| Task: | Tietoverkko |
| Sender: | mooc.fi~486604 |
| Submission time: | 2021-10-06 12:15:54 +0300 |
| Language: | C++ (C++11) |
| Status: | READY |
| Result: | 10 |
| group | verdict | score |
|---|---|---|
| #1 | ACCEPTED | 10 |
| #2 | WRONG ANSWER | 0 |
| #3 | WRONG ANSWER | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | ACCEPTED | 0.01 s | 1, 2, 3 | details |
| #2 | WRONG ANSWER | 0.08 s | 2, 3 | details |
| #3 | RUNTIME ERROR | 0.25 s | 3 | details |
Code
#include <iostream>
#include <vector>
#include <map>
using namespace std;
int N;
vector<pair<int,int>> v[200000];
long long int sum;
int vasen=0;
int oikea= 0;
bool tama=false;
map<pair<int, int>, int> juu;
vector<int> kerro;
void haku(int s, int e, long long int target){
vasen++;
oikea++;
for(auto u: v[s]){
if(u.first!=e&&u.second==target){
juu[{s, u.first}]=1;
int temp1=vasen;
int temp2= oikea;
vasen=0;
haku(u.first, s, target);
kerro.push_back(vasen);
vasen=temp1;
oikea=temp2;
tama=true; }
if(u.first!=e&&u.second>target) haku(u.first, s, target);
}
}
int main()
{
long long int c;
int a ,b , i;
sum=0;
cin>>N;
vector<pair<int, int>> di;
vector<long long int> sro;
for(i=0; i<N-1; i++){
cin>>a>>b>>c;
di.push_back({a,b});
sro.push_back(c);
v[a].push_back({b,c});
v[b].push_back({a,c}); //toisessa testissä 5000 ja miljardi, kolmannessa 200 000 ja miljardi. todennäköisesti
//johtuu siis miljardista.
}
int count=-1;
for(auto kl: di){
count++;
int kaari=sro[count];
if(juu[{kl.first,kl.second}]||juu[{kl.second,kl.first}])
continue;
vasen=0;
haku(kl.first, kl.second , kaari);
int kpp=vasen;
oikea=0;
haku(kl.second, kl.first, kaari);
juu[{kl.second, kl.first}]=1;
if(tama){
kerro.push_back(kpp);
kerro.push_back(oikea);
int maara=kerro.size();
for(int ri=0; ri<maara; ri++){
for( int rj=ri; rj<maara; rj++){
if(ri==rj) continue;
sum+=kaari*kerro[ri]*kerro[rj]; }
}
tama=false;
kerro.clear();
continue;
}
sum+= kaari*kpp*oikea;
}
cout<<sum;
return 0;
}Test details
Test 1
Group: 1, 2, 3
Verdict: ACCEPTED
| input |
|---|
| 100 1 2 74 1 3 100 2 4 50 3 5 40 ... |
| correct output |
|---|
| 88687 |
| user output |
|---|
| 88687 |
Test 2
Group: 2, 3
Verdict: WRONG ANSWER
| input |
|---|
| 5000 1 2 613084013 1 3 832364259 2 4 411999902 3 5 989696303 ... |
| correct output |
|---|
| 1103702320243776 |
| user output |
|---|
| 1794100716608 |
Test 3
Group: 3
Verdict: RUNTIME ERROR
| input |
|---|
| 200000 1 2 613084013 1 3 832364259 2 4 411999902 3 5 989696303 ... |
| correct output |
|---|
| 1080549209850010931 |
| user output |
|---|
| (empty) |
Error:
terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc
