CSES - Datatähti Open 2021

CSES - Datatähti Open 2021 - Results

Submission details
Task:	Split in Three
Sender:	taulant
Submission time:	2021-01-31 15:19:32 +0200
Language:	C++ (C++11)
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	22
#2	ACCEPTED	78

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 2	details
#2	ACCEPTED	0.01 s	1, 2	details
#3	ACCEPTED	0.01 s	1, 2	details
#4	ACCEPTED	0.01 s	1, 2	details
#5	ACCEPTED	0.01 s	1, 2	details
#6	ACCEPTED	0.01 s	1, 2	details
#7	ACCEPTED	0.01 s	1, 2	details
#8	ACCEPTED	0.01 s	1, 2	details
#9	ACCEPTED	0.01 s	2	details
#10	ACCEPTED	0.01 s	2	details
#11	ACCEPTED	0.01 s	2	details
#12	ACCEPTED	0.01 s	2	details
#13	ACCEPTED	0.01 s	2	details
#14	ACCEPTED	0.01 s	2	details
#15	ACCEPTED	0.01 s	2	details

Code

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
 
int32_t main(){
 ios::sync_with_stdio(0); cin.tie(0);
 int n; cin >> n;
 vector<int> v(n+1);
 int s = (n+1)*n/2;
 if(s % 3) cout << "IMPOSSIBLE" << endl;
 else {
  int a, b, c;
  b = s/3;
  a = b-1;
  c = b+1;
  for(int i=n; i && a; --i){
   if(!v[i] && i<=a) v[i] = 1, a-=i;
  }
  for(int i=n; i && b; --i){
   if(!v[i] && i<=b) v[i] = 2, b-=i;
  }
  for(int i=n; i && c; --i){
   if(!v[i] && i<=c) v[i] = 3, c-=i;
  }
  for(int i=1; i<=n; ++i) cout << v[i] << " ";
  cout << endl;
 }
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
`3` view save

correct output
`1 2 3` view save

user output
`1 2 3` view save

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
`4` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
`5` view save

correct output
`1 3 1 3 2` view save

user output
`3 3 3 1 2` view save

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
`6` view save

correct output
`1 3 2 2 1 3` view save

user output
`3 2 3 3 2 1` view save

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
`7` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
`8` view save

correct output
`2 3 1 2 3 3 2 1` view save

user output
`3 3 1 3 2 3 2 1` view save

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
`9` view save

correct output
`1 2 3 1 2 3 3 2 1` view save

user output
`3 3 3 3 1 3 2 2 1` view save

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
`10` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 9

Group: 2

Verdict: ACCEPTED

input
`42` view save

correct output
`1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...` view save

user output
`3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...` view save

Test 10

Group: 2

Verdict: ACCEPTED

input
`95` view save

correct output
`1 3 1 3 2 1 2 3 3 2 1 1 2 3 3 ...` view save

user output
`3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...` Truncated

Test 11

Group: 2

Verdict: ACCEPTED

input
`96` view save

correct output
`1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...` view save

user output
`3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...` Truncated

Test 12

Group: 2

Verdict: ACCEPTED

input
`97` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 13

Group: 2

Verdict: ACCEPTED

input
`98` view save

correct output
`2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ...` view save

user output
`3 3 3 3 1 3 3 3 3 3 3 3 3 3 3 ...` Truncated

Test 14

Group: 2

Verdict: ACCEPTED

input
`99` view save

correct output
`1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ...` view save

user output
`3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...` Truncated

Test 15

Group: 2

Verdict: ACCEPTED

input
`100` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Datatähti Open 2021

Split in Three

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

Tasks

Submissions (taulant)