@[zengjunkai](/space/show?uid=49368) 建议逐字符对比。
by Drinkkk @ 2017-12-24 11:22:59
#可以保存成txt文件对比md5值
by 源氏可以吃吗 @ 2017-12-24 12:56:20
>123
by 源氏可以吃吗 @ 2017-12-24 12:56:41
find 函数:
```cpp
int find(int x,int l,int r)
{
if(a[x].l==l&&a[x].r==r)return a[x].c;
int m=(a[x].l+a[x].r)/2;
if(r<=m)return find(a[x].ls,l,r);
else if(l>=m+1)return find(a[x].rs,/*there*/l/*there*/,r);
else return find(a[x].ls,l,m)+find(a[x].rs,m+1,r);
}
```
```cpp
int find(int x,int l,int r)
{
if(a[x].l==l&&a[x].r==r)return a[x].c;
int m=(a[x].l+a[x].r)/2;
if(r<=m)return find(a[x].ls,l,r);
else if(l>=m+1)return find(a[x].rs,/*there*/m+1/*there*/,r);
else return find(a[x].ls,l,m)+find(a[x].rs,m+1,r);
}
```
by wycissilly @ 2017-12-24 16:13:56
Thanks!
by Corrine @ 2018-01-04 15:25:56