题解 | #星际穿越#
星际穿越
https://www.nowcoder.com/practice/53e4c208b8cf497086ecd65ef45349bb
import sys import math n = int(input()) l = int((-1 + math.sqrt(1 + 4 * n)) / 2) print(l)
星际穿越
https://www.nowcoder.com/practice/53e4c208b8cf497086ecd65ef45349bb
import sys import math n = int(input()) l = int((-1 + math.sqrt(1 + 4 * n)) / 2) print(l)
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