Submission #577175

#	Time	Username	Problem	Language	Result	Execution time	Memory
577175		Theo830	The Big Prize (IOI17_prize)	C++17	0 / 100	1 ms	292 KiB

prize

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const int MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ll,ii>
#define ull unsigned int
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
#include "prize.h"
ll solve(ll l,ll r){
    if(l > r){
        return -1;
    }
    ll mid = (l+r)/2;
    vector<int>res = ask(mid);
    if(res[0] == 0 && res[1] == 0){
        return mid;
    }
    if(l == r){
        return -1;
    }
    ll ans;
    if(res[0] > res[1]){
        ans = solve(l,mid);
        if(ans != -1){
            ans = solve(mid+1,r);
        }
    }
    else{
        ans = solve(mid+1,r);
        if(ans != -1){
            ans = solve(l,mid);
        }
    }
    return ans;
}
int find_best(int n){
    return solve(0,n-1);
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 80