|시간 제한||메모리 제한||제출||정답||맞은 사람||정답 비율|
|0.5 초||512 MB||8||1||1||33.333%|
You are the manager of a restaurant. You prepare N lunch boxes and hope to distribute them to some schools. Suppose there are m schools and assume the ith school asks for ki lunch boxes.
You aim to distribute the lunch boxes to as many schools as possible. Moreover, you have a rule. For the ith school, you give either zero or ki lunch boxes. Can you make a program that help you to find the maximum number of schools that can receive lunch boxes?
Your program must read from standard input. The first line contains 2 integers, N and m. Then, it follows by m lines. The ith line contains an integer ki.
Your program must output one line with a single integer to the standard output, which is the maximum number of schools.
10 4 3 9 4 2