import math
n = float(input())
x = math.ceil((math.ceil(math.sqrt(8 * n + 1)) - 1) / 2)
print(int(2*n-x))
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
18228 KB |
Output is correct |
2 |
Correct |
27 ms |
18228 KB |
Output is correct |
3 |
Correct |
28 ms |
18236 KB |
Output is correct |
4 |
Correct |
29 ms |
18180 KB |
Output is correct |
5 |
Correct |
32 ms |
18296 KB |
Output is correct |
6 |
Correct |
28 ms |
18328 KB |
Output is correct |
7 |
Correct |
27 ms |
18228 KB |
Output is correct |
8 |
Correct |
27 ms |
18236 KB |
Output is correct |
9 |
Correct |
30 ms |
18200 KB |
Output is correct |
10 |
Correct |
27 ms |
18236 KB |
Output is correct |
11 |
Incorrect |
28 ms |
18192 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |