Submission #338886

#	Time	Username	Problem	Language	Result	Execution time	Memory
338886		Kerim	Gap (APIO16_gap)	C++17	100 / 100	62 ms	3356 KiB

gap

#include "gap.h"
#include "bits/stdc++.h"
#define MAXN 100009
#define INF 1000000007
#define mp(x,y) make_pair(x,y)
#define all(v) v.begin(),v.end()
#define pb(x) push_back(x)
#define wr cout<<"----------------"<<endl;
#define ppb() pop_back()
#define tr(ii,c) for(__typeof((c).begin()) ii=(c).begin();ii!=(c).end();ii++)
#define ff first
#define ss second
#define my_little_dodge 46
#define debug(x)  cerr<< #x <<" = "<< x<<endl;
using namespace std;
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}

typedef long long ll;
const ll B=1e18;
long long findGap(int T, int N){
	if(T==1){
		vector<ll>ans(N);
		MinMax(0LL,B,&ans[0],&ans[N-1]);
		for(int l=1,r=N-2;l<=r;l++,r--)
			MinMax(ans[l-1]+1,ans[r+1]-1,&ans[l],&ans[r]);	
		ll res=-1;
		for(int i=0;i<N-1;i++)
			umax(res,ans[i+1]-ans[i]);
		return res;
	}
	ll a,b,mn,mx;
	MinMax(0LL,B,&mn,&mx);
	ll d=(mx-mn-1)/(N-1);
	vector<ll>ans;ans.pb(mn);
	for(ll l=mn+1;l<mx;l+=d+1){
		MinMax(l,min(l+d,mx-1),&a,&b);
		if(~a)	
			ans.pb(a),ans.pb(b);
	}ans.pb(mx);
	ll res=-1;
	for(int i=0;i<int(ans.size())-1;i++)
		umax(res,ans[i+1]-ans[i]);
	return res;
}

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