CSES - Putka Open 2025 – 1/5

Submission details
Task:	Järjestys
Sender:	Sisuaski
Submission time:	2025-09-08 21:58:05 +0300
Language:	C++ (C++17)
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	10
#2	ACCEPTED	10
#3	ACCEPTED	10
#4	ACCEPTED	40
#5	ACCEPTED	30

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 4, 5	details
#2	ACCEPTED	0.00 s	1, 4, 5	details
#3	ACCEPTED	0.00 s	1, 4, 5	details
#4	ACCEPTED	0.00 s	1, 4, 5	details
#5	ACCEPTED	0.00 s	1, 4, 5	details
#6	ACCEPTED	0.00 s	1, 2, 4, 5	details
#7	ACCEPTED	0.00 s	1, 3, 4, 5	details
#8	ACCEPTED	0.00 s	1, 4, 5	details
#9	ACCEPTED	0.02 s	2, 4, 5	details
#10	ACCEPTED	0.03 s	3, 4, 5	details
#11	ACCEPTED	0.01 s	4, 5	details
#12	ACCEPTED	0.01 s	4, 5	details
#13	ACCEPTED	0.01 s	4, 5	details
#14	ACCEPTED	0.02 s	4, 5	details
#15	ACCEPTED	0.07 s	2, 5	details
#16	ACCEPTED	0.56 s	3, 5	details
#17	ACCEPTED	0.04 s	5	details
#18	ACCEPTED	0.03 s	5	details
#19	ACCEPTED	0.05 s	5	details
#20	ACCEPTED	0.25 s	5	details
#21	ACCEPTED	0.26 s	5	details
#22	ACCEPTED	0.42 s	5	details

Code

#include <iostream>
#include <algorithm>
#include <cstring>
#include <vector>
using namespace std;
pair<int,int> ps[1024];
int ns[2048];
int ds[2048];
vector<pair<int,bool>> es[2048];
vector<pair<int,int>> res;
void dfs(int n) {
	while(!es[n].empty()) {
		auto [t,x] = es[n].back();
		es[n].pop_back();
		dfs(t);
		if (x) res.emplace_back(n,t);
	}
}
int main() {
	int t;cin>>t;
	while(t--){
		int n;cin>>n;
		for(int i=0; i<n; ++i) {
			int x,y;cin>>x>>y;
			ps[i]={x,y};
			ns[2*i]=x;
			ns[2*i+1]=y;
		}
		ns[2*n]=0;
		ns[2*n+1]=1.1e9;
		sort(ns,ns+2*n+2);
		int k = unique(ns,ns+2*n+2)-ns;
		memset(ds,0,sizeof(ds));
		for(int i=0; i<k; ++i) es[i].clear();
		for(int i=0; i<n; ++i) {
			int a = lower_bound(ns,ns+k,ps[i].first)-ns;
			int b = lower_bound(ns,ns+k,ps[i].second)-ns;
			es[a].emplace_back(b,1);
			ds[a]--;
			ds[b]++;
		}
		ds[0]++;
		int d=0;
		for(int i=0; i+1<k; ++i) {
			d += ds[i];
			if (d<0) goto fail;
			for(int j=0; j<d; ++j) es[i].emplace_back(i+1,0);
		}
		res.clear();
		dfs(0);
		if ((int)res.size()!=n) goto fail;
		reverse(res.begin(),res.end());
		cout<<"YES\n";
		for(auto [x,y]: res) cout<<ns[x]<<' '<<ns[y]<<'\n';
		continue;
fail:
		cout<<"NO\n";
	}
}

Test details

Test 1

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 1 74 75 1 100 43 ...` view save

correct output
`YES 74 75 YES 100 43 YES ...` view save

user output
`YES 74 75 YES 100 43 YES ...` Truncated

Test 2

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 2 80 54 51 61 2 ...` view save

correct output
`YES 51 61 80 54 YES 2 64 ...` view save

user output
`YES 51 61 80 54 YES 2 64 ...` Truncated

Test 3

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 3 3 74 91 45 100 24 ...` view save

correct output
`YES 3 74 100 24 91 45 YES ...` view save

user output
`YES 3 74 100 24 91 45 YES ...` Truncated

Test 4

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 4 88 50 62 41 12 86 ...` view save

correct output
`YES 12 86 88 50 62 41 66 93 ...` view save

user output
`YES 12 86 88 50 62 41 66 93 ...` Truncated

Test 5

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 5 82 80 80 92 5 22 ...` view save

correct output
`YES 5 22 94 13 82 80 80 92 ...` view save

user output
`YES 5 22 94 13 82 80 80 92 ...` Truncated

Test 6

Group: 1, 2, 4, 5

Verdict: ACCEPTED

input
`100 5 34 38 26 30 1 6 ...` view save

correct output
`YES 1 6 12 22 26 30 34 38 ...` view save

user output
`YES 1 6 12 22 26 30 34 38 ...` Truncated

Test 7

Group: 1, 3, 4, 5

Verdict: ACCEPTED

input
`100 5 50 40 28 25 51 7 ...` view save

correct output
`YES 51 7 50 40 47 1 17 11 ...` view save

user output
`YES 51 7 50 40 47 1 17 11 ...` Truncated

Test 8

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 5 2 2 2 1 1 1 ...` view save

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

user output
`YES 2 1 2 1 1 1 1 2 ...` Truncated

Test 9

Group: 2, 4, 5

Verdict: ACCEPTED

input
`100 100 175870020 296379324 248160539 883842002 21934885 781732852 ...` view save

correct output
`NO YES 4976156 6890135 10553287 11923223 14617057 17728163 ...` view save

user output
`NO YES 4976156 6890135 10553287 11923223 14617057 17728163 ...` Truncated

Test 10

Group: 3, 4, 5

Verdict: ACCEPTED

input
`100 100 447597377 314433951 700232436 691277009 937268439 708165426 ...` view save

correct output
`YES 998963839 391778929 995772196 257222033 995754704 553123757 994629465 247775824 ...` view save

user output
`YES 998963839 391778929 995772196 257222033 995754704 553123757 994629465 247775824 ...` Truncated

Test 11

Group: 4, 5

Verdict: ACCEPTED

input
`100 100 1 1 1 2 2 1 ...` view save

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

user output
`YES 2 1 2 2 2 2 2 1 ...` Truncated

Test 12

Group: 4, 5

Verdict: ACCEPTED

input
`100 100 7 1 6 3 10 9 ...` view save

correct output
`YES 6 7 7 8 9 10 10 10 ...` view save

user output
`YES 10 10 10 2 10 6 10 1 ...` Truncated

Test 13

Group: 4, 5

Verdict: ACCEPTED

input
`100 100 51 5 85 77 91 84 ...` view save

correct output
`YES 100 24 100 25 100 3 100 6 ...` view save

user output
`YES 100 24 100 25 100 3 100 6 ...` Truncated

Test 14

Group: 4, 5

Verdict: ACCEPTED

input
`100 100 823828194 863717310 593641073 340054211 420481158 965069109 ...` view save

correct output
`YES 999289319 634855378 996775156 433726648 983657502 55234695 981890636 112877413 ...` view save

user output
`YES 999289319 634855378 996775156 433726648 983657502 55234695 981890636 112877413 ...` Truncated

Test 15

Group: 2, 5

Verdict: ACCEPTED

input
`100 500 88724450 89315226 266915464 267648621 189301651 189661541 ...` view save

correct output
`YES 764920 1459946 1936195 2832987 3691481 4085931 4991808 5840928 ...` view save

user output
`YES 764920 1459946 1936195 2832987 3691481 4085931 4991808 5840928 ...` Truncated

Test 16

Group: 3, 5

Verdict: ACCEPTED

input
`100 500 763682761 317584504 756010800 260162861 435911339 78070399 ...` view save

correct output
`YES 998768285 3307355 998714926 628486754 997115613 820932481 993320616 554600893 ...` view save

user output
`YES 998768285 3307355 998714926 628486754 997115613 820932481 993320616 554600893 ...` Truncated

Test 17

Group: 5

Verdict: ACCEPTED

input
`100 500 2 2 2 1 1 2 ...` view save

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

user output
`YES 2 2 2 1 2 1 2 1 ...` Truncated

Test 18

Group: 5

Verdict: ACCEPTED

input
`100 500 10 6 10 10 9 10 ...` view save

correct output
`YES 2 3 3 4 4 5 5 6 ...` view save

user output
`YES 10 5 10 1 10 5 10 3 ...` Truncated

Test 19

Group: 5

Verdict: ACCEPTED

input
`100 500 85 87 89 70 70 92 ...` view save

correct output
`YES 96 97 100 67 100 10 100 97 ...` view save

user output
`YES 100 67 100 10 100 97 100 73 ...` Truncated

Test 20

Group: 5

Verdict: ACCEPTED

input
`100 500 861154169 119512584 569086662 606567153 288230434 322196278 ...` view save

correct output
`YES 999945324 969534372 999738857 240617694 999244114 722161553 999207839 557351400 ...` view save

user output
`YES 999945324 969534372 999738857 240617694 999244114 722161553 999207839 557351400 ...` Truncated

Test 21

Group: 5

Verdict: ACCEPTED

input
`100 500 116439250 401518028 280329609 193466222 674040956 209050570 ...` view save

correct output
`NO YES 773701149 773852119 987509190 315670966 977413249 510418200 ...` view save

user output
`NO YES 987509190 315670966 977413249 510418200 976306270 854884818 ...` Truncated

Test 22

Group: 5

Verdict: ACCEPTED

input
`100 500 934181189 942499518 684836806 395802802 957884803 570946201 ...` view save

correct output
`YES 999772640 505132174 999111650 140844643 999028633 888134186 999020109 291046771 ...` view save

user output
`YES 999772640 505132174 999111650 140844643 999028633 888134186 999020109 291046771 ...` Truncated

Putka Open 2025 – 1/5

Järjestys

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

Test 21

Test 22

Tasks

Submissions (Sisuaski)