Submission #67510127

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#define IOS ios_base::sync_with_stdio(false);cin.tie(nullptr)
#define INF 0x7fffffff
#define inf 0x3f3f3f3f
#define endl '\n'
#define int long long
#define PII pair<int,int>
#define mod 998244353
const int MOD=1e9+7;
const int N=1e5+10;
int read() {char act = 0;int f = 1, x= 0;while (act = getchar(), act < '0' && act != '-');if (act == '-') f = -1, act = getchar();x = act - '0';while (act = getchar(), act >= '0') x = x * 10 + act - '0';return x * f;}
void solve(){
    int n,start,end;
    cin>>n>>start>>end;
    int ans=0;
    for(int i=1;i<=n;i++){
        int a,b;
        cin>>a>>b;
        if(a<=start&&b>=end){
            ans++;
        }
    }
    cout<<ans<<endl;
}
signed main()
{
    IOS;
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }

    return 0;
}

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