QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#113285 | #6626. Real Mountains | eyiigjkn | 3 | 5ms | 20208kb | C++14 | 2.2kb | 2023-06-16 21:21:50 | 2023-06-16 21:21:51 |
Judging History
answer
# include <bits/stdc++.h>
using namespace std;
using ll=long long;
constexpr int mod=1e6+3;
int ans=0,a[1000010],b[1000010],X[1000010],mx1[1000010],mx2[1000010],le[1000010],ri[1000010],f[1000010][20],g[1000010][20],N;
set<int> st;
struct Event
{
int v,x;
Event()=default;
Event(int v,int x):v(v),x(x){}
bool operator<(const Event &t)const{return v<t.v;}
}c[2000010];
int calc(int l,int r){return (ll)(l+r)*(r-l+1)/2%mod;}
void add(int &x,const auto &y){x=(x+y)%mod;}
int Qpre(int x,int v)// [1,x] : >=v
{
if(le[v]<=x) return v;
for(int i=__lg(N-v+1);i;i--)
if(f[v][i] && le[f[v][i]]>x)
v=f[v][i];
return f[v][0];
}
int Qsuf(int x,int v)// [x,n] : >=v
{
if(ri[v]>=x) return v;
for(int i=__lg(N-v+1);i;i--)
if(g[v][i] && ri[g[v][i]]<x)
v=g[v][i];
return g[v][0];
}
void work(int L,int R)
{
int sz=st.size();
if(!sz) return;
int l=*st.begin(),r=*st.rbegin(),L1=X[Qpre(l-1,L+1)],L2=X[Qsuf(l+1,L+1)],R1=X[Qpre(r-1,L+1)],R2=X[Qsuf(r+1,L+1)];
if(sz==1) add(ans,(ll)(L1+L2)*(X[R]-X[L])+calc(X[L],X[R]-1));
else add(ans,(2ll*sz-3+L1+R2+min(L2,R1))*(X[R]-X[L])+3ll*(sz-1)*calc(X[L],X[R]-1));
}
int main()
{
ios::sync_with_stdio(false);cin.tie(nullptr);
int n,tot=0;
cin>>n;
for(int i=1;i<=n;i++) cin>>a[i],X[i]=a[i];
sort(X+1,X+n+1);
N=unique(X+1,X+n+1)-X-1;
for(int i=1;i<=n;i++) b[i]=lower_bound(X+1,X+N+1,a[i])-X;
for(int i=n;i;i--) le[b[i]]=i;
for(int i=1;i<=n;i++) ri[b[i]]=i;
int tp=0;
static int stk[1000010];
for(int i=N;i;i--)
{
while(tp && le[stk[tp]]>le[i]) tp--;
f[i][0]=stk[tp];stk[++tp]=i;
for(int j=1;(1<<j)<=N-i;j++) f[i][j]=f[f[i][j-1]][j-1];
}
tp=0;
for(int i=N;i;i--)
{
while(tp && ri[stk[tp]]<ri[i]) tp--;
g[i][0]=stk[tp];stk[++tp]=i;
for(int j=1;(1<<j)<=N-i;j++) g[i][j]=g[g[i][j-1]][j-1];
}
for(int i=1;i<=n;i++) mx1[i]=max(mx1[i-1],b[i]);
for(int i=n;i;i--) mx2[i]=max(mx2[i+1],b[i]);
for(int i=1;i<=n;i++)
if(b[i]<min(mx1[i],mx2[i]))
c[++tot]=Event(b[i],i),c[++tot]=Event(min(mx1[i],mx2[i]),-i);
sort(c+1,c+tot+1);
for(int i=1,j=1;i<=N;i++)
{
if(i>1) work(i-1,i);
for(;j<=tot && c[j].v<=i;j++)
if(c[j].x>0) st.insert(c[j].x);
else st.erase(-c[j].x);
}
cout<<ans<<"\n";
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 3
Accepted
Test #1:
score: 3
Accepted
time: 1ms
memory: 17916kb
input:
3 29 9 9
output:
0
result:
ok 1 number(s): "0"
Test #2:
score: 0
Accepted
time: 2ms
memory: 17800kb
input:
3 62 20 71
output:
7287
result:
ok 1 number(s): "7287"
Test #3:
score: 0
Accepted
time: 1ms
memory: 17820kb
input:
10 72 33 22 22 13 49 53 57 72 85
output:
40403
result:
ok 1 number(s): "40403"
Test #4:
score: 0
Accepted
time: 5ms
memory: 20208kb
input:
5000 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 98 97 97 97 97 9...
output:
481053
result:
ok 1 number(s): "481053"
Test #5:
score: 0
Accepted
time: 2ms
memory: 19976kb
input:
5000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
0
result:
ok 1 number(s): "0"
Test #6:
score: 0
Accepted
time: 2ms
memory: 20020kb
input:
5000 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...
output:
12595
result:
ok 1 number(s): "12595"
Test #7:
score: 0
Accepted
time: 1ms
memory: 18016kb
input:
5000 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100...
output:
299
result:
ok 1 number(s): "299"
Test #8:
score: 0
Accepted
time: 1ms
memory: 18136kb
input:
5000 100 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
224232
result:
ok 1 number(s): "224232"
Test #9:
score: 0
Accepted
time: 0ms
memory: 17772kb
input:
5000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4...
output:
0
result:
ok 1 number(s): "0"
Test #10:
score: 0
Accepted
time: 3ms
memory: 17828kb
input:
5000 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 9...
output:
0
result:
ok 1 number(s): "0"
Test #11:
score: 0
Accepted
time: 1ms
memory: 18132kb
input:
5000 100 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4...
output:
499735
result:
ok 1 number(s): "499735"
Test #12:
score: 0
Accepted
time: 2ms
memory: 20072kb
input:
5000 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 99 9...
output:
461407
result:
ok 1 number(s): "461407"
Subtask #2:
score: 0
Wrong Answer
Dependency #1:
100%
Accepted
Test #13:
score: 0
Wrong Answer
time: 2ms
memory: 18152kb
input:
5000 37 39 93 78 85 71 59 21 57 96 61 59 23 16 57 90 13 59 85 70 62 67 78 97 16 60 8 48 28 53 4 24 1 97 97 98 57 87 96 91 74 54 100 76 86 86 46 39 100 57 70 76 73 55 84 93 64 6 84 39 75 94 30 15 3 31 11 34 27 10 6 81 30 76 60 9 4 47 1 88 17 71 61 30 19 10 4 57 79 37 22 74 84 8 91 58 15 45 7 98 32 46...
output:
216205
result:
wrong answer 1st numbers differ - expected: '216624', found: '216205'
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Skipped
Dependency #3:
0%
Subtask #5:
score: 0
Skipped
Dependency #2:
0%
Subtask #6:
score: 0
Skipped
Dependency #3:
0%
Subtask #7:
score: 0
Skipped
Dependency #1:
100%
Accepted
Dependency #2:
0%