解题思路:
注意事项:
参考代码:
#include <stdio.h>
int cowNum(int n);
int main()
{
int n;
while(scanf("%d", &n) && n)
printf("%d\n", cowNum(n));
return 0;
}
int cowNum(int n)
{
if(n <= 4)
return n;
int childCow1 = 1, childCow2 = 1, childCow3 = 1, momCow = 1;
for(int i = 5; i <= n; i++)
{
momCow += childCow3;
childCow3 = childCow2;
childCow2 = childCow1;
childCow1 = momCow;
}
return childCow1 + childCow2 + childCow3 + momCow;
}
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