#include<bits/stdc++.h>
using namespace std;
#define maxn 100005
#define pii pair<int,int>
vector<pii> edge[maxn];
int n,m,c[maxn],st,num=0,ans[maxn];
bool check[maxn],visited[maxn];
bool dfs(int u,int par){
bool ok=false;visited[u]=true;
for(pii x:edge[u]){
int v=x.first;
if(v==par) continue;
if(visited[v]){st=v;ok=true;}
else if(dfs(v,u)) ok=true;
}
if(ok){check[u]=true;num++;}
if(st==u){st=0;return false;}
if(ok) return true;
return false;
}
void dfs2(int u,int par){
for(pii v:edge[u]){
if(v.first==par || check[v.first]) continue;
dfs2(v.first,u);
ans[v.second]=c[v.first];
c[u]+=c[v.first];
}
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);cout.tie(NULL);
cin >> n >> m;
if(m>n){
cout << 0 << '\n';
return 0;
}
for(int i=1;i<=n;i++) cin >> c[i];
for(int i=1;i<=m;i++){
int u,v;cin >> u >> v;
edge[u].push_back({v,i});
edge[v].push_back({u,i});
}
dfs(1,0);
if(num%2==0 && m==n){
cout << 0 << '\n';
return 0;
}
for(int i=1;i<=n;i++){
if(check[i]) dfs2(i,0);
}
if(m!=n) dfs2(1,0);
int cur=0,u=0;
for(int i=1;i<=n;i++){
if(check[i]){cur=i;u=i;break;}
}
while(true){
for(pii v:edge[u]){
if(check[v.first]){
ans[v.second]=c[u];
c[v.first]+=c[u];
u=v.first;
break;
}
}
if(u==cur) break;
}
for(int i=1;i<=m;i++) cout << ans[i]*2 << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
2644 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
2644 KB |
Output isn't correct |
| 3 |
Incorrect |
5 ms |
2696 KB |
Output isn't correct |
| 4 |
Incorrect |
88 ms |
7640 KB |
Output isn't correct |
| 5 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 6 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 7 |
Incorrect |
3 ms |
2648 KB |
Output isn't correct |
| 8 |
Incorrect |
2 ms |
2668 KB |
Output isn't correct |
| 9 |
Incorrect |
3 ms |
2644 KB |
Output isn't correct |
| 10 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 11 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 12 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 13 |
Incorrect |
46 ms |
6668 KB |
Output isn't correct |
| 14 |
Incorrect |
76 ms |
7392 KB |
Output isn't correct |
| 15 |
Incorrect |
202 ms |
7756 KB |
Output isn't correct |
| 16 |
Incorrect |
49 ms |
6888 KB |
Output isn't correct |
| 17 |
Incorrect |
69 ms |
7728 KB |
Output isn't correct |
| 18 |
Incorrect |
60 ms |
7628 KB |
Output isn't correct |
| 19 |
Incorrect |
62 ms |
11168 KB |
Output isn't correct |
| 20 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 21 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 22 |
Incorrect |
54 ms |
7756 KB |
Output isn't correct |
| 23 |
Incorrect |
48 ms |
6692 KB |
Output isn't correct |
| 24 |
Incorrect |
67 ms |
7764 KB |
Output isn't correct |
| 25 |
Incorrect |
61 ms |
6840 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
2656 KB |
Output isn't correct |
| 2 |
Incorrect |
2 ms |
2772 KB |
Output isn't correct |
| 3 |
Correct |
47 ms |
9876 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
2644 KB |
Output isn't correct |
| 8 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 9 |
Incorrect |
4 ms |
2644 KB |
Output isn't correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 14 |
Incorrect |
2 ms |
2652 KB |
Output isn't correct |
| 15 |
Incorrect |
2 ms |
2772 KB |
Output isn't correct |
| 16 |
Incorrect |
2 ms |
2656 KB |
Output isn't correct |
| 17 |
Correct |
4 ms |
2656 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2644 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 21 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 22 |
Incorrect |
3 ms |
2696 KB |
Output isn't correct |
| 23 |
Incorrect |
66 ms |
10448 KB |
Output isn't correct |
| 24 |
Incorrect |
102 ms |
11480 KB |
Output isn't correct |
| 25 |
Correct |
73 ms |
9864 KB |
Output is correct |
| 26 |
Correct |
3 ms |
2644 KB |
Output is correct |
| 27 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 29 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 30 |
Incorrect |
68 ms |
13116 KB |
Output isn't correct |
| 31 |
Incorrect |
102 ms |
13868 KB |
Output isn't correct |
| 32 |
Incorrect |
94 ms |
8976 KB |
Output isn't correct |
| 33 |
Correct |
78 ms |
10820 KB |
Output is correct |
| 34 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 35 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 36 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 37 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 38 |
Incorrect |
114 ms |
13004 KB |
Output isn't correct |
| 39 |
Incorrect |
96 ms |
8464 KB |
Output isn't correct |
| 40 |
Incorrect |
63 ms |
10440 KB |
Output isn't correct |
| 41 |
Correct |
65 ms |
13236 KB |
Output is correct |
| 42 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 43 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 44 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 45 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 46 |
Incorrect |
76 ms |
14644 KB |
Output isn't correct |
| 47 |
Incorrect |
59 ms |
10504 KB |
Output isn't correct |
| 48 |
Incorrect |
59 ms |
13644 KB |
Output isn't correct |
| 49 |
Incorrect |
65 ms |
8572 KB |
Output isn't correct |
| 50 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 51 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 52 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 53 |
Correct |
1 ms |
2644 KB |
Output is correct |
| 54 |
Incorrect |
82 ms |
12364 KB |
Output isn't correct |
