为啥check1函数和check2函数输出的结果不一样啊????

// Problem: T307730 雪中的入祭诗
// Contest: Luogu
// URL: https://www.luogu.com.cn/problem/T307730
// Memory Limit: 125 MB
// Time Limit: 2000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

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

typedef long long ll;

const ll N = 2e5 + 10;
ll a[N];
ll n, k;

void check1(ll x)
{
	ll cnt = 0;
	for (ll i = 1; i < n; i++)
	{
		ll l = 0, r = i - 1;
		while (l < r)
		{
			ll mid = l + r + 1 >> 1;
			
			if (a[i] - a[mid] <= x) l = mid;
			else r = mid - 1;
		}
	
		if (a[i] - a[l] <= x) cnt += l;
		
		cout << cnt << '\n';
	}
	cout << '\n';
}

void check2(ll x)
{
	ll cnt = 0;
	for (ll i = 0; i < n; i++)
	{	
		for (int j = 0; j < i; j++)
			if (a[i] - a[j] <= x) cnt++;
		
		cout << cnt << '\n';
	}
	cout << '\n';
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	
	cin >> n >> k;
	
	for (ll i = 0; i < n; i++) cin >> a[i];
	
	sort(a, a + n);

	check1(1);
	// check2(1);
	

	return 0;
}