# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
444298 |
2021-07-13T14:22:52 Z |
dutch |
Bridges (APIO19_bridges) |
C++17 |
|
2050 ms |
9840 KB |
#include <bits/stdc++.h>
using namespace std;
#define F(z) while(e[z] >= 0) z = e[z];
const int MAXN = 5e4, LIM = 1e5, SQRT = 500;
int n, m, q, e[MAXN], w[LIM], rb[3][SQRT], p, g[2][LIM], b[4][LIM];
bool on[LIM];
void unite(int i, bool c){
int u = g[0][i], v = g[1][i];
F(u) F(v)
if(u == v) return;
if(e[u] > e[v]) swap(u, v);
if(c){
rb[0][p] = u, rb[1][p] = v;
rb[2][p++] = e[v];
}
e[u] += e[v], e[v] = u;
}
signed main(){
cin.tie(0)->sync_with_stdio(0);
cin >> n >> m;
vector<array<int, 3>> a(m); // -wt, type, time/queryID
for(int i=0; i<m; ++i){
cin >> g[0][i] >> g[1][i] >> w[i];
--g[0][i], --g[1][i];
a[i] = {-w[i], 1, -1-i};
}
cin >> q;
a.resize(m+q);
for(int i=0; i<q; ++i){
cin >> b[0][i] >> b[1][i] >> b[2][i];
--b[1][i];
a[i+m] = {-b[2][i], b[0][i], i};
}
sort(a.begin(), a.end());
for(int l=0; l<q; l+=SQRT){
int r = min(q, l+SQRT);
vector<int> curr;
for(int i=l; i<r; ++i){
if(b[0][i] == 1){
on[b[1][i]] = 1;
curr.push_back(b[1][i]);
}
}
fill(e, e+n, -1);
for(auto &i : a){
if(i[1] < 2){
int j = i[2] < 0 ? -i[2]-1 : (i[2] < l ? b[1][i[2]] : -1);
if(j >= 0 && !on[j] && -i[0] == w[j]) unite(j, 0);
}else if(l <= i[2] && i[2] < r){
for(int j=i[2]; --j>=l; ){
if(b[0][j] < 2 && on[b[1][j]]){
on[b[1][j]] = 0;
if(b[2][j] >= -i[0]) unite(b[1][j], 1);
}
}
for(int &j : curr) if(on[j] && w[j] >= -i[0]) unite(j, 1);
F(b[1][i[2]])
b[3][i[2]] = -e[b[1][i[2]]];
for(int j=l; j<r; ++j){
if(b[0][j] < 2) on[b[1][j]] = 1;
if(p) --p, e[rb[0][p]] -= (e[rb[1][p]] = rb[2][p]);
}
}
}
for(int i=l; i<r; ++i){
if(b[0][i] < 2){
on[b[1][i]] = 0;
w[b[1][i]] = b[2][i];
}
}
}
for(int i=0; i<q; ++i) if(b[0][i] > 1) cout << b[3][i] << '\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
33 ms |
828 KB |
Output is correct |
4 |
Correct |
14 ms |
740 KB |
Output is correct |
5 |
Correct |
32 ms |
752 KB |
Output is correct |
6 |
Correct |
28 ms |
780 KB |
Output is correct |
7 |
Correct |
29 ms |
700 KB |
Output is correct |
8 |
Correct |
34 ms |
780 KB |
Output is correct |
9 |
Correct |
29 ms |
708 KB |
Output is correct |
10 |
Correct |
32 ms |
756 KB |
Output is correct |
11 |
Correct |
31 ms |
772 KB |
Output is correct |
12 |
Correct |
32 ms |
772 KB |
Output is correct |
13 |
Correct |
36 ms |
772 KB |
Output is correct |
14 |
Correct |
34 ms |
716 KB |
Output is correct |
15 |
Correct |
34 ms |
776 KB |
Output is correct |
16 |
Correct |
34 ms |
716 KB |
Output is correct |
17 |
Correct |
30 ms |
708 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1296 ms |
7276 KB |
Output is correct |
2 |
Correct |
1256 ms |
7244 KB |
Output is correct |
3 |
Correct |
1249 ms |
7244 KB |
Output is correct |
4 |
Correct |
1299 ms |
7372 KB |
Output is correct |
5 |
Correct |
1313 ms |
7288 KB |
Output is correct |
6 |
Correct |
1430 ms |
7312 KB |
Output is correct |
7 |
Correct |
1484 ms |
7320 KB |
Output is correct |
8 |
Correct |
1451 ms |
7296 KB |
Output is correct |
9 |
Correct |
168 ms |
4644 KB |
Output is correct |
10 |
Correct |
882 ms |
6284 KB |
Output is correct |
11 |
Correct |
856 ms |
6236 KB |
Output is correct |
12 |
Correct |
850 ms |
7468 KB |
Output is correct |
13 |
Correct |
1101 ms |
7244 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1014 ms |
6436 KB |
Output is correct |
2 |
Correct |
654 ms |
5124 KB |
Output is correct |
3 |
Correct |
1044 ms |
6424 KB |
Output is correct |
4 |
Correct |
1043 ms |
6636 KB |
Output is correct |
5 |
Correct |
175 ms |
4548 KB |
Output is correct |
6 |
Correct |
1042 ms |
6480 KB |
Output is correct |
7 |
Correct |
984 ms |
6504 KB |
Output is correct |
8 |
Correct |
915 ms |
6408 KB |
Output is correct |
9 |
Correct |
677 ms |
6636 KB |
Output is correct |
10 |
Correct |
677 ms |
6604 KB |
Output is correct |
11 |
Correct |
763 ms |
6316 KB |
Output is correct |
12 |
Correct |
736 ms |
6292 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1431 ms |
9800 KB |
Output is correct |
2 |
Correct |
165 ms |
4552 KB |
Output is correct |
3 |
Correct |
123 ms |
5716 KB |
Output is correct |
4 |
Correct |
124 ms |
5908 KB |
Output is correct |
5 |
Correct |
915 ms |
8480 KB |
Output is correct |
6 |
Correct |
1394 ms |
9840 KB |
Output is correct |
7 |
Correct |
863 ms |
8336 KB |
Output is correct |
8 |
Correct |
712 ms |
7300 KB |
Output is correct |
9 |
Correct |
708 ms |
7412 KB |
Output is correct |
10 |
Correct |
566 ms |
7372 KB |
Output is correct |
11 |
Correct |
1129 ms |
8472 KB |
Output is correct |
12 |
Correct |
1089 ms |
8592 KB |
Output is correct |
13 |
Correct |
914 ms |
8580 KB |
Output is correct |
14 |
Correct |
871 ms |
8396 KB |
Output is correct |
15 |
Correct |
886 ms |
8412 KB |
Output is correct |
16 |
Correct |
1466 ms |
9720 KB |
Output is correct |
17 |
Correct |
1477 ms |
9684 KB |
Output is correct |
18 |
Correct |
1457 ms |
9804 KB |
Output is correct |
19 |
Correct |
1432 ms |
9776 KB |
Output is correct |
20 |
Correct |
1014 ms |
9076 KB |
Output is correct |
21 |
Correct |
1037 ms |
8852 KB |
Output is correct |
22 |
Correct |
1268 ms |
9560 KB |
Output is correct |
23 |
Correct |
882 ms |
7776 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1296 ms |
7276 KB |
Output is correct |
2 |
Correct |
1256 ms |
7244 KB |
Output is correct |
3 |
Correct |
1249 ms |
7244 KB |
Output is correct |
4 |
Correct |
1299 ms |
7372 KB |
Output is correct |
5 |
Correct |
1313 ms |
7288 KB |
Output is correct |
6 |
Correct |
1430 ms |
7312 KB |
Output is correct |
7 |
Correct |
1484 ms |
7320 KB |
Output is correct |
8 |
Correct |
1451 ms |
7296 KB |
Output is correct |
9 |
Correct |
168 ms |
4644 KB |
Output is correct |
10 |
Correct |
882 ms |
6284 KB |
Output is correct |
11 |
Correct |
856 ms |
6236 KB |
Output is correct |
12 |
Correct |
850 ms |
7468 KB |
Output is correct |
13 |
Correct |
1101 ms |
7244 KB |
Output is correct |
14 |
Correct |
1014 ms |
6436 KB |
Output is correct |
15 |
Correct |
654 ms |
5124 KB |
Output is correct |
16 |
Correct |
1044 ms |
6424 KB |
Output is correct |
17 |
Correct |
1043 ms |
6636 KB |
Output is correct |
18 |
Correct |
175 ms |
4548 KB |
Output is correct |
19 |
Correct |
1042 ms |
6480 KB |
Output is correct |
20 |
Correct |
984 ms |
6504 KB |
Output is correct |
21 |
Correct |
915 ms |
6408 KB |
Output is correct |
22 |
Correct |
677 ms |
6636 KB |
Output is correct |
23 |
Correct |
677 ms |
6604 KB |
Output is correct |
24 |
Correct |
763 ms |
6316 KB |
Output is correct |
25 |
Correct |
736 ms |
6292 KB |
Output is correct |
26 |
Correct |
1236 ms |
7304 KB |
Output is correct |
27 |
Correct |
1385 ms |
7336 KB |
Output is correct |
28 |
Correct |
1376 ms |
7604 KB |
Output is correct |
29 |
Correct |
1147 ms |
7272 KB |
Output is correct |
30 |
Correct |
1434 ms |
7240 KB |
Output is correct |
31 |
Correct |
1429 ms |
7272 KB |
Output is correct |
32 |
Correct |
1434 ms |
7216 KB |
Output is correct |
33 |
Correct |
1309 ms |
7288 KB |
Output is correct |
34 |
Correct |
1309 ms |
7416 KB |
Output is correct |
35 |
Correct |
1341 ms |
7296 KB |
Output is correct |
36 |
Correct |
1142 ms |
7428 KB |
Output is correct |
37 |
Correct |
1139 ms |
7400 KB |
Output is correct |
38 |
Correct |
1127 ms |
7324 KB |
Output is correct |
39 |
Correct |
856 ms |
7628 KB |
Output is correct |
40 |
Correct |
848 ms |
7440 KB |
Output is correct |
41 |
Correct |
856 ms |
7312 KB |
Output is correct |
42 |
Correct |
1006 ms |
7288 KB |
Output is correct |
43 |
Correct |
1002 ms |
7160 KB |
Output is correct |
44 |
Correct |
1002 ms |
7208 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
33 ms |
828 KB |
Output is correct |
4 |
Correct |
14 ms |
740 KB |
Output is correct |
5 |
Correct |
32 ms |
752 KB |
Output is correct |
6 |
Correct |
28 ms |
780 KB |
Output is correct |
7 |
Correct |
29 ms |
700 KB |
Output is correct |
8 |
Correct |
34 ms |
780 KB |
Output is correct |
9 |
Correct |
29 ms |
708 KB |
Output is correct |
10 |
Correct |
32 ms |
756 KB |
Output is correct |
11 |
Correct |
31 ms |
772 KB |
Output is correct |
12 |
Correct |
32 ms |
772 KB |
Output is correct |
13 |
Correct |
36 ms |
772 KB |
Output is correct |
14 |
Correct |
34 ms |
716 KB |
Output is correct |
15 |
Correct |
34 ms |
776 KB |
Output is correct |
16 |
Correct |
34 ms |
716 KB |
Output is correct |
17 |
Correct |
30 ms |
708 KB |
Output is correct |
18 |
Correct |
1296 ms |
7276 KB |
Output is correct |
19 |
Correct |
1256 ms |
7244 KB |
Output is correct |
20 |
Correct |
1249 ms |
7244 KB |
Output is correct |
21 |
Correct |
1299 ms |
7372 KB |
Output is correct |
22 |
Correct |
1313 ms |
7288 KB |
Output is correct |
23 |
Correct |
1430 ms |
7312 KB |
Output is correct |
24 |
Correct |
1484 ms |
7320 KB |
Output is correct |
25 |
Correct |
1451 ms |
7296 KB |
Output is correct |
26 |
Correct |
168 ms |
4644 KB |
Output is correct |
27 |
Correct |
882 ms |
6284 KB |
Output is correct |
28 |
Correct |
856 ms |
6236 KB |
Output is correct |
29 |
Correct |
850 ms |
7468 KB |
Output is correct |
30 |
Correct |
1101 ms |
7244 KB |
Output is correct |
31 |
Correct |
1014 ms |
6436 KB |
Output is correct |
32 |
Correct |
654 ms |
5124 KB |
Output is correct |
33 |
Correct |
1044 ms |
6424 KB |
Output is correct |
34 |
Correct |
1043 ms |
6636 KB |
Output is correct |
35 |
Correct |
175 ms |
4548 KB |
Output is correct |
36 |
Correct |
1042 ms |
6480 KB |
Output is correct |
37 |
Correct |
984 ms |
6504 KB |
Output is correct |
38 |
Correct |
915 ms |
6408 KB |
Output is correct |
39 |
Correct |
677 ms |
6636 KB |
Output is correct |
40 |
Correct |
677 ms |
6604 KB |
Output is correct |
41 |
Correct |
763 ms |
6316 KB |
Output is correct |
42 |
Correct |
736 ms |
6292 KB |
Output is correct |
43 |
Correct |
1431 ms |
9800 KB |
Output is correct |
44 |
Correct |
165 ms |
4552 KB |
Output is correct |
45 |
Correct |
123 ms |
5716 KB |
Output is correct |
46 |
Correct |
124 ms |
5908 KB |
Output is correct |
47 |
Correct |
915 ms |
8480 KB |
Output is correct |
48 |
Correct |
1394 ms |
9840 KB |
Output is correct |
49 |
Correct |
863 ms |
8336 KB |
Output is correct |
50 |
Correct |
712 ms |
7300 KB |
Output is correct |
51 |
Correct |
708 ms |
7412 KB |
Output is correct |
52 |
Correct |
566 ms |
7372 KB |
Output is correct |
53 |
Correct |
1129 ms |
8472 KB |
Output is correct |
54 |
Correct |
1089 ms |
8592 KB |
Output is correct |
55 |
Correct |
914 ms |
8580 KB |
Output is correct |
56 |
Correct |
871 ms |
8396 KB |
Output is correct |
57 |
Correct |
886 ms |
8412 KB |
Output is correct |
58 |
Correct |
1466 ms |
9720 KB |
Output is correct |
59 |
Correct |
1477 ms |
9684 KB |
Output is correct |
60 |
Correct |
1457 ms |
9804 KB |
Output is correct |
61 |
Correct |
1432 ms |
9776 KB |
Output is correct |
62 |
Correct |
1014 ms |
9076 KB |
Output is correct |
63 |
Correct |
1037 ms |
8852 KB |
Output is correct |
64 |
Correct |
1268 ms |
9560 KB |
Output is correct |
65 |
Correct |
882 ms |
7776 KB |
Output is correct |
66 |
Correct |
1236 ms |
7304 KB |
Output is correct |
67 |
Correct |
1385 ms |
7336 KB |
Output is correct |
68 |
Correct |
1376 ms |
7604 KB |
Output is correct |
69 |
Correct |
1147 ms |
7272 KB |
Output is correct |
70 |
Correct |
1434 ms |
7240 KB |
Output is correct |
71 |
Correct |
1429 ms |
7272 KB |
Output is correct |
72 |
Correct |
1434 ms |
7216 KB |
Output is correct |
73 |
Correct |
1309 ms |
7288 KB |
Output is correct |
74 |
Correct |
1309 ms |
7416 KB |
Output is correct |
75 |
Correct |
1341 ms |
7296 KB |
Output is correct |
76 |
Correct |
1142 ms |
7428 KB |
Output is correct |
77 |
Correct |
1139 ms |
7400 KB |
Output is correct |
78 |
Correct |
1127 ms |
7324 KB |
Output is correct |
79 |
Correct |
856 ms |
7628 KB |
Output is correct |
80 |
Correct |
848 ms |
7440 KB |
Output is correct |
81 |
Correct |
856 ms |
7312 KB |
Output is correct |
82 |
Correct |
1006 ms |
7288 KB |
Output is correct |
83 |
Correct |
1002 ms |
7160 KB |
Output is correct |
84 |
Correct |
1002 ms |
7208 KB |
Output is correct |
85 |
Correct |
1998 ms |
9724 KB |
Output is correct |
86 |
Correct |
148 ms |
5756 KB |
Output is correct |
87 |
Correct |
145 ms |
5852 KB |
Output is correct |
88 |
Correct |
1281 ms |
8220 KB |
Output is correct |
89 |
Correct |
1951 ms |
9620 KB |
Output is correct |
90 |
Correct |
1282 ms |
8188 KB |
Output is correct |
91 |
Correct |
1372 ms |
7160 KB |
Output is correct |
92 |
Correct |
1326 ms |
7292 KB |
Output is correct |
93 |
Correct |
1495 ms |
7268 KB |
Output is correct |
94 |
Correct |
1820 ms |
8328 KB |
Output is correct |
95 |
Correct |
1688 ms |
8620 KB |
Output is correct |
96 |
Correct |
1726 ms |
8416 KB |
Output is correct |
97 |
Correct |
1022 ms |
8424 KB |
Output is correct |
98 |
Correct |
1197 ms |
8044 KB |
Output is correct |
99 |
Correct |
2017 ms |
9660 KB |
Output is correct |
100 |
Correct |
2039 ms |
9576 KB |
Output is correct |
101 |
Correct |
2050 ms |
9764 KB |
Output is correct |
102 |
Correct |
2015 ms |
9768 KB |
Output is correct |
103 |
Correct |
1867 ms |
8696 KB |
Output is correct |
104 |
Correct |
1868 ms |
8792 KB |
Output is correct |
105 |
Correct |
1729 ms |
8612 KB |
Output is correct |
106 |
Correct |
1499 ms |
8260 KB |
Output is correct |
107 |
Correct |
1294 ms |
8916 KB |
Output is correct |
108 |
Correct |
1990 ms |
9336 KB |
Output is correct |
109 |
Correct |
1377 ms |
7500 KB |
Output is correct |