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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#234697 | #7523. Partially Free Meal | 1677118046 | WA | 168ms | 109556kb | C++14 | 2.4kb | 2023-11-01 20:57:44 | 2023-11-01 20:57:45 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int nn=2e5+10;
ll id=0;
int sz;
ll root[nn];
vector<ll>an;
struct node2{
ll a,b;
}C[nn];
struct node{
int lson,rson;
ll sum;//因为求的是前k小的和故要用前缀和来维护。
ll num;
}tree[40*nn];
int getid(int x){
return lower_bound(an.begin(),an.end(),x)-an.begin()+1;
}
int build(int l,int r){//先建立初始的树
int now=++id;
tree[now].sum=0;
tree[now].num=0;
if(l==r)return now;
int mid=(l+r)/2;
tree[now].lson=build(l,mid);
tree[now].rson=build(mid+1,r);
return now;
}
int update(int l,int r,int pos,int pre)//建立新版本的节点
{
id++;
tree[id]=tree[pre];
tree[id].num++;
tree[id].sum+=an[pos-1];
int now=id;
if(l==r&&l==pos){
return now;
}
int mid=(l+r)/2;
if(mid>=pos){
tree[now].lson=update(l,mid,pos,tree[pre].lson);
}else{
tree[now].rson=update(mid+1,r,pos,tree[pre].rson);
}
return now;
}
ll query(int l,int r,int k,int now,int pre){//前k小的值
if(l==r){
if(tree[now].num-tree[pre].num==0)return 0;
return (tree[now].sum-tree[pre].sum)/(tree[now].num-tree[pre].num)*k;
}
ll mid=(l+r)/2;
int id1=tree[now].lson;
int id2=tree[pre].lson;
if(tree[id1].num-tree[id2].num>=k){
return query(l,mid,k,id1,id2);
}else{
return (tree[id1].sum-tree[id2].sum)+query(mid+1,r,k-(tree[id1].num-tree[id2].num),tree[now].rson,tree[pre].rson);
}
}
ll ans[nn];
void get(int l,int r,int posl,int posr){//得到有效区间的最值
ll mid=(l+r)/2;
if(l>r)return;
ll a0=1e9+10;
ll pos=0;
for(int i=max(mid,1ll*posl);i<=posr;i++){
ll a1=query(1,sz,mid-1,root[i-1],root[0]);
if(a1+C[i].b+C[i].a<a0){
a0=a1+C[i].b+C[i].a;
pos=i;
}
}
ans[mid]=a0;
if(l==r)return;
get(l,mid-1,posl,pos);
get(mid+1,r,pos,posr);
}
bool cmp1(node2 a,node2 b){
if(a.b==b.b)return a.a<b.a;
return a.b<b.b;
}
void solve(){
int n;cin>>n;
for(int i=1;i<=n;i++){
cin>>C[i].a>>C[i].b;
an.push_back(C[i].a);
}
sort(C+1,C+n+1,cmp1);
sort(an.begin(),an.end());
an.erase(unique(an.begin(),an.end()),an.end());
sz=an.size();
root[0]=build(1,sz);
for(int i=1;i<=n;i++){
int pos=getid(C[i].a);
root[i]=update(1,sz,pos,root[i-1]);
}
get(1,n,1,n);
for(int i=1;i<=n;i++){
cout<<ans[i]<<"\n";
}
}
int main(){
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
solve();
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 7772kb
input:
3 2 5 4 3 3 7
output:
7 11 16
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 168ms
memory: 109556kb
input:
200000 466436993 804989151 660995237 756645598 432103296 703610564 6889895 53276988 873617076 822481192 532911431 126844295 623111499 456772252 937464699 762157133 708503076 786039753 78556972 5436013 582960979 398984169 786333369 325119902 930705057 615928139 924915828 506145001 164984329 208212435...
output:
1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 1000000010 100...
result:
wrong answer 1st lines differ - expected: '1318594', found: '1000000010'