QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#132400 | #6329. Colorful Graph | UrgantTeam# | WA | 6073ms | 16772kb | C++23 | 3.5kb | 2023-07-29 20:01:18 | 2023-07-29 20:01:21 |
Judging History
answer
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include<bits/stdc++.h>
using namespace std;
mt19937 rnd(time(0));
int const maxn = 7005;
vector < int > g[maxn], G[maxn], ts, go[maxn], res[2 * maxn];
int used[2 * maxn], cmp, numb[maxn], bad;
vector < int > in[maxn];
bitset < maxn > Gz[maxn];
int one[maxn], two[maxn], out[maxn];
bitset < maxn > free_righ, USED;
void answer(int v, int mx, int cmp) {
used[v] = bad;
if (v <= cmp) {
for (auto key : in[v]) out[key] = mx;
}
for (auto key : res[v]) {
if (used[key] != bad) answer(key, mx, cmp);
}
}
void dfs1(int v) {
used[v] = 2, numb[v] = cmp, in[cmp].push_back(v);
for (auto u : g[v]) {
if (used[u] == 1) {
dfs1(u);
} else if (numb[u] != cmp) {
go[cmp].push_back(numb[u]);
}
}
}
void dfs(int v) {
used[v] = 1;
for (auto u : G[v]) if (!used[u]) dfs(u);
ts.push_back(v);
}
void dfs2(int v, int start) {
used[v] = bad;
if (v != start) Gz[start][v] = 1;
for (auto u : go[v]) {
if (used[u] != bad) dfs2(u, start);
}
}
bool calc(int v) {
used[v] = bad;
int pos = (Gz[v]&free_righ)._Find_first();
if (pos <= cmp) {
one[v] = pos, two[pos] = v, free_righ[pos] = 0;
return true;
}
for (int u = Gz[v]._Find_first(); u <= cmp; u = Gz[v]._Find_next(u)) {
if (used[two[u]] != bad && calc(two[u])) {
one[v] = u, two[u] = v;
return true;
}
}
return false;
}
main() {
#ifdef HOME
freopen("input.txt", "r", stdin);
#endif // HOME
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n, m, u, v;
cin >> n >> m;
for (int i = 1; i <= m; i++) {
cin >> u >> v;
g[u].push_back(v);
G[v].push_back(u);
}
for (int i = 1; i <= n; i++) if (!used[i]) dfs(i);
reverse(ts.begin(), ts.end());
for (auto key : ts) {
if (used[key] != 2) {
cmp++;
dfs1(key);
}
}
bad = 2;
for (int i = 1; i <= cmp; i++) {
bad++;
dfs2(i, i);
}
int find = 1;
for (int i = 1; i <= cmp; i++) free_righ[i] = 1;
vector < int > Q;
for (int i = 1; i <= cmp; i++) {
int ok = 0;
for (int j = 1; j <= cmp; j++) {
if (Gz[i][j] || Gz[j][i]) {
ok = 1;
break;
}
}
if (ok) Q.push_back(i);
}
shuffle(Q.begin(), Q.end(), rnd);
for (auto i : Q) {
for (auto j : Q) {
if (Gz[i][j] && !one[i] && !two[j]) {
one[i] = j, two[j] = i, free_righ[j] = 0;
}
}
}
while (find) {
if (1.0 * clock() / CLOCKS_PER_SEC > 6) break;
find = 0;
bad++;
for (auto i : Q) {
if (used[i] != bad && !one[i] && calc(i)) {
find = 1;
}
}
}
int mx = 0;
bad++;
for (int i = 1; i <= cmp; i++) {
if (one[i]) res[i].push_back(one[i] + cmp), res[one[i] + cmp].push_back(i);
res[i].push_back(i + cmp), res[i + cmp].push_back(i);
}
for (int i = 1; i <= cmp; i++) {
if (used[i] != bad) {
mx++;
answer(i, mx, cmp);
}
}
for (int i = 1; i <= n; i++) cout << out[i] << " ";
cout << '\n';
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 6212kb
input:
5 5 1 4 2 3 1 3 2 5 5 1
output:
2 2 2 1 2
result:
ok AC
Test #2:
score: 0
Accepted
time: 2ms
memory: 5848kb
input:
5 7 1 2 2 1 4 3 5 1 5 4 4 1 4 5
output:
2 2 1 2 2
result:
ok AC
Test #3:
score: 0
Accepted
time: 2ms
memory: 6580kb
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: 519ms
memory: 16772kb
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:
615 20 1528 1504 1543 1648 1030 949 1034 1750 1490 28 1696 1312 1429 165 1749 1533 359 1748 818 1747 1489 920 1353 643 419 940 1574 410 1746 459 163 1519 314 625 1745 333 464 1261 1744 1358 378 1743 255 1742 267 252 464 86 646 1483 1741 261 1730 1740 431 49 1739 1243 437 1233 1179 1529 1738 424 177 ...
result:
ok AC
Test #5:
score: 0
Accepted
time: 374ms
memory: 15840kb
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:
1703 2070 2333 2332 2331 1358 2330 2329 1614 1371 1736 1010 55 2328 1611 1258 864 1110 634 2327 1476 2326 2325 2324 513 2212 2323 2322 2321 2320 2319 1154 10 1048 1249 339 2318 1303 2317 2316 1033 2315 2314 176 2313 1539 2312 1223 675 2311 2310 2309 2308 2307 2306 283 1071 2250 892 1036 1733 118 988...
result:
ok AC
Test #6:
score: 0
Accepted
time: 177ms
memory: 11700kb
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:
670 936 2333 2332 1899 149 2331 2330 2329 1214 225 551 658 1222 905 2328 2295 2327 2326 2325 1034 1887 1707 2324 1846 2323 533 2322 1956 571 2321 2137 2320 805 2319 2249 334 2318 2317 1706 587 2316 2315 1674 486 1827 1926 2314 834 2200 2313 1796 2312 2311 101 2310 809 1286 2309 587 2271 350 1200 230...
result:
ok AC
Test #7:
score: 0
Accepted
time: 193ms
memory: 12136kb
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:
1625 1307 315 121 805 326 459 1440 1750 1704 233 971 698 137 283 1749 1748 372 1348 1033 1747 1695 1746 1745 1744 1743 1742 1741 31 1649 1747 933 933 758 368 1347 1740 1739 1685 1738 1151 1573 1737 1446 307 1328 1000 1088 4 518 1638 432 1519 729 712 1130 1363 850 1736 1188 1508 1004 88 1735 1573 160...
result:
ok AC
Test #8:
score: 0
Accepted
time: 65ms
memory: 9324kb
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:
3026 1229 2494 2851 3499 1128 2840 3498 3497 3496 3495 3494 2005 3493 2969 1727 2273 3492 3348 799 3491 1032 801 3490 1265 2700 3217 2539 2698 3489 2343 3488 2069 3141 3487 3427 3486 3485 2114 3484 3483 2284 1782 3482 3481 1242 568 3338 1650 171 3480 3479 3478 2212 3477 3476 935 242 2487 594 2541 34...
result:
ok AC
Test #9:
score: 0
Accepted
time: 38ms
memory: 7032kb
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: -100
Wrong Answer
time: 6073ms
memory: 15920kb
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:
20 31 33 101 17 46 103 40 8 9 31 91 87 128 37 23 64 77 21 15 101 100 53 82 21 4 130 14 44 90 80 103 65 47 65 75 33 83 43 16 73 39 36 7 96 84 129 55 69 26 38 126 30 45 21 11 8 22 26 25 61 18 94 44 131 42 114 68 66 9 93 22 8 8 96 45 24 132 38 124 92 8 123 10 107 67 119 16 116 78 79 83 5 42 8 16 69 74 ...
result:
wrong answer Integer 20 violates the range [1, 1]