Submission #68201

#	Time	Username	Problem	Language	Result	Execution time	Memory
68201		gusfring	Gap (APIO16_gap)	C++14	13.80 / 100	178 ms	1532 KiB

gap

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

using namespace std;

typedef long long ll;
const int MAXN = 1e5 + 5;
const ll MAXA = 1000000000000000000LL;

ll mn, mx;

ll solve(ll lo, ll hi){
	if(lo >= hi) return 0;
	unsigned long long x = (1LLU * lo + hi) / 2;
	ll mid = (ll)(x), mn1 = -1, mx1 = -1, mn2 = -1, mx2 = -1;
	if(lo < mid) MinMax(lo, mid, &mn1, &mx1);
	if(mid + 1 < hi) MinMax(mid + 1, hi, &mn2, &mx2);
	ll res = 0, r1 = 0, r2 = 0;
	if(mx1 != -1 && mx2 != -1) res = mn2 - mx1;
	if(mx2 != -1 && mx2 != mn2) r2 = solve(mn2, mx2);
	if(mx1 != -1 && mx1 != mn1) r1 = solve(mn1, mx1);
	return max({res, r1, r2});
}

long long findGap(int T, int N){
	MinMax(0, MAXA, &mn, &mx);
	return solve(mn, mx);
}

• Subtask 1: 0 / 30
• Subtask 2: 13.7992726872 / 70