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답안 #882215

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
882215 2023-12-02T19:44:58 Z Mr_Husanboy 홀-짝 수열 (IZhO11_oddeven) PyPy 3
0 / 100
 35 ms 18488 KB 
n = int(input())
l = 1
r = 10**51
while l <= r:
    m = (l + r) // 2
    if((m + 1) * m / 2 >= n):
        r = m - 1
    else:
        l = m + 1
l -= 1

k = (l + 1) * l // 2

if l % 2 == 1:
    
    if n == k:
        print((n - (l - 1) // 2) * 2 - 1)
    else:
        print((n - (l + 1) // 2) * 2)
else:
    if n == k:
        print((n - l // 2) * 2)
    else:
        print((n - l // 2) * 2 - 1)

Subtask #1
0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 18480 KB Output is correct
2 Correct 28 ms 18268 KB Output is correct
3 Correct 29 ms 18236 KB Output is correct
4 Correct 27 ms 18220 KB Output is correct
5 Correct 27 ms 18352 KB Output is correct
6 Correct 27 ms 18236 KB Output is correct
7 Correct 27 ms 18344 KB Output is correct
8 Correct 28 ms 18236 KB Output is correct
9 Correct 28 ms 18236 KB Output is correct
10 Correct 29 ms 18236 KB Output is correct
11 Correct 27 ms 18228 KB Output is correct
12 Correct 28 ms 18228 KB Output is correct
13 Correct 31 ms 18488 KB Output is correct
14 Incorrect 28 ms 18192 KB Output isn't correct
15 Halted 0 ms 0 KB -