Submission #1308490

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308490		reginox	Odd-even (IZhO11_oddeven)	C++20	Compilation error	0 ms	0 KiB

oddeven

n = int(input())
l = 0
r = 10**51
while(l <= r):
  mid = (l+r)//2
  if(mid*(mid+1)/2 <= n):
    l = mid+1
  else:
    r = mid-1
v = l-1
add = 0
if(n-v*(v+1)/2 > 0):
  add = (n-v*(v+1)/2)*2-1
print(int(v**2+add))

Compilation message (stderr)

oddeven.cpp:1:1: error: 'n' does not name a type
    1 | n = int(input())
      | ^