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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#187379 | #3850. DJ Darko | Flying2018# | WA | 446ms | 25512kb | C++14 | 3.2kb | 2023-09-24 16:44:59 | 2023-09-24 16:45:00 |
Judging History
answer
#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<algorithm>
#include<set>
#define fi first
#define se second
using namespace std;
typedef long long ll;
const int N=200010;const ll inf=0x3f3f3f3f3f3f3f3f;
int a[N],b[N],n;ll sum[N];
namespace seg_tree{
ll tg[N<<2],ad[N<<2],t[N<<2];
void upd(int u){t[u]=(t[u<<1]==t[u<<1|1]?t[u<<1]:inf);}
void build(int u,int l,int r)
{
tg[u]=inf,ad[u]=0;
if(l==r){t[u]=a[l];return;}
int mid=(l+r)>>1;
build(u<<1,l,mid),build(u<<1|1,mid+1,r);
upd(u);
}
void setg(int u,ll v){ad[u]=0,tg[u]=v,t[u]=v;}
void seta(int u,ll v){if(tg[u]==inf) ad[u]+=v,t[u]=(t[u]==inf?inf:t[u]+v);else tg[u]+=v,t[u]+=v;}
void push(int u)
{
if(tg[u]!=inf && ad[u]) throw;
if(tg[u]!=inf) setg(u<<1,tg[u]),setg(u<<1|1,tg[u]),tg[u]=inf;
else seta(u<<1,ad[u]),seta(u<<1|1,ad[u]),ad[u]=0;
}
void assign(int u,int l,int r,int L,int R,ll v)
{
if(L<=l && r<=R){setg(u,v);return;}
int mid=(l+r)>>1;push(u);
if(L<=mid) assign(u<<1,l,mid,L,R,v);
if(R>mid) assign(u<<1|1,mid+1,r,L,R,v);
upd(u);
}
void add(int u,int l,int r,int L,int R,ll v)
{
if(L<=l && r<=R){seta(u,v);return;}
int mid=(l+r)>>1;push(u);
if(L<=mid) add(u<<1,l,mid,L,R,v);
if(R>mid) add(u<<1|1,mid+1,r,L,R,v);
upd(u);
}
void get_vec(int u,int l,int r,int L,int R,vector<pair<ll,ll>>&vec)
{
if(L<=l && r<=R)
{
if(t[u]!=inf){vec.emplace_back(sum[r]-sum[l-1],t[u]);return;}
int mid=(l+r)>>1;push(u);
get_vec(u<<1,l,mid,L,R,vec),get_vec(u<<1|1,mid+1,r,L,R,vec);
return;
}
int mid=(l+r)>>1;push(u);
if(L<=mid) get_vec(u<<1,l,mid,L,R,vec);
if(R>mid) get_vec(u<<1|1,mid+1,r,L,R,vec);
}
void print(int u,int l,int r,ll tg0,ll ad0)
{
if(l==r){if(tg0!=inf) printf("%lld ",tg0);else printf("%lld ",t[u]+ad0);return;}
int mid=(l+r)>>1;
if(tg0!=inf) print(u<<1,l,mid,tg0,0),print(u<<1|1,mid+1,r,tg0,0);
else print(u<<1,l,mid,tg[u],ad0+ad[u]),print(u<<1|1,mid+1,r,tg[u],ad0+ad[u]);
}
}
ll qry(int ql,int qr)
{
static vector<pair<ll,ll>> tmp;tmp.clear();
seg_tree::get_vec(1,1,n,ql,qr,tmp);
ll l=-1e18,r=1e18;
while(r-l>2)
{
ll mid=(l+r)>>1;
ll sl=0,sr=0;
for(auto [v,w]:tmp) if(w<mid) sl+=v;
else if(w>mid) sr+=v;
if(sl<sr) l=mid;
else r=mid;
}
ll ans=0,aw=1e18;
for(ll i=l;i<=r;i++)
{
ll sm=0;
for(auto [v,w]:tmp) sm+=abs(i-w)*v;
if(sm<aw) aw=sm,ans=i;
}
seg_tree::assign(1,1,n,ql,qr,ans);
return ans;
}
int main()
{
int q;scanf("%d%d",&n,&q);
for(int i=1;i<=n;i++) scanf("%d",&a[i]);
for(int i=1;i<=n;i++) scanf("%d",&b[i]);
for(int i=1;i<=n;i++) sum[i]=sum[i-1]+b[i];
seg_tree::build(1,1,n);
while(q --> 0)
{
int op,l,r,x;scanf("%d%d%d",&op,&l,&r);
if(op==1) scanf("%d",&x),seg_tree::add(1,1,n,l,r,x);
else printf("%lld\n",qry(l,r));
// seg_tree::print(1,1,n,inf,0);puts("");
}
return 0;
}
详细
Test #1:
score: 0
Wrong Answer
time: 446ms
memory: 25512kb
input:
200000 200000 185413631 745038744 881479208 394948467 101727403 796960399 284541402 80768155 286582974 546327406 197495962 552359542 727479505 437895671 143092948 7626834 741609268 540494577 298656274 548860413 41137417 210529949 658779847 161355446 486548926 602900245 119414972 310187428 238177860 ...
output:
462406736 0 0 467651597 0 0 0 292272061 -875583443 0 0 0 0 757538374 757538374 511700037 511700037 511700037 511700037 511700037 0 259727861 259727861 0 0 0 0 0 0 -611960024 -611960024 -258956513 -611960024 0 0 0 14118060 0 0 0 -894055877 -894055877 -1377823382 -131326868 -2371134099 0 0 259608425 0...
result:
wrong answer 2nd lines differ - expected: '1749348519', found: '0'