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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#414291#2543. Edges, Colors and MSTKevin5307WA 2ms9668kbC++231.7kb2024-05-18 20:21:272024-05-18 20:21:29

Judging History

你现在查看的是最新测评结果

  • [2024-05-18 20:21:29]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:9668kb
  • [2024-05-18 20:21:27]
  • 提交

answer

//Author: Kevin
#include<bits/stdc++.h>
//#pragma GCC optimize("O2")
using namespace std;
#define ll long long
#define ull unsigned ll
#define pb emplace_back
#define mp make_pair
#define ALL(x) (x).begin(),(x).end()
#define rALL(x) (x).rbegin(),(x).rend()
#define srt(x) sort(ALL(x))
#define rev(x) reverse(ALL(x))
#define rsrt(x) sort(rALL(x))
#define sz(x) (int)(x.size())
#define inf 0x3f3f3f3f
#define pii pair<int,int>
#define lb(v,x) (int)(lower_bound(ALL(v),x)-v.begin())
#define ub(v,x) (int)(upper_bound(ALL(v),x)-v.begin())
#define uni(v) v.resize(unique(ALL(v))-v.begin())
#define longer __int128_t
void die(string S){puts(S.c_str());exit(0);}
int n,m;
vector<pii> G[200200];
int u[200200],v[200200],c[200200];
int depth[200200],f[200200],fa[200200],fe[200200];
int ans[200200];
vector<vector<int>> vec;
inline int anc(int x)
{
	while(fa[x]!=x) x=fa[x]=fa[fa[x]];
	return x;
}
void dfs(int u,int fa)
{
	depth[u]=depth[fa]+1;
	f[u]=fa;
	for(auto pr:G[u])
		if(pr.first!=fa)
		{
			dfs(pr.first,u);
			fe[pr.first]=pr.second;
		}
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	for(int i=1;i<=m;i++)
	{
		cin>>u[i]>>v[i]>>c[i];
		if(c[i])
		{
			G[u[i]].pb(v[i],i);
			G[v[i]].pb(u[i],i);
		}
	}
	for(int i=1;i<=n;i++)
		fa[i]=i;
	dfs(1,0);
	int cur=0,cur2=0;
	for(int i=1;i<=m;i++)
		if(!c[i])
		{
			vector<int> ve;
			int a=u[i],b=v[i];
			a=anc(a);
			b=anc(b);
			while(a!=b)
			{
				if(depth[a]<depth[b]) swap(a,b);
				ve.pb(fe[a]);
				fa[a]=f[a];
				a=anc(a);
			}
			srt(ve);
			for(auto x:ve)
				ans[x]=++cur;
			ans[i]=++cur;
		}
	for(int i=1;i<=m;i++)
		cout<<ans[i]<<" ";
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 2ms
memory: 9668kb

input:

4 5
1 2 0
2 3 1
3 4 1
2 4 0
1 3 1

output:

3 1 4 5 2 

result:

ok 5 number(s): "3 1 4 5 2"

Test #2:

score: -100
Wrong Answer
time: 0ms
memory: 9668kb

input:

9 15
1 4 1
3 5 1
3 9 0
1 3 0
2 5 0
5 8 0
6 9 0
8 9 0
1 7 1
1 8 1
6 8 1
4 9 1
2 4 1
3 4 1
4 6 0

output:

4 6 3 5 8 10 12 13 0 9 11 1 7 2 14 

result:

wrong answer 1st numbers differ - expected: '1', found: '4'