Submission #875372

#	Time	Username	Problem	Language	Result	Execution time	Memory
875372		ZeroCool	Gap (APIO16_gap)	C++14	30 / 100	35 ms	3360 KiB

gap

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

using namespace std;

//#define int long long

#define pb push_back
#define mp make_pair
#define mt make_tuple
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()

using ll = long long;
using ld = long double;

const int N = 1e5 + 5;
const int M = 405;
const int SQRT = 500;
const int LOG = 20;
const ll INF = 1e18;
const int MOD = 1e9+7;
const ld EPS = 1e-9;

ll findGap(int t, int n){
	ll mn ,mx;
	MinMax(0, INF, &mn, &mx);
	if(t == 1){
		if(n == 2)return mx - mn;

		ll l = mn;
		ll r = mx;
		ll ans = -INF;
		for(int i = 0;i<(n - 1) / 2;i++){
			MinMax(l+1, r-1, &mn, &mx);
			ans = max(ans, mn - l);
			ans = max(ans, r - mx);
			l = mn;
			r = mx;
		}

		return ans;
	}

	ll l = mn + 1;
	ll r = mx;
	ll prev = mn;
	ll step = (mx - mn) / n;
	ll ans = step;

	while(l < r){
		int nex = min(r, l + step);

		MinMax(l, nex, &mn, &mx);

		l = nex + 1;
		ans = max(ans, mn - prev);
		if(mx != -1)prev = mx;
	}

	return ans;
}

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