Submission #495025

#	Time	Username	Problem	Language	Result	Execution time	Memory
495025		jamezzz	Gap (APIO16_gap)	C++17	100 / 100	63 ms	3984 KiB

gap

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

typedef long long ll;

ll a[100005];
vector<ll> v,len;

ll findGap(int T,int N){
	if(T==1){
	
	int l=0,r=N-1;ll cl=0,cr=1e18,mn,mx;
	while(l<=r){
		MinMax(cl,cr,&mn,&mx);
		a[l]=mn,a[r]=mx,cl=mn+1,cr=mx-1,++l,--r;
	}
	ll ans=0;
	for(int i=1;i<N;++i)ans=max(ans,a[i]-a[i-1]);
	return ans;
	
	}
	else{
		
	ll mn,mx,x,y;
	MinMax(0,1e18,&mn,&mx);
	x=mn+1,y=mx-1;
	ll l=(y-x+1)/(N-1);
	for(int i=0;i<N-1;++i)len.push_back(l);
	for(int i=0;i<(y-x+1)-l*(N-1);++i)++len[i];
	v.push_back(x-1);
	int ptr=0;ll cur=x;
	while(cur<y){
		MinMax(cur,cur+len[ptr]-1,&mn,&mx);
		if(mn!=-1)v.push_back(mn);
		if(mx!=-1)v.push_back(mx);
		cur+=len[ptr];++ptr;
	}
	v.push_back(y+1);
	ll ans=0;
	for(int i=1;i<v.size();++i)ans=max(ans,v[i]-v[i-1]);
	return ans;
	
	}
}

Compilation message (stderr)

gap.cpp: In function 'll findGap(int, int)':
gap.cpp:41:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for(int i=1;i<v.size();++i)ans=max(ans,v[i]-v[i-1]);
      |              ~^~~~~~~~~

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