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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 |
---|---|---|---|---|---|---|---|---|---|
#650272 | #5069. Vacation | Shumomo | WA | 758ms | 169220kb | C++14 | 8.2kb | 2024-10-18 14:23:39 | 2024-10-18 14:23:39 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
long long num,c;
struct seg2{
vector<long long> a,v;
void build(int rt,int l,int r){
if(l==r){
v[rt]=a[l];
return;
}
int mid=(l+r)>>1;
build(rt<<1,l,mid);
build(rt<<1|1,mid+1,r);
v[rt]=max(v[rt<<1],v[rt<<1|1]);
}
void update(int rt,int l,int r,int ll,long long xx){
if(l==r){
v[rt]=xx;
return;
}
int mid=(l+r)>>1;
if(xx<=mid)update(rt<<1,l,mid,ll,xx);
else update(rt<<1|1,mid+1,r,ll,xx);
v[rt]=max(v[rt<<1],v[rt<<1|1]);
return;
}
void change(int x,long long y){
if(a[x]==y)return;
a[x]=y;
update(1,1,num,x,y);
return;
}
long long query(int rt,int l,int r,int ll,int rr){
if(l>rr||r<ll)return 0;
if(l>=ll&&r<=rr)return v[rt];
int mid=(l+r)>>1;
return max(query(rt<<1,l,mid,ll,rr),query(rt<<1|1,mid+1,r,ll,rr));
}
}tr2,tr3;
struct seg1{
vector<long long> a,b,f,g,lazyf,lazyg,fl;
struct node{
long long fmx,gmx,ans;
node operator +(const node bb)const{
node rtn;
rtn.fmx=max(fmx,bb.fmx);
rtn.gmx=max(gmx,bb.gmx);
rtn.ans=max(ans,bb.ans);
rtn.ans=max(rtn.ans,fmx+bb.gmx);
return rtn;
}
};
vector<node> v;
void pushdown(int rt){
if(lazyf[rt]){
lazyf[rt<<1]+=lazyf[rt];
lazyf[rt<<1|1]+=lazyf[rt];
v[rt<<1].fmx+=lazyf[rt];
v[rt<<1|1].fmx+=lazyf[rt];
if(!fl[rt<<1])v[rt<<1].ans+=lazyf[rt];
if(!fl[rt<<1|1])v[rt<<1|1].ans+=lazyf[rt];
lazyf[rt]=0;
}
if(lazyg[rt]){
lazyg[rt<<1]+=lazyg[rt];
lazyg[rt<<1|1]+=lazyg[rt];
v[rt<<1].gmx+=lazyg[rt];
v[rt<<1|1].gmx+=lazyg[rt];
if(!fl[rt<<1])v[rt<<1].ans+=lazyg[rt];
if(!fl[rt<<1|1])v[rt<<1|1].ans+=lazyg[rt];
lazyg[rt]=0;
}
}
void build(int rt,int l,int r){
if(l==r){
v[rt].fmx=f[l];
v[rt].gmx=g[l];
v[rt].ans=0;
fl[rt]=1;
return;
}
int mid=(l+r)>>1;
build(rt<<1,l,mid);
build(rt<<1|1,mid+1,r);
v[rt]=v[rt<<1]+v[rt<<1|1];
return;
}
node query1(int rt,int l,int r,int ll){
if(l==r)return v[rt];
int mid=(l+r)>>1;
node tmp=v[rt<<1];
tmp.ans=tmp.gmx=0;
pushdown(rt);
node tttmp=query1(rt<<1,l,mid,ll);
tttmp=tttmp+v[rt<<1|1];
// cout<<tttmp.ans<<endl;
tttmp=tmp+query1(rt<<1|1,mid+1,r,ll);
// cout<<tttmp.ans<<endl;
// cout<<v[rt].ans<<endl;
if(ll<=mid)return query1(rt<<1,l,mid,ll)+v[rt<<1|1];
else return tmp+query1(rt<<1|1,mid+1,r,ll);
}
node query2(int rt,int l,int r,int ll){
if(l==r)return v[rt];
int mid=(l+r)>>1;
node tmp=v[rt<<1|1];
tmp.ans=tmp.fmx=0;
pushdown(rt);
if(ll<=mid)return query2(rt<<1,l,mid,ll)+tmp;
else return v[rt<<1]+query2(rt<<1|1,mid+1,r,ll);
}
node query3(int rt,int l,int r,int ll){
if(l>ll){
node tmp=v[rt];
tmp.fmx=tmp.ans=0;
return tmp;
}
if(r<=ll){
node tmp=v[rt];
tmp.gmx=tmp.ans=0;
return tmp;
}
int mid=(l+r)>>1;
pushdown(rt);
return query3(rt<<1,l,mid,ll)+query3(rt<<1|1,mid+1,r,ll);
}
node query4(int rt,int l,int r,int ll,int rr){
if(l>=ll&&r<=rr)return v[rt];
if(l>rr){
node tmp;
tmp.gmx=tmp.fmx=tmp.ans=0;
return tmp;
}
if(r<ll){
node tmp=v[rt];
tmp.gmx=tmp.ans=0;
return tmp;
}
int mid=(l+r)>>1;
pushdown(rt);
return query4(rt<<1,l,mid,ll,rr)+query4(rt<<1|1,mid+1,r,ll,rr);
}
long long Query1(int x){
node rtn=query1(1,1,c,x);
long long tmp=max(rtn.ans,rtn.fmx);
return max(tmp,rtn.gmx);
}
long long Query2(int x){
node rtn=query2(1,1,c,x);
long long tmp=max(rtn.ans,rtn.fmx);
return max(tmp,rtn.gmx);
}
long long Query3(int l,int r){
node rtn=query3(1,1,c,r);
long long tmp=max(0ll,rtn.fmx)+max(0ll,rtn.gmx);
rtn=query4(1,1,c,l,r);
tmp=max(tmp,rtn.gmx);
tmp=max(tmp,rtn.fmx);
tmp=max(tmp,rtn.ans);
return tmp;
}
void update1(int rt,int l,int r,int ll,int rr,long long xx){
if(l>rr||r<ll)return;
if(l>=ll&&r<=rr){
lazyg[rt]+=xx;
v[rt].gmx+=xx;
if(l!=r)v[rt].ans+=xx;
return;
}
int mid=(l+r)>>1;
pushdown(rt);
update1(rt<<1,l,mid,ll,rr,xx);
update1(rt<<1|1,mid+1,r,ll,rr,xx);
v[rt]=v[rt<<1]+v[rt<<1|1];
}
void update2(int rt,int l,int r,int ll,int rr,long long xx){
if(l>rr||r<ll)return;
if(l>=ll&&r<=rr){
lazyf[rt]+=xx;
v[rt].fmx+=xx;
if(l!=r)v[rt].ans+=xx;
return;
}
int mid=(l+r)>>1;
pushdown(rt);
update2(rt<<1,l,mid,ll,rr,xx);
update2(rt<<1|1,mid+1,r,ll,rr,xx);
v[rt]=v[rt<<1]+v[rt<<1|1];
}
void bbuild(){
for(int i=1;i<=c;i++)f[i]=f[i-1]+b[i];
for(int i=c;i;i--)g[i]=g[i+1]+a[i];
build(1,1,c);
return;
}
void change1(int x,long long y){
if(a[x]==y)return;
update1(1,1,c,1,x,y-a[x]);
a[x]=y;
}
void change2(int x,long long y){
if(b[x]==y)return;
update2(1,1,c,x,c,y-b[x]);
b[x]=y;
}
}tr1;
struct seg0{
struct node{
long long ls,rs,ss,mx;
node operator +(const node bb){
node rtn;
rtn.ls=max(ls,ss+bb.ls);
rtn.rs=max(ss+bb.rs,rs);
rtn.ss=ss+bb.ss;
rtn.mx=max(mx,bb.mx);
rtn.mx=max(rtn.mx,rs+bb.ls);
return rtn;
}
}v[1000009];
long long a[200009];
void build(int rt,int l,int r){
if(l==r){
v[rt].ls=v[rt].rs=v[rt].ss=v[rt].mx=a[l];
return;
}
int mid=(l+r)>>1;
build(rt<<1,l,mid);
build(rt<<1|1,mid+1,r);
v[rt]=v[rt<<1]+v[rt<<1|1];
}
void update(int rt,int l,int r,int ll,int yy){
if(l==r){
a[ll]=yy;
v[rt].ls=v[rt].rs=v[rt].ss=v[rt].mx=yy;
return;
}
int mid=(l+r)>>1;
if(ll<=mid)update(rt<<1,l,mid,ll,yy);
else update(rt<<1|1,mid+1,r,ll,yy);
v[rt]=v[rt<<1]+v[rt<<1|1];
}
node query(int rt,int l,int r,int ll,int rr){
if(l>=ll&&r<=rr)return v[rt];
int mid=(l+r)>>1;
if(ll<=mid&&rr>mid)return query(rt<<1,l,mid,ll,rr)+query(rt<<1|1,mid+1,r,ll,rr);
if(ll<=mid)return query(rt<<1,l,mid,ll,rr);
else return query(rt<<1|1,mid+1,r,ll,rr);
}
} tr0;
int main(){
long long n,m,bl[200009],lb[200009],a[200009],op,x,y,ans;
scanf("%lld%lld%lld",&n,&m,&c);
num=c;
bl[0]=0;
for(int i=1;i<=n;i++){
scanf("%lld",a+i);
num++;
if(num<=c){
bl[i]=bl[i-1];
lb[i]=num;
}
else{
bl[i]=bl[i-1]+1;
lb[i]=1;
num=1;
}
}
num=bl[n];
vector<seg1> tr1;
tr1.resize(num+2);
for(int i=1;i<=num;i++){
tr1[i].a.resize(c+2);
tr1[i].b.resize(c+2);
tr1[i].g.resize(c+2);
tr1[i].f.resize(c+2);
tr1[i].fl.resize((c+2)<<1);
tr1[i].lazyf.resize((c+2)<<1);
tr1[i].lazyg.resize((c+2)<<1);
tr1[i].v.resize((c+2)<<1);
}
tr2.a.resize(num+2);
tr2.v.resize((num+2)<<1);
tr3.a.resize(num+2);
tr3.v.resize((num+2)<<1);
for(int i=1;i<=n;i++){
tr1[bl[i]].a[lb[i]]=a[i];
if(bl[i]>1)tr1[bl[i]-1].b[lb[i]]=a[i];
tr0.a[i]=a[i];
}
tr0.build(1,1,n);
for(int i=1;i<=num;i++){
// cout<<i<<endl;
tr1[i].bbuild();
// cout<<i<<endl;
tr2.a[bl[i]]=tr0.query(1,1,n,bl[i]*c-c+1,bl[i]*c).mx;
// cout<<i<<endl;
tr3.a[bl[i]]=tr1[i].v[1].ans;
// cout<<i<<endl;
}
tr2.build(1,1,num);
tr3.build(1,1,num);
for(int i=1;i<=m;i++){
scanf("%lld",&op);
if(op==1){
scanf("%lld%lld",&x,&y);
tr0.update(1,1,n,x,y);
tr1[bl[x]].change1(lb[x],y);
if(bl[x]>1)tr1[bl[x]-1].change2(lb[x],y);
tr2.change(bl[x],tr0.query(1,1,n,bl[x]*c-c+1,bl[x]*c).mx);
if(bl[x]>1)tr3.change(bl[x]-1,tr1[bl[x]-1].v[1].ans);
tr3.change(bl[x],tr1[bl[x]].v[1].ans);
}
else{
scanf("%lld%lld",&x,&y);
if(y-x+1<=c){
printf("%lld\n",max(tr0.query(1,1,n,x,y).mx,0ll));
}
else if(bl[y]==bl[x]+1){
ans=tr1[bl[x]].Query3(lb[x],lb[y]);
ans=max(ans,tr0.query(1,1,n,x,x+c-1).mx);
ans=max(ans,tr0.query(1,1,n,y-c+1,y).mx);
// cout<<tr0.query(1,1,n,x,x+c-1).mx<<" "<<tr0.query(1,1,n,y-c+1,y).mx<<endl;
printf("%lld\n",max(ans,0ll));
}
else if(bl[y]==bl[x]+2){
ans=max(tr1[bl[x]].Query1(lb[x]),tr1[bl[y]-1].Query2(lb[y]));
ans=max(ans,tr2.a[bl[x]+1]);
ans=max(ans,tr0.query(1,1,n,x,x+c-1).mx);
ans=max(ans,tr0.query(1,1,n,y-c+1,y).mx);
printf("%lld\n",max(ans,0ll));
}
else{
ans=max(tr1[bl[x]].Query1(lb[x]),tr1[bl[y]-1].Query2(lb[y]));
ans=max(ans,tr2.query(1,1,num,bl[x]+1,bl[y]-1));
ans=max(ans,tr3.query(1,1,num,bl[x]+1,bl[y]-2));
ans=max(ans,tr0.query(1,1,n,x,x+c-1).mx);
ans=max(ans,tr0.query(1,1,n,y-c+1,y).mx);
printf("%lld\n",max(ans,0ll));
}
}
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 8500kb
input:
5 6 3 0 -5 -3 8 -3 2 3 5 1 2 5 2 1 5 1 4 -3 2 3 5 2 1 5
output:
8 10 0 5
result:
ok 4 number(s): "8 10 0 5"
Test #2:
score: -100
Wrong Answer
time: 758ms
memory: 169220kb
input:
200000 500000 1 387060158 961744470 37167782 737122872 -532977662 1604246 -30977399 871848791 444997246 454204578 -813187501 -660394286 448014171 -835115276 -631880452 887715308 258530352 805589560 -414653327 -156732249 -335096199 -80266237 367896009 738406627 -903652056 446120866 415658444 -1347916...
output:
999902477 999981999 999343404 999847372 999957587 998160312 999981999 999981999 999981999 999980061 999981999 999981999 999981999 999876122 999981999 999996602 999981999 999981999 999981999 999723649 999981999 999957587 999896087 999981999 999981999 999981999 999981999 999981999 999957587 999981999 ...
result:
wrong answer 622nd numbers differ - expected: '999932568', found: '999921057'