Problem:
Score : 200 points

Problem Statement

Raccoon is fighting with a monster.

The health of the monster is H.

Raccoon can use N kinds of special moves. Using the i-th move decreases the monster's health by A_i.
There is no other way to decrease the monster's health.

Raccoon wins when the monster's health becomes 0 or below.

If Raccoon can win without using the same move twice or more, print Yes; otherwise, print No.

Constraints

1 \leq H \leq 10^9

1 \leq N \leq 10^5

1 \leq A_i \leq 10^4

All values in input are integers.

Input

Input is given from Standard Input in the following format:

H N
A_1 A_2 ... A_N

Output

If Raccoon can win without using the same move twice or more, print Yes; otherwise, print No.

Sample Input 1

10 3
4 5 6

Sample Output 1

Yes

The monster's health will become 0 or below after, for example, using the second and third moves.

Sample Input 2

20 3
4 5 6

Sample Output 2

No

Sample Input 3

210 5
31 41 59 26 53

Sample Output 3

Yes

Sample Input 4

211 5
31 41 59 26 53

Sample Output 4

No

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include<stdio.h>
#include<stdlib.h>

int main(){
  int h, n;
  int *a;
  int i;
  
  scanf("%d %d", &h, &n);
  if((a = (int*)malloc(sizeof(int)*n)) == NULL){
    printf("malloc");
    return 0;
  }
  
  for(i=0; i<n; i++){
    scanf("%d", &a[i]);
  }
  
  for(i=0; i<n; i++){
    h -= a[i];
    if(h <= 0){
      break;
    }
  }
  
  if(h > 0){
    printf("No");
  }else{
    printf("Yes");
  }
  return 0;
}