#11 백준 2292번 파이썬
우보만리
- 고등학교 수열 시간에 풀이할만한 군수열 문제
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| def line_num(n): | |
| return 1 + 6*(n*(n+1)/2 - n) | |
| a = int(input()) | |
| line = 1 | |
| while 1: | |
| if line_num(line) >= a: # equal dropped | |
| print(line) | |
| break | |
| line += 1 |