Submission #2178442
Source Code Expand
#include <cstdio>
#include <algorithm>
using namespace std;
struct init{
int x,y;
long long z;
}e[600007];
int n,m;
int f[200007];
long long d[200007];
long long ans;
bool cmp(init x,init y)
{
return x.z<y.z;
}
int find(int k)
{
if(f[k]==k) return k;
return f[k]=find(f[k]);
}
void kruskal()
{
int t=0;
for(int i=1;i<=n;++i) f[i]=i;
for(int i=1;i<=m+n;++i) {
int x=find(e[i].x),y=find(e[i].y);
if(x!=y)
{
f[x]=y;
ans+=e[i].z;
if((++t)==n-1) break;
}
}
return ;
}
int main()
{
scanf("%d%d",&n,&m);
for(int i=0;i<=n;++i) d[i]=1e9*1e9;
for(int i=1;i<=m;++i)
{
scanf("%d%d%d",&e[i].x,&e[i].y,&e[i].z);
d[e[i].x]=min(d[e[i].x],e[i].z+1);
d[e[i].y]=min(d[e[i].y],e[i].z+2);
}
for(int i=1;i<=2;++i)
for(int j=1;j<=n;++j)
d[(j%n)]=min(d[(j%n)],d[j-1]+2);
for(int i=1;i<=n;++i)
e[m+i].x=i%n,e[m+i].y=(i+1)%n,e[m+i].z=d[(i%n)];
sort(e+1,e+n+m+1,cmp);
kruskal();printf("%lld\n",ans);
return 0;
}
Submission Info
Submission Time
2018-03-10 16:25:28+0900
Task
G - Zigzag MST
User
vjudge5
Language
C++14 (GCC 5.4.1)
Score
1300
Code Size
939 Byte
Status
AC
Exec Time
117 ms
Memory
10624 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:47:41: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long long int*’ [-Wformat=]
scanf("%d%d%d",&e[i].x,&e[i].y,&e[i].z);
^
./Main.cpp:43:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&m);
^
./Main.cpp:47:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d",&e[i].x,&e[i].y,&e[i].z);
^
Judge Result
Set Name
sample
all
Score / Max Score
0 / 0
1300 / 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
AC
1 ms
2176 KB
01-02.txt
AC
64 ms
4224 KB
01-03.txt
AC
99 ms
10624 KB
01-04.txt
AC
34 ms
8576 KB
01-05.txt
AC
23 ms
7424 KB
01-06.txt
AC
28 ms
7808 KB
01-07.txt
AC
23 ms
6656 KB
01-08.txt
AC
23 ms
6400 KB
01-09.txt
AC
26 ms
6272 KB
01-10.txt
AC
61 ms
8320 KB
01-11.txt
AC
85 ms
7424 KB
01-12.txt
AC
98 ms
10368 KB
01-13.txt
AC
100 ms
10368 KB
01-14.txt
AC
102 ms
10368 KB
01-15.txt
AC
101 ms
10368 KB
01-16.txt
AC
100 ms
10368 KB
01-17.txt
AC
99 ms
10368 KB
01-18.txt
AC
82 ms
10368 KB
01-19.txt
AC
23 ms
6656 KB
01-20.txt
AC
23 ms
6272 KB
01-21.txt
AC
45 ms
8320 KB
01-22.txt
AC
87 ms
10368 KB
01-23.txt
AC
87 ms
10368 KB
01-24.txt
AC
23 ms
6272 KB
01-25.txt
AC
117 ms
10368 KB
01-26.txt
AC
33 ms
6272 KB
01-27.txt
AC
27 ms
6272 KB
01-28.txt
AC
73 ms
8320 KB
01-29.txt
AC
85 ms
7680 KB
01-30.txt
AC
98 ms
10368 KB
sample-01.txt
AC
1 ms
2176 KB
sample-02.txt
AC
1 ms
2176 KB
sample-03.txt
AC
1 ms
2176 KB