This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<ll>;
using pl = pair<ll,ll>;
#define pb push_back
#define form(m,it) for(auto it=m.begin(); it!=m.end(); it++)
#define forp(i,a,b) for(ll i=a; i<=b; i++)
#define forn(i,a,b) for(ll i=a; i>=b; i--)
#define newl '\n'
#define ff first
#define ss second
const ll mod = 1000000007;
void solve(){
ll n; cin>>n;
ll l[n+1],r[n+1];
forp(i,1,n){
cin>>l[i]>>r[i];
}
ll ans=0;
ll curr=l[1];
ll temp=1;
forp(i,2,n){
if(r[i]<curr){
ans=max(ans,temp);
curr=l[i];
temp=1;
} else if(l[i]>curr){
curr=l[i];
temp++;
} else {
temp++;
}
}
cout<<max(ans,temp)<<newl;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int t=1; //cin>>t;
while(t--)solve();
}
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