Submission #986250

#	Time	Username	Problem	Language	Result	Execution time	Memory
986250		cig32	Meetings 2 (JOI21_meetings2)	C++17	0 / 100	2 ms	9820 KiB

meetings2

#include "bits/stdc++.h"
using namespace std;
#define int long long
#define double long double
const int MAXN = 3e5 + 10;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
  int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
  if(p==0) return 1 % MOD;
  int r = bm(b, p >> 1);
  if(p&1) return (((r*r) % MOD) * b) % MOD;
  return (r*r) % MOD;
}
int inv(int b) { 
  return bm(b, MOD-2);
}
int fastlog(int x) {
  return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
static void run_with_stack_size(void (*func)(void), size_t stsize) {
  char *stack, *send;
  stack = (char *)malloc(stsize);
  send = stack + stsize - 16;
  send = (char *)((uintptr_t)send / 16 * 16);
  asm volatile(
    "mov %%rsp, (%0)\n"
    "mov %0, %%rsp\n"
    :
    : "r"(send));
  func();
  asm volatile("mov (%0), %%rsp\n" : : "r"(send));
  free(stack);
}
vector<int> adj[MAXN];
int ans[MAXN], n, sz[MAXN];
void dfs(int node, int prv) {
  sz[node] = 1;
  for(int x: adj[node]) {
    if(x != prv) {
      dfs(x, node);
      sz[node] += sz[x];
    }
  }
}
int check(int node, int prv, int tar, int depth) {
  int ans = 0;
  if(sz[node] >= tar) ans = depth;
  for(int x: adj[node]) {
    if(x != prv) {
      ans = max(ans, check(x, node, tar, depth + 1));
    }
  }
  return ans;
}
void solve(int tc) {
  cin >> n;
  for(int i=1; i<n; i++) {
    int x, y;
    cin >> x >> y;
    adj[x].push_back(y);
    adj[y].push_back(x);
  }
  for(int i=1; i<=n; i++) {
    dfs(i, -1);
    for(int x: adj[i]) {
      int len = n - sz[x];
      int ret = check(x, i, len, 1);
      ans[len * 2] = max(ans[len * 2], ret + 1);
    }
  }
  for(int i=n-1; i>=1; i--) ans[i] = max(ans[i], ans[i+1]);
  for(int i=1; i<=n; i++) {
    cout << (i % 2 == 1 ? 1 : ans[i]) << "\n";
  }
}
void uwu() {
  ios::sync_with_stdio(0); cin.tie(0);
  int t = 1; //cin >> t;
  for(int i=1; i<=t; i++) solve(i);
}
int32_t main() {
  #ifdef ONLINE_JUDGE
  uwu();
  #endif
  #ifndef ONLINE_JUDGE
  run_with_stack_size(uwu, 1024 * 1024 * 1024); // run with a 1 GiB stack
  #endif
}
/*
g++ B.cpp -std=c++17 -O2 -o B
./B < input.txt
*/

• Subtask 1: 0 / 4
• Subtask 2: 0 / 16
• Subtask 3: 0 / 80