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답안 #89974

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
89974 2018-12-19T12:09:41 Z Vardanyan 홀-짝 수열 (IZhO11_oddeven) Python 3
100 / 100
 26 ms 3816 KB 
n = int(input())
l = int(1)
r = int(10)
for i in range(100):
    r = r*10

ans = int(1)

while l<=r:
    mid = (l+r)
    mid = mid//2
    u = mid*(mid+1)
    u = u//2
    if(n<=u):
        ans = mid
        r = mid-1
    else:
        l = mid+1
lo = (ans-1)*(ans-1)+1
u = (ans-1)*(ans)
u = u//2
#print(u)
dif = n-(u+1)
#print(dif)
print(lo+dif*2)
#print(ans)

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 3300 KB Output is correct
2 Correct 25 ms 3432 KB Output is correct
3 Correct 24 ms 3488 KB Output is correct
4 Correct 25 ms 3640 KB Output is correct
5 Correct 24 ms 3692 KB Output is correct
6 Correct 24 ms 3728 KB Output is correct
7 Correct 24 ms 3736 KB Output is correct
8 Correct 23 ms 3740 KB Output is correct
9 Correct 24 ms 3744 KB Output is correct
10 Correct 24 ms 3748 KB Output is correct
11 Correct 24 ms 3752 KB Output is correct
12 Correct 24 ms 3756 KB Output is correct
13 Correct 26 ms 3760 KB Output is correct
14 Correct 26 ms 3768 KB Output is correct
15 Correct 23 ms 3768 KB Output is correct
16 Correct 24 ms 3816 KB Output is correct
17 Correct 24 ms 3816 KB Output is correct
18 Correct 24 ms 3816 KB Output is correct
19 Correct 25 ms 3816 KB Output is correct
20 Correct 23 ms 3816 KB Output is correct
21 Correct 25 ms 3816 KB Output is correct
22 Correct 24 ms 3816 KB Output is correct