QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#479695 | #999. 边双连通分量 | Justin# | AC ✓ | 56ms | 20964kb | C++14 | 1.2kb | 2024-07-15 20:18:41 | 2024-07-15 20:18:42 |
Judging History
answer
#include<bits/stdc++.h>
using lld=long long;
const int N=2e5+5,M=2e5+5;
struct Edge{
int to,nxt;
}e[M<<1];
int hd[N],pe=1;
void Add_Edge(int u,int v,bool T=true){
e[++pe]={v,hd[u]},hd[u]=pe;
if(T) Add_Edge(v,u,false);
}
int n,m;
int dfn[N],low[N],pdfn,stk[N],pstk;
bool instk[N];
std::vector<std::vector<int>> EBCC;
void DFS(int u,int fr){
dfn[u]=low[u]=++pdfn;
instk[stk[++pstk]=u]=true;
for(int i=hd[u];i;i=e[i].nxt){
int v=e[i].to;
if(!dfn[v]) DFS(v,i),low[u]=std::min(low[u],low[v]);
else if(i^fr^1) low[u]=std::min(low[u],dfn[v]);
}
if(dfn[u]==low[u]){
EBCC.emplace_back();
while(instk[u]){
int top=stk[pstk--];
instk[top]=false;
EBCC.back().emplace_back(top);
}
}
}
int main(){
scanf("%d%d",&n,&m);
for(int i=1;i<=m;++i){
int u,v; scanf("%d%d",&u,&v);
Add_Edge(++u,++v);
}
for(int i=1;i<=n;++i) if(!dfn[i]) DFS(i,0);
printf("%ld\n",EBCC.size());
for(auto ebcc:EBCC){
printf("%ld ",ebcc.size());
for(int i=0;i<ebcc.size();++i) printf("%d%c",--ebcc[i]," \n"[i+1==ebcc.size()]);
}
return 0;
}
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: 5904kb
input:
4 5 0 2 0 1 3 0 2 1 2 3
output:
1 4 1 2 3 0
result:
ok OK
Test #2:
score: 0
Accepted
time: 0ms
memory: 7916kb
input:
13 21 4 5 8 7 12 3 3 10 1 5 10 2 0 0 11 4 2 12 9 1 9 0 7 8 7 6 9 1 8 2 12 10 11 0 8 6 3 2 5 9 4 11
output:
3 6 1 9 5 4 11 0 3 7 6 8 4 12 10 3 2
result:
ok OK
Test #3:
score: 0
Accepted
time: 0ms
memory: 6080kb
input:
2 2 0 1 1 0
output:
1 2 1 0
result:
ok OK
Test #4:
score: 0
Accepted
time: 53ms
memory: 20700kb
input:
200000 200000 127668 148778 77100 11865 85144 199231 39485 84917 102044 187263 130204 174776 26220 198288 162188 12078 92196 146334 120537 38083 150353 160479 18707 6545 101149 25450 62271 9177 38892 6454 11709 191939 89247 145109 140599 121858 197410 148980 55975 169098 128576 59852 68224 182347 89...
output:
105340 1 187755 1 125231 1 64929 1 82097 1 51090 1 136464 1 116597 1 129798 1 161502 1 94362 1 125004 1 177202 1 139581 1 165793 1 33838 1 14613 1 96082 1 185256 1 138659 1 10704 1 2426 1 108507 1 15298 1 174772 1 54060 1 52863 1 112474 1 75320 1 125800 1 90149 1 164599 1 95116 1 66559 1 191832 1 10...
result:
ok OK
Test #5:
score: 0
Accepted
time: 53ms
memory: 20964kb
input:
200000 200000 150762 148756 172967 108322 69862 125085 84513 111056 141009 156725 36311 103205 31879 79919 62895 63377 21697 115522 161610 160423 113104 10277 106927 168428 136657 198931 52292 164110 149020 7038 115111 112823 35584 124385 45429 191603 96444 30523 195578 149089 160105 58103 139792 27...
output:
104955 1 186441 1 189433 1 8872 1 173494 1 78841 1 33396 1 55811 1 18809 1 165080 1 80200 1 189683 1 61324 1 94035 1 85022 1 71511 1 96515 1 41645 1 122857 1 51706 1 82414 1 30677 1 188052 1 67162 1 3303 1 5596 1 84880 1 197951 1 154083 1 137778 1 84907 1 10220 1 76847 1 81878 1 47471 1 28277 1 1196...
result:
ok OK
Test #6:
score: 0
Accepted
time: 56ms
memory: 20960kb
input:
200000 200000 53335 120202 193029 92221 8244 61648 50176 7825 97274 91479 85438 76999 26861 80116 162826 198446 160509 95916 143190 116619 121254 192931 121545 132273 149400 91882 97032 5048 179008 82221 187475 70697 159074 65868 158744 94466 120006 170635 36429 162768 61114 17876 131798 188508 1080...
output:
105649 1 162568 1 134603 1 58322 1 191921 1 88887 1 59095 1 148222 1 38293 1 184167 1 138084 1 78359 1 28181 1 68744 1 129730 1 54256 1 4839 1 148928 1 128678 1 172667 1 187248 1 173992 1 105401 1 171483 1 155850 1 58776 1 67992 1 114500 1 46721 1 184113 1 127341 1 21089 1 116864 1 54159 1 265 1 141...
result:
ok OK
Test #7:
score: 0
Accepted
time: 39ms
memory: 15596kb
input:
127669 148779 124640 77100 11865 117450 85144 68159 104241 39485 76372 84917 102044 56191 43704 26220 67216 31116 75749 123504 12078 92196 70006 15262 100591 74552 120537 38083 19281 29407 18707 6545 101149 25450 62271 9177 38892 6454 11709 119710 60867 89247 14037 9527 121858 66338 112298 81804 795...
output:
51131 1 118424 1 75272 1 20503 1 72713 1 60458 1 81378 1 51988 1 26994 1 52687 1 20162 1 40217 1 101545 1 44914 1 61634 1 67122 1 26911 1 12601 1 90310 1 17957 1 126232 1 17223 1 68434 1 88874 1 98799 1 107148 1 100458 1 33203 1 99283 1 44560 1 74476 1 98969 1 41088 1 105895 1 24879 1 2151 1 126743 ...
result:
ok OK
Test #8:
score: 0
Accepted
time: 38ms
memory: 18876kb
input:
150763 148757 108322 69862 125085 84513 111056 141009 36311 103205 31879 79919 62895 63377 21697 115522 113104 10277 106927 136657 52292 149020 7038 115111 112823 35584 124385 45429 96444 30523 149089 58103 139792 27250 15883 109949 69372 132387 141930 113408 65522 128254 138198 141969 42522 92075 1...
output:
81019 1 101125 1 78319 1 143178 1 121982 1 72301 1 77173 1 10609 1 16581 1 59616 1 117417 1 1671 1 51166 1 8706 1 25742 1 9880 1 127087 1 127950 1 91373 1 134208 1 66846 1 110346 1 146335 1 116234 1 61049 1 24700 1 32180 1 45923 1 8056 1 71425 1 29701 1 125750 1 126358 1 92090 1 136276 1 77972 1 888...
result:
ok OK
Test #9:
score: 0
Accepted
time: 13ms
memory: 11836kb
input:
53336 120203 26685 8244 50176 7825 31738 24370 25943 19902 11463 26861 29977 26309 14580 31754 1838 29437 30380 12118 51083 31633 1201 18328 26346 5295 48935 19027 31496 19906 41783 5048 47936 16685 5161 34107 15907 28002 332 27672 28930 39563 36429 31696 17876 726 42526 21682 35319 8727 17974 25252...
output:
3392 1 27581 1 25082 1 47475 1 44967 1 40512 1 42891 1 17694 1 40771 1 33725 1 20298 1 10999 1 3492 1 6400 1 32608 1 4466 1 17115 1 15738 1 10373 1 34595 1 14623 1 27715 1 8271 1 20720 1 24517 1 49996 1 26364 1 10638 1 20669 1 50111 1 24008 1 33805 1 50227 1 13460 1 10187 1 30349 1 30254 1 2220 1 40...
result:
ok OK
Test #10:
score: 0
Accepted
time: 11ms
memory: 8576kb
input:
17707 71661 1354 3272 13699 17294 16733 9246 14993 5758 7252 2983 3813 6121 10450 14069 8088 11201 857 4420 12788 2032 11938 1465 10322 15171 14688 1857 2309 2742 2013 13200 14142 16319 10541 1922 10368 1516 7994 9092 3327 5166 13484 2876 15472 13522 15622 13479 3361 15314 15464 14974 17637 7535 435...
output:
75 1 6755 1 15390 1 6226 1 1593 1 15854 1 7977 1 8990 1 5846 1 14567 1 12473 1 5505 1 5504 1 14057 1 17102 1 13333 1 13541 1 9878 1 6026 1190 14184 16576 5380 10029 4324 10897 13494 4002 15668 8594 10917 6971 7251 10895 16372 3683 8035 7286 5906 6137 7446 17330 12447 8043 8783 14464 2222 9674 9592 1...
result:
ok OK
Test #11:
score: 0
Accepted
time: 3ms
memory: 8316kb
input:
4294 17517 1175 3250 314 389 4272 3633 2938 1831 1307 2818 3321 347 1205 1428 2354 1478 1003 3898 1587 3443 1122 1512 2512 3995 348 3280 2064 1022 1834 2958 4281 1863 689 3613 2115 3708 1645 1488 1601 4181 916 4276 128 2626 4147 2868 87 1411 1802 1451 1254 2010 2936 3120 1065 277 1121 3284 3655 2849...
output:
29 1 2756 432 2354 2020 3803 3588 1780 186 800 2697 2503 2331 749 3934 3708 4289 2536 4198 990 1281 724 1851 2778 923 1631 2275 590 1434 3134 2645 1755 3874 3964 3362 198 2684 112 1415 874 115 3140 2349 3643 2958 2865 693 3059 1515 599 1745 3293 855 3469 918 2699 1670 4054 4070 488 1815 3126 2858 40...
result:
ok OK
Test #12:
score: 0
Accepted
time: 16ms
memory: 8788kb
input:
26686 105813 14774 5315 22701 21346 1398 13888 18566 18745 22298 6181 21347 10653 16500 23768 2329 5818 17512 16769 25519 338 12580 3064 19467 21665 3978 13202 23556 25178 195 9695 1472 13111 22925 24074 3026 13281 17666 14469 22007 18680 4159 13152 20431 23814 6671 10788 24433 13211 9794 12608 3264...
output:
137 1 23394 1 12475 1 2118 1 22100 1 10070 1 15273 1 26505 1 20785 1 6022 1 651 1 10917 1 371 1 8727 1 18510 1 12486 1 8793 1 5458 1 15559 1 22179 1 26437 1 8682 1 17160 1 5841 1 13843 1 18834 1 23868 1 6744 1 10300 1 1219 1 16355 1 1538 1 8709 1 24928 1 24377 1 2499 1 13345 1 2141 1 22401 1 25296 1...
result:
ok OK
Test #13:
score: 0
Accepted
time: 22ms
memory: 9012kb
input:
36033 148595 33366 22486 14414 23855 2694 30361 16352 31902 27993 2048 4707 31743 30610 12884 23278 27069 10529 20914 2030 30015 24554 15673 10184 29423 17825 20383 34077 1181 25518 26129 6355 8810 2857 21736 25108 34280 14992 24299 32649 20227 34529 10407 23194 29913 10451 319 34666 8904 30811 3003...
output:
150 1 2952 1 909 1 35383 1 10070 1 15933 1 206 1 7652 1 32601 1 26526 1 24825 1 2237 1 28026 1 2228 1 28914 1 29816 1 10445 1 26444 1 7683 1 20693 1 16543 1 31025 1 14407 7961 29067 12984 19863 13477 35926 30495 10253 32954 23324 24452 2242 32303 22219 17494 11207 33546 13832 10834 15506 23479 932 3...
result:
ok OK
Test #14:
score: 0
Accepted
time: 8ms
memory: 8740kb
input:
14868 57739 5724 2103 9214 3074 2269 531 3811 13162 5199 12632 6337 12078 12592 4977 3553 6975 5063 6622 1221 13056 4252 3705 7547 7879 1702 3685 4058 2503 7540 9423 4280 12228 574 6265 11876 2711 4805 7605 1468 4802 6921 1954 6350 2733 4429 5862 13549 14543 13809 5357 1509 11478 87 2676 6299 7060 1...
output:
80 1 13153 1 10106 1 8376 1 2754 1 12664 1 13378 1 1333 1 4879 1 11854 1 12071 1 4095 1 5231 1 5553 1 7206 1 11682 1 1040 1 9966 1 9596 1 1032 1 14047 1 5441 1 9447 1 3439 1 5188 1 9802 1 5162 1 13959 1 2698 1 150 1 1860 1 10345 1 9764 1 10402 1 84 1 10801 1 10861 1 4108 1 646 1 2470 1 14061 1 14058...
result:
ok OK
Test #15:
score: 0
Accepted
time: 1ms
memory: 7956kb
input:
53 43 32 44 25 10 24 49 20 28 28 44 16 12 37 48 46 36 30 47 25 3 17 31 19 17 29 42 25 44 30 3 31 21 2 34 42 12 22 50 12 52 39 10 0 46 29 1 12 21 3 0 11 31 42 25 4 51 26 36 19 48 39 26 5 21 7 41 29 34 38 47 29 8 26 17 42 46 36 20 39 30 13 27 28 31 27 24
output:
37 1 37 1 48 1 19 1 5 1 52 1 16 1 8 1 2 1 34 1 1 1 29 1 32 1 11 1 38 1 47 17 10 21 12 20 36 46 42 25 44 28 31 17 26 39 30 3 0 1 51 1 4 1 6 1 41 1 7 1 9 1 49 1 24 1 27 1 13 1 14 1 15 1 18 1 50 1 22 1 23 1 33 1 35 1 40 1 43 1 45
result:
ok OK
Test #16:
score: 0
Accepted
time: 1ms
memory: 6116kb
input:
70 21 39 34 29 33 38 53 37 7 47 64 47 17 65 66 60 39 37 47 19 68 14 28 39 41 52 55 0 60 59 16 11 40 11 33 35 26 0 11 24 17 26 43
output:
70 1 29 1 33 1 40 1 11 1 41 1 34 1 39 1 60 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 24 1 17 1 64 1 47 1 37 1 7 1 8 1 9 1 10 1 12 1 13 1 28 1 14 1 15 1 59 1 16 1 18 1 68 1 19 1 20 1 21 1 22 1 23 1 25 1 43 1 35 1 26 1 27 1 30 1 31 1 32 1 36 1 53 1 38 1 42 1 44 1 45 1 46 1 48 1 49 1 50 1 51 1 55 1 52 1 54 1 56 1 ...
result:
ok OK
Test #17:
score: 0
Accepted
time: 1ms
memory: 5824kb
input:
88 139 5 61 52 80 0 17 50 87 62 71 25 69 10 46 44 86 11 38 17 35 73 49 24 47 39 83 8 66 55 56 64 45 83 41 59 35 76 24 2 70 11 77 80 58 84 86 30 50 23 54 36 74 12 10 62 75 33 34 43 28 77 29 10 46 77 33 26 48 32 38 52 79 15 30 25 57 86 0 46 75 81 60 35 83 66 87 25 86 19 85 9 38 15 64 59 82 0 53 40 66 ...
output:
16 1 31 1 82 1 12 1 18 1 47 1 45 1 74 1 68 1 13 1 54 1 34 1 42 1 53 73 43 67 84 40 69 63 19 29 64 44 58 26 80 65 32 76 24 59 10 46 8 4 75 71 62 3 78 52 87 50 30 85 38 11 36 27 35 83 39 79 48 15 66 86 25 81 60 23 41 22 14 77 73 33 21 2 7 9 6 49 70 17 56 55 1 5 37 28 57 61 20 72 0 1 16 1 51
result:
ok OK
Test #18:
score: 0
Accepted
time: 1ms
memory: 5916kb
input:
53 185 48 40 23 7 45 7 6 42 13 6 45 1 18 28 47 14 11 15 27 9 50 44 23 47 20 27 18 19 2 19 18 49 32 49 9 12 11 0 32 49 22 14 8 48 41 28 30 43 4 21 7 22 28 30 17 11 19 30 44 7 46 8 50 45 35 48 29 47 4 26 16 39 37 25 38 12 19 52 28 41 23 31 33 34 6 15 44 24 0 6 26 22 49 43 4 31 20 38 43 39 41 39 51 40 ...
output:
3 16 7 23 31 45 4 22 47 44 26 5 50 29 14 1 24 21 20 12 20 3 51 10 46 35 48 27 38 6 15 11 40 9 42 13 17 8 0 17 32 33 30 16 41 37 34 28 19 36 39 52 49 25 18 43 2
result:
ok OK
Test #19:
score: 0
Accepted
time: 0ms
memory: 7864kb
input:
70 252 63 36 64 48 26 34 43 37 30 53 67 64 26 19 25 54 28 44 52 60 4 22 43 48 14 48 12 50 37 23 28 40 48 54 60 23 43 46 7 5 29 39 5 13 57 60 1 23 33 8 59 39 3 29 5 8 34 11 44 40 39 19 40 17 42 48 39 19 49 46 0 48 46 45 57 67 43 60 56 59 32 42 6 54 56 69 23 43 38 65 66 24 0 64 16 10 23 1 4 16 37 49 5...
output:
1 70 20 58 27 40 28 4 16 63 36 10 24 47 66 46 37 1 57 23 42 15 64 60 6 3 34 19 69 13 9 68 26 21 18 30 35 7 11 59 29 50 39 5 33 12 2 62 56 41 53 8 61 55 38 17 44 31 65 22 67 48 49 45 43 14 54 51 32 25 52 0
result:
ok OK
Test #20:
score: 0
Accepted
time: 1ms
memory: 7888kb
input:
88 390 74 40 14 37 44 66 7 49 12 4 39 48 56 76 46 40 80 30 5 39 52 0 40 79 0 11 34 41 43 80 54 62 61 41 54 37 31 81 59 66 23 59 47 84 16 85 68 29 31 63 4 55 27 5 26 68 14 84 16 34 82 16 62 54 46 15 65 63 58 83 5 36 67 19 65 42 35 25 82 73 55 59 28 36 22 38 46 79 61 34 51 40 69 42 36 5 26 38 86 14 22...
output:
3 6 48 60 39 5 27 36 6 9 76 56 33 77 20 76 42 71 85 16 34 57 41 61 82 2 72 30 80 43 1 73 66 59 44 4 23 55 53 12 26 68 22 38 29 51 40 17 79 74 46 15 3 18 70 83 58 21 32 35 87 25 19 67 81 13 31 8 63 65 69 10 62 37 54 47 78 84 14 7 28 86 24 64 6 50 49 11 75 45 52 0
result:
ok OK