QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#76332 | #2543. Edges, Colors and MST | Linshey# | WA | 4ms | 13984kb | C++14 | 1.3kb | 2023-02-09 09:33:12 | 2023-02-09 09:33:14 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std; const int maxn = 2e5 + 5; typedef long long ll;
int n, m, su[maxn], sv[maxn], sc[maxn];
struct edge { int v, w; }; vector<edge> T[maxn];
int P[maxn], M;
int fa[maxn], dep[maxn], a[maxn];
void DFS(int u, int f)
{
fa[u] = f;
dep[u] = dep[f] + 1;
for (auto e : T[u]) if (e.v != f) a[e.v] = e.w, DFS(e.v, u);
}
int g[maxn];
inline int find(int u) { while (u != g[u]) u = g[u] = g[g[u]]; return u; }
int b[maxn], c;
int main()
{
scanf("%d%d", &n, &m);
for (int i = 1; i <= m; i++)
{
scanf("%d%d%d", su + i, sv + i, sc + i);
if (sc[i] == 1)
{
T[su[i]].push_back({ sv[i], i });
T[sv[i]].push_back({ su[i], i });
}
}
DFS(1, 0);
for (int i = 1; i <= n; i++) g[i] = i;
for (int i = 1; i <= m; i++) if (sc[i] == 0)
{
c = 0;
for (int u = su[i], v = sv[i]; (u = find(u)) != (v = find(v)); )
{
if (dep[u] < dep[v]) b[++c] = a[v], g[v] = fa[v];
else b[++c] = a[u], g[u] = fa[u];
}
sort(b + 1, b + c + 1);
for (int j = 1; j <= c; j++) P[b[j]] = ++M;
P[i] = ++M;
}
for (int i = 1; i <= m; i++) printf("%d ", P[i]); puts("");
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 13984kb
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: 4ms
memory: 13756kb
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'