Submission #1023230

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023230		ConU	다각형 (GA5_polygon)	Cpython 3	40 / 100	14 ms	2940 KiB

polygon

import sys
input_ = sys.stdin.readline
def minput(): return map(int, input_().split())


a, b = minput()
a = (a + a % 2) // 2
a += a == 1
b = (b - b % 2) // 2
print(b * (b + 1) - a * (a - 1))

• Subtask 1: 0 / 60
• Subtask 2: 10 / 10
• Subtask 3: 30 / 30