//ulimit -s unlimited
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vl vector<long long>
#define vi vector<int>
#define vb vector<bool>
#define pql priority_queue<long long>
#define pqp priority_queue<pair<ll,ll> >
#define pqs priority_queue<ll,vl,greater<ll> >
#define md ((ll) 1e9+7)
vl st;
//nl node left;nr node right;ql query left;qr query right;n node key;
ll minq(ll nl,ll nr,ll ql,ll qr,ll n){
if(qr>=nr && ql<=nl){
return st[n];
}
else if(qr<nl || ql>nr){
return md;
}
return min(minq(nl,(nl+nr)/2,ql,qr,2*n),minq((nl+nr)/2 + 1,nr,ql,qr,2*n+1));
}
void updateq(ll nl,ll nr,ll n,ll i,ll v){
if(nl == nr && nl == i){
st[n] = min(v,st[n]);
return;
}
ll mid = (nl+nr)/2;
if(i<=mid){
updateq(nl,mid,2*n,i,v);
}
else{
updateq(mid+1,nr,2*n+1,i,v);
}
st[n] = min(st[2*n],st[2*n+1]);
}
void solve(){
ll i,j,k,n,m;
cin>>n>>m;
ll a[n+1];
a[0] = 0;
for(i=1;i<=n;i++){
cin>>a[i];
a[i] -= i*m;
}
map<ll,ll> cc;
for(i=0;i<=n;i++){
cc[a[i]] = 0;
}
i = 0;
for(auto &c:cc){
c.second = i;
i++;
}
k = cc.size();
k++;
st.resize(4*k,md);
ll dp[n+1];
for(i=n;i>=0;i--){
ll ans = minq(0,k-1,0,cc[a[i]],1);
dp[i] = ans-i-1;
dp[i] = min(dp[i],n-i);
updateq(0,k-1,1,cc[a[i]],dp[i]+i);
}
cout<<dp[0]<<"\n";
// for(i=0;i<=n;i++){
// cout<<dp[i]<<" ";
// }
// cout<<"\n";
// for(auto c:cc){
// cout<<c.first<<","<<c.second<<" ";
// }
// cout<<"\n";
// cout<<cc.size()<<"\n";
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int t;
//cin >> t;
t = 1;
while(t--)
solve();
return 0;
}
Compilation message
triusis.cpp: In function 'void solve()':
triusis.cpp:43:10: warning: unused variable 'j' [-Wunused-variable]
43 | ll i,j,k,n,m;
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
320 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
312 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
320 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
312 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
3 ms |
724 KB |
Output is correct |
21 |
Correct |
3 ms |
840 KB |
Output is correct |
22 |
Correct |
4 ms |
720 KB |
Output is correct |
23 |
Correct |
5 ms |
852 KB |
Output is correct |
24 |
Correct |
4 ms |
852 KB |
Output is correct |
25 |
Correct |
4 ms |
852 KB |
Output is correct |
26 |
Correct |
3 ms |
844 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
3 ms |
852 KB |
Output is correct |
30 |
Correct |
3 ms |
764 KB |
Output is correct |
31 |
Correct |
2 ms |
592 KB |
Output is correct |
32 |
Correct |
3 ms |
888 KB |
Output is correct |
33 |
Correct |
3 ms |
852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
3 ms |
724 KB |
Output is correct |
5 |
Correct |
3 ms |
840 KB |
Output is correct |
6 |
Correct |
4 ms |
720 KB |
Output is correct |
7 |
Correct |
5 ms |
852 KB |
Output is correct |
8 |
Correct |
4 ms |
852 KB |
Output is correct |
9 |
Correct |
4 ms |
852 KB |
Output is correct |
10 |
Correct |
3 ms |
844 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
3 ms |
852 KB |
Output is correct |
14 |
Correct |
3 ms |
764 KB |
Output is correct |
15 |
Correct |
2 ms |
592 KB |
Output is correct |
16 |
Correct |
3 ms |
888 KB |
Output is correct |
17 |
Correct |
3 ms |
852 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
212 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
212 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
312 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
5 ms |
968 KB |
Output is correct |
35 |
Correct |
4 ms |
900 KB |
Output is correct |
36 |
Correct |
4 ms |
852 KB |
Output is correct |
37 |
Correct |
5 ms |
844 KB |
Output is correct |
38 |
Correct |
1 ms |
400 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
3 ms |
596 KB |
Output is correct |
41 |
Correct |
2 ms |
340 KB |
Output is correct |
42 |
Correct |
5 ms |
852 KB |
Output is correct |
43 |
Correct |
3 ms |
852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
968 KB |
Output is correct |
2 |
Correct |
4 ms |
900 KB |
Output is correct |
3 |
Correct |
4 ms |
852 KB |
Output is correct |
4 |
Correct |
5 ms |
844 KB |
Output is correct |
5 |
Correct |
1 ms |
400 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
3 ms |
596 KB |
Output is correct |
8 |
Correct |
2 ms |
340 KB |
Output is correct |
9 |
Correct |
5 ms |
852 KB |
Output is correct |
10 |
Correct |
3 ms |
852 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
3 ms |
724 KB |
Output is correct |
15 |
Correct |
3 ms |
840 KB |
Output is correct |
16 |
Correct |
4 ms |
720 KB |
Output is correct |
17 |
Correct |
5 ms |
852 KB |
Output is correct |
18 |
Correct |
4 ms |
852 KB |
Output is correct |
19 |
Correct |
4 ms |
852 KB |
Output is correct |
20 |
Correct |
3 ms |
844 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
3 ms |
852 KB |
Output is correct |
24 |
Correct |
3 ms |
764 KB |
Output is correct |
25 |
Correct |
2 ms |
592 KB |
Output is correct |
26 |
Correct |
3 ms |
888 KB |
Output is correct |
27 |
Correct |
3 ms |
852 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
0 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
320 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
1 ms |
212 KB |
Output is correct |
41 |
Correct |
1 ms |
212 KB |
Output is correct |
42 |
Correct |
0 ms |
312 KB |
Output is correct |
43 |
Correct |
0 ms |
212 KB |
Output is correct |
44 |
Correct |
151 ms |
22580 KB |
Output is correct |
45 |
Correct |
360 ms |
24180 KB |
Output is correct |
46 |
Correct |
342 ms |
24056 KB |
Output is correct |
47 |
Correct |
325 ms |
24124 KB |
Output is correct |
48 |
Correct |
122 ms |
22600 KB |
Output is correct |
49 |
Correct |
146 ms |
23304 KB |
Output is correct |
50 |
Correct |
38 ms |
5304 KB |
Output is correct |
51 |
Correct |
24 ms |
5320 KB |
Output is correct |
52 |
Correct |
112 ms |
13616 KB |
Output is correct |
53 |
Correct |
21 ms |
4668 KB |
Output is correct |
54 |
Correct |
129 ms |
23116 KB |
Output is correct |
55 |
Correct |
136 ms |
22988 KB |
Output is correct |