Submission #1074248

#	Time	Username	Problem	Language	Result	Execution time	Memory
1074248		beaconmc	Hotter Colder (IOI10_hottercolder)	C++14	25 / 100	525 ms	8188 KiB

hottercolder

#include "grader.h"
#include <bits/stdc++.h>

typedef long long ll;

#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(lli = x; i>y; i--)
using namespace std;

ll n;
int guess(ll a){

   if (a==0) return -1;
   if (a==n+1) return -1;
   return Guess(a);

}
int solve(int a, int b){

   if (a==b) return a;
   ll mid = (a+b)/2;
   ll midval = guess(mid);
   ll right = guess(mid+1);
   ll left = guess(mid-1);


   if (left == -1 && right==0 || left==-1 && right==-1){
      return mid;
   }
   if (left == -1){
      return solve(mid+1, b);
   }else{
      return solve(a, mid);
   }
}


int HC(int N){
   n = N;
   ll ans = solve(1,N);
   return ans;
}

Compilation message (stderr)

hottercolder.cpp: In function 'int solve(int, int)':
hottercolder.cpp:27:19: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   27 |    if (left == -1 && right==0 || left==-1 && right==-1){
      |        ~~~~~~~~~~~^~~~~~~~~~~
hottercolder.cpp:22:7: warning: unused variable 'midval' [-Wunused-variable]
   22 |    ll midval = guess(mid);
      |       ^~~~~~

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