Submission #797421

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
797421	2023-07-29 10:56:47	WongChun1234	The Big Prize (IOI17_prize)	C++14	90 / 100	77 ms	2816 KiB

prize

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#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
const int N=200050;
const bool DEBUG=0;
int n,l,r,lbound,rbound,mid,done[N],mx;
pair<int,int> res[N];
vector<int> pos,apos;
pair<int,int> qry(int id){
  if (id>=n||id<0) return {-1,-1};
  if (done[id]) return res[id];
  vector<int> resp=ask(id);
  done[id]=1;
  res[id]={resp[0],resp[1]};
  return res[id];
}
int sum(int id){
  return qry(id).first+qry(id).second;
}
int find_best(int N) {
  n=N;
  if (n<=5000&&(!DEBUG)){
    for (int i=0;i<n;i++){
      if (sum(i)==0) return i;
    }
  }
  for (int i=0;i<min(712,n);i++){
 
 
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Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:41:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for (int i=1;i<pos.size();i++){
      |               ~^~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 70 / 80