Submission #899353

#	Time	Username	Problem	Language	Result	Execution time	Memory
899353		AdamGS	Koala Game (APIO17_koala)	C++17	100 / 100	48 ms	700 KiB

koala

#include "koala.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
int minValue(int N, int W) {
  int P[N], T[N];
  rep(i, N) P[i]=0;
  P[0]=1;
  playRound(P, T);
  rep(i, N) if(P[i]>=T[i]) return i;
  return 0;
}

int maxValue(int N, int W) {
  int P[N], T[N];
  vector<int>V(N);
  rep(i, N) V[i]=0;
  int ans=-1;
  while(true) {
    int ile=N;
    rep(i, N) if(V[i]) --ile;
    if(ile==1) {
      rep(i, N) if(!V[i]) ans=i;
      break;
    }
    rep(i, N) if(V[i]) P[i]=0; else P[i]=W/ile;
    playRound(P, T);
    rep(i, N) if(P[i]>=T[i]) V[i]=1;
    int ans=0;
    rep(i, N) if(!V[i]) ++ans;
  }
  return ans;
}

int greaterValue(int N, int W) {
  int P[N], T[N], po=2, ko=8;
  rep(i, N) P[i]=0;
  while(po<ko) {
    int sr=(po+ko)/2;
    P[0]=P[1]=sr;
    playRound(P, T);
    if(T[0]>sr && T[1]<=sr) return 0;
    if(T[0]<=sr && T[1]>sr) return 1;
    if(T[0]>sr) po=sr+1; else ko=sr-1;
  }
  if(po==2) po=1;
  P[0]=P[1]=po;
  playRound(P, T);
  if(T[0]<=po) return 1;
  return 0;
}

bool comp(int a, int b) {
  int P[100], T[100];
  rep(i, 100) P[i]=0;
  P[a]=P[b]=100;
  playRound(P, T);
  if(T[a]<=P[a]) return true;
  return false;
}

vector<int>znajdz50() {
  vector<int>ans, czy(100);
  rep(j, 50) {
    int P[100], T[100];
    rep(i, 100) P[i]=czy[i];
    int k=j+1;
    rep(i, 100) if(!czy[i] && k) {
      P[i]=1;
      --k;
    }
    playRound(P, T);
    rep(i, 100) if(!czy[i] && P[i]>=T[i]) {
      czy[i]=1;
      ans.pb(i);
    }
  }
  return ans;
}

vector<int>solve(vector<int>V) {
  if(V.size()==1) return V;
  int N=100;
  int P[N], T[N], k=min(N/(int)V.size(), 8);
  rep(i, N) P[i]=0;
  for(auto i : V) P[i]=k;
  playRound(P, T);
  vector<int>A, B;
  for(auto i : V) if(P[i]>=T[i]) A.pb(i); else B.pb(i);
  A=solve(A);
  B=solve(B);
  for(auto i : B) A.pb(i);
  return A;
}

void allValues(int N, int W, int *P) {
  if (W == 2*N) {
    int T[N];
    rep(i, N) T[i]=i;
    stable_sort(T, T+N, comp);
    rep(i, N) P[T[i]]=i+1;
    return;
  }
  vector<int>V=znajdz50(), Q, odw(100);
  for(auto i : V) odw[i]=1;
  rep(i, 100) if(!odw[i]) Q.pb(i);
  Q=solve(Q);
  rep(i, 50) {
    P[V[i]]=i+1;
    P[Q[i]]=i+51;
  }
}

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 53 / 53