제출 #1306985

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1306985		namhh	Gap (APIO16_gap)	C++20	30 / 100	52 ms	3236 KiB

gap

#include<bits/stdc++.h>
#include "gap.h"
using namespace std;
#define ll long long
#define pii pair<int,int>
#define fi first
#define se second
const int M = 1e5+5;
ll a[M];
int findGap(int T, int N){
	if(T == 1){
		ll mn,mx;
		MinMax(1,1e18,&mn,&mx);
		a[1] = mn;
		a[N] = mx;
		for(int i = 2; i <= (N+1)/2; i++){
			ll mnn,mxx;
			MinMax(a[i-1]+1,a[N-i+2]-1,&mnn,&mxx);
			a[i] = mnn;
			a[N-i+1] = mxx;
		}
		ll ans = 0;
		for(int i = 2; i <= N; i++) ans = max(ans,a[i]-a[i-1]);
		return ans;
	}
	else{
		ll mn,mx;
		MinMax(1,1e18,&mn,&mx);
		a[1] = mn;
		a[N] = mx;
		ll gap = (mx-mn+N-2)/(N-1);
		ll ans = gap;
		ll cur = a[1];
		ll sta = a[1]+1;
		while(true){
			ll mnn,mxx;
			ll l = sta;
			ll r = min(l+gap,a[N]);
			MinMax(l,r,&mnn,&mxx);
			if(mnn != mxx){
				ans = max(ans,mnn-cur);
				cur = mxx;
			}
			else{
				if(mnn != -1){
					ans = max(ans,mnn-cur);
				    cur = mnn;
				}
			}
			sta += gap+1;
			if(r == a[N]) break;
		}
		return ans;
	}
}

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