题解 | #跳台阶扩展问题#
跳台阶扩展问题
https://www.nowcoder.com/practice/953b74ca5c4d44bb91f39ac4ddea0fee
#include <stdio.h>
int caln(int n){
if(n < 0){
return -1;
}
if(n<=1){
return 1;
}else{
int count=0;
for(int i = 1; i <= n; i++){
count+=caln(n-i);
}
return count;
}
}
int main() {
int a = 7; //2;
scanf("%d", &a);
printf("%d", caln(a));
return 0;
}
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