QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#359474#6329. Colorful Graphucup-team1004WA 98ms11056kbC++141.9kb2024-03-20 18:14:272024-03-20 18:14:28

Judging History

你现在查看的是最新测评结果

  • [2024-03-20 18:14:28]
  • 评测
  • 测评结果:WA
  • 用时:98ms
  • 内存:11056kb
  • [2024-03-20 18:14:27]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
#define all(a) (a).begin(),(a).end()
#ifdef DEBUG
template<class T>
ostream& operator << (ostream &out,vector<T> a){
	out<<'[';
	for(T x:a)out<<x<<',';
	return out<<']';
}
template<class T>
vector<T> ary(T *a,int l,int r){
	return vector<T>{a+l,a+1+r};
}
template<class T>
void debug(T x){
	cerr<<x<<endl;
}
template<class T,class...S>
void debug(T x,S...y){
	cerr<<x<<' ',debug(y...);
}
#else
#define debug(...) void()
#endif
const int N=7e3+10,INF=1e9;
int n,m,col[N];
vector<int>to[N],tr[N];
int dft,sct,dfn[N],low[N],scc[N];
void tarjan(int u){
	static int top,stk[N];
	dfn[u]=low[u]=++dft,stk[++top]=u;
	for(int v:to[u]){
		if(!dfn[v])tarjan(v),low[u]=min(low[u],low[v]);
		else if(!scc[v])low[u]=min(low[u],dfn[v]);
	}
	if(low[u]==dfn[u]){
		sct++;
		do scc[stk[top]]=sct;while(stk[top--]^u);
	}
}
bitset<N>a[N],vis;
int match[N],cur[N];
bool dfs(int u){
	if(vis[u])return 0;
	for(;cur[u]<=sct;){
		int v=cur[u];
		cur[u]=a[u]._Find_next(cur[u]);
		if(!match[v]||dfs(match[v]))return match[v]=u,1;
	}
	vis[u]=1;
	return 0;
}
int main(){
	cin>>n>>m;
	for(int u,v;m--;){
		cin>>u>>v,to[u].push_back(v);
	}
	for(int i=1;i<=n;i++){
		if(!dfn[i])tarjan(i);
	}
	for(int i=1;i<=n;i++)scc[i]=sct-scc[i]+1;
	for(int u=1;u<=n;u++){
		for(int v:to[u]){
			if(scc[u]!=scc[v]){
				tr[scc[v]].push_back(scc[u]);
			}
		}
	}
	for(int i=sct;i>=1;i--){
		a[i][i]=1;
		for(int j:tr[i])a[j]|=a[i];
	}
	for(int i=1;i<=sct;i++)a[i][i]=0;
	// for(int i=1;i<=sct;i++){
	// 	for(int j=1;j<=sct;j++){
	// 		if(to[i][j])debug(i,j);
	// 	}
	// }
	for(int i=1;i<=n;i++)cur[i]=a[i]._Find_first();
	for(int i=1;i<=n;i++)dfs(i);
	vis.reset();
	for(int i=1;i<=sct;i++)vis[match[i]]=1;
	for(int i=1,x=0;i<=sct;i++)if(!vis[i]){
		x++;
		for(int u=i;u;u=match[u])col[u]=x;
	}
	for(int i=1;i<=n;i++)printf("%d%c",col[scc[i]],"\n "[i<n]);
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 4152kb

input:

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

output:

1 1 1 2 1

result:

ok AC

Test #2:

score: 0
Accepted
time: 1ms
memory: 4148kb

input:

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

output:

2 2 1 1 1

result:

ok AC

Test #3:

score: 0
Accepted
time: 1ms
memory: 8264kb

input:

8 6
6 1
3 4
3 6
2 3
4 1
6 4

output:

4 4 4 4 3 4 2 1

result:

ok AC

Test #4:

score: 0
Accepted
time: 75ms
memory: 10992kb

input:

7000 6999
4365 4296
2980 3141
6820 4995
4781 24
2416 5844
2940 2675
3293 2163
3853 5356
262 6706
1985 1497
5241 3803
353 1624
5838 4708
5452 3019
2029 6161
3849 4219
1095 1453
4268 4567
1184 1857
2911 3977
1662 2751
6353 6496
2002 6628
1407 4623
425 1331
4445 4277
1259 3165
4994 1044
2756 5788
5496 ...

output:

1 94 425 187 2 145 2 386 641 246 1 1 40 1 232 3 1235 4 690 1726 494 1166 2 253 89 1322 106 4 347 1628 580 553 1217 8 394 393 1465 900 2 1105 226 593 1079 1217 1020 1064 1456 2 1069 993 861 56 459 2 104 1564 1 918 720 1459 559 2 2 2 1593 1306 2 2 245 429 926 1041 351 770 864 572 4 1181 819 2 2 2 432 ...

result:

ok AC

Test #5:

score: 0
Accepted
time: 72ms
memory: 10824kb

input:

7000 6999
4832 1603
5984 6985
5355 3687
6007 2170
5984 3486
3267 2189
538 2123
4343 4553
5855 6168
5984 257
4239 2304
5984 2063
3298 1869
5984 6353
5984 2018
5984 5387
5984 3382
3164 3978
2690 2816
4810 2638
5984 3773
5984 1634
5984 2786
5984 3671
5984 5140
2943 5721
5984 414
1105 4060
3093 796
5984...

output:

1 1 1716 1869 611 1 1448 1663 1 1 1 1 1 1060 1 2218 1 1 1 4 1773 621 239 1102 1 1 1486 438 1552 766 670 1 1 1 1192 1556 963 1 2217 2199 2055 2097 1147 1668 488 327 2313 687 1854 761 2316 801 31 2130 523 1 2239 1946 1237 633 1 1 552 1 1529 776 1 1717 1 70 2150 1 1 1 723 1667 1 1 727 1 530 1450 2211 4...

result:

ok AC

Test #6:

score: 0
Accepted
time: 83ms
memory: 10908kb

input:

7000 6999
1649 5337
1701 3344
4394 2172
3330 39
5932 1141
5381 5340
5453 3300
125 2172
6810 5263
804 2172
6635 2172
676 4740
3015 1183
1710 5769
611 5915
3419 1581
2094 2172
4508 2172
6604 2433
6113 1466
1604 696
1518 1123
1287 2940
4825 2172
5130 4524
2693 2172
106 2172
5157 2172
3693 2172
5198 217...

output:

1 2 1870 2015 78 3 2169 1250 614 4 1125 5 6 878 579 1805 7 1949 1176 644 651 8 9 888 494 2068 691 1921 10 11 542 12 1000 713 924 13 364 1913 2240 14 208 261 593 15 336 1157 629 2031 16 36 1957 17 662 796 639 2011 291 18 1751 5 19 52 20 151 507 440 2113 1521 21 22 23 24 25 1256 425 1123 26 939 993 27...

result:

ok AC

Test #7:

score: 0
Accepted
time: 98ms
memory: 10996kb

input:

7000 6999
2896 6321
881 2623
5058 2623
4833 2623
4669 2623
4781 5007
1447 2623
4781 4768
4781 3834
2758 4792
797 5055
3784 2623
4781 5510
6606 3040
597 3459
4136 2037
1291 3989
4781 837
4781 4379
5637 2053
1642 2665
4781 4664
4781 952
4924 2511
4781 4201
4781 2352
4781 5362
3901 197
137 2623
2706 19...

output:

1 1 1 1 1 1 1 2 1397 3 1 1 1 1 1 308 203 1 1 4 406 1 956 1144 384 247 323 744 5 6 1 7 1 1 1 1 215 1525 1 1052 1 1 872 1 8 1 9 1 10 1 1 1 11 12 1 13 1 1 968 1 14 1 1 1638 1 15 1479 252 1 8 1 1 1 16 1 1 1 1 1 1 1 734 1 17 699 606 18 1 1 1 19 228 241 20 1 1 1 1 21 22 23 1 1 1275 24 238 1 1 25 658 1 1 5...

result:

ok AC

Test #8:

score: 0
Accepted
time: 82ms
memory: 10924kb

input:

6999 6998
1269 3969
1269 2429
1269 2609
1269 2515
1269 6166
1269 6614
3108 1269
2105 1269
4670 1269
578 1269
4661 1269
1421 1269
2576 1269
6152 1269
1269 6636
3011 1269
305 1269
5189 1269
1683 1269
6861 1269
1269 5798
1499 1269
282 1269
914 1269
80 1269
677 1269
701 1269
1269 359
6521 1269
1269 1754...

output:

1 2 3 4 2427 5 6 833 2455 255 196 554 7 3066 8 9 10 2524 11 12 3375 13 14 808 15 16 17 18 19 1825 20 2433 21 22 306 23 1886 3041 24 2985 2529 25 26 2296 412 27 28 29 30 31 978 1948 7 32 3237 1105 33 34 35 36 37 2923 3480 38 104 667 163 39 40 41 2975 42 2770 1755 1397 43 44 708 45 46 1405 47 1120 193...

result:

ok AC

Test #9:

score: 0
Accepted
time: 0ms
memory: 10296kb

input:

7000 0

output:

7000 6999 6998 6997 6996 6995 6994 6993 6992 6991 6990 6989 6988 6987 6986 6985 6984 6983 6982 6981 6980 6979 6978 6977 6976 6975 6974 6973 6972 6971 6970 6969 6968 6967 6966 6965 6964 6963 6962 6961 6960 6959 6958 6957 6956 6955 6954 6953 6952 6951 6950 6949 6948 6947 6946 6945 6944 6943 6942 6941 ...

result:

ok AC

Test #10:

score: 0
Accepted
time: 4ms
memory: 11056kb

input:

7000 6999
3138 1903
3285 5919
6182 1430
1164 961
1577 6445
1390 3384
935 5723
6614 6387
4799 2877
3915 5128
5366 5455
2287 3941
2053 2326
4022 6993
488 2922
4327 4701
4674 3221
1666 4773
4356 3232
3888 937
4318 6942
577 1299
4491 1938
5154 1254
790 5532
4286 5478
2918 6725
2853 304
2554 5207
5140 77...

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 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 AC

Test #11:

score: 0
Accepted
time: 6ms
memory: 7936kb

input:

7000 6999
33 3147
5877 4807
3116 4168
1651 2456
624 1740
6440 3058
6414 489
1023 2523
706 93
5523 598
4211 6063
3570 6840
6566 2971
6614 1907
5893 4389
4022 2527
5096 2345
4682 2134
188 5597
695 4285
1344 3832
3534 879
6574 6252
3759 3444
2167 85
5630 6600
3158 4404
6389 689
4871 6719
4295 6008
3437...

output:

38 38 71 71 38 38 71 38 71 71 71 71 71 37 71 38 71 38 71 71 38 71 38 71 71 71 71 71 71 71 71 71 36 71 71 38 38 38 71 71 71 38 38 71 60 71 38 71 71 38 71 71 71 71 71 38 71 71 71 38 38 38 38 71 71 71 71 38 38 71 38 38 71 71 38 71 38 38 38 71 38 38 71 71 38 38 71 71 38 71 38 71 71 71 71 38 35 71 38 71 ...

result:

ok AC

Test #12:

score: 0
Accepted
time: 6ms
memory: 8972kb

input:

7000 6999
1247 5150
3318 2013
5686 1615
6145 6521
5717 94
2787 3443
2648 4875
5332 5934
1897 1651
4640 2183
1750 6964
148 5228
745 2814
474 1165
496 6735
180 3412
2723 3374
6200 4361
497 5328
1928 5998
5648 1261
5090 4723
1715 706
2499 897
6569 6204
6039 2787
2882 5044
5767 4256
975 1877
1857 4453
6...

output:

274 192 274 192 274 274 193 274 193 274 193 192 193 274 274 192 274 274 274 274 274 274 274 274 274 274 220 274 193 191 274 274 274 274 274 274 193 274 193 274 274 274 193 274 274 192 274 274 274 192 192 190 274 274 274 274 274 193 193 274 192 193 274 274 274 192 274 274 193 193 274 193 193 274 274 ...

result:

ok AC

Test #13:

score: 0
Accepted
time: 21ms
memory: 10000kb

input:

7000 6999
2349 199
5295 2831
6143 2006
3212 3198
6956 3807
732 4838
5069 1027
5744 3479
6 5301
5687 4452
4201 1151
1353 4884
548 3506
6094 4799
4950 6939
5234 817
652 1314
979 6984
5771 1851
398 1322
2294 4298
847 3929
6833 183
2904 6745
4797 3874
94 315
4282 582
6591 5037
962 147
799 908
2593 5547
...

output:

1049 1048 411 1049 1049 945 1036 411 411 411 881 1049 411 411 411 1049 411 411 631 411 411 1049 1049 950 411 1049 1049 539 411 1049 411 411 411 411 1049 554 1049 411 411 823 411 1049 902 411 1049 705 411 1049 1049 729 411 411 547 427 411 410 411 411 531 411 1049 1049 411 1049 1049 411 411 411 411 41...

result:

ok AC

Test #14:

score: 0
Accepted
time: 33ms
memory: 10164kb

input:

7000 6999
3409 1629
2076 6412
4997 1078
6320 626
4501 1104
4173 1774
5507 2375
2299 5115
4321 127
1192 6635
1909 3398
2972 499
862 5024
421 2931
861 1536
902 3813
659 4514
1843 3035
3669 1228
1724 1880
34 706
133 3468
6116 585
5073 1461
5667 3405
715 4834
6915 3007
1736 6108
3264 2870
2393 6474
2108...

output:

721 2618 1471 1006 2618 720 2188 2618 1869 1586 721 1247 2618 956 1910 1517 1407 2618 1178 2327 2618 1530 2618 1879 1977 2618 923 736 769 2399 2618 2477 2618 1741 721 1659 1505 1611 1578 801 1139 719 718 721 2618 1437 721 1563 721 962 1398 2235 2618 2323 2618 1680 879 721 2502 1306 2529 2618 2349 17...

result:

ok AC

Test #15:

score: -100
Wrong Answer
time: 0ms
memory: 10644kb

input:

7000 7000
2048 5882
6801 2408
3225 2608
1441 5079
497 6253
557 5589
2535 6257
4800 2595
4713 1286
4759 6636
4303 4296
6195 2048
6994 2987
1249 3044
1036 10
6472 2076
1996 1086
1279 1486
6100 369
4797 3437
2493 4576
2944 5601
197 5582
5488 5035
4023 659
2651 5024
2257 5710
1001 3941
446 4815
687 702
...

output:

3132 3131 3125 3109 3108 3102 3092 3091 3090 3087 3085 3084 3065 3064 3010 3008 2831 2830 2826 3081 2825 2824 2822 2820 2819 2797 2787 2783 2780 2779 2700 2694 2692 2685 2805 2683 2675 2674 2673 2672 2671 2669 2668 2723 2665 2664 2663 2662 2964 2660 2659 2676 3035 2656 2653 2679 2652 3099 2648 2896 ...

result:

wrong answer Integer 3132 violates the range [1, 3009]