Type: Default 1000ms 256MiB

昆虫繁殖

You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.

Description

科学家在热带森林中发现了一种特殊的昆虫,这种昆虫的繁殖能力很强。每对成虫过x个月产y对卵,每对卵要过两个月长成成虫。假设每个成虫不死,第一个月只有一对成虫,且卵长成成虫后的第一个月不产卵(过X个月产卵),问过Z个月以后,共有成虫多少对?0≤X≤20,1≤Y≤20,X≤Z≤50。

Input Format

x,y,z的数值。

Output Format

过Z个月以后,共有成虫对数。

1 2 8

37

2026-4-26递推练习

Not Attended
Status
Done
Rule
XCPC
Problem
9
Start at
2026-4-26 13:30
End at
2026-4-26 16:30
Duration
3 hour(s)
Host
Partic.
8