马蹄杯第一场：第一题

1题目链接.https://www.matiji.net/exam/brushquestion/23/4777/C98C14523F069FECB0DEED64F00CEAB0

#include<bits/stdc++.h> 
using namespace std;
int main( )
{
    ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
    int n;cin>>n;
    vector<int>a(n+1);
    vector<int>b(n+1);
    int cnt=0;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        cin>>b[i];
        if(a[i]<=b[i]) cnt++;
    }
    cout<<cnt<<" "<<n-cnt<<endl;
    return 0;
}