[递归]母牛的故事-题解(C语言代码)

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int cow(int n) {
    if (n <= 4)return n;
    int cowsum = 1;
    int xiaocowsum = 0;
    if (n % 4 == 0)xiaocowsum++;
    cowsum++;
    return cow(n-1)+cow(n-3);
}
int main(){
    int n;
    while (scanf("%d", &n) != EOF&&n>0&&n<55) {
        if (n == 0)break;
        printf("%d\n",cow(n));
    }
    return 0;
}