<<"0\n";
return 0;
}
for (int i=1;i<=n;++i)
{
while (sz(edges[u])&&done[edges[u].top().first])
edges[u].pop();
if (sz(edges[u]))
x=u;
}
dfs(x);
/**for (int i : circle)
cout<<i<<" ";
cout<<"\n";**/
for (int i=0;i<sz(circle);++i)
{
//cout<<"nigga\n";
if (i&1)
t-=score[circle[i]];
else
t+=score[circle[i]];
}
//cout<<"t="<<t<<"\n";
ans[vals[{circle[0],circle.back()}]]=t/2;
ans[vals[{circle[0],circle[1]}]]=score[circle[0]]-ans[vals[{circle[0],circle.back()}]];
for (int i=1;i+1<sz(circle);++i)
{
//cout<<"ans[vals[{"<<circle[i]<<","<<circle[i+1]<<"}] = "<<score[circle[i]]<<" - "<<ans[vals[{circle[i],circle[i-1]}]]<<"\n";
ans[vals[{circle[i],circle[i+1]}]]=score[circle[i]]-ans[vals[{circle[i],circle[i-1]}]];
}
for (int i=0;i<m;++i)
cout<<ans[i]*2<<"\n";
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
52 ms |
67704 KB |
Output isn't correct |
2 |
Incorrect |
55 ms |
67704 KB |
Output isn't correct |
3 |
Incorrect |
59 ms |
67832 KB |
Output isn't correct |
4 |
Incorrect |
238 ms |
84232 KB |
Output isn't correct |
5 |
Incorrect |
55 ms |
67704 KB |
Output isn't correct |
6 |
Incorrect |
58 ms |
67704 KB |
Output isn't correct |
7 |
Incorrect |
54 ms |
67744 KB |
Output isn't correct |
8 |
Incorrect |
56 ms |
67704 KB |
Output isn't correct |
9 |
Incorrect |
55 ms |
67832 KB |
Output isn't correct |
10 |
Incorrect |
54 ms |
67832 KB |
Output isn't correct |
11 |
Incorrect |
53 ms |
67832 KB |
Output isn't correct |
12 |
Incorrect |
54 ms |
67832 KB |
Output isn't correct |
13 |
Incorrect |
197 ms |
80760 KB |
Output isn't correct |
14 |
Incorrect |
227 ms |
83340 KB |
Output isn't correct |
15 |
Incorrect |
236 ms |
84268 KB |
Output isn't correct |
16 |
Incorrect |
198 ms |
81784 KB |
Output isn't correct |
17 |
Incorrect |
247 ms |
84300 KB |
Output isn't correct |
18 |
Incorrect |
231 ms |
84284 KB |
Output isn't correct |
19 |
Incorrect |
241 ms |
83960 KB |
Output isn't correct |
20 |
Incorrect |
52 ms |
67704 KB |
Output isn't correct |
21 |
Incorrect |
53 ms |
67832 KB |
Output isn't correct |
22 |
Incorrect |
233 ms |
84216 KB |
Output isn't correct |
23 |
Incorrect |
211 ms |
80836 KB |
Output isn't correct |
24 |
Incorrect |
241 ms |
84344 KB |
Output isn't correct |
25 |
Incorrect |
201 ms |
81528 KB |
Output isn't correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
54 ms |
67704 KB |
Output isn't correct |
2 |
Incorrect |
55 ms |
67832 KB |
Output isn't correct |
3 |
Incorrect |
386 ms |
89584 KB |
Output isn't correct |
4 |
Correct |
217 ms |
82688 KB |
Output is correct |
5 |
Correct |
205 ms |
82168 KB |
Output is correct |
6 |
Execution timed out |
1097 ms |
131072 KB |
Time limit exceeded |
7 |
Incorrect |
51 ms |
67704 KB |
Output isn't correct |
8 |
Incorrect |
52 ms |
67704 KB |
Output isn't correct |
9 |
Incorrect |
51 ms |
67704 KB |
Output isn't correct |
10 |
Correct |
52 ms |
67652 KB |
Output is correct |
11 |
Correct |
54 ms |
67704 KB |
Output is correct |
12 |
Correct |
56 ms |
67832 KB |
Output is correct |
13 |
Correct |
53 ms |
67704 KB |
Output is correct |
14 |
Incorrect |
52 ms |
67704 KB |
Output isn't correct |
15 |
Incorrect |
53 ms |
67832 KB |
Output isn't correct |
16 |
Incorrect |
53 ms |
67960 KB |
Output isn't correct |
17 |
Correct |
54 ms |
67960 KB |
Output is correct |
18 |
Correct |
54 ms |
67864 KB |
Output is correct |
19 |
Correct |
61 ms |
67960 KB |
Output is correct |
20 |
Correct |
53 ms |
67832 KB |
Output is correct |
21 |
Correct |
54 ms |
68088 KB |
Output is correct |
22 |
Incorrect |
55 ms |
67892 KB |
Output isn't correct |
23 |
Incorrect |
299 ms |
85908 KB |
Output isn't correct |
24 |
Incorrect |
389 ms |
90228 KB |
Output isn't correct |
25 |
Incorrect |
369 ms |
89580 KB |
Output isn't correct |
26 |
Correct |
232 ms |
82556 KB |
Output is correct |
27 |
Correct |
227 ms |
82424 KB |
Output is correct |
28 |
Correct |
267 ms |
83192 KB |
Output is correct |
29 |
Correct |
907 ms |
123640 KB |
Output is correct |
30 |
Incorrect |
380 ms |
89200 KB |
Output isn't correct |
31 |
Incorrect |
376 ms |
89748 KB |
Output isn't correct |
32 |
Incorrect |
239 ms |
83884 KB |
Output isn't correct |
33 |
Incorrect |
394 ms |
90268 KB |
Output isn't correct |
34 |
Correct |
221 ms |
82552 KB |
Output is correct |
35 |
Correct |
219 ms |
82552 KB |
Output is correct |
36 |
Correct |
211 ms |
82808 KB |
Output is correct |
37 |
Execution timed out |
1104 ms |
131072 KB |
Time limit exceeded |
38 |
Incorrect |
369 ms |
89468 KB |
Output isn't correct |
39 |
Incorrect |
388 ms |
90736 KB |
Output isn't correct |
40 |
Incorrect |
395 ms |
90384 KB |
Output isn't correct |
41 |
Incorrect |
360 ms |
89712 KB |
Output isn't correct |
42 |
Correct |
215 ms |
82524 KB |
Output is correct |
43 |
Correct |
228 ms |
82552 KB |
Output is correct |
44 |
Correct |
220 ms |
82296 KB |
Output is correct |
45 |
Correct |
991 ms |
129016 KB |
Output is correct |
46 |
Incorrect |
220 ms |
83696 KB |
Output isn't correct |
47 |
Incorrect |
223 ms |
83832 KB |
Output isn't correct |
48 |
Incorrect |
237 ms |
83832 KB |
Output isn't correct |
49 |
Correct |
215 ms |
82944 KB |
Output is correct |
50 |
Correct |
213 ms |
82552 KB |
Output is correct |
51 |
Correct |
212 ms |
82700 KB |
Output is correct |
52 |
Correct |
211 ms |
82256 KB |
Output is correct |
53 |
Execution timed out |
1059 ms |
130448 KB |
Time limit exceeded |
54 |
Incorrect |
370 ms |
89552 KB |
Output isn't correct |