Submission #516817

#	Time	Username	Problem	Language	Result	Execution time	Memory
516817		CSQ31	Gap (APIO16_gap)	C++17	30 / 100	42 ms	2644 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
long long findGap(int T, int N)
{
	ll l = 0,r = 1e18;
	vector<ll>a,b;
	while(r>=l && a.size() + b.size() < N){
		ll mn,mx;
		MinMax(l,r,&mn,&mx);
		if(mn==-1)break;
		if(mn==mx){
			a.push_back(mn);
			break;
		}else{
			a.push_back(mn);
			b.push_back(mx);	
		}
		l = mn+1;
		r = mx-1;
	}
	reverse(b.begin(),b.end());
	for(auto x:b)a.push_back(x);
	ll ans = 0;
	for(int i=0;i+1<N;i++)ans = max(ans,a[i+1]-a[i]);
	return ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:9:36: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
    9 |  while(r>=l && a.size() + b.size() < N){
      |                ~~~~~~~~~~~~~~~~~~~~^~~

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