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 fi first
#define se second

#define pb push_back
#define es erase
#define in insert

#define pii pair<int, int>
#define ll long long
#define lb long double

#define ioss                     \
    ios::sync_with_stdio(false); \
    cin.tie(0);                  \
    cout.tie(0);

#define m_p(i, j) make_pair(i, j)
#define mem(a, x) memset(a, x, sizeof(a))
#define endl "\n"
#define all(x) x.begin(), x.end()

int main()
{
    int a, b, c;
    cin >> a >> b >> c;
    if (a > b * c)
        cout << "No" << endl;
    else
        cout << "Yes" << endl;
    return 0;
}