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 <stdio.h>
int main(int argc, char** argv)
{
int mon, old = 1, num = 1;
scanf("%d", &mon);
for (int i = 3; i <= mon; i++) { num += old; old = num - old; }
printf("%d\n", num);
return 0;
}
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