Submission #226542

#	Time	Username	Problem	Language	Result	Execution time	Memory
226542		bharat2002	Gap (APIO16_gap)	C++14	Compilation error	0 ms	0 KiB

gap

/*input

*/
#include "gap.h" 
#include<bits/stdc++.h>
using namespace std;
const int N=1e5 + 100;
const int mod=1e9 + 7;
#define int long long
const int inf=1e18;
#define pii pair<int, int>
#define f first
#define s second 
#define mp make_pair
#define FOR(i, n) for(int i=1;i<=n;i++)
#define TRACE(x) cerr << #x << " = " << x << endl 
//Trace prints the name of the variable and the value.
int arr[N];
/*int vals[N];int nc;
void MinMax(int l, int r, int &a, int &b)
{
	for(int i=1;i<N;i++)
	{
		if(vals[i]>=l) {a=vals[i];break;}
	}
	for(int i=1;i<N;i++)
	{
		if(vals[i+1]>r||i==nc) {b=vals[i];return;}
	}
}*/
int findGap(int t, int n)
{
	if(t==1)
	{	
		MinMax(0, 1e18, &arr[1], &arr[n]);
		int i=2;
		while(i<=n-i+1)
		{
			MinMax(arr[i-1] + 1, arr[n-i+2]-1, &arr[i], &arr[n-i+1]);i++;
		}
		int ans=-inf;
		for(int j=1;j<n;j++) ans=max(ans, arr[j+1]-arr[j]);
		return ans;
	}
	MinMax(0, 1e18, &arr[1], &arr[n]);
	if(n==2) return arr[n]-arr[1];
	int diff=(arr[n]-arr[1])/(n-1);
	if((arr[n]-arr[1])%(n-1)!=0) diff++;
	int ans=0;
	int prevel=arr[1], curl=arr[1]+1, curr=arr[1]+1+diff;
	while(curl<arr[n])
	{
		int cmin, cmax;MinMax(curl, curr, &cmin, &cmax);
		if(cmin!=-1) ans=max(ans, cmin-prevel);
		ans=max(ans, cmax - cmin);
		if(cmax!=-1) prevel=cmax;
		curl=curr + 1;curr=curl + diff;
	}
	return ans;
}
/*signed main()
{
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int t, n;cin>>t>>n;nc=n;
	for(int i=1;i<=n;i++) cin>>vals[i];
	cout<<findGap(t, n);
}*/

Compilation message (stderr)

/tmp/ccWeFzo0.o: In function `main':
grader.cpp:(.text.startup+0x18e): undefined reference to `findGap(int, int)'
collect2: error: ld returned 1 exit status