CSES - APIO 2007 - Results
Submission details
Task:Backup
Sender:jarvenp
Submission time:2019-03-07 16:45:09 +0200
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1, 2, 3details
#20.02 s1, 2, 3details
#30.31 s3details
#40.27 s3details
#5ACCEPTED0.02 s1, 2, 3details
#60.04 s2, 3details
#7ACCEPTED0.02 s1, 2, 3details
#80.01 s1, 2, 3details
#90.02 s2, 3details
#100.04 s2, 3details
#11ACCEPTED0.11 s3details
#120.33 s3details
#13ACCEPTED0.18 s3details
#14ACCEPTED0.02 s1, 2, 3details
#150.01 s2, 3details
#16ACCEPTED0.06 s3details
#170.32 s3details
#18ACCEPTED0.02 s2, 3details
#19ACCEPTED0.02 s2, 3details
#200.21 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:57:15: warning: unused variable 'temp2' [-Wunused-variable]
       int64_t temp2 = (*it2).S;
               ^~~~~

Code

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

#define F first
#define S second

int64_t n,k;
int64_t d[100000];
multiset<pair<int64_t,int64_t>> ds;
set<pair<int64_t,int64_t>> vals;

int main(){
  cin >> n >> k;
  for(int64_t i=0; i<n; i++){
    cin >> d[i];
    vals.insert({d[i],i});
    if(i > 0){
      ds.insert({d[i]-d[i-1],i});
    }
  }
  int64_t ans = 0;
  for(int64_t i=0; i<k; i++){
    pair<int64_t,int64_t> p = *ds.begin();
    ds.erase(p);
    set<pair<int64_t,int64_t>>::iterator it;
    if((d[p.S]-d[p.S-1]) != p.F){
      int64_t i2;
      for(i2=p.S-1; (d[p.S]-d[i2]) != p.F; i2 -= 2){
	ans += (d[i2+1]-d[i2]);
	ans -= (d[i2]-d[i2-1]);
      }
      ans += (d[i2+1]-d[i2]);
      it = vals.find({d[i2],i2});
    }
    else{
      it = vals.find({d[p.S-1],p.S-1});
      ans += p.F;
    }
    auto it2 = vals.find({d[p.S],p.S});
    if((it != vals.begin()) && (it2 != --vals.end())){
      it--;
      it2++;
      ds.insert({(*it2).F-(*it).F,(*it2).S});
      it++;
      it2--;
    }
    if(it != vals.begin()){
      int64_t temp = (*it).F;
      int64_t temp2 = (*it).S;
      it--;
      ds.erase({temp-(*it).F,temp2});
      it++;
    }
    vals.erase(it);
    if(it2 != --vals.end()){
      int64_t temp = (*it2).F;
      int64_t temp2 = (*it2).S;
      it2++;
      ds.erase({(*it2).F-temp,(*it2).S});
      it2--;
    }
     vals.erase(it2);
     /* for(auto it3 = ds.begin(); it3 != ds.end(); it3++){
      cout << (*it3).F << " ";
    }
    cout << "\n";
    for(auto it3 = vals.begin(); it3 !=vals.end(); it3++){
      cout << (*it3).F << " ";
    }
    cout << "\n";
    cout << ans << "\n";*/
  }
  cout << ans << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
2 1
0
1000000000

correct output
1000000000

user output
1000000000

Test 2

Group: 1, 2, 3

Verdict:

input
17 8
101266
101394
101458
101490
...

correct output
340

user output
425

Test 3

Group: 3

Verdict:

input
100000 49000
29983
53806
76909
106815
...

correct output
411321413

user output
424417645

Test 4

Group: 3

Verdict:

input
100000 30000
29983
53806
76909
106815
...

correct output
100755932

user output
101935443

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 10
126229031
250138471
333910089
443521720
...

correct output
537092323

user output
537092323

Test 6

Group: 2, 3

Verdict:

input
10000 4999
168328
266967
462469
639689
...

correct output
492516409

user output
494438934

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
10 4
165
375
439
456
...

correct output
44

user output
44

Test 8

Group: 1, 2, 3

Verdict:

input
20 9
4336
4500
4552
4702
...

correct output
773

user output
776

Test 9

Group: 2, 3

Verdict:

input
2001 1000
1230
1440
1630
2230
...

correct output
493503

user output
493701

Test 10

Group: 2, 3

Verdict:

input
10000 3000
245408
417449
650973
863296
...

correct output
101056127

user output
101992308

Test 11

Group: 3

Verdict: ACCEPTED

input
50000 20000
37035
37042
37046
37052
...

correct output
129968

user output
129968

Test 12

Group: 3

Verdict:

input
99999 48000
15929
43928
65765
86730
...

correct output
375524431

user output
388619226

Test 13

Group: 3

Verdict: ACCEPTED

input
100000 1000
536
9214
34619
53734
...

correct output
75975

user output
75975

Test 14

Group: 1, 2, 3

Verdict: ACCEPTED

input
10 4
5851
5854
5856
5859
...

correct output
2664

user output
2664

Test 15

Group: 2, 3

Verdict:

input
100 45
3712
13742
17394
19428
...

correct output
140256

user output
164410

Test 16

Group: 3

Verdict: ACCEPTED

input
20000 400
3174
3175
3176
3179
...

correct output
803105

user output
803105

Test 17

Group: 3

Verdict:

input
100000 49000
3605
14510
18001
20881
...

correct output
162316123

user output
190713333

Test 18

Group: 2, 3

Verdict: ACCEPTED

input
100 50
0
1000000
1000002
1000005
...

correct output
1002499

user output
1002499

Test 19

Group: 2, 3

Verdict: ACCEPTED

input
1000 500
0
1000000
1000002
1000005
...

correct output
1249999

user output
1249999

Test 20

Group: 3

Verdict:

input
100000 49494
123
65659
98427
114811
...

correct output
250954854

user output
308166909