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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#752936#9556. The Hanged Manucup-team4938#AC ✓86ms39360kbC++142.4kb2024-11-16 10:30:562024-11-16 10:31:00

Judging History

你现在查看的是最新测评结果

  • [2024-11-16 10:31:00]
  • 评测
  • 测评结果：AC
  • 用时：86ms
  • 内存：39360kb
查看
  • [2024-11-16 10:30:56]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
int n, k, hd[300010], e[600010][2], a[300010][2], c[300010][2], ans[300010][2];
bool f[300010][2];
void dfs1(int u, int fa){
	a[u][0] = a[u][1] = 0;
	int i, v, x = 0, y = 0;
	for(i = hd[u]; i > 0; i = e[i][0]){
		v = e[i][1];
		if(v != fa){
			dfs1(v, u);
			if(f[v][1]) y++, a[u][1] = v;
			else x++, a[u][0] = v;
		}
	}
	c[u][0] = x; c[u][1] = y;
	if(y > 0) f[u][0] = f[u][1] = 1;
	else if(x & 1) f[u][0] = 0, f[u][1] = 1;
	else f[u][0] = 1, f[u][1] = 0;
//	printf("%d %d %d %d %d %d %d %d\n", u, fa, f[u][0], f[u][1], c[u][0], c[u][1], a[u][0], a[u][1]);
}
void add(int x,int y){ans[++k][0]=x;ans[k][1]=y;}
void dfs2(int u, int fa, int p){
	int i, v, w;
	if(p == 0){
		if(c[u][0] & 1){
			dfs2(a[u][0], u, 0);
			dfs2(a[u][1], u, a[u][0]);
			w = 0;
			for(i = hd[u]; i > 0; i = e[i][0]){
				v = e[i][1];
				if(v != fa && v != a[u][0] && v != a[u][1]){
					if(f[v][1]){
						dfs2(v, u, u);
					}else{
						if(w > 0){ add(w, v); w = 0; }
						else w = v;
						dfs2(v, u, 0);
					}
				}
			}
		}else{
			w = 0;
			for(i = hd[u]; i > 0; i = e[i][0]){
				v = e[i][1];
				if(v != fa){
					if(f[v][1]){
						dfs2(v, u, u);
					}else{
						if(w > 0){ add(w, v); w = 0; }
						else w = v;
						dfs2(v, u, 0);
					}
				}
			}
		}
	}else{
		if(c[u][0] & 1){
			add(p, a[u][0]);
			dfs2(a[u][0], u, 0);
			w = 0;
			for(i = hd[u]; i > 0; i = e[i][0]){
				v = e[i][1];
				if(v != fa && v != a[u][0]){
					if(f[v][1]){
						dfs2(v, u, u);
					}else{
						if(w > 0){ add(w, v); w = 0; }
						else w = v;
						dfs2(v, u, 0);
					}
				}
			}
		}else{
			w = 0;
			for(i = hd[u]; i > 0; i = e[i][0]){
				v = e[i][1];
				if(v != fa){
					if(v == a[u][1]){
						dfs2(v, u, p);
					}else if(f[v][1]){
						dfs2(v, u, u);
					}else{
						if(w > 0){ add(w, v); w = 0; }
						else w = v;
						dfs2(v, u, 0);
					}
				}
			}
		}
	}
}
void solve(){
	k = 0;
	int i, u, v;
	scanf("%d", &n);
	for(i = 1; i <= n; i++){
		hd[i] = 0;
	}
	for(i = 1; i >> 1 < n - 1; i++){
		scanf("%d%d", &u, &v);
		e[i][0] = hd[u]; e[i][1] = v; hd[u] = i;
		i++;
		e[i][0] = hd[v]; e[i][1] = u; hd[v] = i;
	}
	dfs1(1, 0);
	if(!f[1][0]){ printf("-1\n"); return; }
	dfs2(1, 0, 0);
	printf("%d\n", k);
	for(i = 1; i <= k; i++) printf("%d %d\n", ans[i][0], ans[i][1]);
}
int main()
{
	int t;
	scanf("%d", &t);
	while(t--) solve();
	return 0;
}
Source code, Language: C++14

这程序好像有点Bug，我给组数据试试？

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 9980kb

input:

3
4
1 2
2 3
2 4
7
1 2
1 3
1 4
4 5
4 6
4 7
6
1 2
2 3
2 4
1 5
5 6

output:

-1
3
1 5
7 6
3 2
2
4 3
2 6

result:

ok Good Job! (3 test cases)

Test #2:

score: 0
Accepted
time: 0ms
memory: 12016kb

input:

3
6
1 2
1 3
1 4
4 5
4 6
2
1 2
2
2 1

output:

-1
-1
-1

result:

ok Good Job! (3 test cases)

Test #3:

score: 0
Accepted
time: 32ms
memory: 12148kb

input:

100000
3
1 3
2 1
3
2 3
1 2
3
2 3
1 3
3
2 1
1 3
3
1 2
2 3
3
1 3
2 3
3
2 1
1 3
3
2 3
1 2
3
2 3
1 3
3
2 1
1 3
3
2 3
1 2
3
1 3
2 3
3
1 3
2 1
3
2 3
1 2
3
2 3
1 3
3
1 3
2 1
3
1 2
2 3
3
1 3
2 3
3
2 1
1 3
3
1 2
2 3
3
1 3
2 3
3
1 3
2 1
3
2 3
1 2
3
1 3
2 3
3
1 3
2 1
3
2 3
1 2
3
1 3
2 3
3
2 1
1 3
3
2 3
1 2
3
2...

output:

1
2 3
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
2 3
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
3 2
1
1 3
1
1 2
1
2 3
1
1 3
...

result:

ok Good Job! (100000 test cases)

Test #4:

score: 0
Accepted
time: 28ms
memory: 14132kb

input:

75000
4
3 1
2 1
1 4
4
3 1
2 4
1 2
4
2 1
1 3
3 4
4
1 4
2 1
3 4
4
2 1
3 2
1 4
4
3 2
2 4
1 2
4
2 3
3 4
1 2
4
3 4
2 4
1 2
4
3 1
1 4
2 3
4
3 2
1 3
2 4
4
2 3
1 3
3 4
4
1 3
3 4
2 4
4
3 1
1 4
2 4
4
3 2
2 4
1 4
4
2 3
3 4
1 4
4
3 4
2 4
1 4
4
1 4
2 1
3 1
4
2 4
3 1
1 2
4
2 1
3 4
1 3
4
2 1
1 4
3 4
4
1 4
2 1
3 2
...

output:

-1
1
3 4
1
2 4
1
2 3
1
4 3
-1
1
1 4
1
1 3
1
4 2
1
1 4
-1
1
1 2
1
3 2
1
1 3
1
1 2
-1
-1
1
3 4
1
2 4
1
2 3
1
4 3
-1
1
1 4
1
1 3
1
4 2
1
1 4
-1
1
1 2
1
3 2
1
1 3
1
1 2
-1
-1
1
3 4
1
2 4
1
2 3
1
4 3
-1
1
1 4
1
1 3
1
4 2
1
1 4
-1
1
1 2
1
3 2
1
1 3
1
1 2
-1
-1
1
3 4
1
2 4
1
2 3
1
4 3
-1
1
1 4
1
1 3
1
4 2
...

result:

ok Good Job! (75000 test cases)

Test #5:

score: 0
Accepted
time: 35ms
memory: 14060kb

input:

60000
5
2 1
3 1
4 1
1 5
5
1 2
4 1
2 5
3 1
5
1 3
3 5
4 1
2 1
5
2 1
4 5
1 4
3 1
5
3 1
1 5
2 1
4 5
5
3 1
4 2
1 5
2 1
5
1 2
3 1
2 5
4 2
5
4 1
1 2
3 5
2 3
5
3 1
2 4
4 5
1 2
5
4 5
3 1
2 5
1 2
5
1 5
2 1
3 1
4 3
5
1 3
4 1
2 5
3 2
5
4 3
2 1
1 3
3 5
5
3 4
1 3
4 5
2 1
5
2 1
1 3
4 5
3 5
5
3 4
4 1
1 5
2 1
5
3 1
...

output:

2
5 4
3 2
2
3 4
1 5
2
2 4
1 5
2
1 5
3 2
2
1 4
2 3
2
1 4
5 3
2
3 2
4 5
1
4 5
1
3 5
1
3 4
2
1 4
2 5
1
4 5
2
5 4
3 2
1
2 5
1
2 4
2
2 5
1 3
1
3 5
1
2 5
2
2 4
3 5
1
2 3
2
4 2
1 3
1
3 4
1
2 4
1
2 3
2
3 4
5 2
2
1 3
4 5
2
4 2
5 3
2
1 4
1 5
2
1 3
1 5
2
1 4
1 3
2
4 3
2 5
2
1 5
3 4
2
1 4
2 5
2
1 3
2 5
2
1 3
2 ...

result:

ok Good Job! (60000 test cases)

Test #6:

score: 0
Accepted
time: 34ms
memory: 14048kb

input:

50000
6
1 6
5 1
4 1
2 1
3 1
6
5 1
3 1
1 2
2 6
4 1
6
4 1
5 1
1 3
2 1
3 6
6
4 6
2 1
5 1
3 1
1 4
6
5 6
1 5
4 1
3 1
2 1
6
4 1
5 6
2 1
1 6
3 1
6
1 6
3 1
2 1
5 2
4 1
6
3 1
5 2
1 2
2 6
4 1
6
4 1
2 3
5 1
1 2
3 6
6
4 6
1 2
3 1
2 4
5 1
6
1 2
5 6
2 5
3 1
4 1
6
1 2
2 6
4 1
3 1
5 6
6
5 3
3 1
1 6
2 1
4 1
6
5 1
3 ...

output:

-1
2
5 6
4 3
2
4 6
2 5
2
2 6
3 5
2
4 6
2 3
2
4 5
3 2
2
6 5
4 3
-1
2
1 6
5 4
2
5 3
1 6
2
4 3
1 6
2
3 4
1 5
2
6 5
4 2
2
1 6
4 5
-1
2
5 2
1 6
2
4 2
1 6
2
1 5
2 4
2
3 5
2 6
2
1 6
5 3
2
5 2
1 6
-1
2
1 6
3 2
2
3 2
1 5
2
3 4
6 2
2
1 6
4 3
2
1 6
2 4
2
1 6
3 2
-1
2
1 4
2 3
2
3 4
2 5
2
3 4
1 5
2
4 2
1 5
2
2 3...

result:

ok Good Job! (50000 test cases)

Test #7:

score: 0
Accepted
time: 31ms
memory: 10056kb

input:

42857
7
3 1
2 1
5 1
6 1
4 1
1 7
7
4 1
1 2
6 1
3 1
2 7
5 1
7
3 7
2 1
1 3
4 1
6 1
5 1
7
4 7
1 4
6 1
5 1
2 1
3 1
7
4 1
1 5
6 1
3 1
5 7
2 1
7
6 7
5 1
2 1
4 1
1 6
3 1
7
6 7
2 1
1 7
3 1
5 1
4 1
7
4 1
5 1
6 2
3 1
2 1
1 7
7
1 2
4 1
6 2
3 1
2 7
5 1
7
6 1
2 3
4 1
5 1
1 2
3 7
7
6 1
4 7
3 1
1 2
5 1
2 4
7
1 2
3 ...

output:

3
7 4
6 5
2 3
3
5 3
1 7
6 4
3
5 6
1 7
4 2
3
3 2
5 6
1 7
3
2 3
1 7
6 4
3
1 7
3 4
2 5
3
4 5
1 6
3 2
3
1 6
7 3
5 4
3
5 3
4 2
7 6
2
6 7
5 4
2
6 7
5 3
2
3 7
4 6
2
3 7
4 5
2
4 6
3 5
3
1 6
2 5
4 7
2
6 7
5 4
3
5 3
6 7
4 2
2
2 7
6 5
2
6 7
4 2
2
5 7
2 4
2
5 6
4 2
3
7 5
1 6
3 2
2
3 7
6 5
2
6 7
5 2
3
3 2
5 4
6 ...

result:

ok Good Job! (42857 test cases)

Test #8:

score: 0
Accepted
time: 35ms
memory: 12092kb

input:

37500
8
5 1
1 8
7 1
4 1
6 1
2 1
3 1
8
3 1
2 8
4 1
6 1
1 2
7 1
5 1
8
3 8
4 1
2 1
1 3
6 1
5 1
7 1
8
1 4
5 1
7 1
6 1
4 8
2 1
3 1
8
1 5
5 8
4 1
2 1
3 1
7 1
6 1
8
1 6
3 1
4 1
2 1
5 1
6 8
7 1
8
1 7
6 1
4 1
3 1
5 1
7 8
2 1
8
5 1
4 1
2 1
1 8
6 1
7 8
3 1
8
1 8
4 1
2 1
5 1
7 2
3 1
6 1
8
6 1
5 1
7 2
4 1
2 8
3 ...

output:

-1
3
3 8
5 7
6 4
3
4 8
7 5
6 2
3
5 8
3 2
6 7
3
4 8
6 7
3 2
3
3 8
7 5
2 4
3
6 8
2 5
3 4
3
5 7
3 6
2 4
3
8 7
6 3
5 4
-1
3
4 7
1 8
6 5
3
1 8
6 3
7 5
3
1 8
7 4
3 6
3
3 5
1 8
7 4
3
1 8
6 3
5 4
3
3 6
5 4
1 7
3
2 7
4 8
6 5
3
7 5
1 8
4 6
-1
3
7 6
1 8
2 5
3
2 6
1 8
4 7
3
2 7
5 4
1 8
3
2 5
1 8
6 4
3
6 4
2 5
1...

result:

ok Good Job! (37500 test cases)

Test #9:

score: 0
Accepted
time: 24ms
memory: 12020kb

input:

300
1000
815 567
883 63
783 506
485 779
142 248
218 214
617 238
481 567
20 203
119 212
953 179
44 830
427 156
97 916
763 172
484 512
916 21
417 958
408 257
238 634
891 213
90 208
394 56
758 819
435 26
636 718
880 212
458 662
123 212
239 156
548 314
852 436
722 828
271 429
493 27
910 421
354 143
956 ...

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
...

result:

ok Good Job! (300 test cases)

Test #10:

score: 0
Accepted
time: 37ms
memory: 12576kb

input:

3
100000
21854 12448
41900 78683
26279 40303
96957 78925
50096 72644
14704 14585
44195 23551
3290 42026
25017 64658
4593 10713
29129 13530
62892 43675
23793 13329
97502 10091
78766 44620
59301 95815
25781 93162
12231 24059
77637 66545
53889 84545
65596 58277
31337 87701
29049 43837
99301 2408
41562 ...

output:

-1
-1
-1

result:

ok Good Job! (3 test cases)

Test #11:

score: 0
Accepted
time: 47ms
memory: 16440kb

input:

1
300000
264872 86229
63995 164384
180167 260692
169708 168083
149321 50390
177160 60629
178607 170744
176734 60911
231963 17936
49668 90468
205798 261858
7645 12727
240590 1798
8446 139678
32309 208096
226620 119112
204528 63548
110330 250899
219366 144880
258130 23221
203423 40874
45194 78650
1571...

output:

-1

result:

ok Good Job! (1 test case)

Test #12:

score: 0
Accepted
time: 38ms
memory: 14048kb

input:

30000
10
1 6
4 8
7 5
6 10
3 1
8 2
2 9
9 10
5 9
10
3 7
2 6
6 9
1 6
4 10
9 10
5 6
7 2
8 3
10
8 10
6 3
2 1
3 2
1 10
7 4
5 2
9 8
4 9
10
4 1
6 8
2 10
9 10
7 2
5 2
8 7
1 6
3 1
10
6 2
3 6
9 6
7 10
8 2
2 1
5 3
1 4
4 10
10
2 8
3 6
5 7
7 8
1 6
8 10
9 2
4 6
6 10
10
1 5
4 3
6 4
7 1
2 3
5 9
8 2
3 10
9 6
10
2 7
5...

output:

2
9 7
3 4
3
1 5
6 4
6 8
3
1 7
1 5
2 6
3
1 5
2 9
3 4
4
1 7
1 8
2 9
6 5
3
8 5
1 9
4 3
2
7 10
3 8
3
9 3
1 5
1 2
4
1 4
3 2
5 9
1 10
3
1 7
6 4
3 2
3
5 9
3 8
1 10
3
1 6
1 5
8 4
3
8 10
2 4
3 5
4
1 7
10 4
9 8
9 5
3
5 6
2 9
3 8
4
1 7
5 9
8 6
10 3
3
1 9
8 5
3 7
3
7 3
4 5
1 2
3
4 10
9 6
3 7
3
10 6
1 2
9 8
3
9 ...

result:

ok Good Job! (30000 test cases)

Test #13:

score: 0
Accepted
time: 41ms
memory: 10064kb

input:

3000
99
79 72
72 6
1 90
94 89
31 28
59 89
78 85
73 35
57 45
45 99
38 57
11 70
26 14
92 13
35 52
30 18
61 15
29 86
60 22
5 57
17 84
36 84
70 37
10 86
80 91
34 87
65 8
42 88
87 25
88 43
8 47
33 78
62 47
15 73
83 77
24 33
97 38
23 77
20 34
85 32
55 22
63 10
66 30
39 5
28 62
89 15
37 49
16 75
74 66
47 4...

output:

32
88 53
43 56
45 67
57 76
58 26
14 22
55 60
27 16
4 97
47 77
23 83
82 69
78 11
85 24
33 41
47 7
86 63
9 50
52 51
30 40
36 17
84 74
86 81
59 94
89 61
47 48
44 65
93 3
8 19
54 79
54 80
1 95
35
62 26
71 34
33 2
65 70
79 37
18 39
17 53
66 22
97 57
42 87
96 27
6 91
18 12
74 14
61 30
41 80
56 10
77 81
44...

result:

ok Good Job! (3000 test cases)

Test #14:

score: 0
Accepted
time: 60ms
memory: 12928kb

input:

3
100000
83890 7467
75295 89651
4062 83955
60269 26734
58357 54437
22200 48174
87338 74094
86583 7977
1136 84701
34461 47665
82355 28324
32412 16170
5270 73823
37181 86410
22445 59139
27816 47294
540 79932
73768 41579
14577 92388
31765 75494
49018 24756
57215 90140
86438 22430
3974 15829
59053 22856...

output:

33627
1 74521
28891 75045
56062 7652
97416 11731
834 43963
63342 90432
55843 33144
45401 28550
3694 49746
1742 93161
50919 75163
57922 44282
66752 27244
66530 33294
66530 5486
76580 58926
76580 9654
26021 31692
39887 39379
98194 86374
34167 24639
23387 91734
45166 88497
69349 59578
15279 80223
82259...

result:

ok Good Job! (3 test cases)

Test #15:

score: 0
Accepted
time: 67ms
memory: 17444kb

input:

1
300000
30683 45175
202516 82288
209967 151196
160370 148366
36159 83057
277846 18399
58641 259342
220025 290125
299864 69137
276256 59853
163412 98854
211643 219357
45085 203080
17046 259484
175009 201826
220413 253746
280406 235850
107084 114346
6196 164024
149354 242637
8884 201047
102007 121900...

output:

100708
1 178221
40395 244586
90053 174409
90053 141876
7234 52781
155066 104057
24604 52177
71270 221430
219049 144485
174876 52060
73436 60414
186930 210009
80300 227785
46516 246666
186930 54154
186930 61661
57825 65131
219049 168377
93781 180113
235846 158376
113901 55852
6691 155823
6691 36453
6...

result:

ok Good Job! (1 test case)

Test #16:

score: 0
Accepted
time: 86ms
memory: 39360kb

input:

1
300000
98923 244101
265083 199522
178854 130825
233559 275176
51110 162632
100454 144508
203138 94733
112144 116959
221684 184011
122356 174675
240265 56410
83529 213874
174757 59833
87918 98194
231431 71105
145121 105056
205429 60598
114418 168280
249115 124674
160102 183789
27460 854
72909 12628...

output:

2
1 253307
1 250509

result:

ok Good Job! (1 test case)

Test #17:

score: 0
Accepted
time: 70ms
memory: 17444kb

input:

1
300000
51552 258960
174014 1763
298103 122466
80039 102474
90881 123355
37816 182571
209856 199049
68745 246931
231305 147333
256217 77569
277988 49579
174054 154053
74959 60605
281490 278569
131850 7894
138112 208044
207380 67110
1334 204240
117581 152706
90835 142455
54402 68306
264004 244539
99...

output:

100828
1 166674
157546 243025
153856 83772
266297 200764
284066 275851
226924 183022
201842 255544
100327 17897
272556 251483
45382 98489
242573 288022
38511 57777
199330 227039
271045 224323
126946 29500
199330 34563
226924 253254
52360 9529
52360 279989
253506 45645
130713 18960
92253 25121
294710...

result:

ok Good Job! (1 test case)

Test #18:

score: 0
Accepted
time: 61ms
memory: 16592kb

input:

3
100000
43104 39350
58310 72159
1910 78304
366 33335
3494 5822
948 92660
11882 15212
69203 4346
45739 21275
65867 55409
61694 88089
71479 40349
35887 88786
52148 61962
82180 65178
93823 47701
43116 75915
86963 34539
50583 74229
40562 91601
12139 88394
52559 57679
25481 60170
31207 85832
4201 92027
...

output:

33708
38435 28314
14270 75148
38584 45720
56678 9570
3471 87970
12722 98583
89731 79157
10716 63071
98309 73133
80789 44096
909 85536
29150 83286
81229 5227
38296 13038
46740 14102
23367 39634
9920 21731
21808 92832
23659 85477
71152 25704
75192 54626
46966 37537
89632 99634
48971 62283
92423 87627
...

result:

ok Good Job! (3 test cases)

Test #19:

score: 0
Accepted
time: 77ms
memory: 37192kb

input:

1
299999
153306 123584
100430 137396
151712 125355
180598 178628
178522 156317
6811 124889
41530 107031
35237 104587
235884 157908
130785 274651
141969 58315
203297 225663
192833 74643
223470 99863
272704 178999
163551 250862
133718 39962
199271 24737
159107 66084
139074 91207
229404 47856
273704 12...

output:

2
1 141316
1 211007

result:

ok Good Job! (1 test case)

Test #20:

score: 0
Accepted
time: 31ms
memory: 12104kb

input:

3000
100
9 37
30 16
87 75
66 20
89 79
78 72
48 5
62 100
61 95
69 93
23 86
18 48
32 24
91 43
54 93
92 63
15 7
6 92
67 35
65 89
8 26
21 98
1 65
40 85
36 41
77 39
56 44
69 70
46 67
80 60
94 96
14 36
34 99
84 62
22 74
23 79
46 19
27 51
11 14
18 70
85 8
73 6
97 40
71 83
41 98
61 87
2 90
45 5
20 44
17 81
...

output:

2
1 25
1 2
2
1 31
1 82
2
1 48
1 82
2
1 51
1 95
2
1 88
1 58
2
1 31
1 51
2
1 98
1 14
2
1 95
1 33
2
1 41
1 29
2
1 80
1 22
2
1 90
1 11
1
1 57
2
1 7
1 75
2
1 80
1 25
2
1 60
1 26
2
1 14
1 53
1
1 63
2
1 7
1 17
1
1 8
2
1 33
1 100
2
1 50
1 54
2
1 57
1 11
2
1 88
1 30
2
1 99
1 28
2
1 23
1 69
2
1 34
1 87
2
1 8
...

result:

ok Good Job! (3000 test cases)

Test #21:

score: 0
Accepted
time: 70ms
memory: 27788kb

input:

1
299999
123584 153306
137396 100430
114758 125355
180598 13155
156317 178522
124889 6811
41530 27377
104587 35237
157908 235884
130785 44576
141969 129416
225663 203297
120350 74643
20300 99863
295855 178999
198163 250862
133718 148059
24737 199271
66084 159107
91207 139074
229404 89529
273704 1565...

output:

149999
1 228138
59945 114107
137692 29030
76795 248407
165732 117381
103830 45275
26667 4926
199067 68292
157448 158652
255859 166484
288494 10371
131251 106189
55650 205204
152783 198208
209967 135278
242330 87187
279105 266508
242883 219345
118419 155147
157088 244119
284340 106969
50293 115529
23...

result:

ok Good Job! (1 test case)

Test #22:

score: 0
Accepted
time: 56ms
memory: 13444kb

input:

10
29999
29014 14470
26823 2725
13020 1832
9002 521
22160 26983
2964 2174
20830 22020
19201 4850
19060 10457
23936 2163
22700 29072
28735 4318
15942 8678
10533 9761
8946 29013
12121 555
14303 26560
18146 20485
16984 345
22717 347
21795 27399
20125 489
6200 24303
21419 17994
28274 28769
28326 25399
1...

output:

14999
1 28615
12529 2331
17011 12785
21747 3329
15293 24888
17950 3742
19411 6818
6679 20851
18506 23676
20006 153
3872 5133
25142 5121
22623 7047
20960 21863
4094 7521
26036 25667
19689 27528
526 19923
22102 10060
18864 29624
24911 19523
26146 8397
19289 29250
21871 6713
9368 25372
10779 21422
2071...

result:

ok Good Job! (10 test cases)

Test #23:

score: 0
Accepted
time: 60ms
memory: 17372kb

input:

1
299999
258553 127891
200368 10642
134395 33327
66807 64283
298570 239432
106569 74919
101275 256095
215172 160205
258907 145255
294970 120844
120747 17359
231598 191111
103394 179995
276483 13575
153143 236649
32255 165538
13973 180565
114480 173795
280161 260850
239991 6207
137809 102438
160694 2...

output:

149999
1 87104
158317 72558
144929 286021
5311 128333
176027 156341
92054 102767
245742 19533
192141 63344
6273 14505
54231 250383
48920 45434
176218 216594
35007 51715
203807 188815
150634 13985
215781 144871
45095 153730
157760 4823
83922 228580
205575 198120
296022 143740
277670 93045
173825 5866...

result:

ok Good Job! (1 test case)

Test #24:

score: 0
Accepted
time: 49ms
memory: 12352kb

input:

10
29999
21547 280
5396 29060
21129 24483
1948 5302
5994 20221
12679 20525
23088 2218
24614 17646
9854 7760
23220 29541
9824 25475
9144 8680
17400 22930
3583 13702
14210 16949
4145 4827
4927 15200
5195 13939
23998 23812
20779 22916
19383 23442
29184 11705
12676 19405
4120 11612
24747 1107
25087 1775...

output:

14999
1 13363
29154 16957
7319 13590
19869 11769
25116 21424
22264 25083
16874 2938
6685 25218
29344 25389
27192 21418
18677 25438
3529 4690
23121 23226
19948 22675
17137 6026
10371 18583
17159 26068
29805 26302
9719 18281
20307 3819
20635 8964
1837 11422
24339 15275
18492 24835
22358 6970
21247 195...

result:

ok Good Job! (10 test cases)

Test #25:

score: 0
Accepted
time: 40ms
memory: 9924kb

input:

27000
11
3 5
11 3
2 3
7 1
10 8
8 6
9 8
3 1
8 4
1 8
11
3 1
1 2
5 6
11 1
6 9
10 6
4 8
1 5
1 7
5 8
11
1 3
6 11
4 6
10 1
1 8
2 6
7 11
1 9
11 1
6 5
11
3 7
6 8
11 3
9 6
3 8
6 4
1 8
5 9
10 3
2 9
11
8 5
6 8
11 5
8 2
7 11
4 5
8 9
3 10
3 11
8 1
11
7 3
2 3
9 1
8 10
8 1
9 5
3 9
4 1
6 8
11 3
11
8 5
8 1
6 8
11 8
...

output:

5
4 9
6 10
1 5
2 11
8 7
5
1 6
10 9
5 4
7 11
2 3
5
1 7
11 4
5 2
9 8
10 3
5
1 6
4 9
2 5
8 7
10 11
5
1 6
9 2
8 4
5 7
11 10
5
4 8
6 10
1 5
9 7
11 2
5
1 5
2 4
9 10
3 7
11 6
5
1 8
2 3
9 11
6 10
4 5
5
1 9
4 2
8 11
7 6
3 10
5
1 4
2 7
6 5
11 3
9 10
5
1 6
11 4
9 10
3 7
2 8
5
6 5
1 2
9 7
11 8
10 4
5
1 8
4 11
2...

result:

ok Good Job! (27000 test cases)

Test #26:

score: 0
Accepted
time: 35ms
memory: 10044kb

input:

30000
6
5 3
6 2
4 1
1 3
2 1
4
4 2
1 4
1 3
11
9 1
10 11
11 3
11 9
4 6
3 7
2 11
1 6
1 5
8 9
17
6 15
10 7
8 17
13 11
3 8
15 4
16 3
12 4
15 10
2 6
6 9
5 13
5 14
2 1
10 5
8 15
14
14 5
1 6
12 4
8 14
5 9
13 5
4 9
1 13
7 13
5 3
11 14
5 10
2 13
12
3 6
5 1
8 3
12 2
12 7
5 4
9 4
11 10
6 12
12 5
4 11
17
15 11
1...

output:

2
4 5
1 6
1
3 2
4
5 8
9 7
2 10
1 4
7
1 9
15 17
8 16
15 7
10 14
5 11
6 12
5
2 7
6 14
11 8
10 3
5 12
4
5 8
7 2
1 9
4 10
6
1 7
8 3
12 4
10 11
13 2
14 9
6
1 10
11 2
8 12
9 7
8 5
4 3
-1
2
1 3
5 4
4
9 2
8 3
4 7
6 11
3
2 10
3 9
1 5
5
3 11
2 10
12 13
12 7
8 6
3
9 10
1 6
2 3
1
2 4
2
1 2
4 3
-1
1
1 3
1
2 3
4
...

result:

ok Good Job! (30000 test cases)

Test #27:

score: 0
Accepted
time: 53ms
memory: 16464kb

input:

1
253253
50359 179100
159762 56963
156480 129546
194694 165531
171829 15612
8904 244239
167203 79755
59278 193676
6064 179420
93089 11873
208865 161063
72803 55831
6938 69443
182632 252034
15492 123140
26694 88239
59982 95642
209852 233064
205527 137224
222851 93508
28102 71250
250703 159154
54445 3...

output:

106864
1 197372
212580 186832
237142 8761
237142 6866
207664 209722
250461 132302
250461 55922
250461 31345
104269 34813
185693 944
222573 186744
1444 32473
222573 237332
92801 27925
6173 60316
41588 123151
78885 249432
1500 136602
78885 86107
229601 178013
41588 215776
6173 75787
6173 132239
239410...

result:

ok Good Job! (1 test case)

Test #28:

score: 0
Accepted
time: 40ms
memory: 10080kb

input:

300
1855
1007 450
4 615
1845 844
426 65
1135 79
1020 1386
935 343
936 16
219 1370
1495 131
1409 13
1087 31
63 804
145 1689
1750 1731
694 623
243 626
418 1383
1396 990
1234 385
867 969
779 337
615 732
657 286
1134 1651
269 582
903 1755
478 1384
1360 1060
144 1082
217 1537
185 61
1634 1813
313 876
879...

output:

783
1 1785
1583 1483
511 484
1689 914
1344 810
1344 354
958 437
958 168
217 536
1334 116
1334 835
738 825
1514 471
738 1353
912 940
1344 505
161 605
403 709
161 1256
777 1518
1344 459
1689 1474
838 798
2 122
375 283
163 848
502 107
163 380
903 1637
205 984
903 1519
785 20
903 843
946 1636
1096 1768
...

result:

ok Good Job! (300 test cases)

Test #29:

score: 0
Accepted
time: 51ms
memory: 17368kb

input:

1
297722
2542 280838
47066 211579
45334 161254
161254 3387
161254 81700
286925 161254
188708 161254
163323 239454
177641 142518
161254 141588
161254 289112
161254 132883
161254 264103
161254 7898
131553 35341
274424 85972
161254 111454
161254 245526
195088 87188
83391 252892
74347 144981
248942 2949...

output:

89178
1 3387
161254 154441
161254 184879
161254 214202
161254 260126
161254 223340
161254 245419
161254 17459
161254 20355
161254 127412
161254 66384
161254 191933
161254 28747
161254 5838
161254 19351
161254 264671
161254 169492
161254 229938
161254 226736
161254 287282
97373 91960
161254 7201
1612...

result:

ok Good Job! (1 test case)

Test #30:

score: 0
Accepted
time: 61ms
memory: 17324kb

input:

1
297687
114063 114325
61315 256781
17004 254276
279378 173674
50685 133866
254276 270764
254276 168958
160573 254276
183000 144763
254276 41646
138547 226105
254276 62934
250757 284583
254276 147160
254276 62486
163839 23030
246684 80048
219153 38897
254276 184254
297273 295022
146005 254276
229491...

output:

124092
140833 270764
254276 62689
240861 165998
254276 160774
68234 131519
254276 258631
254276 170486
254276 277302
254276 44733
293857 18769
254276 151548
254276 39812
254276 38418
254276 220104
254276 12355
254276 199038
254276 45006
254276 145756
254276 262597
191359 81896
254276 139521
254276 1...

result:

ok Good Job! (1 test case)

Test #31:

score: 0
Accepted
time: 60ms
memory: 17424kb

input:

1
298467
24310 131068
270342 284416
110818 163791
140749 270342
200509 156894
128257 270342
286273 39457
230236 150598
48559 18558
271934 270342
270342 221456
270342 240611
146171 270342
142089 270342
265273 37099
4824 207615
273677 270342
270342 233942
131877 270342
282024 14594
58550 270342
3225 1...

output:

149232
270342 216089
157010 29667
275698 184623
270342 168826
270342 108251
175741 221699
270342 266132
270342 264566
270342 288286
270342 224267
270342 274099
270342 200572
270342 225317
98659 1370
104800 41883
270342 32713
133683 108538
270342 279372
249242 200371
270342 287403
270342 229641
10121...

result:

ok Good Job! (1 test case)

Test #32:

score: 0
Accepted
time: 37ms
memory: 15228kb

input:

1
299096
43798 64829
64829 22308
25723 64829
125491 64829
132554 64829
64829 31091
82698 64829
161922 64829
64829 48363
153172 64829
198568 64829
64829 68075
246874 64829
64829 122620
64829 237999
64829 257438
44676 64829
64829 295759
64829 45750
64829 17755
195879 64829
86788 64829
172696 64829
648...

output:

-1

result:

ok Good Job! (1 test case)

Test #33:

score: 0
Accepted
time: 51ms
memory: 17280kb

input:

1
299097
55978 208819
55978 222666
55978 118386
176498 55978
177724 55978
55978 286400
7823 55978
55978 86011
258404 55978
55978 127466
55978 52857
34668 55978
31665 55978
55978 160320
55978 239002
290038 55978
55978 36827
55978 280050
55978 104777
55978 158847
52282 55978
206198 55978
55978 58412
1...

output:

149548
1 208819
176583 115578
257132 197746
280431 283255
266001 105491
255180 96231
283182 34528
58809 280524
12267 288146
288565 152293
122263 199576
265260 238077
292878 296354
269524 81312
143614 276110
36649 45649
137718 228585
36265 275568
281461 173733
167482 249230
28515 266671
183746 215839...

result:

ok Good Job! (1 test case)

Test #34:

score: 0
Accepted
time: 52ms
memory: 17328kb

input:

1
299097
166438 82625
82625 128838
82625 141580
83485 82625
82625 210941
82625 40444
82625 45514
112980 82625
82625 8971
82625 240680
53717 82625
82625 243508
275918 82625
82625 214884
80291 82625
82625 244056
278345 82625
82625 50552
82625 84626
234287 82625
227857 82625
82625 282783
82625 169441
1...

output:

149548
1 166438
223601 65891
272810 284438
168533 1773
44830 45536
89247 234754
224454 26496
175752 253553
97418 80862
272599 161897
181710 252048
178092 195304
94161 130395
90886 89984
102793 141496
152714 18763
180433 69713
233532 64627
47059 143600
177876 3519
270112 54312
246221 41739
94801 1673...

result:

ok Good Job! (1 test case)

Test #35:

score: 0
Accepted
time: 49ms
memory: 17360kb

input:

1
299097
260330 58892
133029 58892
58892 172471
42729 58892
58892 26074
58892 99490
58892 3974
59464 58892
58892 186328
119256 58892
225649 58892
162394 58892
58892 128284
58892 215895
281775 58892
275533 58892
58892 149488
167782 58892
22771 58892
58892 63000
58892 9677
83128 58892
58892 121018
588...

output:

149548
1 260330
126573 101082
153018 13893
60280 156195
2182 282301
154097 233607
36172 178422
75835 171123
54263 148250
296959 270356
73847 39979
181257 95981
88036 13333
290396 85091
104163 150819
61461 138126
82389 135359
3037 265411
162380 138907
29852 285976
136970 52265
43588 124756
77938 1907...

result:

ok Good Job! (1 test case)

Test #36:

score: 0
Accepted
time: 43ms
memory: 14264kb

input:

10
29462
10852 16001
15495 6444
21756 23481
23752 13053
21560 13691
9711 23194
24917 23476
13053 18916
5 8995
17585 23447
644 13053
27831 13053
22383 10656
15443 21538
10814 3308
4868 2089
23555 13053
25895 13053
12345 13893
13053 14041
13053 8611
4444 15324
23999 27186
27037 13053
23208 22273
22940...

output:

8881
28511 8611
13053 14298
13053 3750
13053 22368
13053 4934
13053 29168
13053 4371
13053 8939
13053 11001
13053 27302
13053 18192
13053 7880
13053 398
13053 23175
3913 21877
13053 23403
13053 7269
13053 6179
13053 25550
13053 5435
13053 8434
13053 4346
13053 8233
13053 22132
13053 6123
13053 3924
...

result:

ok Good Job! (10 test cases)

Test #37:

score: 0
Accepted
time: 40ms
memory: 10120kb

input:

100
2959
1769 2187
2304 2429
2635 1931
271 2342
1671 153
707 1154
2597 1668
1048 204
1242 1301
926 2013
1557 2752
488 1893
613 1809
1416 2395
120 1179
982 321
2686 86
2313 2009
878 848
1447 2207
728 1885
2812 1683
1290 1627
2701 135
933 1099
1719 393
2355 2519
1368 384
311 1080
823 1642
459 2670
266...

output:

98
1 165
2824 293
2824 1967
2824 13
2824 2879
2824 2535
2824 2624
2824 945
2824 1131
2824 1500
2824 2660
2824 2231
2824 1854
2824 1916
2824 986
2824 2273
2824 1216
2824 1400
2824 957
2824 950
2824 2515
2824 2614
2824 1384
2824 1865
2824 651
2824 486
2824 1879
2824 2397
2824 1903
2824 804
2824 31
282...

result:

ok Good Job! (100 test cases)

Test #38:

score: 0
Accepted
time: 34ms
memory: 14132kb

input:

1000
294
200 192
200 46
43 256
85 47
98 12
127 200
111 127
257 124
168 32
45 274
197 49
200 27
144 38
156 256
148 202
200 80
31 248
35 66
282 128
60 200
189 37
88 54
238 280
44 245
46 263
220 53
144 200
200 55
58 184
200 153
84 173
31 284
24 170
200 211
22 244
232 242
200 208
188 26
139 154
251 104
...

output:

86
200 128
200 140
200 209
200 216
200 222
200 85
200 254
200 260
200 267
200 6
200 291
200 94
200 40
200 3
200 141
215 278
200 32
200 177
200 133
200 261
200 74
200 116
200 122
200 259
200 207
200 73
200 205
200 244
200 135
200 93
200 281
285 279
200 51
200 193
200 165
200 114
200 150
200 266
200 2...

result:

ok Good Job! (1000 test cases)

Test #39:

score: 0
Accepted
time: 68ms
memory: 17440kb

input:

1
299997
253129 238438
256990 147794
56683 265606
62100 74831
58006 231602
227120 138613
72936 16010
271383 221839
110579 31739
13864 11106
196180 159069
78858 61661
262511 279235
45738 172410
2512 6066
144552 29625
194524 184023
196218 229474
256817 33532
166763 175023
188106 91596
93278 158818
280...

output:

149998
1 121545
39235 110766
177944 296046
283056 260985
217965 9001
147235 273393
228957 22021
79169 283120
133492 294156
94020 179216
214638 219431
154192 98965
175212 12873
295705 82040
228108 119633
133866 263792
32750 296366
219583 182518
25502 297217
60281 261652
107287 182587
216791 101134
78...

result:

ok Good Job! (1 test case)

Test #40:

score: 0
Accepted
time: 65ms
memory: 17448kb

input:

1
299995
251405 13382
21412 273614
170998 239060
142811 89087
163686 80590
54073 23173
29717 93866
155059 150414
171846 663
218307 10405
252692 83378
131202 289721
52385 252854
293096 280491
216796 237285
242784 243233
52784 6922
68312 26488
205497 147202
65036 297840
58601 67107
164525 57839
167843...

output:

149997
1 237454
128894 157366
175094 136950
189266 97915
243316 57798
209526 218734
250156 16975
44077 21116
12824 55530
59879 29153
186999 132519
88031 188027
64205 29765
176215 242624
54281 264662
16440 223895
217645 87095
166451 104366
144392 29856
60275 127913
257735 208244
612 133474
268303 297...

result:

ok Good Job! (1 test case)

Test #41:

score: 0
Accepted
time: 61ms
memory: 17392kb

input:

1
299993
5467 110867
249637 87281
209055 74176
170317 272027
19928 97403
158898 19368
120942 93881
150886 63314
221175 188504
125295 79790
241291 263489
258417 196595
157362 130040
163372 85682
261036 45856
257946 163512
54262 17552
251249 14029
213457 65927
265238 36030
4861 71772
159755 111439
375...

output:

149996
133472 260002
1 98784
15886 7066
210306 222780
60065 101218
113745 23261
70428 42987
71615 79546
114766 115942
172445 92217
189501 196320
64731 203127
250098 230531
289602 119496
65074 260606
160591 27376
263472 131888
159168 140750
260868 216569
130463 14181
197139 133972
287764 198904
17707...

result:

ok Good Job! (1 test case)

Test #42:

score: 0
Accepted
time: 70ms
memory: 17416kb

input:

1
299991
248982 174625
105559 244297
35265 128781
206509 158409
13863 41023
249166 59270
215265 188850
218206 113138
126624 205065
241101 283870
31511 34427
237845 182965
134293 221193
214509 104965
67564 158810
198261 216053
115921 200242
245392 107170
62619 285117
48060 132083
166094 84748
150023 ...

output:

149995
60822 200738
92653 293556
286677 245971
8236 243350
53930 161812
913 170439
256985 113473
89316 290635
53206 117744
91584 208278
167575 33178
184489 101756
76933 241872
282673 81025
83460 63387
242332 120786
145921 241799
298718 237911
235848 805
238334 4685
20192 45797
227677 115930
21778 29...

result:

ok Good Job! (1 test case)

Test #43:

score: 0
Accepted
time: 65ms
memory: 17188kb

input:

1
299999
185541 176688
252501 252009
201515 181336
174664 10052
235206 78841
271650 240453
177704 41444
30343 236755
136584 224074
123830 176470
119252 294416
176341 111829
241834 52983
35945 184402
68227 225761
146133 151540
249663 70136
156441 42951
95322 152829
259090 103376
84766 152588
150129 1...

output:

149999
1 153018
132693 101239
157421 150695
96383 132733
204597 292200
78327 218110
75624 25625
230175 99182
239853 282292
128336 84144
225119 263105
129373 193672
144975 61385
250612 258793
129417 31219
223234 149420
265745 276355
54713 255281
21558 130969
195168 165994
91669 160794
44178 83089
280...

result:

ok Good Job! (1 test case)

Test #44:

score: 0
Accepted
time: 65ms
memory: 17224kb

input:

1
299997
46586 268160
120257 162918
155586 87070
233774 236522
195573 139640
213343 184602
26338 174317
236326 103114
246267 241694
166020 217647
73806 217138
115817 291894
296219 281396
231138 217264
57086 215561
296205 295067
174916 36910
262907 177629
268640 277927
33944 172724
299448 298104
2913...

output:

149998
1 106515
167604 9335
221333 124167
260046 270078
27663 91303
260271 232785
145121 156682
104232 21527
217355 225670
65026 220301
22884 52893
271088 272421
25748 212089
61738 56453
211268 203032
36951 106517
274491 222356
118630 117599
275874 262978
6998 86573
168644 226078
90535 142243
245792...

result:

ok Good Job! (1 test case)

Test #45:

score: 0
Accepted
time: 48ms
memory: 10008kb

input:

100
2997
1842 108
983 1626
2076 2280
1960 2673
2029 1154
1506 836
144 1843
173 1775
322 1567
1632 1092
2608 2819
2737 2888
24 2046
400 2487
2396 2569
2072 1695
2223 2237
2175 592
694 2236
2523 2322
2211 2325
2196 2888
1509 1586
2376 2272
2063 2310
2471 2612
2530 2101
1618 25
1830 1404
2646 743
2256 ...

output:

1498
1 1544
1298 189
2723 2950
1158 226
2073 2671
1195 2565
1150 113
2948 2677
313 2383
69 1979
671 1744
653 894
2158 561
2343 1277
2661 2339
1494 1237
2306 1930
237 1462
2959 2898
485 2248
101 972
2107 2206
1373 2044
272 1936
1475 791
2313 2896
608 577
1908 1869
112 1593
412 39
2005 170
2078 2851
5...

result:

ok Good Job! (100 test cases)

Extra Test:

score: 0
Extra Test Passed
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