Submission #396221

#	Time	Username	Problem	Language	Result	Execution time	Memory
396221		giorgikob	Gap (APIO16_gap)	C++14	30 / 100	68 ms	1200 KiB

gap

#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pb push_back
using namespace std;

//#include "game.h"

#include "gap.h"

ll answer = 0;
long long findGap(int T, int N)
{
    ll l = -1, r = 1e18; r++;
    ll cnt = 0;
    int calls = 0;
    ll len = -1;
    if(T == 1){
        while(true){
            ll new_l,new_r;
            if(len != -1){
                if((r-l) < len/N) break;
            }
            cnt++;
            if(answer >= r-l) break;
            if(cnt > (N+1)/2){
                if(l != r){
                    answer = max(answer,r-l);
                }
                break;
            }
            if(l+1 > r-1){
                if(l == r) break;
                answer = max(answer,r-l);
                break;
            }
            MinMax(l+1,r-1,&new_l,&new_r);
            calls++;
            if(new_l == -1){
                answer = max(answer,r-l);
                break;
            } else {
                if(cnt > 1)answer = max(answer, max(new_l-l,r-new_r)); else len = new_r-new_l;
                l = new_l;
                r = new_r;
            }
        }
    } else {
        ll last = -1;
        MinMax(0,1e18,&l,&r);
        ll k = (r-l)/N+1;
        for(ll i = l; i+k-1 <= r; i += k){
            ll a,b;
            MinMax(i,min(i+k-1,r),&a,&b);
            if(a == -1){
                continue;
            }
            if(last != -1){
                answer = max(answer,a-last);
            }
            last = b;
        }
    }

	return answer;
}

• Subtask 1: 30 / 30
• Subtask 2: 0 / 70