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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#194114 | #5098. 第一代图灵机 | huazai676 | 0 | 0ms | 0kb | C++14 | 2.3kb | 2023-09-30 19:04:04 | 2023-09-30 19:04:04 |
Judging History
answer
#include<iostream>
#include<cstring>
#include<algorithm>
#include<set>
using namespace std;
typedef long long ll;
const int N=2e5+10;
int n,m,q;
ll s[N],g[N<<2];
int lst[N],nxt[N],pos[N],col[N];
set<int> c[N];
struct seg
{
int l,r,mx;
ll s;
}tr[N<<2],ans;
ll f(int u,int k)
{
if(tr[u].l==tr[u].r) return s[tr[u].l]-s[max(k,lst[tr[u].l])];
if(k>=tr[u<<1].mx)
{
int mid=tr[u].l+tr[u].r>>1;
return max(f(u<<1|1,k),s[mid]-s[k]);
}
else return max(f(u<<1,k),g[u<<1|1]? g[u<<1|1]:g[u<<1|1]=f(u<<1|1,tr[u<<1].mx));
}
seg merge(seg u,seg v,int idv)
{
return {u.l,v.r,max(u.mx,v.mx),max(u.s,f(idv,u.mx))};
}
void build(int u,int l,int r)
{
tr[u]={l,r,lst[l],s[l]-s[lst[l]]};
if(l==r) return;
int mid=l+r>>1;
build(u<<1,l,mid),build(u<<1|1,mid+1,r);
tr[u]=merge(tr[u<<1],tr[u<<1|1],u<<1|1);
}
void query(int u,int l,int r)
{
if(l<=tr[u].l&&tr[u].r<=r)
{
ans=merge(ans,tr[u],u);
return;
}
int mid=tr[u].l+tr[u].r>>1;
if(r<=mid) query(u<<1,l,r);
else if(l>mid) query(u<<1|1,l,r);
else query(u<<1,l,r),query(u<<1|1,l,r);
}
void modify(int u,int x,int k)
{
return;
if(tr[u].l==tr[u].r)
{
lst[x]=tr[u].mx=k;
return;
}
int mid=tr[u].l+tr[u].r>>1;
if(x<=mid) modify(u<<1,x,k);
else modify(u<<1|1,x,k);
g[u<<1|1]=0;
tr[u]=merge(tr[u<<1],tr[u<<1|1],u<<1|1);
}
int getl(int u,int k)
{
if(tr[u].l==tr[u].r) return tr[u].l;
if(tr[u<<1].mx>=k) return getl(u<<1,k);
else return getl(u<<1|1,k);
}
int main()
{
scanf("%d%d%d",&n,&m,&q);
for(int i=1;i<=m;i++) c[i].insert(0),c[i].insert(n+1);
for(int i=1;i<=n;i++) scanf("%lld",&s[i]),s[i]+=s[i-1];
for(int i=1;i<=n;i++)
{
int k;
scanf("%d",&k);
col[i]=k;
nxt[lst[i]=pos[k]]=i;
pos[k]=i;
c[k].insert(i);
}
build(1,1,n);
while(q--)
{
int op,l,r;
scanf("%d%d%d",&op,&l,&r);
if(op==1)
{
int l0=getl(1,l-1);
ans={0,0,0,0};
query(1,l0,r);
printf("%lld\n",max(ans.s,s[l0-1]-s[l-1]));
}
else
{
if(col[l]==r) continue;
if(nxt[l]) modify(1,nxt[l],lst[l]);
nxt[lst[l]]=nxt[l];
c[col[l]].erase(l);
c[col[l]=r].insert(l);
auto it1=c[r].lower_bound(l);
auto it2=it1++;
it1--;
nxt[l]=*it2==n+1? 0:*it2;
modify(1,l,*it1);
nxt[*it1]=l;
if(nxt[l]) modify(1,nxt[l],l);
}
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Runtime Error
Test #1:
score: 0
Runtime Error
input:
5000 200 5000 2315 3433 1793 4621 4627 4561 289 4399 3822 2392 392 4581 2643 2441 4572 4649 2981 3094 4206 2057 761 2516 2849 3509 3033 658 4965 3316 3269 4284 4961 753 1187 2515 1377 1725 4743 4761 3823 3464 4859 989 2401 953 875 1481 2181 103 2067 2625 3296 4721 61 3843 1607 997 4385 1284 4299 441...
output:
result:
Subtask #2:
score: 0
Runtime Error
Test #3:
score: 0
Runtime Error
input:
200000 10 200000 55651 97298 108697 86619 60721 199951 10610 162267 154301 138848 39191 18605 101369 57073 34977 101576 71252 143401 89587 160521 166491 38442 150761 35579 25571 121311 38033 38483 144639 41401 179161 54872 157905 137601 46863 187656 171901 43715 41036 150741 69057 102031 130561 4772...
output:
1232419 1222519 1232419 1232419 1232419 1232419 1232419 1232419 1232419 1232419 1040511 1148070 1232419 1232419 1232419 1232419 1206368 1206368 1232419 1232419 1232419 1222519 1167757 1206368 1214212 1222519 1232419 1222519 1222519 1160928 1011843 1232419 1232419 1189403 1222519 1232419 1222519 1148...
result:
Subtask #3:
score: 0
Runtime Error
Test #5:
score: 0
Runtime Error
input:
200000 20000 200000 30681 32496 35471 48191 159123 69792 120915 150673 187226 158493 36275 26856 107976 124777 145229 69745 183961 14497 144808 153612 185893 137681 66417 46802 19345 113322 168046 128149 191001 135433 13201 139214 59489 81178 42343 163158 110121 119201 97501 53079 158755 192241 1132...
output:
result:
Subtask #4:
score: 0
Skipped
Dependency #1:
0%
Subtask #5:
score: 0
Skipped
Dependency #4:
0%