题解

#include<iostream>
#include<cmath>
using namespace std;
int main(){
    int n,t,a;
    cin>>n>>t>>a;
    int x=max(t,a),y=min(t,a),s=n-t-a;
    if(y+s>x){
        cout<<"No";
    }else{
        cout<<"Yes";
    }
    return 0;
}

#include<iostream>
#include<cmath>
using namespace std;
int main(){
    int n,t,a;
    cin>>n>>t>>a;
    if(n-t-a+min(t,a)>max(t,a)){
        cout<<"No";
    }else{
        cout<<"Yes";
    }
    return 0;
}