Submission #758698

#	Time	Username	Problem	Language	Result	Execution time	Memory
758698		Trisanu_Das	Gap (APIO16_gap)	C++17	100 / 100	47 ms	1120 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;

const ll INF=1e18;

ll findGap(int T, int N){
	ll mn, mx;
	MinMax(0, INF, &mn, &mx);
	if(N == 2)return mx - mn;
	if(T == 1){
		ll MN, MX, Ans=0;
		N = (N - 1) / 2;
		while(N--) MinMax(mn + 1, mx - 1, &MN, &MX), Ans = max(Ans, max(mx - MX - (ll)(MX == -1) * INF, MN - mn)), mn = MN, mx = MX;
		return max(Ans, mx - mn);
	}
	ll l=mn, r=mx, ans=(mx-mn+1)/((ll)N)+1, Ans=0, MX=mn;
	for (ll i=0; i<N; i++)
		MinMax(l+1+i*ans, l+(i+1)*ans, &mn, &mx),
		Ans=max(Ans, mn-MX),
		MX=max(MX, mx);
	return Ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:18:11: warning: unused variable 'r' [-Wunused-variable]
   18 |  ll l=mn, r=mx, ans=(mx-mn+1)/((ll)N)+1, Ans=0, MX=mn;
      |           ^

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