CSES - APIO 2007

CSES - APIO 2007 - Results

Submission details
Task:	Backup
Sender:	henrikaalto
Submission time:	2019-03-07 17:45:00 +0200
Language:	C++
Status:	READY
Result:	30

Feedback
group	verdict	score
#1	ACCEPTED	30
#2	RUNTIME ERROR	0
#3	RUNTIME ERROR	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.04 s	1, 2, 3	details
#2	ACCEPTED	0.19 s	1, 2, 3	details
#3	RUNTIME ERROR	0.02 s	3	details
#4	RUNTIME ERROR	0.02 s	3	details
#5	ACCEPTED	0.20 s	1, 2, 3	details
#6	RUNTIME ERROR	0.02 s	2, 3	details
#7	ACCEPTED	0.14 s	1, 2, 3	details
#8	ACCEPTED	0.20 s	1, 2, 3	details
#9	RUNTIME ERROR	0.03 s	2, 3	details
#10	RUNTIME ERROR	0.03 s	2, 3	details
#11	RUNTIME ERROR	0.02 s	3	details
#12	RUNTIME ERROR	0.02 s	3	details
#13	RUNTIME ERROR	0.01 s	3	details
#14	ACCEPTED	0.15 s	1, 2, 3	details
#15	RUNTIME ERROR	0.01 s	2, 3	details
#16	RUNTIME ERROR	0.01 s	3	details
#17	RUNTIME ERROR	0.03 s	3	details
#18	RUNTIME ERROR	0.01 s	2, 3	details
#19	RUNTIME ERROR	0.01 s	2, 3	details
#20	RUNTIME ERROR	0.01 s	3	details

Compiler report

input/code.cpp: In function 'long int f(int)':
input/code.cpp:28:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(v.size()<k) return 1e18;
      ~~~~~~~~^~

Code

#pragma GCC optimize("unroll-loops,O3")
#include<bits/stdc++.h>
using namespace std;
int n,k;
long d[123];
long f(int x) {
  vector<long> v;
  int it = -1;
  for(int i=0;i<n;i++) {
    if(x & (1<<i)) {
      if(it&1) {
        it += 2;
      }
      else {
        it += 3;
      }
    }
    else {
      if(it&1) {
        it += 3;
      } else {
        it += 2;
      }
    }
    if(it>=n) break;
    v.push_back(d[it]-d[it-1]);
  }
  if(v.size()<k) return 1e18;
  sort(v.begin(),v.end());
  long sum = 0;
  for(int i=0;i<k;i++)
    sum += v[i];
  return sum;
} 

int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  cin >> n >> k;
  assert(n<=20);
  for(int i=0;i<n;i++) cin >> d[i];
  long res = 1e18;
  for(int i=0;i<(1<<20);i++) {
    res = min(res,f(i));
  }
  cout << res << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`2 1 0 1000000000` view save

correct output
`1000000000` view save

user output
`1000000000` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`17 8 101266 101394 101458 101490 ...` view save

correct output
`340` view save

user output
`340` view save

Test 3

Group: 3

Verdict: RUNTIME ERROR

input
`100000 49000 29983 53806 76909 106815 ...` view save

correct output
`411321413` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 4

Group: 3

Verdict: RUNTIME ERROR

input
`100000 30000 29983 53806 76909 106815 ...` view save

correct output
`100755932` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
`20 10 126229031 250138471 333910089 443521720 ...` view save

correct output
`537092323` view save

user output
`537092323` view save

Test 6

Group: 2, 3

Verdict: RUNTIME ERROR

input
`10000 4999 168328 266967 462469 639689 ...` view save

correct output
`492516409` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 4 165 375 439 456 ...` view save

correct output
`44` view save

user output
`44` view save

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
`20 9 4336 4500 4552 4702 ...` view save

correct output
`773` view save

user output
`773` view save

Test 9

Group: 2, 3

Verdict: RUNTIME ERROR

input
`2001 1000 1230 1440 1630 2230 ...` view save

correct output
`493503` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 10

Group: 2, 3

Verdict: RUNTIME ERROR

input
`10000 3000 245408 417449 650973 863296 ...` view save

correct output
`101056127` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 11

Group: 3

Verdict: RUNTIME ERROR

input
`50000 20000 37035 37042 37046 37052 ...` view save

correct output
`129968` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 12

Group: 3

Verdict: RUNTIME ERROR

input
`99999 48000 15929 43928 65765 86730 ...` view save

correct output
`375524431` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 13

Group: 3

Verdict: RUNTIME ERROR

input
`100000 1000 536 9214 34619 53734 ...` view save

correct output
`75975` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 14

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 4 5851 5854 5856 5859 ...` view save

correct output
`2664` view save

user output
`2664` view save

Test 15

Group: 2, 3

Verdict: RUNTIME ERROR

input
`100 45 3712 13742 17394 19428 ...` view save

correct output
`140256` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 16

Group: 3

Verdict: RUNTIME ERROR

input
`20000 400 3174 3175 3176 3179 ...` view save

correct output
`803105` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 17

Group: 3

Verdict: RUNTIME ERROR

input
`100000 49000 3605 14510 18001 20881 ...` view save

correct output
`162316123` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 18

Group: 2, 3

Verdict: RUNTIME ERROR

input
`100 50 0 1000000 1000002 1000005 ...` view save

correct output
`1002499` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 19

Group: 2, 3

Verdict: RUNTIME ERROR

input
`1000 500 0 1000000 1000002 1000005 ...` view save

correct output
`1249999` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

Test 20

Group: 3

Verdict: RUNTIME ERROR

input
`100000 49494 123 65659 98427 114811 ...` view save

correct output
`250954854` view save

user output
(empty)

Error:

code: input/code.cpp:39: int main(): Assertion `n<=20' failed.

APIO 2007

Backup

Compiler report

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Tasks

Submissions (henrikaalto)