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31395번: 정렬된 연속한 부분수열의 개수 ↗

Solutions

Python 3
805 B | 805 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
# sys.setrecursionlimit(10**7)

BLANK = " "

# inp = input
inp = lambda : sys.stdin.readline().rstrip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def gcd(a, b): return gcd(b, a % b) if b > 0 else a
def lcm(a, b): return a * b // gcd(a, b)


def solve():
	n = ii()
	l = mii()

	prev = -1
	cnt = 0
	ret = []
	for crt in l:
		if prev < crt:
			cnt += 1
		else:
			ret.append(cnt)
			cnt = 1
		
		prev = crt
	
	ret.append(cnt)

	ans = 0
	for i in ret:
		ans += i * (i + 1) // 2
	
	p(ans)
if __name__ == "__main__":
    tc = 1
    for t in range(1, tc+1):
        ret = solve()