Submission #502153

#	Time	Username	Problem	Language	Result	Execution time	Memory
502153		khangal	Odd-even (IZhO11_oddeven)	Pypy 3	100 / 100	39 ms	18264 KiB

oddeven

n=int(input());
l=1;
r=10**100
while l < r:
    mid = (l+r)//2
    x = (1+mid)*(mid)//2
    if x >= n:
        r=mid
    else:
        l=mid+1
x=(1+r)*r//2
print(r*r - 2*(x-n))

• Subtask 1: 100 / 100