#include<bits/stdc++.h>
using namespace std;
int T=340;
int a,b,c,d,e,i,j,ii,jj,zx,xc,tes,t,te,fx[100009],pi,msh[100009],sz[100009],cnt,bo[100009],ans[100009];
int qi,qqi;
int A,B,C,D,E,sub4;
stack <pair <int, int> > M,S;
pair <pair <int, int>, int> P[100009];
pair <int, pair <int, int> > Q[100009],p[100009];
pair <int, int> q[100009],qq[100009];
int fnd(int q){
while(msh[q]!=0) q=msh[q];
return q;
}
void mrg(int q, int w){
q=fnd(q);w=fnd(w);
if(q==w) return;
if(sz[q]<sz[w]) swap(q,w);
M.push(make_pair(w,msh[w]));
S.push(make_pair(q,sz[q]));
msh[w]=q;
sz[q]+=sz[w];
}
void rollback(){
msh[M.top().first]=M.top().second;
sz[S.top().first]=S.top().second;
M.pop();S.pop();
}
void ROLL(int q){
while(M.size()>q){
msh[M.top().first]=M.top().second;
sz[S.top().first]=S.top().second;
M.pop();S.pop();
}
}
int main(){
ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
cin>>a>>b;
for(i=1; i<=b; i++){
cin>>P[i].first.first>>P[i].first.second>>P[i].second;
P[i].second=-P[i].second;
}
cin>>tes;
for(t=1; t<=tes; t++){
cin>>Q[t].first>>Q[t].second.first>>Q[t].second.second;
Q[t].second.second=-Q[t].second.second;
if(Q[t].first==1) sub4=1;
}
if(sub4==0){
T=a;
for(t=1; t<=tes; t++){
ans[t]=-1;
}
for(t=T; ; t+=T){
te=t-T+1;
if(t>tes) t=tes;
if(te>t) break;
pi=0;
for(i=te; i<=t; i++){
if(Q[i].first==1){
fx[Q[i].second.first]=t;
}
}
for(i=1; i<=a; i++){
msh[i]=0;sz[i]=1;
}
while(M.size()) M.pop();
while(S.size()) S.pop();
for(i=1; i<=b; i++){
if(fx[i]==t) continue;
pi++;
p[pi].first=P[i].second;
p[pi].second=P[i].first;
}
sort(p+1,p+pi+1);
qi=0;qqi=0;
for(i=te; i<=t; i++){
if(Q[i].first==1){
}else{
qqi++;
qq[qqi].first=Q[i].second.second;
qq[qqi].second=i;
}
}
sort(qq+1,qq+qqi+1);
A=1;B=1;
for(i=1; i<=qqi; i++){
while(A<=pi&&p[A].first<=qq[i].first){
mrg(p[A].second.first,p[A].second.second);
A++;
}
E=M.size();
c=Q[qq[i].second].second.first;d=qq[i].second;
ans[d]=sz[fnd(c)];
}
for(i=te; i<=t; i++){
if(Q[i].first==1){
P[Q[i].second.first].second=Q[i].second.second;
}
}
}
for(t=1; t<=tes; t++){
if(ans[t]==-1) continue;
cout<<ans[t]<<endl;
}
return 0;
}
for(t=1; t<=tes; t++){
ans[t]=-1;
}
for(t=T; ; t+=T){
te=t-T+1;
if(t>tes) t=tes;
if(te>t) break;
pi=0;
for(i=te; i<=t; i++){
if(Q[i].first==1){
fx[Q[i].second.first]=t;
}
}
for(i=1; i<=a; i++){
msh[i]=0;sz[i]=1;
}
while(M.size()) M.pop();
while(S.size()) S.pop();
for(i=1; i<=b; i++){
if(fx[i]==t) continue;
pi++;
p[pi].first=P[i].second;
p[pi].second=P[i].first;
}
sort(p+1,p+pi+1);
qi=0;qqi=0;
for(i=te; i<=t; i++){
if(Q[i].first==1){
}else{
qqi++;
qq[qqi].first=Q[i].second.second;
qq[qqi].second=i;
}
}
sort(qq+1,qq+qqi+1);
A=1;B=1;
for(i=1; i<=qqi; i++){
while(A<=pi&&p[A].first<=qq[i].first){
mrg(p[A].second.first,p[A].second.second);
A++;
}
E=M.size();
cnt++;
for(j=qq[i].second; j>=te; j--){
if(Q[j].first==2) continue;
if(bo[Q[j].second.first]==cnt){
}else{
bo[Q[j].second.first]=cnt;
if(Q[j].second.second<=qq[i].first){
mrg(P[Q[j].second.first].first.first,P[Q[j].second.first].first.second);
}
}
}
for(j=qq[i].second+1; j<=t; j++){
if(Q[j].first==1&&bo[Q[j].second.first]!=cnt){
if(P[Q[j].second.first].second<=qq[i].first){
mrg(P[Q[j].second.first].first.first,P[Q[j].second.first].first.second);
}
bo[Q[j].second.first]=cnt;
}
}
c=Q[qq[i].second].second.first;d=qq[i].second;
ans[d]=sz[fnd(c)];
ROLL(E);
}
for(i=te; i<=t; i++){
if(Q[i].first==1){
P[Q[i].second.first].second=Q[i].second.second;
}
}
}
for(t=1; t<=tes; t++){
if(ans[t]==-1) continue;
cout<<ans[t]<<endl;
}
return 0;
}
Compilation message
bridges.cpp: In function 'void ROLL(int)':
bridges.cpp:30:16: warning: comparison of integer expressions of different signedness: 'std::stack<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
30 | while(M.size()>q){
| ~~~~~~~~^~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
34 ms |
720 KB |
Output is correct |
4 |
Correct |
19 ms |
600 KB |
Output is correct |
5 |
Correct |
27 ms |
672 KB |
Output is correct |
6 |
Correct |
24 ms |
676 KB |
Output is correct |
7 |
Correct |
31 ms |
588 KB |
Output is correct |
8 |
Correct |
31 ms |
660 KB |
Output is correct |
9 |
Correct |
33 ms |
612 KB |
Output is correct |
10 |
Correct |
31 ms |
604 KB |
Output is correct |
11 |
Correct |
31 ms |
672 KB |
Output is correct |
12 |
Correct |
33 ms |
664 KB |
Output is correct |
13 |
Correct |
35 ms |
716 KB |
Output is correct |
14 |
Correct |
33 ms |
588 KB |
Output is correct |
15 |
Correct |
32 ms |
668 KB |
Output is correct |
16 |
Correct |
33 ms |
604 KB |
Output is correct |
17 |
Correct |
32 ms |
612 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2441 ms |
4936 KB |
Output is correct |
2 |
Correct |
2427 ms |
5260 KB |
Output is correct |
3 |
Correct |
2439 ms |
5052 KB |
Output is correct |
4 |
Correct |
2443 ms |
4952 KB |
Output is correct |
5 |
Correct |
2443 ms |
4932 KB |
Output is correct |
6 |
Correct |
2789 ms |
5140 KB |
Output is correct |
7 |
Correct |
2753 ms |
5092 KB |
Output is correct |
8 |
Correct |
2807 ms |
5252 KB |
Output is correct |
9 |
Correct |
177 ms |
2244 KB |
Output is correct |
10 |
Correct |
2205 ms |
5168 KB |
Output is correct |
11 |
Correct |
2373 ms |
5184 KB |
Output is correct |
12 |
Correct |
2473 ms |
5612 KB |
Output is correct |
13 |
Correct |
2281 ms |
5344 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1698 ms |
4116 KB |
Output is correct |
2 |
Correct |
798 ms |
2756 KB |
Output is correct |
3 |
Correct |
1840 ms |
4176 KB |
Output is correct |
4 |
Correct |
1691 ms |
4244 KB |
Output is correct |
5 |
Correct |
181 ms |
2244 KB |
Output is correct |
6 |
Correct |
1742 ms |
4152 KB |
Output is correct |
7 |
Correct |
1668 ms |
4036 KB |
Output is correct |
8 |
Correct |
1620 ms |
4116 KB |
Output is correct |
9 |
Correct |
1645 ms |
4252 KB |
Output is correct |
10 |
Correct |
1598 ms |
4128 KB |
Output is correct |
11 |
Correct |
1434 ms |
4036 KB |
Output is correct |
12 |
Correct |
1364 ms |
3988 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
260 ms |
6468 KB |
Output is correct |
2 |
Correct |
178 ms |
3472 KB |
Output is correct |
3 |
Correct |
318 ms |
4684 KB |
Output is correct |
4 |
Correct |
341 ms |
4824 KB |
Output is correct |
5 |
Correct |
242 ms |
8516 KB |
Output is correct |
6 |
Correct |
252 ms |
10044 KB |
Output is correct |
7 |
Correct |
241 ms |
8600 KB |
Output is correct |
8 |
Correct |
227 ms |
7524 KB |
Output is correct |
9 |
Correct |
224 ms |
7576 KB |
Output is correct |
10 |
Correct |
223 ms |
7536 KB |
Output is correct |
11 |
Correct |
254 ms |
8624 KB |
Output is correct |
12 |
Correct |
235 ms |
8772 KB |
Output is correct |
13 |
Correct |
242 ms |
8824 KB |
Output is correct |
14 |
Correct |
240 ms |
8548 KB |
Output is correct |
15 |
Correct |
245 ms |
8624 KB |
Output is correct |
16 |
Correct |
269 ms |
9956 KB |
Output is correct |
17 |
Correct |
290 ms |
9888 KB |
Output is correct |
18 |
Correct |
265 ms |
10052 KB |
Output is correct |
19 |
Correct |
274 ms |
9964 KB |
Output is correct |
20 |
Correct |
262 ms |
9184 KB |
Output is correct |
21 |
Correct |
254 ms |
9080 KB |
Output is correct |
22 |
Correct |
269 ms |
9852 KB |
Output is correct |
23 |
Correct |
248 ms |
7792 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2441 ms |
4936 KB |
Output is correct |
2 |
Correct |
2427 ms |
5260 KB |
Output is correct |
3 |
Correct |
2439 ms |
5052 KB |
Output is correct |
4 |
Correct |
2443 ms |
4952 KB |
Output is correct |
5 |
Correct |
2443 ms |
4932 KB |
Output is correct |
6 |
Correct |
2789 ms |
5140 KB |
Output is correct |
7 |
Correct |
2753 ms |
5092 KB |
Output is correct |
8 |
Correct |
2807 ms |
5252 KB |
Output is correct |
9 |
Correct |
177 ms |
2244 KB |
Output is correct |
10 |
Correct |
2205 ms |
5168 KB |
Output is correct |
11 |
Correct |
2373 ms |
5184 KB |
Output is correct |
12 |
Correct |
2473 ms |
5612 KB |
Output is correct |
13 |
Correct |
2281 ms |
5344 KB |
Output is correct |
14 |
Correct |
1698 ms |
4116 KB |
Output is correct |
15 |
Correct |
798 ms |
2756 KB |
Output is correct |
16 |
Correct |
1840 ms |
4176 KB |
Output is correct |
17 |
Correct |
1691 ms |
4244 KB |
Output is correct |
18 |
Correct |
181 ms |
2244 KB |
Output is correct |
19 |
Correct |
1742 ms |
4152 KB |
Output is correct |
20 |
Correct |
1668 ms |
4036 KB |
Output is correct |
21 |
Correct |
1620 ms |
4116 KB |
Output is correct |
22 |
Correct |
1645 ms |
4252 KB |
Output is correct |
23 |
Correct |
1598 ms |
4128 KB |
Output is correct |
24 |
Correct |
1434 ms |
4036 KB |
Output is correct |
25 |
Correct |
1364 ms |
3988 KB |
Output is correct |
26 |
Correct |
2468 ms |
5180 KB |
Output is correct |
27 |
Correct |
2724 ms |
5224 KB |
Output is correct |
28 |
Correct |
2602 ms |
4964 KB |
Output is correct |
29 |
Correct |
2408 ms |
5080 KB |
Output is correct |
30 |
Correct |
2700 ms |
5176 KB |
Output is correct |
31 |
Correct |
2794 ms |
5092 KB |
Output is correct |
32 |
Correct |
2707 ms |
5236 KB |
Output is correct |
33 |
Correct |
2540 ms |
4996 KB |
Output is correct |
34 |
Correct |
2571 ms |
4984 KB |
Output is correct |
35 |
Correct |
2573 ms |
4952 KB |
Output is correct |
36 |
Correct |
2426 ms |
4976 KB |
Output is correct |
37 |
Correct |
2434 ms |
5276 KB |
Output is correct |
38 |
Correct |
2415 ms |
5036 KB |
Output is correct |
39 |
Correct |
2421 ms |
5068 KB |
Output is correct |
40 |
Correct |
2402 ms |
5140 KB |
Output is correct |
41 |
Correct |
2417 ms |
5104 KB |
Output is correct |
42 |
Correct |
2117 ms |
5004 KB |
Output is correct |
43 |
Correct |
2097 ms |
5136 KB |
Output is correct |
44 |
Correct |
2089 ms |
5000 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
34 ms |
720 KB |
Output is correct |
4 |
Correct |
19 ms |
600 KB |
Output is correct |
5 |
Correct |
27 ms |
672 KB |
Output is correct |
6 |
Correct |
24 ms |
676 KB |
Output is correct |
7 |
Correct |
31 ms |
588 KB |
Output is correct |
8 |
Correct |
31 ms |
660 KB |
Output is correct |
9 |
Correct |
33 ms |
612 KB |
Output is correct |
10 |
Correct |
31 ms |
604 KB |
Output is correct |
11 |
Correct |
31 ms |
672 KB |
Output is correct |
12 |
Correct |
33 ms |
664 KB |
Output is correct |
13 |
Correct |
35 ms |
716 KB |
Output is correct |
14 |
Correct |
33 ms |
588 KB |
Output is correct |
15 |
Correct |
32 ms |
668 KB |
Output is correct |
16 |
Correct |
33 ms |
604 KB |
Output is correct |
17 |
Correct |
32 ms |
612 KB |
Output is correct |
18 |
Correct |
2441 ms |
4936 KB |
Output is correct |
19 |
Correct |
2427 ms |
5260 KB |
Output is correct |
20 |
Correct |
2439 ms |
5052 KB |
Output is correct |
21 |
Correct |
2443 ms |
4952 KB |
Output is correct |
22 |
Correct |
2443 ms |
4932 KB |
Output is correct |
23 |
Correct |
2789 ms |
5140 KB |
Output is correct |
24 |
Correct |
2753 ms |
5092 KB |
Output is correct |
25 |
Correct |
2807 ms |
5252 KB |
Output is correct |
26 |
Correct |
177 ms |
2244 KB |
Output is correct |
27 |
Correct |
2205 ms |
5168 KB |
Output is correct |
28 |
Correct |
2373 ms |
5184 KB |
Output is correct |
29 |
Correct |
2473 ms |
5612 KB |
Output is correct |
30 |
Correct |
2281 ms |
5344 KB |
Output is correct |
31 |
Correct |
1698 ms |
4116 KB |
Output is correct |
32 |
Correct |
798 ms |
2756 KB |
Output is correct |
33 |
Correct |
1840 ms |
4176 KB |
Output is correct |
34 |
Correct |
1691 ms |
4244 KB |
Output is correct |
35 |
Correct |
181 ms |
2244 KB |
Output is correct |
36 |
Correct |
1742 ms |
4152 KB |
Output is correct |
37 |
Correct |
1668 ms |
4036 KB |
Output is correct |
38 |
Correct |
1620 ms |
4116 KB |
Output is correct |
39 |
Correct |
1645 ms |
4252 KB |
Output is correct |
40 |
Correct |
1598 ms |
4128 KB |
Output is correct |
41 |
Correct |
1434 ms |
4036 KB |
Output is correct |
42 |
Correct |
1364 ms |
3988 KB |
Output is correct |
43 |
Correct |
260 ms |
6468 KB |
Output is correct |
44 |
Correct |
178 ms |
3472 KB |
Output is correct |
45 |
Correct |
318 ms |
4684 KB |
Output is correct |
46 |
Correct |
341 ms |
4824 KB |
Output is correct |
47 |
Correct |
242 ms |
8516 KB |
Output is correct |
48 |
Correct |
252 ms |
10044 KB |
Output is correct |
49 |
Correct |
241 ms |
8600 KB |
Output is correct |
50 |
Correct |
227 ms |
7524 KB |
Output is correct |
51 |
Correct |
224 ms |
7576 KB |
Output is correct |
52 |
Correct |
223 ms |
7536 KB |
Output is correct |
53 |
Correct |
254 ms |
8624 KB |
Output is correct |
54 |
Correct |
235 ms |
8772 KB |
Output is correct |
55 |
Correct |
242 ms |
8824 KB |
Output is correct |
56 |
Correct |
240 ms |
8548 KB |
Output is correct |
57 |
Correct |
245 ms |
8624 KB |
Output is correct |
58 |
Correct |
269 ms |
9956 KB |
Output is correct |
59 |
Correct |
290 ms |
9888 KB |
Output is correct |
60 |
Correct |
265 ms |
10052 KB |
Output is correct |
61 |
Correct |
274 ms |
9964 KB |
Output is correct |
62 |
Correct |
262 ms |
9184 KB |
Output is correct |
63 |
Correct |
254 ms |
9080 KB |
Output is correct |
64 |
Correct |
269 ms |
9852 KB |
Output is correct |
65 |
Correct |
248 ms |
7792 KB |
Output is correct |
66 |
Correct |
2468 ms |
5180 KB |
Output is correct |
67 |
Correct |
2724 ms |
5224 KB |
Output is correct |
68 |
Correct |
2602 ms |
4964 KB |
Output is correct |
69 |
Correct |
2408 ms |
5080 KB |
Output is correct |
70 |
Correct |
2700 ms |
5176 KB |
Output is correct |
71 |
Correct |
2794 ms |
5092 KB |
Output is correct |
72 |
Correct |
2707 ms |
5236 KB |
Output is correct |
73 |
Correct |
2540 ms |
4996 KB |
Output is correct |
74 |
Correct |
2571 ms |
4984 KB |
Output is correct |
75 |
Correct |
2573 ms |
4952 KB |
Output is correct |
76 |
Correct |
2426 ms |
4976 KB |
Output is correct |
77 |
Correct |
2434 ms |
5276 KB |
Output is correct |
78 |
Correct |
2415 ms |
5036 KB |
Output is correct |
79 |
Correct |
2421 ms |
5068 KB |
Output is correct |
80 |
Correct |
2402 ms |
5140 KB |
Output is correct |
81 |
Correct |
2417 ms |
5104 KB |
Output is correct |
82 |
Correct |
2117 ms |
5004 KB |
Output is correct |
83 |
Correct |
2097 ms |
5136 KB |
Output is correct |
84 |
Correct |
2089 ms |
5000 KB |
Output is correct |
85 |
Execution timed out |
3069 ms |
10180 KB |
Time limit exceeded |
86 |
Halted |
0 ms |
0 KB |
- |