H - Can you answer these queries? ( POJ - 3264 )
#include<cmath>
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#define MAXN 100010
using namespace std;
int n,m,tot;
struct nond{
long long sum;
int l,r,len,flag;
}tree[MAXN*];
void up(int now){
tree[now].sum=tree[now*].sum+tree[now*+].sum;
}
void build(int now,int l,int r){
tree[now].l=l;tree[now].r=r;
tree[now].len=tree[now].r-tree[now].l+;
if(tree[now].l==tree[now].r){
scanf("%lld",&tree[now].sum);
return ;
}
int mid=(tree[now].l+tree[now].r)/;
build(now*,l,mid);
build(now*+,mid+,r);
up(now);
}
void change(int now,int l,int r){
if(tree[now].sum==tree[now].len) return ;
if(tree[now].l==tree[now].r){
tree[now].sum=(long long)sqrt(tree[now].sum);
return ;
}
int mid=(tree[now].l+tree[now].r)/;
if(r<=mid) change(now*,l,r);
else if(l>mid) change(now*+,l,r);
else{ change(now*,l,mid);change(now*+,mid+,r); }
up(now);
}
long long query(int now,int l,int r){
if(tree[now].l==l&&tree[now].r==r)
return tree[now].sum;
int mid=(tree[now].l+tree[now].r)/;
if(r<=mid) return query(now*,l,r);
else if(l>mid) return query(now*+,l,r);
else return query(now*,l,mid)+query(now*+,mid+,r);
}
int main(){
while(scanf("%d",&n)!=EOF){
++tot;printf("Case #%d:\n",tot);
build(,,n);
scanf("%d",&m);
for(int i=;i<=m;i++){
int x,y,z;
scanf("%d%d%d",&x,&y,&z);
if(y>z) swap(y,z);
if(x==) change(,y,z);
else printf("%lld\n",query(,y,z));
}
cout<<endl;
}
}
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