Submission #1182439

#TimeUsernameProblemLanguageResultExecution timeMemory
1182439boclobanchatGap (APIO16_gap)C++20
70 / 100
43 ms3260 KiB
#include"gap.h"
#include<bits/stdc++.h>
using namespace std;
const long long INF=1e18;
long long findGap(int T,int N)
{
	long long mn,mx;
	MinMax(0,INF,&mn,&mx);
	if(N==2) return mx-mn;
	long long gap=mx-mn-1;
	vector<long long> vi;
	vi.push_back(mn),vi.push_back(mx);
	mn++;
	for(int i=0;i<N-2;i++)
	{
		long long a,b;
		MinMax(mn,mn+(gap+i)/(N-2)-1,&a,&b);
		if(a!=-1) vi.push_back(a),vi.push_back(b);
		mn+=(gap+i)/(N-2);
	}
	sort(vi.begin(),vi.end());
	long long ans=0;
	for(int i=1;i<vi.size();i++) ans=max(ans,vi[i]-vi[i-1]);
	return ans;
}
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