https://www.acmicpc.net/problem/14719 h,w = map(int, input().split(" "))l = [[0 for i in range(w)] for j in range(h)]r = list(map(int , input().split(" ")))for i in range(w): for j in range(r[i]): l[h-j-1][i] =1answer = 0for i in range(h-1,-1,-1): rain = 0 start = False for j in range(w-1,-1,-1): if l[i][j] == 1 and start == False: start = True elif l[i][j..