Submission #1113314

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1113314	2024-11-16T11:12:45 Z	epicci23	The Big Prize (IOI17_prize)	C++17	Compilation error	0 ms	0 KB

prize

#include "bits/stdc++.h"
#include "prize.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;

const int S = 100;
const int S2 = 20;

int ask_all(int l,int r){
  for(int i=l;i<=r;i++){
    auto x = ask(i);
    if(x[0]+x[1]==0) return i;
  }
  return -23;
}

int find_best(int n){
  if(n<=1000) return ask_all(0,n-1);
 
  int L = -1;
  array<int,2> Cache;
  for(int i=0;i<500;i++){
    array<int,2> x = ask(i);
    if(x[0]+x[1]==0) return i;
    if(L==-1){
      L=i;
      Cache=x;
    }
    else if(x[0]+x[1]>Cache[0]+Cache[1]){
      L=i;
      Cache=x;
    }
  }
  
  while(L+S<n){
    array<int,2> x = ask(L+S);
    if(x[0]+x[1]==0) return L+S;
    if(x[0]+x[1]==Cache[0]+Cache[1] && Cache[1]==x[1]){
      L+=S;
      continue;
    }
    int p = L;
    while(p+S2<L+S){
      p+=S2;
      array<int,2> u = ask(p);
      if(u[0]+u[1]==0) return p;
      if(u[0]+u[1]==Cache[0]+Cache[1] && Cache[1]==u[1]) continue;
      else{
        int xd = ask_all(p-S2+1,p-1);
        if(xd!=-23) return xd;
      }
    }
    int xd = ask_all(p+1,L+S-1);
    if(xd!=-23) return xd;
    L+=S;
  }
  return ask_all(L+1,n-1);
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:25:25: error: conversion from 'std::vector<int>' to non-scalar type 'std::array<int, 2>' requested
   25 |     array<int,2> x = ask(i);
      |                      ~~~^~~
prize.cpp:38:25: error: conversion from 'std::vector<int>' to non-scalar type 'std::array<int, 2>' requested
   38 |     array<int,2> x = ask(L+S);
      |                      ~~~^~~~~
prize.cpp:47:27: error: conversion from 'std::vector<int>' to non-scalar type 'std::array<int, 2>' requested
   47 |       array<int,2> u = ask(p);
      |                        ~~~^~~