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 |
---|---|---|---|---|---|---|---|---|---|
#174192 | #6634. Central Subset | Klaus26# | WA | 260ms | 24332kb | C++20 | 1.3kb | 2023-09-10 05:15:32 | 2023-09-10 05:15:33 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "../debug.h"
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
const int N = 2e5+10;
vector<int> g[N];
int vis[N];
int dis[N];
int test;
int n, m, lim;
void cl(){
test = 0;
for(int i=1; i<=n; i++){
g[i].clear();
vis[i] = 0;
}
}
void bfs(int root){
test++;
queue<int> q;
q.push(root);
dis[root] = 0;
vis[root] = test;
while(q.size()){
int u = q.front();
q.pop();
for(auto& v : g[u]){
if(vis[v] == test)continue;
vis[v] = test;
dis[v] = dis[u] + 1;
if(dis[v] == lim)continue;
q.push(v);
}
}
}
int main(){
ios_base::sync_with_stdio(0); cin.tie(0);
int T;
cin>>T;
while(T--){
cin>>n>>m;
lim = sqrt(n);
while(true){
if(lim * lim >= n )break;
lim++;
}
debug(lim);
for(int i=0; i<m; i++){
int u, v;
cin>>u>>v;
g[u].push_back(v);
g[v].push_back(u);
}
vector<int> ans;
for(int i=1; i<=n; i++){
if(vis[i])continue;
ans.push_back(i);
bfs(i);
}
if(ans.size() > lim){
cout<<-1<<'\n';
}
cout<<ans.size()<<'\n';
for(auto& i : ans) cout<<i<<' ';
cout<<'\n';
cl();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 2ms
memory: 8632kb
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 1 1
result:
ok correct (2 test cases)
Test #2:
score: 0
Accepted
time: 11ms
memory: 9148kb
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 3 1 7 15 1 1 4 1 7 13 19 2 1 6 2 1 6 2 1 11 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 9 11 2 1 6 3 1 10 13 1 1 2 1 5 3 1 6 7 2 1 6 3 1 9 15 1 1 3 1 6 11 ...
result:
ok correct (10000 test cases)
Test #3:
score: 0
Accepted
time: 15ms
memory: 8264kb
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 22 1 47 93 139 185 231 277 323 369 415 461 507 553 599 645 691 737 783 829 875 921 967 8 1 638 6...
result:
ok correct (100 test cases)
Test #4:
score: 0
Accepted
time: 14ms
memory: 10056kb
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: 31ms
memory: 9040kb
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:
9 1 4006 4016 13671 13682 17285 17319 19661 19995 7 1 9135 9160 9171 9177 14361 17848 9 1 5337 6552 6763 13217 14775 14795 15576 19860 7 1 4127 14477 15019 16068 17011 19143 9 1 8423 8436 8706 10940 14487 15380 16534 19387 7 1 7958 8051 11972 13363 16501 17612 8 1 7040 7058 7088 9311 14155 141...
result:
ok correct (10 test cases)
Test #6:
score: 0
Accepted
time: 61ms
memory: 15972kb
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: 49ms
memory: 16000kb
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:
223 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 #8:
score: 0
Accepted
time: 64ms
memory: 16008kb
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:
9 1 86623 102973 122780 122848 126257 149437 173252 199789
result:
ok correct (1 test case)
Test #9:
score: 0
Accepted
time: 5ms
memory: 8372kb
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:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 2 7 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 2 1 26 1 1 2 1 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 9 34 1 1 1 1 1 1 1 1 1 1 1 1 3 1 2 6 1 1 1 1 3 1 15 19 2 1 19 1 1 1 1 1 1 1 1 1 1 1 1 2 1...
result:
ok correct (1000 test cases)
Test #10:
score: 0
Accepted
time: 4ms
memory: 9768kb
input:
100 76 104 30 11 26 40 4 59 35 21 13 44 3 73 25 39 33 35 63 9 9 19 42 47 22 32 44 35 74 68 53 12 50 41 53 52 69 40 31 49 21 14 23 21 11 48 53 67 48 74 15 24 73 47 6 62 17 33 67 48 7 22 68 46 41 39 20 1 9 71 15 67 65 56 38 68 30 9 54 26 8 47 62 56 14 61 59 20 46 64 75 46 50 49 26 25 10 70 36 27 14 29...
output:
2 1 31 1 1 1 1 1 1 1 1 1 1 3 1 2 25 1 1 1 1 2 1 16 2 1 18 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 4 1 13 26 45 1 1 1 1 1 1 4 1 2 24 35 1 1 2 1 8 1 1 3 1 3 18 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 10 11 1 1 1 1 1 1 2 1 19...
result:
ok correct (100 test cases)
Test #11:
score: 0
Accepted
time: 238ms
memory: 24332kb
input:
1 100000 1000000 70376 68374 69858 95507 48028 59467 27775 34161 858 86059 31468 25048 21313 82671 10952 18093 89665 50624 52742 11128 33566 41507 25913 22268 72131 67543 31387 42274 37347 75248 88261 56182 98982 47735 90574 62875 51228 53905 25218 4567 78201 22017 59613 68982 37239 43727 67620 9064...
output:
1 1
result:
ok correct (1 test case)
Test #12:
score: 0
Accepted
time: 56ms
memory: 15952kb
input:
1 200000 200000 89381 101645 141954 180063 180085 158544 12185 82120 161570 175869 36911 151360 49966 148400 135100 143084 145185 33970 82150 111213 93727 145916 42620 157053 26848 66273 178649 76101 5033 162413 173225 34259 30781 78979 9908 187256 87177 127185 7086 26040 178611 119947 198142 154140...
output:
329 1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 28 29 30 33 34 35 36 37 38 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 59 60 61 62 63 65 66 67 69 70 71 72 76 80 81 84 85 86 87 89 90 92 93 95 97 99 101 102 104 105 107 108 109 110 113 114 115 116 118 119 124 134 136 137 1...
result:
ok correct (1 test case)
Test #13:
score: 0
Accepted
time: 260ms
memory: 15960kb
input:
1 199809 199808 197381 136472 136472 160228 160228 128766 128766 197225 197225 160133 160133 105707 105707 66465 66465 199512 199512 185463 185463 176514 176514 175293 175293 178768 178768 158873 158873 199518 199518 161400 161400 172476 172476 188761 188761 197795 197795 152286 152286 177332 177332...
output:
446 1 4 6 8 10 14 15 16 19 20 21 26 27 33 40 42 44 45 51 55 59 61 62 64 83 84 88 93 94 97 98 102 109 113 116 120 123 124 125 128 132 133 137 139 142 149 151 152 157 165 166 173 176 183 192 203 204 205 207 227 230 235 236 237 245 249 251 259 263 266 269 271 273 279 282 294 298 300 312 323 327 332 354...
result:
ok correct (1 test case)
Test #14:
score: 0
Accepted
time: 18ms
memory: 9768kb
input:
200 961 1663 2 1 3 1 3 20 4 1 4 7 5 1 5 41 5 60 6 1 7 1 7 49 8 1 9 1 10 1 11 1 12 1 12 32 13 1 13 59 14 1 14 3 15 1 15 12 15 52 16 1 16 12 16 63 17 1 17 10 18 1 18 36 19 1 19 26 19 29 20 1 20 60 20 63 21 1 22 1 23 1 23 3 23 27 23 39 24 1 25 1 26 1 26 58 26 60 27 1 27 22 27 36 28 1 29 1 30 1 31 1 31 ...
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 ...
result:
ok correct (200 test cases)
Test #15:
score: 0
Accepted
time: 20ms
memory: 14764kb
input:
1 160000 159999 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 5...
output:
2 1 801
result:
ok correct (1 test case)
Test #16:
score: 0
Accepted
time: 38ms
memory: 12492kb
input:
1 1000 499500 605 964 559 738 492 518 943 284 96 23 214 486 487 262 347 436 394 422 270 113 984 149 134 203 881 328 316 643 610 922 802 67 903 194 600 584 629 62 692 370 420 442 600 563 438 452 556 785 112 809 555 241 937 635 178 746 67 900 777 247 490 842 971 12 315 60 703 467 201 13 872 503 24 201...
output:
1 1
result:
ok correct (1 test case)
Test #17:
score: -100
Wrong Answer
time: 21ms
memory: 8896kb
input:
4081 49 48 39 7 7 45 45 25 25 31 31 26 26 4 4 11 4 19 4 37 4 8 4 16 4 22 4 33 11 14 39 6 6 12 12 46 46 49 49 48 48 29 29 27 39 41 41 15 15 34 34 24 39 3 3 13 13 20 20 47 39 9 9 36 36 5 5 43 39 40 40 21 21 2 2 38 39 35 35 42 42 23 23 28 39 1 1 32 32 10 10 17 39 30 30 18 18 44 49 48 37 29 29 33 33 19 ...
output:
3 1 8 27 3 1 2 9 2 1 12 3 1 6 41 3 1 4 7 -1 8 1 3 13 24 32 36 42 45 2 1 8 2 1 25 3 1 3 10 3 1 3 4 3 1 3 48 -1 8 1 4 9 21 33 34 40 49 3 1 3 44 -1 8 1 2 3 5 11 16 32 49 -1 8 1 9 10 17 24 25 35 37 2 1 4 3 1 5 32 3 1 5 10 3 1 2 4 3 1 2 3 3 1 5 6 3 1 2 18 3 1 3 27 3 1 2 21 3 1 3 1...
result:
wrong answer Integer -1 violates the range [1, 7] (test case 6)