Task: | Toll Roads |
Sender: | zxc |
Submission time: | 2016-07-29 16:31:26 +0300 |
Language: | C++ |
Status: | READY |
Result: | 0 |
group | verdict | score |
---|---|---|
#1 | WRONG ANSWER | 0 |
test | verdict | time | |
---|---|---|---|
#1 | ACCEPTED | 0.06 s | details |
#2 | ACCEPTED | 0.06 s | details |
#3 | ACCEPTED | 0.05 s | details |
#4 | WRONG ANSWER | 0.05 s | details |
#5 | WRONG ANSWER | 0.05 s | details |
#6 | ACCEPTED | 0.05 s | details |
#7 | WRONG ANSWER | 0.06 s | details |
#8 | WRONG ANSWER | 0.06 s | details |
#9 | ACCEPTED | 0.06 s | details |
#10 | WRONG ANSWER | 0.05 s | details |
#11 | ACCEPTED | 0.05 s | details |
#12 | ACCEPTED | 0.05 s | details |
#13 | WRONG ANSWER | 0.06 s | details |
#14 | ACCEPTED | 0.06 s | details |
#15 | WRONG ANSWER | 0.06 s | details |
#16 | ACCEPTED | 0.05 s | details |
#17 | WRONG ANSWER | 0.05 s | details |
#18 | WRONG ANSWER | 0.06 s | details |
#19 | ACCEPTED | 0.05 s | details |
#20 | ACCEPTED | 0.06 s | details |
#21 | WRONG ANSWER | 0.05 s | details |
#22 | WRONG ANSWER | 0.05 s | details |
#23 | WRONG ANSWER | 0.06 s | details |
#24 | ACCEPTED | 0.06 s | details |
#25 | ACCEPTED | 0.05 s | details |
#26 | ACCEPTED | 0.06 s | details |
#27 | ACCEPTED | 0.05 s | details |
#28 | WRONG ANSWER | 0.09 s | details |
#29 | RUNTIME ERROR | 0.14 s | details |
#30 | RUNTIME ERROR | 0.15 s | details |
#31 | RUNTIME ERROR | 0.13 s | details |
#32 | RUNTIME ERROR | 0.15 s | details |
#33 | RUNTIME ERROR | 0.13 s | details |
#34 | RUNTIME ERROR | 0.16 s | details |
#35 | RUNTIME ERROR | 0.14 s | details |
#36 | RUNTIME ERROR | 0.16 s | details |
#37 | RUNTIME ERROR | 0.15 s | details |
#38 | RUNTIME ERROR | 0.15 s | details |
#39 | RUNTIME ERROR | 0.13 s | details |
#40 | RUNTIME ERROR | 0.15 s | details |
#41 | WRONG ANSWER | 0.09 s | details |
#42 | RUNTIME ERROR | 0.15 s | details |
#43 | RUNTIME ERROR | 0.12 s | details |
#44 | RUNTIME ERROR | 0.15 s | details |
#45 | RUNTIME ERROR | 0.15 s | details |
#46 | RUNTIME ERROR | 0.15 s | details |
#47 | RUNTIME ERROR | 0.14 s | details |
#48 | RUNTIME ERROR | 0.12 s | details |
#49 | RUNTIME ERROR | 0.15 s | details |
#50 | RUNTIME ERROR | 0.14 s | details |
#51 | RUNTIME ERROR | 0.16 s | details |
#52 | RUNTIME ERROR | 0.14 s | details |
#53 | RUNTIME ERROR | 0.15 s | details |
#54 | ACCEPTED | 0.07 s | details |
#55 | RUNTIME ERROR | 0.14 s | details |
#56 | RUNTIME ERROR | 0.13 s | details |
#57 | RUNTIME ERROR | 0.13 s | details |
#58 | RUNTIME ERROR | 0.14 s | details |
#59 | RUNTIME ERROR | 0.15 s | details |
#60 | RUNTIME ERROR | 0.15 s | details |
#61 | RUNTIME ERROR | 0.15 s | details |
#62 | RUNTIME ERROR | 0.14 s | details |
#63 | RUNTIME ERROR | 0.15 s | details |
#64 | RUNTIME ERROR | 0.13 s | details |
#65 | RUNTIME ERROR | 0.15 s | details |
#66 | RUNTIME ERROR | 0.14 s | details |
#67 | RUNTIME ERROR | 0.16 s | details |
#68 | RUNTIME ERROR | 0.12 s | details |
#69 | RUNTIME ERROR | 0.15 s | details |
#70 | RUNTIME ERROR | 0.15 s | details |
#71 | WRONG ANSWER | 0.05 s | details |
#72 | ACCEPTED | 0.06 s | details |
Code
#include <bits/stdc++.h> #define F first #define S second using namespace std; vector<int> v[444]; bool used[444]; pair<int, pair<int, pair<int, int> > > ans = {1e9, {1e9, {0, 0}}}; set<pair<int, int> > lol; int f(int x, int y) { used[x] = 1; if(x == y) return 1; for(auto z: v[x]) { if(!used[z]) { int q = f(z, y); if(q) lol.insert({x, z}); if(q) lol.insert({z, x}); if(q) return q+1; } } return 0; } pair<int, int> qwe; void f2(int x, int d) { used[x] = 1; qwe = max(qwe, {d, x}); for(auto y: v[x]) { if(!used[y]) { f2(y, d+!lol.count({x, y})); } } } int main() { int n,k; cin>>n>>k; for(int i = 0; i < n-1; ++i) { int a,b; cin>>a>>b; v[a].push_back(b); v[b].push_back(a); } for(int i = 0; i < n; ++i) { for(int j = i; j < n; ++j) { memset(used, 0, sizeof used); lol.clear(); int d = f(i, j)-1; qwe = {0, 0}; memset(used, 0, sizeof used); f2(0, 0); auto q2 = qwe; memset(used, 0, sizeof used); f2(q2.S, 0); ans = min(ans, {qwe.F, {d, {i, j}}}); } } cout<<ans.F<<'\n'; cout<<ans.S.F<<'\n'; if(ans.S.F > 0) { cout<<ans.S.S.F<<' '<<ans.S.S.S<<'\n'; } }
Test details
Test 1
Verdict: ACCEPTED
input |
---|
8 3 0 2 0 5 2 3 5 1 ... |
correct output |
---|
2 3 2 6 |
user output |
---|
2 3 2 6 |
Test 2
Verdict: ACCEPTED
input |
---|
5 2 0 1 0 2 0 3 0 4 |
correct output |
---|
2 0 |
user output |
---|
2 0 |
Test 3
Verdict: ACCEPTED
input |
---|
2 1 0 1 |
correct output |
---|
0 1 0 1 |
user output |
---|
0 1 0 1 |
Test 4
Verdict: WRONG ANSWER
input |
---|
3 1 0 1 2 1 |
correct output |
---|
1 1 0 1 |
user output |
---|
0 2 0 2 |
Test 5
Verdict: WRONG ANSWER
input |
---|
3 1 0 2 1 2 |
correct output |
---|
1 1 0 2 |
user output |
---|
0 2 0 1 |
Test 6
Verdict: ACCEPTED
input |
---|
3 2 0 2 1 2 |
correct output |
---|
0 2 0 1 |
user output |
---|
0 2 0 1 |
Test 7
Verdict: WRONG ANSWER
input |
---|
4 1 0 3 0 1 3 2 |
correct output |
---|
2 1 0 3 |
user output |
---|
0 3 1 2 |
Test 8
Verdict: WRONG ANSWER
input |
---|
4 2 0 3 0 1 3 2 |
correct output |
---|
1 2 0 2 |
user output |
---|
0 3 1 2 |
Test 9
Verdict: ACCEPTED
input |
---|
4 3 0 3 0 1 3 2 |
correct output |
---|
0 3 1 2 |
user output |
---|
0 3 1 2 |
Test 10
Verdict: WRONG ANSWER
input |
---|
4 1 0 1 0 2 0 3 |
correct output |
---|
2 0 |
user output |
---|
1 2 1 2 |
Test 11
Verdict: ACCEPTED
input |
---|
4 2 0 1 0 2 0 3 |
correct output |
---|
1 2 1 2 |
user output |
---|
1 2 1 2 |
Test 12
Verdict: ACCEPTED
input |
---|
4 3 0 1 0 2 0 3 |
correct output |
---|
1 2 1 2 |
user output |
---|
1 2 1 2 |
Test 13
Verdict: WRONG ANSWER
input |
---|
6 3 0 1 0 2 0 3 2 4 ... |
correct output |
---|
2 2 2 3 |
user output |
---|
1 4 4 5 |
Test 14
Verdict: ACCEPTED
input |
---|
6 3 0 1 0 2 0 3 2 4 ... |
correct output |
---|
2 1 0 2 |
user output |
---|
2 1 0 2 |
Test 15
Verdict: WRONG ANSWER
input |
---|
8 5 0 1 1 2 2 3 0 4 ... |
correct output |
---|
2 4 2 5 |
user output |
---|
1 6 3 6 |
Test 16
Verdict: ACCEPTED
input |
---|
2 1 0 1 |
correct output |
---|
0 1 0 1 |
user output |
---|
0 1 0 1 |
Test 17
Verdict: WRONG ANSWER
input |
---|
3 1 2 1 0 2 |
correct output |
---|
1 1 0 2 |
user output |
---|
0 2 0 1 |
Test 18
Verdict: WRONG ANSWER
input |
---|
3 1 0 2 0 1 |
correct output |
---|
1 1 0 2 |
user output |
---|
0 2 1 2 |
Test 19
Verdict: ACCEPTED
input |
---|
3 2 1 0 1 2 |
correct output |
---|
0 2 0 2 |
user output |
---|
0 2 0 2 |
Test 20
Verdict: ACCEPTED
input |
---|
3 2 0 1 0 2 |
correct output |
---|
0 2 1 2 |
user output |
---|
0 2 1 2 |
Test 21
Verdict: WRONG ANSWER
input |
---|
4 1 2 1 2 0 1 3 |
correct output |
---|
2 1 0 2 |
user output |
---|
0 3 0 3 |
Test 22
Verdict: WRONG ANSWER
input |
---|
4 1 2 0 0 3 1 0 |
correct output |
---|
2 0 |
user output |
---|
1 2 1 2 |
Test 23
Verdict: WRONG ANSWER
input |
---|
4 2 3 0 1 2 2 3 |
correct output |
---|
1 2 0 2 |
user output |
---|
0 3 0 1 |
Test 24
Verdict: ACCEPTED
input |
---|
4 2 1 0 0 3 0 2 |
correct output |
---|
1 2 1 3 |
user output |
---|
1 2 1 2 |
Test 25
Verdict: ACCEPTED
input |
---|
4 3 3 0 3 2 2 1 |
correct output |
---|
0 3 0 1 |
user output |
---|
0 3 0 1 |
Test 26
Verdict: ACCEPTED
input |
---|
4 3 1 0 3 0 2 0 |
correct output |
---|
1 2 1 3 |
user output |
---|
1 2 1 2 |
Test 27
Verdict: ACCEPTED
input |
---|
10 3 3 0 8 1 9 5 0 4 ... |
correct output |
---|
2 3 0 5 |
user output |
---|
2 3 0 5 |
Test 28
Verdict: WRONG ANSWER
input |
---|
100 4 32 66 29 26 86 0 71 83 ... |
correct output |
---|
12 4 86 89 |
user output |
---|
10 8 70 97 |
Test 29
Verdict: RUNTIME ERROR
input |
---|
1000 1 155 994 213 449 582 440 277 0 ... |
correct output |
---|
22 1 1 330 |
user output |
---|
(empty) |
Test 30
Verdict: RUNTIME ERROR
input |
---|
2500 10 517 660 971 230 982 1721 2200 2124 ... |
correct output |
---|
23 4 294 943 |
user output |
---|
(empty) |
Test 31
Verdict: RUNTIME ERROR
input |
---|
5000 1 1611 2785 2978 4796 3783 4548 1074 1256 ... |
correct output |
---|
34 1 0 1611 |
user output |
---|
(empty) |
Test 32
Verdict: RUNTIME ERROR
input |
---|
5000 2 3110 2737 2365 2830 2914 874 3720 2637 ... |
correct output |
---|
30 2 844 1623 |
user output |
---|
(empty) |
Test 33
Verdict: RUNTIME ERROR
input |
---|
5000 4 664 4317 295 764 4857 1869 1111 1915 ... |
correct output |
---|
33 4 541 2936 |
user output |
---|
(empty) |
Test 34
Verdict: RUNTIME ERROR
input |
---|
5000 8 4033 4112 3295 1781 1623 933 2035 1665 ... |
correct output |
---|
30 7 2605 4351 |
user output |
---|
(empty) |
Test 35
Verdict: RUNTIME ERROR
input |
---|
5000 20 2304 353 834 2090 1767 72 3026 4211 ... |
correct output |
---|
26 12 1708 3762 |
user output |
---|
(empty) |
Test 36
Verdict: RUNTIME ERROR
input |
---|
5000 100 1688 3447 496 2607 1054 2586 4259 2671 ... |
correct output |
---|
29 5 1379 2879 |
user output |
---|
(empty) |
Test 37
Verdict: RUNTIME ERROR
input |
---|
5000 1000 638 3198 3452 4568 2723 2277 1947 4539 ... |
correct output |
---|
28 6 517 4411 |
user output |
---|
(empty) |
Test 38
Verdict: RUNTIME ERROR
input |
---|
5000 2000 1451 4112 1730 1026 1556 1248 4723 678 ... |
correct output |
---|
28 6 82 4161 |
user output |
---|
(empty) |
Test 39
Verdict: RUNTIME ERROR
input |
---|
5000 4000 3618 1301 2744 1363 1705 3118 2385 2886 ... |
correct output |
---|
28 11 1526 2510 |
user output |
---|
(empty) |
Test 40
Verdict: RUNTIME ERROR
input |
---|
5000 4999 1647 992 3574 4278 2808 2380 3945 287 ... |
correct output |
---|
25 10 510 839 |
user output |
---|
(empty) |
Test 41
Verdict: WRONG ANSWER
input |
---|
100 4 48 94 54 34 25 31 12 16 ... |
correct output |
---|
18 3 13 24 |
user output |
---|
17 5 23 63 |
Test 42
Verdict: RUNTIME ERROR
input |
---|
1000 1 649 341 964 65 43 702 226 543 ... |
correct output |
---|
54 1 23 833 |
user output |
---|
(empty) |
Test 43
Verdict: RUNTIME ERROR
input |
---|
2500 10 2238 1206 1470 365 1938 1220 962 2009 ... |
correct output |
---|
51 10 333 1068 |
user output |
---|
(empty) |
Test 44
Verdict: RUNTIME ERROR
input |
---|
5000 1 1600 4821 4466 2988 261 1010 1777 2935 ... |
correct output |
---|
84 1 36 723 |
user output |
---|
(empty) |
Test 45
Verdict: RUNTIME ERROR
input |
---|
5000 2 2161 2849 1729 1347 1763 2560 2098 2899 ... |
correct output |
---|
112 2 1 1769 |
user output |
---|
(empty) |
Test 46
Verdict: RUNTIME ERROR
input |
---|
5000 4 3961 4831 2920 3199 4703 3118 201 1241 ... |
correct output |
---|
112 4 43 4157 |
user output |
---|
(empty) |
Test 47
Verdict: RUNTIME ERROR
input |
---|
5000 8 3226 1183 3536 3297 2501 261 3071 4107 ... |
correct output |
---|
122 8 133 2017 |
user output |
---|
(empty) |
Test 48
Verdict: RUNTIME ERROR
input |
---|
5000 20 1221 3603 3259 3147 3676 1561 4574 962 ... |
correct output |
---|
86 20 128 2391 |
user output |
---|
(empty) |
Test 49
Verdict: RUNTIME ERROR
input |
---|
5000 100 50 2333 699 2904 4502 392 2177 3778 ... |
correct output |
---|
75 42 1627 3129 |
user output |
---|
(empty) |
Test 50
Verdict: RUNTIME ERROR
input |
---|
5000 1000 1025 4349 3214 4639 4004 2506 652 4796 ... |
correct output |
---|
38 10 2964 4732 |
user output |
---|
(empty) |
Test 51
Verdict: RUNTIME ERROR
input |
---|
5000 2000 4108 791 4770 1666 4203 4197 2566 728 ... |
correct output |
---|
48 19 2640 4559 |
user output |
---|
(empty) |
Test 52
Verdict: RUNTIME ERROR
input |
---|
5000 4000 2183 3550 857 549 4752 3563 4198 4895 ... |
correct output |
---|
69 26 3244 4780 |
user output |
---|
(empty) |
Test 53
Verdict: RUNTIME ERROR
input |
---|
5000 4999 4282 2328 4163 653 929 3214 3631 4207 ... |
correct output |
---|
79 26 2794 4878 |
user output |
---|
(empty) |
Test 54
Verdict: ACCEPTED
input |
---|
100 4 51 84 32 89 92 51 67 4 ... |
correct output |
---|
5 3 14 50 |
user output |
---|
5 3 14 50 |
Test 55
Verdict: RUNTIME ERROR
input |
---|
1000 1 942 999 402 534 533 278 228 908 ... |
correct output |
---|
10 1 0 968 |
user output |
---|
(empty) |
Test 56
Verdict: RUNTIME ERROR
input |
---|
2500 10 1639 991 640 223 1940 1067 801 257 ... |
correct output |
---|
12 2 2075 2395 |
user output |
---|
(empty) |
Test 57
Verdict: RUNTIME ERROR
input |
---|
5000 1 1585 3293 3686 3851 1447 1604 392 2681 ... |
correct output |
---|
14 0 |
user output |
---|
(empty) |
Test 58
Verdict: RUNTIME ERROR
input |
---|
5000 2 626 3760 2593 3177 1343 889 1377 596 ... |
correct output |
---|
14 0 |
user output |
---|
(empty) |
Test 59
Verdict: RUNTIME ERROR
input |
---|
5000 4 1462 182 3060 4479 3021 4111 3145 2887 ... |
correct output |
---|
12 2 2219 3145 |
user output |
---|
(empty) |
Test 60
Verdict: RUNTIME ERROR
input |
---|
5000 8 671 2837 3952 4186 828 1632 3885 2545 ... |
correct output |
---|
10 1 0 2405 |
user output |
---|
(empty) |
Test 61
Verdict: RUNTIME ERROR
input |
---|
5000 20 3274 1781 3151 566 1298 1210 495 4010 ... |
correct output |
---|
14 0 |
user output |
---|
(empty) |
Test 62
Verdict: RUNTIME ERROR
input |
---|
5000 100 487 1275 4234 2960 1502 3713 2471 819 ... |
correct output |
---|
10 1 0 4411 |
user output |
---|
(empty) |
Test 63
Verdict: RUNTIME ERROR
input |
---|
5000 1000 2192 4468 4475 4665 81 4277 998 1960 ... |
correct output |
---|
12 1 0 910 |
user output |
---|
(empty) |
Test 64
Verdict: RUNTIME ERROR
input |
---|
5000 2000 686 0 3311 3404 176 2362 119 2765 ... |
correct output |
---|
14 1 0 3007 |
user output |
---|
(empty) |
Test 65
Verdict: RUNTIME ERROR
input |
---|
5000 4000 2848 3939 1514 2396 527 821 2586 4938 ... |
correct output |
---|
16 3 318 3675 |
user output |
---|
(empty) |
Test 66
Verdict: RUNTIME ERROR
input |
---|
5000 4999 2128 1367 1616 1575 4936 3022 339 4210 ... |
correct output |
---|
10 0 |
user output |
---|
(empty) |
Test 67
Verdict: RUNTIME ERROR
input |
---|
5000 4999 2858 558 4677 2444 3042 610 1950 4352 ... |
correct output |
---|
0 4999 0 1971 |
user output |
---|
(empty) |
Test 68
Verdict: RUNTIME ERROR
input |
---|
5000 4999 0 3957 0 2864 0 2018 2678 0 ... |
correct output |
---|
2 0 |
user output |
---|
(empty) |
Test 69
Verdict: RUNTIME ERROR
input |
---|
5000 1 2654 1880 2560 3683 4613 596 4860 1233 ... |
correct output |
---|
4998 1 0 1782 |
user output |
---|
(empty) |
Test 70
Verdict: RUNTIME ERROR
input |
---|
5000 1 3762 0 0 2803 0 1387 610 0 ... |
correct output |
---|
2 0 |
user output |
---|
(empty) |
Test 71
Verdict: WRONG ANSWER
input |
---|
10 4 3 0 8 4 5 7 3 8 ... |
correct output |
---|
3 4 3 5 |
user output |
---|
2 5 3 7 |
Test 72
Verdict: ACCEPTED
input |
---|
10 5 1 3 5 9 9 2 6 3 ... |
correct output |
---|
2 5 2 6 |
user output |
---|
2 5 2 6 |