#include <iostream>
#include <bits/stdc++.h>
using namespace std;
const long long MAXN = 210;
vector<pair<pair<long long,long long>,pair<long long,long long>>> edges;
vector<pair<int,int>> ans;
long long par[MAXN];
long long sz[MAXN];
long long getpar(long long a){
if(par[a] == a){
return a;
}
return par[a] = getpar(par[a]);
}
void merge(long long a,long long b){
a = getpar(a);
b = getpar(b);
if(a==b){
return;
}
if(sz[a]>sz[b]){
swap(a,b);
}
par[a] = b;
sz[b]+=sz[a];
}
int main(){
long long n,m;
cin>>n>>m;
long long sum1 = 0;
long long sum2 = 0;
for(long long i=1;i<=m;i++){
long long x,y;
cin>>x>>y;
long long w1,w2;
cin>>w1>>w2;
edges.push_back(make_pair(make_pair(w1,w2),make_pair(x,y)));
sum1+=w1;
sum2+=w2;
}
for(long long i=0;i<=n;i++){
par[i] = i;
sz[i] = 1;
}
if(m==n-1){
cout<<sum1<<" "<<sum2<<endl;
for(auto x:edges){
cout<<x.second.first<<" "<<x.second.second<<endl;
}
return 0;
}
sort(edges.begin(),edges.end());
long long res = 0;
for(auto e:edges){
long long x = e.second.first;
long long y = e.second.second;
long long w = e.first.first;
if(getpar(x)!=getpar(y)){
merge(x,y);
res+=w;
ans.push_back(make_pair(x,y));
}
}
cout<<res<<" "<<res<<endl;
for(auto x:ans){
cout<<x.first<<" "<<x.second<<endl;
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
384 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
256 KB |
Output is correct |
4 |
Correct |
5 ms |
384 KB |
Output is correct |
5 |
Correct |
3 ms |
384 KB |
Output is correct |
6 |
Correct |
5 ms |
384 KB |
Output is correct |
7 |
Correct |
7 ms |
384 KB |
Output is correct |
8 |
Correct |
18 ms |
1020 KB |
Output is correct |
9 |
Incorrect |
5 ms |
256 KB |
Output isn't correct |
10 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
11 |
Incorrect |
5 ms |
256 KB |
Output isn't correct |
12 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
13 |
Incorrect |
5 ms |
256 KB |
Output isn't correct |
14 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
15 |
Incorrect |
7 ms |
384 KB |
Output isn't correct |
16 |
Incorrect |
8 ms |
512 KB |
Output isn't correct |
17 |
Incorrect |
7 ms |
384 KB |
Output isn't correct |
18 |
Incorrect |
8 ms |
512 KB |
Output isn't correct |
19 |
Incorrect |
19 ms |
1020 KB |
Output isn't correct |
20 |
Incorrect |
18 ms |
1020 KB |
Output isn't correct |