Submission #67546168

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define endl '\n'
#define int long long
const int N=3e5+10;
int dx[]={0,1,0,-1},dy[]={1,0,-1,0};
map<int,int> mp;
int n,m,k;
int a[N],b[N];
void slove(){
    int l,r;
    cin>>n>>l>>r;
    int coun=0;
    for(int i=1;i<=n;i++){
        cin>>a[1]>>a[2];
        if(a[1]<=l&&a[2]>=r) coun++;
    }
    cout<<coun<<endl;
}
signed main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
    int T=1;
    // cin>>T;
    while(T--){
        slove();
    }
}

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