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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#327903#1844. CactusfangzichangAC ✓358ms137204kbC++172.5kb2024-02-15 15:28:112024-02-15 15:28:12

Judging History

你现在查看的是最新测评结果

  • [2024-02-15 15:28:12]
  • 评测
  • 测评结果:AC
  • 用时:358ms
  • 内存:137204kb
  • [2024-02-15 15:28:11]
  • 提交

answer

#include<bits/extc++.h>
#include<bits/stdc++.h>
//#pragma GCC optimize(2)
//本代码含有小众情感元素,建议满 18 周岁后观看
#ifdef __unix__
#define getchar getchar_unlocked
#define putchar putchar_unlocked
#else
#define getchar _getchar_nolock
#define putchar _putchar_nolock
#endif
#define debug fprintf(stderr,"Tomoyo after ~It's a wonderful life!~\n")
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define Inf (int)INFINITY
#define inf 0x3f3f3f3f
#define pb push_back
#define ll long long
#define endl '\n'
#define y second
#define x first
using namespace std;
const int N=6e5+10;
void read(){};
template<class T1,class ...T2>
inline void read(T1& ret,T2&... rest){
	ret=0;char c=getchar();bool f=false;
	while(c<'0'||c>'9')f=c=='-',c=getchar();
	while(c>='0'&&c<='9')ret=ret*10+c-'0',c=getchar();
	f&&(ret=-ret),read(rest...);
}
#define cin(...) read(__VA_ARGS__)
template<class T>
inline void print(T x){
	static int s[35],t=0;
	bool f=x<0;if(f)x=-x;
	do s[t++]=x%10,x/=10;while(x);
	f&&putchar('-');while(t)putchar(s[--t]+'0');
}
set<int>nxt[N];
vector<pii>ans;
vector<int>stk,rt,t[N],tmp[N];
int n,m,flg,tot,cnt,dfn[N],low[N],r[N];
#define op(x) ans.pb({1,x})
void work(int u){
	if(!(nxt[u].size()&1))return;
	for(int v:nxt[u])tmp[u].pb(v),nxt[v].erase(u);
	op(u),nxt[u].clear();
	for(int v:tmp[u])work(v);
}
void Tarjan(int u,int fa){
	low[u]=dfn[u]=++tot,stk.pb(u);
	for(int v:nxt[u])if(v^fa){
		if(!dfn[v]){
			Tarjan(v,u),low[u]=min(low[u],low[v]);
			if(low[v]>=dfn[u]){
				t[++cnt].pb(u),t[u].pb(cnt);
				for(int w=-1;w!=v;stk.pop_back())
					t[cnt].pb(w=stk.back()),t[w].pb(cnt);
			}
		}
		else low[u]=min(low[u],dfn[v]);
	}
}
void dfs(int u,int fa){
	for(int v:t[u])if(v^fa)dfs(v,u);
	if(u>n){
		//assert(t[u][0]==fa);
		for(int i=1;i<(int)(t[u].size());i++)op(t[u][i]+(i&1)*n);
		op(t[u][1]),op(t[u].back()+(t[u].size()&1)*n);
	}
}
int main(){
	cin(n,m),cnt=n;
	for(int i=1,u,v;i<=m;i++)
		cin(u,v),nxt[u].insert(v),nxt[v].insert(u);
	for(int u=1;u<=n;u++)work(u);
	for(int u=1;u<=n;u++)if(nxt[u].size())flg=1;
	if(!flg){
		print(0),putchar(' '),print(ans.size()),putchar(endl);
		for(pii p:ans)print(p.x),putchar(' '),print(p.y),putchar(endl);
		return 0;
	}
	ans.pb({2,0});
	for(int u=1;u<=n;u++){
		if(!nxt[u].size())op(u);
		else if(!dfn[u])rt.pb(u),r[u]=1,Tarjan(u,0);
	}
	for(int u:rt)dfs(u,0),op(u);
	print(0),putchar(' '),print(ans.size()),putchar(endl);
	for(pii p:ans){
		print(p.x);if(p.y)putchar(' '),print(p.y);
		putchar(endl);
	}
	return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 15ms
memory: 63356kb

input:

3 3
1 2
1 3
2 3

output:

0 6
2
1 6
1 2
1 3
1 5
1 1

result:

ok You are right!

Test #2:

score: 0
Accepted
time: 7ms
memory: 61352kb

input:

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

output:

0 5
1 4
1 2
1 1
1 6
1 3

result:

ok You are right!

Test #3:

score: 0
Accepted
time: 305ms
memory: 102980kb

input:

300000 368742
1 143504
1 234282
2 91276
2 296320
3 274816
4 212293
4 258214
5 253489
5 295826
6 96521
6 252745
6 267103
6 269879
7 5293
7 295586
8 44304
8 57067
8 233291
9 190526
10 18682
11 7440
12 24695
12 172561
12 243692
12 280316
13 80152
13 268749
14 146394
14 207280
15 151280
15 226848
16 458...

output:

0 521873
1 3
1 274816
1 273658
1 217572
1 248509
1 231418
1 73094
1 117739
1 11855
1 48428
1 55953
1 121689
1 234392
1 181317
1 238712
1 77369
1 105062
1 6838
1 130659
1 8
1 44304
1 9
1 10
1 18682
1 63155
1 148043
1 194189
1 26612
1 1155
1 31020
1 108936
1 71065
1 77412
1 124995
1 126920
1 53663
1 4...

result:

ok You are right!

Test #4:

score: 0
Accepted
time: 228ms
memory: 108632kb

input:

221155 322762
1 16446
1 214165
2 22590
2 67599
2 77971
2 173665
3 93601
3 218260
4 78445
4 126476
5 85674
5 129671
6 105765
6 161364
7 16742
7 19554
7 28037
7 51308
7 57193
7 151371
7 173612
7 218897
8 50830
8 178401
9 36068
9 198155
10 31227
10 57914
11 104822
11 196836
12 57848
12 129309
13 17006
...

output:

0 424372
2
1 306425
1 18651
1 85270
1 239806
1 400648
1 15798
1 179493
1 236953
1 384625
1 134059
1 163470
1 355214
1 432093
1 48536
1 210938
1 269691
1 296420
1 49349
1 221978
1 75265
1 823
1 357041
1 88288
1 135886
1 309443
1 360033
1 61018
1 138878
1 282173
1 353695
1 89956
1 132540
1 311111
1 30...

result:

ok You are right!

Test #5:

score: 0
Accepted
time: 327ms
memory: 128624kb

input:

299999 449997
1 135132
1 274953
2 18542
2 217508
3 47624
3 205183
4 121104
4 270541
5 117846
5 249889
6 272286
6 286376
7 63903
7 89777
8 153806
8 271509
9 49792
9 220343
10 4543
10 293635
11 99727
11 261001
12 29177
12 108823
13 119446
13 183797
14 210754
14 247874
15 53747
15 122774
15 179117
15 2...

output:

0 599998
2
1 410521
1 8522
1 110522
1 308521
1 345845
1 27017
1 45846
1 327016
1 539834
1 176379
1 239835
1 476378
1 596880
1 92150
1 296881
1 392149
1 587759
1 209539
1 287760
1 509538
1 528487
1 81765
1 228488
1 381764
1 560109
1 33648
1 260110
1 333647
1 583207
1 22595
1 283208
1 322594
1 544475
...

result:

ok You are right!

Test #6:

score: 0
Accepted
time: 295ms
memory: 107752kb

input:

300000 399999
1 215446
1 231704
2 115181
2 170051
3 1993
3 176144
4 18113
5 34133
5 53137
6 163395
6 256615
7 39049
7 128932
8 193977
8 205442
9 2810
9 260471
10 169593
10 278417
11 56849
11 139915
12 78729
12 164991
13 55416
13 62164
14 195504
14 254962
15 41739
15 143315
16 61905
16 244260
16 2772...

output:

0 511052
1 4
1 16
1 18
1 22
1 202949
1 285958
1 29
1 30
1 26134
1 271021
1 32
1 123549
1 181630
1 103490
1 257757
1 26829
1 52124
1 64135
1 65458
1 71442
1 80024
1 233192
1 109574
1 81157
1 35
1 139478
1 250704
1 64740
1 52176
1 166094
1 224937
1 263467
1 100032
1 77446
1 226783
1 128106
1 200630
1 ...

result:

ok You are right!

Test #7:

score: 0
Accepted
time: 358ms
memory: 137204kb

input:

299999 449997
1 207233
1 249849
2 26483
2 120133
3 48410
3 154146
3 264694
3 276131
4 33119
4 235166
5 104107
5 256329
6 121201
6 153902
7 217994
7 249799
8 98561
8 149095
8 161763
8 244331
9 113135
9 263126
10 78235
10 93112
11 58805
11 104743
11 135998
11 140583
11 199748
11 227329
12 34054
12 124...

output:

0 599998
2
1 596237
1 15658
1 296238
1 315657
1 366689
1 21437
1 66690
1 321436
1 417215
1 59977
1 117216
1 359976
1 546989
1 142542
1 246990
1 442541
1 447558
1 101581
1 147559
1 401580
1 361235
1 11236
1 61236
1 311235
1 359753
1 47646
1 59754
1 347645
1 586713
1 4299
1 286714
1 304298
1 586536
1 ...

result:

ok You are right!

Test #8:

score: 0
Accepted
time: 267ms
memory: 120580kb

input:

280291 392867
1 18749
1 136817
2 63519
2 159662
2 172896
2 251761
3 1878
3 142748
4 203284
4 228584
5 15844
5 50208
6 136817
6 245137
7 64955
7 165499
8 136817
8 220201
9 136817
9 191205
10 136817
10 192877
11 139542
11 162473
12 57326
12 190877
13 33859
13 153427
14 110791
14 136817
15 16389
15 864...

output:

0 505446
2
1 525428
1 6
1 245137
1 280297
1 500492
1 8
1 220201
1 280299
1 471496
1 9
1 191205
1 280300
1 473168
1 10
1 192877
1 280301
1 391082
1 14
1 110791
1 280305
1 297487
1 26
1 17196
1 280317
1 485631
1 30
1 205340
1 280321
1 520731
1 31
1 240440
1 280322
1 319272
1 36
1 38981
1 280327
1 5180...

result:

ok You are right!

Test #9:

score: 0
Accepted
time: 295ms
memory: 129252kb

input:

292995 410094
1 71999
1 169963
2 98256
2 132856
3 132856
3 165225
4 82003
4 132856
5 132364
5 160935
6 35335
6 147436
7 132856
7 255985
8 132856
8 200164
9 4463
9 156552
10 2320
10 99646
11 132856
11 185279
12 110686
12 285870
13 73136
13 275400
14 121746
14 132856
15 153856
15 278178
16 83552
16 21...

output:

0 527196
2
1 470031
1 176921
1 177036
1 469916
1 482915
1 55598
1 189920
1 348593
1 448103
1 117870
1 155108
1 410865
1 497676
1 89043
1 204681
1 382038
1 481029
1 156010
1 188034
1 449005
1 541849
1 10689
1 248854
1 303684
1 371735
1 38698
1 78740
1 331693
1 476485
1 151364
1 183490
1 444359
1 5557...

result:

ok You are right!

Test #10:

score: 0
Accepted
time: 291ms
memory: 104076kb

input:

300000 403707
1 129294
1 278573
2 11106
2 129294
3 184237
3 221196
4 55817
4 100929
4 136405
4 238314
5 31450
5 186997
6 4795
7 129294
7 163574
8 61455
8 129294
9 21984
9 129294
10 231237
11 129294
11 228549
12 129294
12 224390
13 19505
13 26574
14 55849
14 98378
15 23106
16 4025
16 100577
17 67090
...

output:

0 495571
1 6
1 10
1 231237
1 158616
1 69702
1 15
1 23106
1 19
1 20
1 68436
1 110694
1 14262
1 110432
1 247212
1 49549
1 244837
1 11639
1 141945
1 171293
1 25
1 26
1 37
1 90299
1 43
1 44
1 220797
1 7582
1 153915
1 210713
1 53091
1 36603
1 89991
1 60626
1 71253
1 140486
1 24893
1 7891
1 138920
1 22312...

result:

ok You are right!

Test #11:

score: 0
Accepted
time: 7ms
memory: 60616kb

input:

1 0

output:

0 0

result:

ok You are right!

Test #12:

score: 0
Accepted
time: 241ms
memory: 97728kb

input:

255596 313062
1 10655
1 15889
1 35851
1 220010
1 243820
2 236476
3 75462
3 240876
3 241881
4 164691
5 112681
6 31313
6 40322
6 89447
6 199617
7 78108
7 249785
8 180866
8 225929
9 26444
10 209074
11 108986
12 147579
12 165165
13 53313
13 182814
13 230088
14 124147
15 73182
15 98755
15 212191
16 98391...

output:

0 415963
1 1
1 10655
1 15889
1 220010
1 243820
1 216583
1 68743
1 101829
1 86887
1 2
1 3
1 75462
1 240876
1 241881
1 1722
1 4
1 5
1 9
1 10
1 209074
1 177824
1 11
1 108986
1 13
1 182814
1 14
1 124147
1 5520
1 9028
1 62318
1 72214
1 187645
1 116944
1 15
1 18
1 147217
1 195359
1 49875
1 37460
1 74697
1...

result:

ok You are right!

Test #13:

score: 0
Accepted
time: 249ms
memory: 115280kb

input:

244001 330353
1 33864
1 90721
1 120604
1 122898
1 195228
1 211057
2 9529
2 118870
3 35564
3 229469
4 81097
4 236945
5 47476
5 223470
6 46769
6 48597
7 49304
7 146411
7 154996
7 220507
8 14839
8 162760
9 85423
9 114698
10 4239
10 32108
10 39949
10 85700
11 160326
11 205183
12 25068
12 156392
13 13985...

output:

0 416708
2
1 378027
1 28386
1 134026
1 272387
1 416021
1 75559
1 172020
1 319560
1 314827
1 45512
1 70826
1 289513
1 342457
1 83901
1 98456
1 327902
1 314924
1 215201
1 256204
1 70923
1 12203
1 339365
1 38613
1 95364
1 282614
1 436224
1 165740
1 192223
1 409741
1 363887
1 48312
1 119886
1 292313
1 4...

result:

ok You are right!