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Submission #338455

# Submission time Handle Problem Language Result Execution time Memory
338455 2020-12-23T07:21:21 Z amunduzbaev Odd-even (IZhO11_oddeven) Python 3
100 / 100
 19 ms 2972 KB 
import math

x = int(input())
l = 1
r = x #int(math.sqrt(x))+3
while (l < r):
    m = (l + r)//2
    if((m*(m+1)//2) > x):
        r = m-1
    elif(((m+1)*(m+2)//2) < x):
        l = m+1
    else:
        break
 
ans = (l + r)//2
need = x - ans*(ans+1)//2
if(need == 0):
    aa = ans * ans
else :
    aa = ans * ans+1 +((need-1)*2)
print(aa)

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2796 KB Output is correct
2 Correct 16 ms 2796 KB Output is correct
3 Correct 16 ms 2796 KB Output is correct
4 Correct 18 ms 2796 KB Output is correct
5 Correct 18 ms 2796 KB Output is correct
6 Correct 17 ms 2796 KB Output is correct
7 Correct 16 ms 2796 KB Output is correct
8 Correct 16 ms 2796 KB Output is correct
9 Correct 16 ms 2796 KB Output is correct
10 Correct 16 ms 2796 KB Output is correct
11 Correct 17 ms 2796 KB Output is correct
12 Correct 16 ms 2796 KB Output is correct
13 Correct 17 ms 2796 KB Output is correct
14 Correct 16 ms 2796 KB Output is correct
15 Correct 16 ms 2796 KB Output is correct
16 Correct 16 ms 2796 KB Output is correct
17 Correct 17 ms 2924 KB Output is correct
18 Correct 16 ms 2796 KB Output is correct
19 Correct 17 ms 2816 KB Output is correct
20 Correct 16 ms 2796 KB Output is correct
21 Correct 17 ms 2796 KB Output is correct
22 Correct 19 ms 2972 KB Output is correct