| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 128906 | 2019-07-11T10:52:41 Z | roseanne_pcy | Mergers (JOI19_mergers) | C++14 | 3000 ms | 25760 KB |
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
using namespace std;
#define X first
#define Y second
#define pb push_back
typedef pair<int, int> ii;
typedef long long ll;
const int maxn = 1e5+5;
int n, k;
vector<int> adj[maxn];
int col[maxn];
int colcnt[maxn];
int tar[maxn];
vector<int> bst[maxn];
int cnt[maxn];
bool bad[maxn];
bool notbad[maxn];
int par[maxn];
bool vis[maxn];
int om[maxn];
int chil[maxn];
void merge(vector<int> &A, vector<int> &B)
{
vector<int> res;
int n = A.size(), m = B.size();
int i = 0, j = 0;
while(i< n && j< m)
{
if(A[i]< B[j])
{
if(res.empty() || res.back() != A[i]) res.pb(A[i]);
i++;
}
else
{
if(res.empty() || res.back() != B[j]) res.pb(B[j]);
j++;
}
}
while(i< n)
{
if(res.empty() || res.back() != A[i]) res.pb(A[i]);
i++;
}
while(j< m)
{
if(res.empty() || res.back() != B[j]) res.pb(B[j]);
j++;
}
A = res;
}
void solve(int u = 1, int p = 0)
{
cnt[u] = 1;
ii big = {0, -1};
bst[u].push_back(col[u]);
tar[u] = 0;
par[u] = p;
for(int v : adj[u])
{
if(v == p) continue;
solve(v, u);
chil[u]++;
big = max(big, {bst[v].size(), v});
cnt[u] += cnt[v];
}
if(big.Y != -1)
{
int best = big.Y;
swap(bst[u], bst[best]);
for(int v : adj[u])
{
if(v == p) continue;
merge(bst[u], bst[v]);
}
}
for(int x : bst[u]) tar[u] += colcnt[x];
bad[u] = (tar[u] == cnt[u]);
}
int main()
{
scanf("%d %d", &n, &k);
for(int i = 0; i< n-1; i++)
{
int u, v; scanf("%d %d", &u, &v);
adj[u].pb(v); adj[v].pb(u);
}
for(int i = 1; i<= n; i++)
{
scanf("%d", &col[i]);
colcnt[col[i]]++;
}
solve();
queue<int> q;
for(int i = 2; i<= n; i++)
{
if(bad[i])
{
q.push(par[i]);
}
}
while(!q.empty())
{
int u = q.front(); q.pop();
notbad[u] = true;
int v = par[u];
if(!v) continue;
if(!vis[v])
{
vis[v] = true;
q.push(v);
}
}
int res = 0;
for(int i = 2; i<= n; i++)
{
if(bad[i] && !notbad[i])
{
res++;
om[par[i]]++;
}
}
for(int i = 1; i<= n; i++)
{
if(!chil[i]) q.push(i);
}
while(!q.empty())
{
int u = q.front(); q.pop();
int v = par[u];
if(!v) continue;
om[v] += om[u];
chil[v]--;
if(chil[v] == 0) q.push(v);
}
bool superbad = false;
for(int i = 2; i<= n; i++)
{
if(bad[i] && om[i] == res) superbad = true;
}
printf("%d\n", (res+superbad+1)/2);
}
Compilation message
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 6 ms | 4984 KB | Output is correct |
| 2 | Correct | 6 ms | 4984 KB | Output is correct |
| 3 | Correct | 6 ms | 5112 KB | Output is correct |
| 4 | Correct | 6 ms | 4984 KB | Output is correct |
| 5 | Correct | 6 ms | 5112 KB | Output is correct |
| 6 | Correct | 6 ms | 5112 KB | Output is correct |
| 7 | Correct | 6 ms | 4984 KB | Output is correct |
| 8 | Correct | 6 ms | 4984 KB | Output is correct |
| 9 | Correct | 6 ms | 5112 KB | Output is correct |
| 10 | Correct | 6 ms | 5112 KB | Output is correct |
| 11 | Correct | 6 ms | 5112 KB | Output is correct |
| 12 | Correct | 6 ms | 5112 KB | Output is correct |
| 13 | Correct | 6 ms | 4984 KB | Output is correct |
| 14 | Correct | 6 ms | 4984 KB | Output is correct |
| 15 | Correct | 6 ms | 5112 KB | Output is correct |
| 16 | Correct | 6 ms | 5112 KB | Output is correct |
| 17 | Correct | 6 ms | 5112 KB | Output is correct |
| 18 | Correct | 6 ms | 4984 KB | Output is correct |
| 19 | Correct | 6 ms | 5112 KB | Output is correct |
| 20 | Correct | 6 ms | 5112 KB | Output is correct |
| 21 | Correct | 6 ms | 5112 KB | Output is correct |
| 22 | Correct | 6 ms | 5112 KB | Output is correct |
| 23 | Correct | 6 ms | 5112 KB | Output is correct |
| 24 | Correct | 6 ms | 5084 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 6 ms | 4984 KB | Output is correct |
| 2 | Correct | 6 ms | 4984 KB | Output is correct |
| 3 | Correct | 6 ms | 5112 KB | Output is correct |
| 4 | Correct | 6 ms | 4984 KB | Output is correct |
| 5 | Correct | 6 ms | 5112 KB | Output is correct |
| 6 | Correct | 6 ms | 5112 KB | Output is correct |
| 7 | Correct | 6 ms | 4984 KB | Output is correct |
| 8 | Correct | 6 ms | 4984 KB | Output is correct |
| 9 | Correct | 6 ms | 5112 KB | Output is correct |
| 10 | Correct | 6 ms | 5112 KB | Output is correct |
| 11 | Correct | 6 ms | 5112 KB | Output is correct |
| 12 | Correct | 6 ms | 5112 KB | Output is correct |
| 13 | Correct | 6 ms | 4984 KB | Output is correct |
| 14 | Correct | 6 ms | 4984 KB | Output is correct |
| 15 | Correct | 6 ms | 5112 KB | Output is correct |
| 16 | Correct | 6 ms | 5112 KB | Output is correct |
| 17 | Correct | 6 ms | 5112 KB | Output is correct |
| 18 | Correct | 6 ms | 4984 KB | Output is correct |
| 19 | Correct | 6 ms | 5112 KB | Output is correct |
| 20 | Correct | 6 ms | 5112 KB | Output is correct |
| 21 | Correct | 6 ms | 5112 KB | Output is correct |
| 22 | Correct | 6 ms | 5112 KB | Output is correct |
| 23 | Correct | 6 ms | 5112 KB | Output is correct |
| 24 | Correct | 6 ms | 5084 KB | Output is correct |
| 25 | Correct | 6 ms | 5116 KB | Output is correct |
| 26 | Correct | 10 ms | 5368 KB | Output is correct |
| 27 | Correct | 8 ms | 5368 KB | Output is correct |
| 28 | Correct | 29 ms | 5624 KB | Output is correct |
| 29 | Correct | 10 ms | 5496 KB | Output is correct |
| 30 | Correct | 10 ms | 5368 KB | Output is correct |
| 31 | Correct | 6 ms | 5112 KB | Output is correct |
| 32 | Correct | 24 ms | 5628 KB | Output is correct |
| 33 | Correct | 6 ms | 5112 KB | Output is correct |
| 34 | Correct | 9 ms | 5368 KB | Output is correct |
| 35 | Correct | 11 ms | 5496 KB | Output is correct |
| 36 | Correct | 10 ms | 5368 KB | Output is correct |
| 37 | Correct | 10 ms | 5368 KB | Output is correct |
| 38 | Correct | 6 ms | 5112 KB | Output is correct |
| 39 | Correct | 10 ms | 5368 KB | Output is correct |
| 40 | Correct | 8 ms | 5368 KB | Output is correct |
| 41 | Correct | 8 ms | 5368 KB | Output is correct |
| 42 | Correct | 21 ms | 5368 KB | Output is correct |
| 43 | Correct | 9 ms | 5752 KB | Output is correct |
| 44 | Correct | 6 ms | 5112 KB | Output is correct |
| 45 | Correct | 17 ms | 5468 KB | Output is correct |
| 46 | Correct | 11 ms | 5368 KB | Output is correct |
| 47 | Correct | 6 ms | 4984 KB | Output is correct |
| 48 | Correct | 10 ms | 5372 KB | Output is correct |
| 49 | Correct | 28 ms | 5496 KB | Output is correct |
| 50 | Correct | 22 ms | 5496 KB | Output is correct |
| 51 | Correct | 9 ms | 5368 KB | Output is correct |
| 52 | Correct | 10 ms | 5368 KB | Output is correct |
| 53 | Correct | 21 ms | 5368 KB | Output is correct |
| 54 | Correct | 10 ms | 5392 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 6 ms | 4984 KB | Output is correct |
| 2 | Correct | 6 ms | 4984 KB | Output is correct |
| 3 | Correct | 6 ms | 5112 KB | Output is correct |
| 4 | Correct | 6 ms | 4984 KB | Output is correct |
| 5 | Correct | 6 ms | 5112 KB | Output is correct |
| 6 | Correct | 6 ms | 5112 KB | Output is correct |
| 7 | Correct | 6 ms | 4984 KB | Output is correct |
| 8 | Correct | 6 ms | 4984 KB | Output is correct |
| 9 | Correct | 6 ms | 5112 KB | Output is correct |
| 10 | Correct | 6 ms | 5112 KB | Output is correct |
| 11 | Correct | 6 ms | 5112 KB | Output is correct |
| 12 | Correct | 6 ms | 5112 KB | Output is correct |
| 13 | Correct | 6 ms | 4984 KB | Output is correct |
| 14 | Correct | 6 ms | 4984 KB | Output is correct |
| 15 | Correct | 6 ms | 5112 KB | Output is correct |
| 16 | Correct | 6 ms | 5112 KB | Output is correct |
| 17 | Correct | 6 ms | 5112 KB | Output is correct |
| 18 | Correct | 6 ms | 4984 KB | Output is correct |
| 19 | Correct | 6 ms | 5112 KB | Output is correct |
| 20 | Correct | 6 ms | 5112 KB | Output is correct |
| 21 | Correct | 6 ms | 5112 KB | Output is correct |
| 22 | Correct | 6 ms | 5112 KB | Output is correct |
| 23 | Correct | 6 ms | 5112 KB | Output is correct |
| 24 | Correct | 6 ms | 5084 KB | Output is correct |
| 25 | Correct | 6 ms | 5112 KB | Output is correct |
| 26 | Correct | 172 ms | 15324 KB | Output is correct |
| 27 | Correct | 158 ms | 15864 KB | Output is correct |
| 28 | Correct | 9 ms | 5368 KB | Output is correct |
| 29 | Correct | 6 ms | 5112 KB | Output is correct |
| 30 | Correct | 7 ms | 4984 KB | Output is correct |
| 31 | Correct | 123 ms | 15608 KB | Output is correct |
| 32 | Correct | 9 ms | 5368 KB | Output is correct |
| 33 | Correct | 209 ms | 25436 KB | Output is correct |
| 34 | Correct | 161 ms | 15748 KB | Output is correct |
| 35 | Correct | 8 ms | 5368 KB | Output is correct |
| 36 | Correct | 144 ms | 16504 KB | Output is correct |
| 37 | Correct | 8 ms | 5368 KB | Output is correct |
| 38 | Correct | 8 ms | 5368 KB | Output is correct |
| 39 | Correct | 153 ms | 15276 KB | Output is correct |
| 40 | Correct | 8 ms | 5624 KB | Output is correct |
| 41 | Correct | 127 ms | 15352 KB | Output is correct |
| 42 | Correct | 180 ms | 18772 KB | Output is correct |
| 43 | Correct | 6 ms | 5112 KB | Output is correct |
| 44 | Correct | 156 ms | 25760 KB | Output is correct |
| 45 | Correct | 208 ms | 20728 KB | Output is correct |
| 46 | Correct | 10 ms | 5368 KB | Output is correct |
| 47 | Correct | 9 ms | 5368 KB | Output is correct |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 186 ms | 13804 KB | Output is correct |
| 2 | Execution timed out | 3037 ms | 14856 KB | Time limit exceeded |
| 3 | Halted | 0 ms | 0 KB | - |
| # | 결과 | 실행 시간 | 메모리 | Grader output |
|---|---|---|---|---|
| 1 | Correct | 6 ms | 4984 KB | Output is correct |
| 2 | Correct | 6 ms | 4984 KB | Output is correct |
| 3 | Correct | 6 ms | 5112 KB | Output is correct |
| 4 | Correct | 6 ms | 4984 KB | Output is correct |
| 5 | Correct | 6 ms | 5112 KB | Output is correct |
| 6 | Correct | 6 ms | 5112 KB | Output is correct |
| 7 | Correct | 6 ms | 4984 KB | Output is correct |
| 8 | Correct | 6 ms | 4984 KB | Output is correct |
| 9 | Correct | 6 ms | 5112 KB | Output is correct |
| 10 | Correct | 6 ms | 5112 KB | Output is correct |
| 11 | Correct | 6 ms | 5112 KB | Output is correct |
| 12 | Correct | 6 ms | 5112 KB | Output is correct |
| 13 | Correct | 6 ms | 4984 KB | Output is correct |
| 14 | Correct | 6 ms | 4984 KB | Output is correct |
| 15 | Correct | 6 ms | 5112 KB | Output is correct |
| 16 | Correct | 6 ms | 5112 KB | Output is correct |
| 17 | Correct | 6 ms | 5112 KB | Output is correct |
| 18 | Correct | 6 ms | 4984 KB | Output is correct |
| 19 | Correct | 6 ms | 5112 KB | Output is correct |
| 20 | Correct | 6 ms | 5112 KB | Output is correct |
| 21 | Correct | 6 ms | 5112 KB | Output is correct |
| 22 | Correct | 6 ms | 5112 KB | Output is correct |
| 23 | Correct | 6 ms | 5112 KB | Output is correct |
| 24 | Correct | 6 ms | 5084 KB | Output is correct |
| 25 | Correct | 6 ms | 5116 KB | Output is correct |
| 26 | Correct | 10 ms | 5368 KB | Output is correct |
| 27 | Correct | 8 ms | 5368 KB | Output is correct |
| 28 | Correct | 29 ms | 5624 KB | Output is correct |
| 29 | Correct | 10 ms | 5496 KB | Output is correct |
| 30 | Correct | 10 ms | 5368 KB | Output is correct |
| 31 | Correct | 6 ms | 5112 KB | Output is correct |
| 32 | Correct | 24 ms | 5628 KB | Output is correct |
| 33 | Correct | 6 ms | 5112 KB | Output is correct |
| 34 | Correct | 9 ms | 5368 KB | Output is correct |
| 35 | Correct | 11 ms | 5496 KB | Output is correct |
| 36 | Correct | 10 ms | 5368 KB | Output is correct |
| 37 | Correct | 10 ms | 5368 KB | Output is correct |
| 38 | Correct | 6 ms | 5112 KB | Output is correct |
| 39 | Correct | 10 ms | 5368 KB | Output is correct |
| 40 | Correct | 8 ms | 5368 KB | Output is correct |
| 41 | Correct | 8 ms | 5368 KB | Output is correct |
| 42 | Correct | 21 ms | 5368 KB | Output is correct |
| 43 | Correct | 9 ms | 5752 KB | Output is correct |
| 44 | Correct | 6 ms | 5112 KB | Output is correct |
| 45 | Correct | 17 ms | 5468 KB | Output is correct |
| 46 | Correct | 11 ms | 5368 KB | Output is correct |
| 47 | Correct | 6 ms | 4984 KB | Output is correct |
| 48 | Correct | 10 ms | 5372 KB | Output is correct |
| 49 | Correct | 28 ms | 5496 KB | Output is correct |
| 50 | Correct | 22 ms | 5496 KB | Output is correct |
| 51 | Correct | 9 ms | 5368 KB | Output is correct |
| 52 | Correct | 10 ms | 5368 KB | Output is correct |
| 53 | Correct | 21 ms | 5368 KB | Output is correct |
| 54 | Correct | 10 ms | 5392 KB | Output is correct |
| 55 | Correct | 6 ms | 5112 KB | Output is correct |
| 56 | Correct | 172 ms | 15324 KB | Output is correct |
| 57 | Correct | 158 ms | 15864 KB | Output is correct |
| 58 | Correct | 9 ms | 5368 KB | Output is correct |
| 59 | Correct | 6 ms | 5112 KB | Output is correct |
| 60 | Correct | 7 ms | 4984 KB | Output is correct |
| 61 | Correct | 123 ms | 15608 KB | Output is correct |
| 62 | Correct | 9 ms | 5368 KB | Output is correct |
| 63 | Correct | 209 ms | 25436 KB | Output is correct |
| 64 | Correct | 161 ms | 15748 KB | Output is correct |
| 65 | Correct | 8 ms | 5368 KB | Output is correct |
| 66 | Correct | 144 ms | 16504 KB | Output is correct |
| 67 | Correct | 8 ms | 5368 KB | Output is correct |
| 68 | Correct | 8 ms | 5368 KB | Output is correct |
| 69 | Correct | 153 ms | 15276 KB | Output is correct |
| 70 | Correct | 8 ms | 5624 KB | Output is correct |
| 71 | Correct | 127 ms | 15352 KB | Output is correct |
| 72 | Correct | 180 ms | 18772 KB | Output is correct |
| 73 | Correct | 6 ms | 5112 KB | Output is correct |
| 74 | Correct | 156 ms | 25760 KB | Output is correct |
| 75 | Correct | 208 ms | 20728 KB | Output is correct |
| 76 | Correct | 10 ms | 5368 KB | Output is correct |
| 77 | Correct | 9 ms | 5368 KB | Output is correct |
| 78 | Correct | 186 ms | 13804 KB | Output is correct |
| 79 | Execution timed out | 3037 ms | 14856 KB | Time limit exceeded |
| 80 | Halted | 0 ms | 0 KB | - |