Submission #573931

#	Time	Username	Problem	Language	Result	Execution time	Memory
573931		Sho10	Hotter Colder (IOI10_hottercolder)	C++17	0 / 100	450 ms	140692 KiB

hottercolder

#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho
#include "grader.h"
using ll=long long;
using ld=long double;
int const INF=1000000005;
ll const LINF=1000000000000000005;
ll const mod=6700417;
ld const PI=3.14159265359;
ll const MAX_N=3e5+5;
ld const EPS=0.00000001;
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define endl '\n'
#define sz(a) (int)a.size()
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
int n,check=0,last=0,cnt=0;
ll solve(ll l,ll r){
ll mid=(l+r)/2;
//cout<<l<<' '<<r<<endl;
if(l==r){
    return l;
}
if(cnt%2==0&&last==-1){
    ll x=Guess(l);
    cnt++;
    last=1;
}else if(cnt%2==1&&last==-1){
ll x=Guess(r);
cnt++;
last=2;
}
if(last==1){
    ll x=Guess(r);
    cnt++;
    last=2;
    if(x==1){
        return solve(mid+1,r);
    }else if(x==-1){
    last=-1;
    return solve(l,mid);
    }else if(x==0){
    return mid;
    }
}else if(last==2){
ll x=Guess(l);
cnt++;
last=1;
if(x==1){
    return solve(l,mid);
}else if(x==0){
return mid;
}else if(x==-1){
return solve(mid+1,r);
}
}
}
int HC(int N){
    cnt=0;
if(N==1){
    return 1;
}
ll nr=solve(1,N);
return nr;
}

Compilation message (stderr)

hottercolder.cpp: In function 'll solve(ll, ll)':
hottercolder.cpp:29:8: warning: unused variable 'x' [-Wunused-variable]
   29 |     ll x=Guess(l);
      |        ^
hottercolder.cpp:33:4: warning: unused variable 'x' [-Wunused-variable]
   33 | ll x=Guess(r);
      |    ^
hottercolder.cpp:61:1: warning: control reaches end of non-void function [-Wreturn-type]
   61 | }
      | ^

• Subtask 1: 0 / 25
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25