xw_lemon @ 2024-08-07 21:27:43
#include<bits/stdc++.h>
#define int long long
using namespace std;
int n,m;
long long ans;
long long t[400010],lz[400010],a[100001];
void build(int id,int l,int r){
if(l==r){
t[id]=a[l];
return ;
}
int mid=(l+r)>>1;
build(id<<1,l,mid);
build(id<<1|1,mid+1,r);
t[id]=t[id<<1|1]+t[id<<1];
}
void uppush(int id){
t[id]=t[id<<1]+t[id<<1|1];
}
void downpush(int id,int l,int r){
if(lz[id]){
int mid=(l+r)>>1;
lz[id<<1]+=lz[id];
lz[id<<1|1]+=lz[id];
t[id<<1]+=lz[id]*(mid-l+1);
t[id<<1|1]+=lz[id]*(r-mid);
lz[id]=0;
}
}
void gx(int id,int l,int r,int x,int y,long long v){
if(l>=x&&r<=y){
lz[id]+=v;
t[id]+=v*(r-l+1);
return ;
}
downpush(id,l,r);
int mid=(l+r)>>1;
if(x<=mid) gx(id<<1,l,mid,x,y,v);
if(y>mid) gx(id<<1|1,mid+1,r,x,y,v);
uppush(id);
}
void tfind(int id,int l,int r,int x,int y){
if(l>=x&&r<=y){
ans+=t[id];
return ;
}
downpush(id,l,r);
int mid=(l+r)>>1;
if(x<=mid) tfind(id<<1,l,mid,x,y);
if(y>mid) tfind(id<<1|1,mid+1,r,x,y);
}
signed main(){
// freopen("P3372_8.in","r",stdin);
// freopen("ii.out","w",stdout);
scanf("%d%d",&n,&m);
for(int i=1;i<=n;i++){
scanf("%d",&a[i]);
}
build(1,1,n);
int a,b,c;
long long k;
for(int i=1;i<=m;i++){
ans=0;
scanf("%d%d%d",&c,&a,&b);
if(c==1){
scanf("%u",&k);
gx(1,1,n,a,b,k);
}
else{
tfind(1,1,n,a,b);
printf("%u\n",ans);
}
}
return 0;
}
评测
谢谢大佬指点
by _buzhidao_ @ 2024-08-07 21:30:04
@xw_lemon 开lazy_tag了没?
by K_J_M @ 2024-08-07 21:32:02
@xw_lemon 你用了define int long long,可是你的scanf里面却是%d,应该改为%lld
by xw_lemon @ 2024-08-07 21:32:05
@buzhidao 谢谢 我傻
by xw_lemon @ 2024-08-07 21:32:20
@buzhidao 已关
by xw_lemon @ 2024-08-07 21:36:13
@K_J_M 过了,谢谢,已关
by _buzhidao_ @ 2024-08-07 22:50:49
@xw_lemon 感谢,已回关。