Submission #970810

#	Time	Username	Problem	Language	Result	Execution time	Memory
970810		vjudge1	Gap (APIO16_gap)	C++14	12.89 / 100	45 ms	3104 KiB

gap

#include "gap.h"

#include <bits/stdc++.h>

using namespace std;

#define int long long

int dnc(int l, int r){
   if (l>=r) return 0;
   int mid=(l+r)>>1;
   int l1, r1, l2, r2;
   MinMax(l, mid, &l1, &r1);
   MinMax(mid+1, r, &l2, &r2);
   int ll=l1;
   if (ll==-1) ll=l2;
   int rr=r2;
   if (rr==-1) rr=r1;
   if (ll==-1 || rr==-1) return r-l+2;
   return max({(r+1)-rr, ll-(l-1), (l2==-1 || r1==-1)?0:l2-r1, dnc(l1+1, r1-1), dnc(l2+1, r2-1)});
}

long long findGap(int32_t T, int32_t N)
{
   int l, r;
   MinMax(0, 1e18, &l, &r);
   if (N==2) return r-l;
   if (r-l==2) return 1;
	return dnc(l+1, r-1);
}

• Subtask 1: 0 / 30
• Subtask 2: 12.8863069276 / 70