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浙大版《C语言程序设计实验与习题指导(第3版)》题目集
2022-07-06 09:23:00 【无二三事】
实验4-1-10 兔子繁衍问题
分数 15
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作者 徐镜春
单位 浙江大学
一对兔子,从出生后第3个月起每个月都生一对兔子。小兔子长到第3个月后每个月又生一对兔子。假如兔子都不死,请问第1个月出生的一对兔子,至少需要繁衍到第几个月时兔子总数才可以达到N对?
输入格式:
输入在一行中给出一个不超过10000的正整数N。
输出格式:
在一行中输出兔子总数达到N最少需要的月数。
输入样例:
30
输出样例:
9
代码长度限制
16 KB
时间限制
400 ms
内存限制
64 MB
代码实现:
# include <stdio.h>
main() {
int N;
scanf("%d",&N);// 1,1,2,3满足斐波那契数列
int a = 1,b = 1,max = 1,temp,month = 1;
if (N == 1) {
printf("%d",month);
}else {
month = 2;
while(max < N) {
temp = a;
a += b;
b = temp;
max = (a >= b) ? a : b;
month += 1;
}
printf("%d",month);
}
return 0;
}
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