#include <bits/stdc++.h>
#define DIM 300010
#define INF 2000000000
using namespace std;
/*vector <int> L[DIM],w[DIM];
set <int> edg[DIM];
bitset <DIM> v[DIM];
pair <int,int> pct[DIM],sol[DIM];
deque <int> c,s;
int viz[DIM],level[DIM],low[DIM],f[DIM],what_comp[DIM],g[DIM];
int n,m,i,j,a,b,x,y,val,idx,nr_comp;
*/
vector <int> L[DIM],inv[DIM],est,vest;
vector <pair<int,int> > d;
int f[DIM],viz[DIM],sol[DIM],dr[DIM],st[DIM];
pair <int,int> pct[DIM];
deque <int> c;
int n,m,a,b,x,y,i,j,val,maxi,mini,poz;
void dfs (int nod){
viz[nod] = 1;
if (f[nod] == 2){
if (pct[nod].second > maxi)
maxi = pct[nod].second, poz = nod;
}
for (auto vecin : L[nod]){
if (!viz[vecin])
dfs (vecin);
}
}
void dfs2 (int nod){
viz[nod] = 1;
if (f[nod] == 2){
if (pct[nod].second < mini)
mini = pct[nod].second, poz = nod;
}
for (auto vecin : L[nod]){
if (!viz[vecin])
dfs (vecin);
}
}
inline int cmp (int a, int b){
return pct[a].second < pct[b].second;
}
int cautare_binara (vector<int> v, int x){
int st = 0, dr = v.size()-1;
while (st <= dr){
int mid = (st+dr)>>1;
if (pct[v[mid]].second == pct[x].second)
return mid;
if (pct[v[mid]].second < pct[x].second)
st = mid+1;
else dr = mid-1;
}
}
int main (){
//ifstream cin ("date.in");
//ofstream cout ("date.out");
cin>>n>>m>>a>>b;
for (i=1;i<=n;i++){
cin>>pct[i].first>>pct[i].second;
if (pct[i].first == 0)
f[i] = 1; /// vest
if (pct[i].first == a)
f[i] = 2; /// est
}
for (i=1;i<=m;i++){
cin>>x>>y>>val;
L[x].push_back(y);
inv[y].push_back(x);
if (val == 2){
L[y].push_back(x);
inv[x].push_back(y);
}
}
/// pastrez doar nodurile din dreapta care sunt reachable din stanga
for (i=1;i<=n;i++)
if (f[i] == 1){
c.push_back(i);
viz[i] = 1;
}
while (!c.empty()){
int nod = c.front();
c.pop_front();
for (auto vecin : L[nod]){
if (!viz[vecin]){
viz[vecin] = 1;
c.push_back(vecin);
}}}
for (i=1;i<=n;i++)
if (f[i] == 2 && viz[i])
est.push_back(i);
/// pastrez in stanga doar nodurile care conteaza si din care pot sa ajung in dr
c.clear();
memset (viz,0,sizeof viz);
for (i=1;i<=n;i++)
if (f[i] == 2){
c.push_back(i);
viz[i] = 1;
}
while (!c.empty()){
int nod = c.front();
c.pop_front();
for (auto vecin : inv[nod]){
if (!viz[vecin]){
viz[vecin] = 1;
c.push_back(vecin);
}}}
for (i=1;i<=n;i++)
if (f[i] == 1 && viz[i])
vest.push_back(i);
sort (vest.begin(),vest.end(),cmp);
memset (viz,0,sizeof viz);
for (int i=0;i<vest.size();i++){
dfs (vest[i]);
dr[i] = poz;
}
memset (viz,0,sizeof viz);
mini = INF, poz = 0;
for (int i=0;i<vest.size();i++){
dfs2 (vest[i]);
st[i] = poz;
}
sort (est.begin(),est.end(),cmp);
for (i=0;i<vest.size();i++)
sol[vest[i]] = cautare_binara (est,dr[i]) - cautare_binara (est,st[i]) + 1;
for (i=1;i<=n;i++)
if (f[i] == 1)
d.push_back(make_pair(pct[i].second,sol[i]));
sort (d.begin(),d.end());
reverse(d.begin(),d.end());
for (auto it : d)
cout<<it.second<<"\n";
return 0;
}
Compilation message
tra.cpp: In function 'int main()':
tra.cpp:136:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
136 | for (int i=0;i<vest.size();i++){
| ~^~~~~~~~~~~~
tra.cpp:143:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
143 | for (int i=0;i<vest.size();i++){
| ~^~~~~~~~~~~~
tra.cpp:150:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
150 | for (i=0;i<vest.size();i++)
| ~^~~~~~~~~~~~
tra.cpp: In function 'int cautare_binara(std::vector<int>, int)':
tra.cpp:63:1: warning: control reaches end of non-void function [-Wreturn-type]
63 | }
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
11 ms |
15564 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
11 ms |
15552 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
10 ms |
15564 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
13 ms |
15692 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
43 ms |
17176 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
100 ms |
19560 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
205 ms |
23436 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
331 ms |
26148 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
495 ms |
32144 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
776 ms |
41612 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1844 ms |
58868 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
504 ms |
33760 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
