题解 | #二叉树#
二叉树
https://www.nowcoder.com/practice/f74c7506538b44399f2849eba2f050b5
#include<cstdio>
int tree(int m,int n){
if(m > n){
return 0;
}else{
return 1+tree(2*m,n)+tree(2*m+1,n);
}
}
int main(){
int m, n ;
while(scanf("%d%d",&m,&n) != EOF){
if(0 == m){
break;
}else{
printf("%d\n",tree(m,n));
}
}
}
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