CSES - Datatähti Open 2021

CSES - Datatähti Open 2021 - Results

Submission details
Task:	Split in Three
Sender:	lolok123
Submission time:	2021-01-31 10:07:06 +0200
Language:	C++ (C++17)
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

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:55:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0; j<fin[i].size(); ++j){
                ~^~~~~~~~~~~~~~

Code

#define MOD 1000000007
#include <bits/stdc++.h>
#include <numeric>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
 
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
 
	int n;
	array<pair<long long int,int>,3> s;
	fill(s.begin(),s.end(),make_pair(0,0));
	array<int,6> arr={2,1,0,0,1,2};
	array<vector<int>,3> fin;
	cin>>n;
	vector<int> ans(n);
	if((n+1)%3==0){
		if(n%2==0){
			fin[0].push_back(0);
			fin[1].push_back(1);
			for(int i=2; i<n; ++i){
				fin[arr[(i-2)%6]].push_back(i);
			}
		}
		else{
			fin[0].push_back(0);
			fin[0].push_back(1);
			for(int i=2; i<n; ++i){
				fin[arr[(i-2)%6]].push_back(n-i+1);
			}
		}
	}
	else if(n%3==0){
		if(n%2==0){
			fin[1].push_back(0);
			for(int i=1; i<n; ++i){
				fin[arr[i%6]].push_back(i);
			}
		}
		else{
			for(int i=0; i<n; ++i){
				fin[arr[i%6]].push_back(i);
			}
		}
	}
	else{
		cout<<"IMPOSSIBLE"<<endl;
		return 0;
	}
	for(int i=0; i<3; ++i){
		s[i].second=i;
		for(int j=0; j<fin[i].size(); ++j){
			s[i].first+=fin[i][j]+1;
		}
	}
	sort(s.begin(),s.end());
	for(int i=0; i<3; ++i){
		for(auto &j:fin[s[i].second]){
			ans[j]=i+1;
		}
	}
	for(int i=0; i<n; ++i){
		cout<<ans[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 3 2 2 3 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
`2 3 1 3 2 2 3 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
`1 2 3 3 2 1 1 2 3` 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 2 2 3 1 1 3 2 2 3 1 1 3 2 ...` 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 1 2 2 1 3 3 1 2 2 1 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 2 2 3 1 1 3 2 2 3 1 1 3 2 ...` 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
`2 3 1 3 2 2 3 1 1 3 2 2 3 1 1 ...` 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
`1 2 3 3 2 1 1 2 3 3 2 1 1 2 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

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

Tasks

Submissions (lolok123)