Problem:
Score : 100 points

Problem Statement

Takahashi is meeting up with Aoki.

They have planned to meet at a place that is D meters away from Takahashi's house in T minutes from now.

Takahashi will leave his house now and go straight to the place at a speed of S meters per minute.

Will he arrive in time?

Constraints

1 \leq D \leq 10000

1 \leq T \leq 10000

1 \leq S \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

D T S

Output

If Takahashi will reach the place in time, print Yes; otherwise, print No.

Sample Input 1

1000 15 80

Sample Output 1

Yes

It takes 12.5 minutes to go 1000 meters to the place at a speed of 80 meters per minute. They have planned to meet in 15 minutes so he will arrive in time.

Sample Input 2

2000 20 100

Sample Output 2

Yes

It takes 20 minutes to go 2000 meters to the place at a speed of 100 meters per minute. They have planned to meet in 20 minutes so he will arrive just on time.

Sample Input 3

10000 1 1

Sample Output 3

No

He will be late.

Solution in C++ (GCC 9.2.1) (judge verdict: Accepted)


#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define IOS ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define endl "\n"
#define REP(i,a,n) for(ll i=a;i<n;i++)
#define PER(i,n,a) for(ll i=n;i>a;i--)
#define REP1(i,a,n) for(ll i=a;i<=n;i++)
#define forit(it,x) for(auto it=(x).begin();it!=(x).end();++it)
#define ull unsigned long long int
#define ld long double
#define prec(n) fixed<<setprecision(n)
#define test ll t; cin>>t; while(t--)
#define re return 0
#define pb push_back
#define PI 3.1415926535897932384626
#define MOD (ll)1000000007
#define fi first
#define se second
#define eb emplace_back
#define vll vector<ll>
#define vi  vector<int>
#define mpll map<ll,ll>
#define pll pair<ll,ll>
#define mp(x,y) make_pair(x,y)
const ll MAXI = (ll)1e9+7;
int main(){
    IOS;
//    test{
        ld d,t,s;
        cin>>d>>t>>s;
/*        int ar[n];
        REP(i,a,n){
           cin>>ar[i];
        }
        */
        ld p=(d/s);
        if(p<=t){
            cout<<"Yes"<<"\n";
        }else{
            cout<<"No"<<"\n";
        }
//    }
re;
}