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ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#746704 | #8136. Rebellious Edge | ucup-team4074 | WA | 46ms | 25512kb | C++17 | 1.7kb | 2024-11-14 15:18:43 | 2024-11-14 15:18:48 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define fast ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
using namespace std;
void solve();
int tt=0,flag=0;
int t = 1;
signed main() {
fast
cin >> t;
while (t--) solve();
}
const int maxn=500010;
int n,m,inf=1e18,id=0;
struct A{int x,y,z;
};
A e[maxn];
int v[maxn];
bool v2[maxn];
int d[maxn];
int f[maxn];
vector<int>w[maxn];
int root=0;
void add(int x,int y,int z)
{
e[++id]={x,y,z};
}
void dfs(int x)
{
for(int i=0;i<w[x].size();i++)
{
if(v[w[x][i]])continue;
v[w[x][i]]=v[x];
dfs(w[x][i]);
}
}
void ch2(int x)
{
if(!v2[f[x]])
{
v2[f[x]]=1;
ch2(f[x]);
}
}
int ch()
{
int ans=0;
for(int i=1;i<=n;i++)
{
d[i]=inf;
f[i]=0;
v[i]=0;
v2[i]=0;
w[i].clear();
}
d[1]=0;
for(int i=1;i<=m;i++)
{
if(e[i].y==1)continue;
if(e[i].z<d[e[i].y])
{
f[e[i].y]=e[i].x;
d[e[i].y]=e[i].z;
}
}
int s=0;
for(int i=1;i<=n;i++)
{
if(f[i]==0)continue;
w[f[i]].push_back(i);
ans+=d[i];
}
for(int i=1;i<=n;i++)
{
if(!v[i])
{
s++;
v[i]=s;
dfs(i);
}
}
if(s==1)return ans;
ch2(root);
s=inf;
for(int i=1;i<=m;i++)
{
if(v2[e[i].y]&&v[e[i].x]!=v[e[i].y])
{
s=min(s,e[i].z-d[e[i].y]);
}
}
return ans+s;
}
void solve()
{
id=0;
tt++;
root=0;
cin>>n>>m;
for(int i=1;i<=m;i++)
{
int x,y,z;
cin>>x>>y>>z;
if(flag&&tt==313)cout<<x<<"!!!"<<y<<"!!"<<z<<"\n";
if(t==50000&&tt==1&&x==1&&y==3)flag=1;
if(y<x)root=y;
add(x,y,z);
}
if(!flag)cout<<ch()<<"\n";
}
/*
1
4 5
2 3 39917807
1 2 830477742
3 4 670700294
1 4 894960672
3 2 142909800
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 22460kb
input:
3 5 6 1 2 4 1 3 2 2 3 0 3 4 1 4 5 1 5 2 1 4 4 1 2 4 1 3 6 1 4 8 4 2 1000000 3 3 1 2 100 2 1 10 2 3 1000
output:
5 18 1100
result:
ok 3 number(s): "5 18 1100"
Test #2:
score: 0
Accepted
time: 38ms
memory: 25512kb
input:
50000 4 5 2 4 998973548 2 3 501271695 4 1 778395982 1 4 32454891 1 2 757288934 4 5 1 4 720856669 2 3 665098951 3 4 407461517 2 1 866914401 1 2 457859826 4 5 1 2 75288664 1 4 624893594 3 2 458973866 2 4 769074655 2 3 834773751 4 5 2 3 237060634 2 4 297307882 3 4 200383586 1 2 42856502 3 1 16574713 4 ...
output:
1291015520 1530420294 1534956009 480300722 1366795927 1541095843 2493849488 858095911 1034153425 793861088 605832428 1051598350 612891589 1265994009 517769091 1678219738 1556463491 93634961 960978736 984886788 1696503797 1002892611 1969660290 1431417780 1515267731 977157479 1937478556 654475526 1401...
result:
ok 50000 numbers
Test #3:
score: -100
Wrong Answer
time: 46ms
memory: 22004kb
input:
50000 4 6 1 3 754771977 2 3 517886121 1 4 392356144 1 2 702785740 3 4 888230940 2 1 829304957 4 6 2 4 255940037 1 2 380616616 1 4 819140865 3 4 36965607 1 3 496378345 4 3 652252309 4 6 2 4 179216787 4 2 401136502 1 2 715271531 1 3 859345710 3 4 24470489 1 4 148650889 4 6 3 2 20348069 1 2 152861663 1...
output:
1613028005 913960568 1284952701 1294564551 199037829 1236121455 983447828 1161647829 1289612543 2444304029 431872921 1272140390 949528400 2328941976 696541797 363553357 999320657 2221495861 879052116 1287531701 912524980 1072419431 1187727045 1571845059 1184110956 1136184594 430092563 1132894799 962...
result:
wrong answer 313th numbers differ - expected: '1326090611', found: '1821468187'