백준 [ALGORITHM] - 짐 챙기는 숌 (1817)

N, M = map(int, input().split())

cnt = 1
sum = 0




if N == 0:
    print(0)
    
else:
    number = input().split(' ')
    for i in range(len(number)):
        temp = int(''.join(number[i]))
        
        if sum + temp > M:
            sum = temp
            cnt += 1
        else:
            sum += temp
            
    print(cnt)