样例错了还能过!?

#include<bits/stdc++.h>
using namespace std;
long long s[10000005];
void solve();
inline int in();
signed main()
{
	//int T;scanf("%d", &T);while(T--)
	solve();
	return 0;
}
inline int in()
{
	int x = 0;
	char ch = getchar();
	while(ch < '0' || ch > '9')
		ch = getchar();
	while(ch >= '0' && ch <= '9')
	{
		x *= 10;
		x += ch - '0';
		ch = getchar();
	}
	return x;
}
void solve()
{
	long long n;
    cin >> n;
	for(int i = 1; i <= n; i++) 
	{
		long long x, y;
		cin >> x >> y;
		s[x + 1]++, s[y + 2]--;
	}
    long long sum = 0;
	long long ans = 0;
	for(long long i = 1; i <= 1000000; i++)
    {
        sum += s[i];
		ans = max(ans, sum);   
    }
	cout << ans;
}