Submission #1163812

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1163812	2025-03-08 14:09:38	cnn008	The Big Prize (IOI17_prize)	C++20	20 / 100	78 ms	688 KiB

prize

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#include "prize.h"
#include "bits/stdc++.h"
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r){
    assert(l<=r);
    return uniform_int_distribution<int> (l,r)(rng);
}
pair <int,int> mp[200005];
pair <int,int> get(int i){
  if(mp[i].first || mp[i].second) return mp[i];
  auto vi=ask(i);
  pair <int,int> ans={vi[0],vi[1]};
  return mp[i]=ans;
}
int find_best(int n) {
  int mx=0;
  for(int i=1; i<=20; i++){
    int k=rand(0,n-1);
    if(i==1) k=1;
    auto [u,v]=get(k);
    //if(!u and !v) return k;
    mx=max(mx,u+v);
  }
  int L=0,R=n-1,kep=0;
  for(int _=0; _<=10000; _++){
    while(1){
      auto [u,v]=get(L);
      if(!u and !v) return L;
      if(u+v==mx){
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 0 / 80