Submission #3211729

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Source Code Expand

#include<stdio.h>
#include<iostream>
#include<stdlib.h>
#include<vector>
#include<algorithm>
#include<utility>
#include<string>
#include<queue>
#include<map>
#include<set>
#include<iterator>

using namespace std;
#define int long long
/*                      */    //#undef int
#define INF 1000000009
#define INFL 1000000000000000018ll
#define mod 1000000007
#define pb push_back
#define fi first
#define se second
#define mk(a, b) make_pair(a, b)
typedef pair<int, int> PA;
typedef priority_queue<int> PQ;
typedef priority_queue<PA, vector<PA>, greater<PA> >PQG;

int n, k;

signed main()
{
    cin >> n >> k;
    if(n / 2 >= k){
        printf("YES\n");
    }
    else{
        printf("NO\n");
    }

    return 0;
}

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