Submission #2168816
Source Code Expand
#include<cstdio> #include<algorithm> #include<cstring> #define ll long long struct r{ int u,v,w; }e[400050]; int w[400050],fa[200050],cnt,n,m; ll ans; int get_fa(int u){return fa[u]==u ? u:fa[u]=get_fa(fa[u]);} bool cmp(r a,r b){return a.w<b.w;} int main(){ scanf("%d%d",&n,&m); memset(w,127,sizeof w); for (int i=1;i<=m;i++){ scanf("%d%d%d",&e[i].u,&e[i].v,&e[i].w); w[e[i].u]=std::min(w[e[i].u],e[i].w+1); w[e[i].v]=std::min(w[e[i].v],e[i].w+2); } for (int i=0;i<n;i++) fa[i]=i; for (int i=1;i<(n<<1);i++) w[i]=std::min(w[i],w[i-1]+2); for (int i=0;i<n;i++) e[++m]=(r){i,(i+1)%n,std::min(w[i],w[i+n])}; std::sort(e+1,e+m+1,cmp); for (int i=1;i<=m;i++){ if (get_fa(e[i].u)==get_fa(e[i].v)) continue; fa[e[i].v]=fa[e[i].u]; ans+=1ll*e[i].w; cnt++; if (cnt==n-1) { printf("%lld",ans); return 0; } } }
Submission Info
Submission Time | |
---|---|
Task | G - Zigzag MST |
User | vjudge2 |
Language | Bash (GNU bash v4.3.11) |
Score | 0 |
Code Size | 840 Byte |
Status | RE |
Exec Time | 4 ms |
Memory | 556 KB |
Judge Result
Set Name | sample | all | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1300 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
sample | sample-01.txt, sample-02.txt, sample-03.txt |
all | sample-01.txt, sample-02.txt, sample-03.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, sample-01.txt, sample-02.txt, sample-03.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | RE | 4 ms | 548 KB |
01-02.txt | RE | 4 ms | 548 KB |
01-03.txt | RE | 4 ms | 548 KB |
01-04.txt | RE | 4 ms | 548 KB |
01-05.txt | RE | 4 ms | 548 KB |
01-06.txt | RE | 4 ms | 548 KB |
01-07.txt | RE | 4 ms | 548 KB |
01-08.txt | RE | 4 ms | 548 KB |
01-09.txt | RE | 4 ms | 548 KB |
01-10.txt | RE | 4 ms | 548 KB |
01-11.txt | RE | 4 ms | 544 KB |
01-12.txt | RE | 4 ms | 548 KB |
01-13.txt | RE | 4 ms | 548 KB |
01-14.txt | RE | 4 ms | 548 KB |
01-15.txt | RE | 4 ms | 556 KB |
01-16.txt | RE | 4 ms | 548 KB |
01-17.txt | RE | 4 ms | 548 KB |
01-18.txt | RE | 4 ms | 548 KB |
01-19.txt | RE | 4 ms | 548 KB |
01-20.txt | RE | 4 ms | 548 KB |
01-21.txt | RE | 4 ms | 548 KB |
01-22.txt | RE | 4 ms | 548 KB |
01-23.txt | RE | 4 ms | 556 KB |
01-24.txt | RE | 4 ms | 548 KB |
01-25.txt | RE | 4 ms | 556 KB |
01-26.txt | RE | 4 ms | 548 KB |
01-27.txt | RE | 4 ms | 548 KB |
01-28.txt | RE | 4 ms | 548 KB |
01-29.txt | RE | 4 ms | 548 KB |
01-30.txt | RE | 4 ms | 548 KB |
sample-01.txt | RE | 4 ms | 552 KB |
sample-02.txt | RE | 4 ms | 548 KB |
sample-03.txt | RE | 4 ms | 548 KB |