Submission #1149431

#	Time	Username	Problem	Language	Result	Execution time	Memory
1149431		maomao	Mountains (NOI20_mountains)	Pypy 3	64 / 100	2098 ms	97144 KiB

Mountains

n = int(input())
height = [int(x) for x in input().split()]
h_sort = sorted(height)
ans = 0
for i in range(n):
    height[i]=h_sort.index(height[i])
for i in range(n):
    left = right = 0
    u = height[i]
    for j in range(0,i):
        if height[j]<u:
            left +=1
    for j in range(i+1,n):
        if height[j]<u:
            right+=1
    ans += left*right
print(ans)

Compilation message (stdout)

Compiling 'Mountains.py'...

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  adding: __main__.pyc (deflated 32%)

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• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 9
• Subtask 4: 36 / 36
• Subtask 5: 28 / 28
• Subtask 6: 0 / 9
• Subtask 7: 0 / 12