题解 | #统计每个月兔子的总数#
统计每个月兔子的总数
http://www.nowcoder.com/practice/1221ec77125d4370833fd3ad5ba72395
#include <cstdio>
using namespace std;
int countNum(int n) {
if(n < 3) {
return 1;
} else{
return countNum(n-1) + countNum(n-2);
}
}
int main() {
int n;
while(EOF != scanf("%d", &n)) {
printf("%d\n", countNum(n));
}
return 0;
}
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