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  int           long long
 #define pb                push_back
 #define ppb               pop_back
 #define pf                push_front
 #define ppf               pop_front
 #define all(x)            (x).begin(),(x).end()
 #define uniq(v)           (v).erase(unique(all(v)),(v).end())
 #define sz(x)             (int)((x).size())
 #define fr                first
 #define sc                second
 #define pint              pair<int,int>
 #define rep(i,a,b)        for(int i=a;i<b;i++)
 #define mem1(a)           memset(a,-1,sizeof(a))
 #define mem0(a)           memset(a,0,sizeof(a))
 #define ppc               __builtin_popcount
 #define ppcll             __builtin_popcountll
 #define vint			   vector<int>
 #define vpint			   vector<pair<int,int>>
 #define mp                make_pair


 void reader() 
 { 
 #ifndef ONLINE_JUDGE 
 freopen("input.txt","r",stdin);
 freopen("output.txt","w",stdout); 
 #endif
 }
 
 void fastIO() {ios_base::sync_with_stdio(false); cin.tie(NULL);}
 
 
 
 void solve()
 {
 
 int d,t,s;
 cin>>d>>t>>s;
 if(s*t>=d)
 	cout<<"Yes";
 else
 	cout<<"No";
 
 
 cout<<"\n";
 }
 
 
 
 signed main()
 {
 	reader(); fastIO();
 	long long t=1;
 	//cin>>t;
 	while(t--) solve();
 	return 0;
 }