Submission #335608

#	Time	Username	Problem	Language	Result	Execution time	Memory
335608		beepbeepsheep	Global Warming (NOI13_gw)	Cpython 3	6 / 40	1099 ms	65536 KiB

gw

def find_max_islands(lst):
    i = 1  #this code is to remove adjacent same island heights
    temp=-1
    lst3=[]
    for i in lst:
        if i!=temp:
            lst3+=[i]
        temp=i
    lst2 = []+lst
    lst2.sort()#sort list in descending order to flood the islands
    lst2.reverse()
    lst3 = []+lst2
    peakvalley = []
    count = 0
    islands=[]
    for i in range(len(lst3)):
        x = lst.index(lst3[i]) #identify where the island height is in original list
        if x==len(lst)-1: #if i is the last element in the list
            if lst[x]>lst[x-1]: 
                islands.append(1)
            continue
        if x == 0: #if i is the first element in the list
            if lst[x]>lst[x+1]:
                islands.append(1)
            continue
        if lst[x]>lst[x+1]and lst[x]>lst[x-1]: #if island is higher than those around it
                islands.append(1)
        if lst[x]<lst[x+1]and lst[x]<lst[x-1]: #if island is lower than those around it
                islands.append(-1)
    maxisle = 0
    count = 0
    d=0
    for i in islands:
        count+=i
        d=max(count,d)
    return d
from sys import stdin,stdout
n=int(stdin.readline())
lst=[]
for i in range(n):
    lst+=[int(stdin.readline())]
stdout.write(str(find_max_islands(lst)))

• Subtask 1: 6 / 6
• Subtask 2: 0 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 10
• Subtask 5: 0 / 11