Submission #1126332

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126332		efedmrlr	Stray Cat (JOI20_stray)	C++20	4 / 100	51 ms	13896 KiB

Anthony

#include "Anthony.h"
#include <vector>
// #pragma GCC optimize("O3,Ofast,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>

using namespace std;


#define lli long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int i = 0; (i) < (n); (i)++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()


namespace {
  const int NMAX = 3e4+5;
  vector<vector<array<int, 2> > > adj(NMAX, vector<array<int, 2> >()), ch;
  queue<array<int, 3> > qu;
  vector<int> vis, p, pedg, dep;
  std::vector<int> X;

  void dfs(int node, int col) {
    X[pedg[node]] = col;
    col++;
    col %= 3;
    for(auto c : ch[node]) {
      dfs(c[0], col);
    }
  }

}  // namespace


std::vector<int> Mark(int N, int M, int A, int B,
                      std::vector<int> U, std::vector<int> V) {
  X.assign(M, -1);
  vis.assign(N + 5, 0);
  p.assign(N + 5, 0);
  dep.assign(N + 5, 0);
  pedg.assign(N + 5, 0);
  while(qu.size()) qu.pop();
  ch.assign(N + 5, vector<array<int, 2> >());
  adj.assign(N + 5, vector<array<int, 2> >());
  for(int i = 0; i < M; i++) {
    adj[U[i]].pb({V[i], i});
    adj[V[i]].pb({U[i], i});
  }
  qu.push({0, 0, 0});
  dep[0] = 0;
  while(qu.size()) {
    auto cur = qu.front();
    qu.pop();
    if(vis[cur[0]]) continue;
    vis[cur[0]] = 1;
    p[cur[0]] = cur[1];
    dep[cur[0]] = dep[cur[1]] + 1;
    pedg[cur[0]] = cur[2];
    for(auto c : adj[cur[0]]) {
      if(vis[c[0]]) continue;
      qu.push({c[0], cur[0], c[1]});
    }
  }
  for(int i = 1; i < N; i++) {
    ch[p[i]].pb({i, pedg[i]});
  }
  dfs(0, 0);
  for(int i = 0; i < M; i++) {
    if(X[i] != -1) continue;
    if(dep[U[i]] < dep[V[i]]) swap(U[i], V[i]);
    X[i] = X[pedg[U[i]]];
  }
  return X;
}

Catherine

#include "Catherine.h"
#include <vector>
// #pragma GCC optimize("O3,Ofast,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>

using namespace std;


#define lli long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int i = 0; (i) < (n); (i)++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()

namespace {

int A, B;


}  // namespace

void Init(int A, int B) {
  ::A = A;
  ::B = B;
}

int Move(std::vector<int> y) {
  for(int i = 0; i < 3; i++) {
    int nxt = i + 1;
    nxt %= 3;
    if(y[nxt] && y[i]) {
      return i;
    }
  }
  for(int i = 0; i < 3; i++) {
    if(y[i]) return i;
  }
  assert(0);
}

• Subtask 1: 2 / 2
• Subtask 2: 0 / 2
• Subtask 3: 2 / 2
• Subtask 4: 0 / 9
• Subtask 5: 0 / 5
• Subtask 6: 0 / 71
• Subtask 7: 0 / 9