QOJ.ac
QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#135175 | #6634. Central Subset | wtn135687# | WA | 74ms | 28696kb | C++14 | 1.0kb | 2023-08-05 12:27:16 | 2023-08-05 12:27:21 |
Judging History
answer
#include<bits/stdc++.h>
#define pll pair<ll, ll>
using namespace std;
typedef long long ll;
#define int ll
const int N = 2e5+10;
const int M = 1e6 + 7;
int n, m, fa[N], mx;
vector<ll> edge[N], ans;
bool vis[N];
void init(){
for (int i = 0; i <= n; i++)fa[i] = i, edge[i].clear(),vis[i]=0;
ans.clear();
mx = sqrt(n);
if (mx * mx < n)mx++;
}
int dfs(int u,int dis){
if(dis>mx){
ans.push_back(u);
dis=0;
}
for(int v:edge[u]){
if(vis[v])continue;
vis[v]=1;
dis=min(dfs(v,dis+1),dis);
}
return dis+1;
}
inline void solve(){
cin >> n >> m;
init();
for (int i = 1, u, v; i <= m; i++){
cin >> u >> v;
edge[u].push_back(v);
edge[v].push_back(u);
}
ans.push_back(1);
dfs(1,0);
cout<<ans.size()<<"\n";for(int i:ans)cout<<i<<" ";cout<<"\n";
}
signed main(){
ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
int WTN666=1;cin>>WTN666;
while(WTN666--){
solve();
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 9692kb
input:
2 4 3 1 2 2 3 3 4 6 7 1 2 2 3 3 1 1 4 4 5 5 6 6 4
output:
2 1 4 2 1 5
result:
ok correct (2 test cases)
Test #2:
score: 0
Accepted
time: 10ms
memory: 8612kb
input:
10000 15 14 13 12 5 4 9 8 11 12 15 14 10 9 14 13 2 3 2 1 6 5 10 11 3 4 7 6 8 7 6 5 2 1 2 4 4 6 2 3 3 5 10 9 8 3 9 4 5 6 5 10 3 2 5 4 2 7 1 2 4 3 2 1 2 1 2 1 2 1 9 8 9 8 5 4 1 2 6 5 3 4 3 2 7 8 7 6 2 1 1 2 14 13 3 10 5 6 2 9 11 4 2 3 2 1 8 7 13 6 5 4 5 12 6 7 4 3 7 14 16 15 2 3 2 1 6 10 6 9 6 4 9 11 ...
output:
3 1 6 11 1 1 2 1 6 1 1 1 1 3 1 5 9 1 1 2 1 6 2 1 10 1 1 4 1 7 13 19 2 1 6 2 1 10 2 1 13 1 1 3 1 6 11 1 1 1 1 2 1 9 1 1 2 1 4 2 1 6 2 1 6 2 1 13 1 1 3 1 6 11 1 1 2 1 6 1 1 1 1 4 1 7 13 19 3 1 11 13 2 1 6 3 1 11 12 1 1 2 1 5 3 1 6 7 2 1 6 3 1 10 14 1 1 3 1 6 11 ...
result:
ok correct (10000 test cases)
Test #3:
score: 0
Accepted
time: 18ms
memory: 8564kb
input:
100 2000 1999 529 528 885 884 1221 1222 375 374 245 244 758 757 711 710 1521 1522 1875 1874 749 750 823 822 1959 1958 1767 1766 155 154 631 632 825 824 1330 1331 457 456 1344 1343 1817 1818 413 414 582 583 1828 1827 1335 1336 654 655 162 161 1668 1667 1966 1967 1472 1471 1185 1184 518 517 1509 1510 ...
output:
44 1 47 93 139 185 231 277 323 369 415 461 507 553 599 645 691 737 783 829 875 921 967 1013 1059 1105 1151 1197 1243 1289 1335 1381 1427 1473 1519 1565 1611 1657 1703 1749 1795 1841 1887 1933 1979 1 1 23 1 47 1092 137 183 1228 273 319 1364 409 455 1500 545 1590 1634 1678 723 1768 813 859 905 951 9...
result:
ok correct (100 test cases)
Test #4:
score: 0
Accepted
time: 18ms
memory: 10164kb
input:
10 14914 14913 13959 13958 3643 3642 4582 4581 13378 13379 981 980 12901 12902 12355 12356 14692 14691 9670 9669 14632 14631 1441 1440 1367 1368 6237 6238 8297 8298 1021 1020 5096 5097 4773 4774 7778 7779 3013 3014 5536 5535 11621 11620 13904 13903 3050 3049 14179 14178 7471 7472 13380 13381 7403 74...
output:
121 1 125 249 373 497 621 745 869 993 1117 1241 1365 1489 1613 1737 1861 1985 2109 2233 2357 2481 2605 2729 2853 2977 3101 3225 3349 3473 3597 3721 3845 3969 4093 4217 4341 4465 4589 4713 4837 4961 5085 5209 5333 5457 5581 5705 5829 5953 6077 6201 6325 6449 6573 6697 6821 6945 7069 7193 7317 7441 75...
result:
ok correct (10 test cases)
Test #5:
score: 0
Accepted
time: 30ms
memory: 9548kb
input:
10 20000 19999 6831 6760 15763 15900 10362 10184 5821 5880 17555 17389 16708 16574 11592 11436 186 209 19380 19313 8867 8718 12100 12237 16245 16110 18464 18568 4713 4665 17412 17578 18666 18750 4360 4322 12350 12502 4054 4103 2874 2849 8097 8202 14489 14639 1056 1016 13500 13581 2435 2391 199 173 8...
output:
6 1 4027 15759 16722 15745 4014 9 1 9171 9184 18169 18123 19879 14324 9164 9159 7 1 5363 6776 6552 13220 14811 14785 5 1 4127 15038 16066 14485 8 1 8448 8715 15078 19952 8424 14542 19333 7 1 7984 11988 13362 8097 17207 16494 7 1 7050 7061 7093 14155 14203 18939 8 1 5804 17984 17993 13752 5878...
result:
ok correct (10 test cases)
Test #6:
score: 0
Accepted
time: 48ms
memory: 28696kb
input:
1 200000 199999 136649 136648 44943 44944 7148 7149 50332 50333 149967 149966 28976 28975 78549 78550 178698 178697 96434 96433 7859 7858 88976 88977 23348 23347 161682 161681 125393 125392 67892 67893 73592 73593 179054 179055 110841 110842 163714 163715 7982 7981 56309 56310 196486 196485 19176 19...
output:
446 1 450 899 1348 1797 2246 2695 3144 3593 4042 4491 4940 5389 5838 6287 6736 7185 7634 8083 8532 8981 9430 9879 10328 10777 11226 11675 12124 12573 13022 13471 13920 14369 14818 15267 15716 16165 16614 17063 17512 17961 18410 18859 19308 19757 20206 20655 21104 21553 22002 22451 22900 23349 23798 ...
result:
ok correct (1 test case)
Test #7:
score: 0
Accepted
time: 57ms
memory: 24776kb
input:
1 200000 199999 58280 58281 132016 32016 45157 45158 35446 35445 158979 58979 185831 85831 74289 174289 195645 95645 31857 131857 168766 68766 95607 95606 39817 39818 58215 158215 74893 74894 18897 118897 63013 163013 58501 58502 94475 194475 77574 77573 152977 52977 3731 103731 20407 20408 186570 8...
output:
224 1 450 100898 1346 1795 2244 102692 103139 3587 4036 4485 4934 5383 5832 6281 106729 7177 107625 108072 8520 8969 9418 109866 110313 110760 11208 11657 112105 112552 13000 113448 13896 14345 114793 15241 115689 116136 16584 17033 17482 117930 18378 118826 19274 119722 120169 120616 21064 121512 2...
result:
ok correct (1 test case)
Test #8:
score: 0
Accepted
time: 74ms
memory: 17288kb
input:
1 200000 199999 84088 84001 74829 74679 40726 41179 113019 113238 112813 113025 77336 77177 60908 61208 4521 4639 144249 144094 102763 102692 112856 113070 2428 2356 114005 113754 168454 168270 114538 114311 36802 36341 170182 170306 31641 32012 92503 92395 143570 143702 6871 6715 51503 51997 140883...
output:
8 1 86647 110748 151202 172839 129376 175544 199270
result:
ok correct (1 test case)
Test #9:
score: -100
Wrong Answer
time: 6ms
memory: 9644kb
input:
1000 11 19 8 11 4 11 2 11 2 3 8 3 6 1 6 4 11 5 5 3 10 8 7 10 4 7 3 9 5 1 5 7 3 6 10 1 11 7 2 9 70 109 32 69 26 15 65 46 70 62 50 23 17 16 15 31 2 23 18 11 48 57 19 29 52 42 26 31 7 1 53 66 5 69 58 20 59 38 3 4 9 53 7 56 52 66 66 28 22 51 2 6 22 35 5 28 25 51 27 13 26 56 10 50 53 56 60 48 67 33 61 23...
output:
2 1 8 6 1 32 27 61 70 33 3 1 11 13 6 1 32 14 37 71 39 6 1 3 31 47 1 41 4 1 10 12 6 5 1 24 20 18 19 5 1 33 21 23 22 4 1 81 21 19 7 1 81 41 70 27 7 63 3 1 13 21 6 1 15 68 17 33 69 2 1 3 5 1 10 17 41 1 4 1 20 43 23 2 1 12 2 1 8 2 1 4 6 1 38 8 46 11 26 6 1 46 19 51 45 43 4 1 19 18 22...
result:
wrong answer Condition failed: "subset.size() == sz" (test case 5)