CSES - Datatähti 2021 alku - Results
Submission details
Task:Alitaulukot
Sender:Guuber
Submission time:2020-09-28 10:10:19 +0300
Language:C++ (C++11)
Status:READY
Result:37
Feedback
groupverdictscore
#1ACCEPTED11
#2ACCEPTED26
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.01 s2, 3details
#7ACCEPTED0.01 s2, 3details
#8ACCEPTED0.01 s2, 3details
#9ACCEPTED0.01 s2, 3details
#10ACCEPTED0.01 s2, 3details
#110.02 s3details
#120.02 s3details
#130.03 s3details
#140.05 s3details
#150.05 s3details
#160.04 s3details
#170.04 s3details

Code

#include<bits/stdc++.h>
using namespace std;


int minimi[101010];
int maksimi[101010];
int koko = 1;
int laskemin(int alku, int loppu){
int mini = 1e9;
        alku += koko-1;
        loppu += koko-1;
        while(alku <= loppu){
                if(alku % 2 == 1) mini = min(mini, minimi[alku++]);
                if(loppu % 2 == 0) mini = min(mini, minimi[loppu--]);
                alku /= 2;
                loppu /= 2;
        }
        return mini;
}

int laskemax(int alku, int loppu){
        int mini = 0;
        alku += koko-1;
        loppu += koko-1;
        while(alku <= loppu){
                if(alku % 2 == 1) mini = max(mini, maksimi[alku++]);
                if(loppu % 2 == 0) mini = max(mini, maksimi[loppu--]);
                alku /= 2;
                loppu /= 2;
        }
        return mini;
}
int main(){
        vector<int> ve = {};
        int n,k;
        cin >> n >> k;
        for(int i = 0; i < n; i++){
                int a;
                cin >> a;
                ve.push_back(a);
        }

        while(koko < n) koko *= 2;

        for(int i = 0; i < 101010; i++) minimi[i] = 1e9;
        for(int i = koko; i < koko+n; i++){
                minimi[i] = ve[i-koko];
                maksimi[i] = ve[i-koko];
        }
        for(int i = koko-1; i > 0; i--){
                minimi[i] = min(minimi[i*2], minimi[i*2+1]);
                maksimi[i] = max(maksimi[i*2], maksimi[i*2+1]);
        }
        int counter = 0;       

        for(int i = 1; i <= n; i++){
                int arvaus = -1;
                for(int b = n; b >= 1; b/=2){
                        //cout << arvaus + b << "\n";
                        while(arvaus + b <= n && b >= 0 && laskemax(i, arvaus + b) - laskemin(i, arvaus+b) <= k) arvaus += b;
                }
                counter += arvaus-i+1;
        }
        cout << counter << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
5050

user output
5050

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 2
5 5 2 4 3 5 3 4 3 2 3 4 5 4 4 ...

correct output
317

user output
317

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 10
71 60 61 96 25 10 10 9 84 85 1...

correct output
119

user output
119

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 990000000
111122929 961821360 578238211 ...

correct output
4006

user output
4006

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 1000000000
553190572 453407680 667300705 ...

correct output
5050

user output
5050

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
2000 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
2001000

user output
2001000

Test 7

Group: 2, 3

Verdict: ACCEPTED

input
2000 2
4 4 1 4 2 3 1 2 1 3 5 2 2 4 4 ...

correct output
6340

user output
6340

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
2000 10
65 88 33 88 41 10 17 38 22 3 8...

correct output
2413

user output
2413

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
2000 999000000
746120950 772769620 721488968 ...

correct output
1287776

user output
1287776

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
2000 1000000000
621947980 510355354 756705418 ...

correct output
2001000

user output
2001000

Test 11

Group: 3

Verdict:

input
100000 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
5000050000

user output
(empty)

Test 12

Group: 3

Verdict:

input
100000 2
3 3 1 3 3 1 1 5 1 2 5 4 1 3 1 ...

correct output
317066

user output
(empty)

Test 13

Group: 3

Verdict:

input
100000 10
10 3 6 3 43 60 5 48 15 27 86 4...

correct output
123292

user output
(empty)

Test 14

Group: 3

Verdict:

input
100000 999990000
460235639 963048588 47270983 3...

correct output
4946886742

user output
(empty)

Test 15

Group: 3

Verdict:

input
100000 1000000000
885457070 18257718 927615960 3...

correct output
5000050000

user output
(empty)

Test 16

Group: 3

Verdict:

input
100000 50000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
3750075000

user output
(empty)

Test 17

Group: 3

Verdict:

input
100000 50000
100000 99999 99998 99997 99996...

correct output
3750075000

user output
(empty)