# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
211897 | 2020-03-21T15:52:10 Z | Akashi | Making Friends on Joitter is Fun (JOI20_joitter2) | C++14 | 1349 ms | 79352 KB |
#include <bits/stdc++.h> using namespace std; int n, m; int TT[100001], SZ[100001]; set <int> in[100001], out[100001], bridge[100001], elem[100001]; long long Sol = 0; inline int find(int x){ if(x != TT[x]) return (TT[x] = find(TT[x])); return x; } inline void unite(int x, int y){ if(x == y) return ; if(elem[x].size() + in[x].size() + out[x].size() + bridge[x].size() < in[y].size() + out[y].size() + bridge[y].size() + elem[y].size()) swap(x, y); Sol += 2LL * SZ[x] * SZ[y]; for(auto it : bridge[y]) if(elem[x].count(it)) Sol = Sol - SZ[y]; for(auto it : elem[y]) if(bridge[x].count(it)) Sol = Sol - SZ[x]; for(auto it : bridge[y]) if(!bridge[x].count(it) && !elem[x].count(it)) Sol = Sol + SZ[x]; int nr = bridge[x].size(); for(auto it : bridge[y]) if(bridge[x].count(it)) --nr; for(auto it : elem[y]) if(bridge[x].count(it)) --nr; Sol = Sol + 1LL * SZ[y] * nr; for(auto it : elem[y]){ elem[x].insert(it); if(bridge[x].count(it)) bridge[x].erase(it); } for(auto it : bridge[y]) if(!elem[x].count(it)) bridge[x].insert(it); if(in[x].count(y)) in[x].erase(y); if(out[x].count(y)) out[x].erase(y); for(auto it : in[y]){ if(it != x){ in[x].insert(it); out[it].erase(y); out[it].insert(x); } } for(auto it : out[y]){ if(it != x){ out[x].insert(it); in[it].erase(y); in[it].insert(x); } } SZ[x] += SZ[y]; TT[y] = x; for(auto it : in[y]){ if(out[x].count(it)){ unite(x, find(it)); x = find(x); } } for(auto it : out[y]){ if(in[x].count(it)){ unite(x, find(it)); x = find(x); } } } int main() { // freopen("1.in", "r", stdin); // freopen("1.out", "w", stdout); scanf("%d%d", &n, &m); for(int i = 1; i <= n ; ++i){ TT[i] = i, SZ[i] = 1; elem[i].insert(i); } int x, y, fx, fy; for(int i = 1; i <= m ; ++i){ scanf("%d%d", &x, &y); fx = x; fy = y; x = find(x); y = find(y); if(x == y){ printf("%lld\n", Sol); continue ; } if(!bridge[y].count(fx)){ out[x].insert(y); in[y].insert(x); bridge[y].insert(fx); Sol += SZ[y]; if(in[x].count(y)) unite(x, y); } printf("%lld\n", Sol); } return 0; }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 14 ms | 19072 KB | Output is correct |
2 | Correct | 14 ms | 19072 KB | Output is correct |
3 | Correct | 15 ms | 19200 KB | Output is correct |
4 | Correct | 16 ms | 19072 KB | Output is correct |
5 | Correct | 14 ms | 19200 KB | Output is correct |
6 | Correct | 14 ms | 19072 KB | Output is correct |
7 | Correct | 15 ms | 19200 KB | Output is correct |
8 | Correct | 16 ms | 19200 KB | Output is correct |
9 | Correct | 15 ms | 19200 KB | Output is correct |
10 | Correct | 14 ms | 19072 KB | Output is correct |
11 | Correct | 15 ms | 19072 KB | Output is correct |
12 | Correct | 15 ms | 19200 KB | Output is correct |
13 | Correct | 17 ms | 19200 KB | Output is correct |
14 | Correct | 14 ms | 19072 KB | Output is correct |
15 | Correct | 14 ms | 19072 KB | Output is correct |
16 | Correct | 14 ms | 19200 KB | Output is correct |
17 | Correct | 14 ms | 19072 KB | Output is correct |
18 | Correct | 14 ms | 19072 KB | Output is correct |
19 | Correct | 14 ms | 19072 KB | Output is correct |
20 | Correct | 16 ms | 19072 KB | Output is correct |
21 | Correct | 17 ms | 19200 KB | Output is correct |
22 | Correct | 14 ms | 19200 KB | Output is correct |
23 | Correct | 17 ms | 19200 KB | Output is correct |
24 | Correct | 17 ms | 19072 KB | Output is correct |
25 | Correct | 15 ms | 19200 KB | Output is correct |
26 | Correct | 15 ms | 19072 KB | Output is correct |
27 | Correct | 14 ms | 19072 KB | Output is correct |
28 | Correct | 14 ms | 19072 KB | Output is correct |
29 | Correct | 14 ms | 19200 KB | Output is correct |
30 | Correct | 14 ms | 19072 KB | Output is correct |
31 | Correct | 15 ms | 19072 KB | Output is correct |
32 | Correct | 16 ms | 19072 KB | Output is correct |
33 | Correct | 15 ms | 19200 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 14 ms | 19072 KB | Output is correct |
2 | Correct | 14 ms | 19072 KB | Output is correct |
3 | Correct | 15 ms | 19200 KB | Output is correct |
4 | Correct | 16 ms | 19072 KB | Output is correct |
5 | Correct | 14 ms | 19200 KB | Output is correct |
6 | Correct | 14 ms | 19072 KB | Output is correct |
7 | Correct | 15 ms | 19200 KB | Output is correct |
8 | Correct | 16 ms | 19200 KB | Output is correct |
9 | Correct | 15 ms | 19200 KB | Output is correct |
10 | Correct | 14 ms | 19072 KB | Output is correct |
11 | Correct | 15 ms | 19072 KB | Output is correct |
12 | Correct | 15 ms | 19200 KB | Output is correct |
13 | Correct | 17 ms | 19200 KB | Output is correct |
14 | Correct | 14 ms | 19072 KB | Output is correct |
15 | Correct | 14 ms | 19072 KB | Output is correct |
16 | Correct | 14 ms | 19200 KB | Output is correct |
17 | Correct | 14 ms | 19072 KB | Output is correct |
18 | Correct | 14 ms | 19072 KB | Output is correct |
19 | Correct | 14 ms | 19072 KB | Output is correct |
20 | Correct | 16 ms | 19072 KB | Output is correct |
21 | Correct | 17 ms | 19200 KB | Output is correct |
22 | Correct | 14 ms | 19200 KB | Output is correct |
23 | Correct | 17 ms | 19200 KB | Output is correct |
24 | Correct | 17 ms | 19072 KB | Output is correct |
25 | Correct | 15 ms | 19200 KB | Output is correct |
26 | Correct | 15 ms | 19072 KB | Output is correct |
27 | Correct | 14 ms | 19072 KB | Output is correct |
28 | Correct | 14 ms | 19072 KB | Output is correct |
29 | Correct | 14 ms | 19200 KB | Output is correct |
30 | Correct | 14 ms | 19072 KB | Output is correct |
31 | Correct | 15 ms | 19072 KB | Output is correct |
32 | Correct | 16 ms | 19072 KB | Output is correct |
33 | Correct | 15 ms | 19200 KB | Output is correct |
34 | Correct | 18 ms | 19200 KB | Output is correct |
35 | Correct | 151 ms | 22872 KB | Output is correct |
36 | Correct | 177 ms | 25340 KB | Output is correct |
37 | Correct | 162 ms | 25464 KB | Output is correct |
38 | Correct | 160 ms | 25084 KB | Output is correct |
39 | Correct | 19 ms | 19584 KB | Output is correct |
40 | Correct | 20 ms | 19968 KB | Output is correct |
41 | Correct | 20 ms | 19968 KB | Output is correct |
42 | Correct | 18 ms | 19584 KB | Output is correct |
43 | Correct | 20 ms | 19712 KB | Output is correct |
44 | Correct | 21 ms | 19584 KB | Output is correct |
45 | Correct | 19 ms | 19712 KB | Output is correct |
46 | Correct | 19 ms | 19584 KB | Output is correct |
47 | Correct | 21 ms | 19840 KB | Output is correct |
48 | Correct | 22 ms | 19840 KB | Output is correct |
49 | Correct | 30 ms | 20460 KB | Output is correct |
50 | Correct | 166 ms | 25592 KB | Output is correct |
51 | Correct | 26 ms | 19840 KB | Output is correct |
52 | Correct | 154 ms | 23928 KB | Output is correct |
53 | Correct | 30 ms | 20344 KB | Output is correct |
54 | Correct | 152 ms | 24672 KB | Output is correct |
55 | Correct | 23 ms | 19968 KB | Output is correct |
56 | Correct | 23 ms | 19968 KB | Output is correct |
57 | Correct | 26 ms | 20224 KB | Output is correct |
58 | Correct | 23 ms | 20224 KB | Output is correct |
59 | Correct | 20 ms | 20096 KB | Output is correct |
60 | Correct | 127 ms | 22392 KB | Output is correct |
61 | Correct | 22 ms | 19840 KB | Output is correct |
62 | Correct | 165 ms | 24952 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 14 ms | 19072 KB | Output is correct |
2 | Correct | 14 ms | 19072 KB | Output is correct |
3 | Correct | 15 ms | 19200 KB | Output is correct |
4 | Correct | 16 ms | 19072 KB | Output is correct |
5 | Correct | 14 ms | 19200 KB | Output is correct |
6 | Correct | 14 ms | 19072 KB | Output is correct |
7 | Correct | 15 ms | 19200 KB | Output is correct |
8 | Correct | 16 ms | 19200 KB | Output is correct |
9 | Correct | 15 ms | 19200 KB | Output is correct |
10 | Correct | 14 ms | 19072 KB | Output is correct |
11 | Correct | 15 ms | 19072 KB | Output is correct |
12 | Correct | 15 ms | 19200 KB | Output is correct |
13 | Correct | 17 ms | 19200 KB | Output is correct |
14 | Correct | 14 ms | 19072 KB | Output is correct |
15 | Correct | 14 ms | 19072 KB | Output is correct |
16 | Correct | 14 ms | 19200 KB | Output is correct |
17 | Correct | 14 ms | 19072 KB | Output is correct |
18 | Correct | 14 ms | 19072 KB | Output is correct |
19 | Correct | 14 ms | 19072 KB | Output is correct |
20 | Correct | 16 ms | 19072 KB | Output is correct |
21 | Correct | 17 ms | 19200 KB | Output is correct |
22 | Correct | 14 ms | 19200 KB | Output is correct |
23 | Correct | 17 ms | 19200 KB | Output is correct |
24 | Correct | 17 ms | 19072 KB | Output is correct |
25 | Correct | 15 ms | 19200 KB | Output is correct |
26 | Correct | 15 ms | 19072 KB | Output is correct |
27 | Correct | 14 ms | 19072 KB | Output is correct |
28 | Correct | 14 ms | 19072 KB | Output is correct |
29 | Correct | 14 ms | 19200 KB | Output is correct |
30 | Correct | 14 ms | 19072 KB | Output is correct |
31 | Correct | 15 ms | 19072 KB | Output is correct |
32 | Correct | 16 ms | 19072 KB | Output is correct |
33 | Correct | 15 ms | 19200 KB | Output is correct |
34 | Correct | 18 ms | 19200 KB | Output is correct |
35 | Correct | 151 ms | 22872 KB | Output is correct |
36 | Correct | 177 ms | 25340 KB | Output is correct |
37 | Correct | 162 ms | 25464 KB | Output is correct |
38 | Correct | 160 ms | 25084 KB | Output is correct |
39 | Correct | 19 ms | 19584 KB | Output is correct |
40 | Correct | 20 ms | 19968 KB | Output is correct |
41 | Correct | 20 ms | 19968 KB | Output is correct |
42 | Correct | 18 ms | 19584 KB | Output is correct |
43 | Correct | 20 ms | 19712 KB | Output is correct |
44 | Correct | 21 ms | 19584 KB | Output is correct |
45 | Correct | 19 ms | 19712 KB | Output is correct |
46 | Correct | 19 ms | 19584 KB | Output is correct |
47 | Correct | 21 ms | 19840 KB | Output is correct |
48 | Correct | 22 ms | 19840 KB | Output is correct |
49 | Correct | 30 ms | 20460 KB | Output is correct |
50 | Correct | 166 ms | 25592 KB | Output is correct |
51 | Correct | 26 ms | 19840 KB | Output is correct |
52 | Correct | 154 ms | 23928 KB | Output is correct |
53 | Correct | 30 ms | 20344 KB | Output is correct |
54 | Correct | 152 ms | 24672 KB | Output is correct |
55 | Correct | 23 ms | 19968 KB | Output is correct |
56 | Correct | 23 ms | 19968 KB | Output is correct |
57 | Correct | 26 ms | 20224 KB | Output is correct |
58 | Correct | 23 ms | 20224 KB | Output is correct |
59 | Correct | 20 ms | 20096 KB | Output is correct |
60 | Correct | 127 ms | 22392 KB | Output is correct |
61 | Correct | 22 ms | 19840 KB | Output is correct |
62 | Correct | 165 ms | 24952 KB | Output is correct |
63 | Correct | 540 ms | 68856 KB | Output is correct |
64 | Correct | 530 ms | 68856 KB | Output is correct |
65 | Correct | 551 ms | 68936 KB | Output is correct |
66 | Correct | 364 ms | 45432 KB | Output is correct |
67 | Correct | 528 ms | 72440 KB | Output is correct |
68 | Correct | 350 ms | 45688 KB | Output is correct |
69 | Correct | 644 ms | 45432 KB | Output is correct |
70 | Correct | 378 ms | 45432 KB | Output is correct |
71 | Correct | 386 ms | 45560 KB | Output is correct |
72 | Correct | 630 ms | 56440 KB | Output is correct |
73 | Correct | 628 ms | 58104 KB | Output is correct |
74 | Correct | 1349 ms | 79032 KB | Output is correct |
75 | Correct | 955 ms | 50644 KB | Output is correct |
76 | Correct | 1089 ms | 63144 KB | Output is correct |
77 | Correct | 1069 ms | 63288 KB | Output is correct |
78 | Correct | 316 ms | 45048 KB | Output is correct |
79 | Correct | 582 ms | 51192 KB | Output is correct |
80 | Correct | 369 ms | 43900 KB | Output is correct |
81 | Correct | 687 ms | 48280 KB | Output is correct |
82 | Correct | 958 ms | 59176 KB | Output is correct |
83 | Correct | 982 ms | 59256 KB | Output is correct |
84 | Correct | 904 ms | 76536 KB | Output is correct |
85 | Correct | 913 ms | 76280 KB | Output is correct |
86 | Correct | 432 ms | 78328 KB | Output is correct |
87 | Correct | 507 ms | 79352 KB | Output is correct |
88 | Correct | 657 ms | 57468 KB | Output is correct |
89 | Correct | 1041 ms | 61304 KB | Output is correct |