import sys n, m, b = map(int,sys.stdin.readline().rstrip().split()) groundHeight = [list(map(int,sys.stdin.readline().rstrip().split())) for i in range(n)] #numOfH ={i:0 for i in range(257)} linearGround = [] minH = 256 maxH = 0 for raw in groundHeight : if min(raw) maxH: maxH = max(raw) for h in raw: linearGround.append(h) linearGround.sort(reverse=True) ..