CODE FESTIVAL 2016 Final

Submission #1178680

Source codeソースコード

#include<bits/stdc++.h>
#define N 400005
#define LL long long
using namespace std;
int n,m,a[N],f[N]; LL ans;
struct edge{
	int x,y,z;
	edge(int _x=0,int _y=0,int _z=0){ x=_x,y=_y,z=_z;}
}G[N];
int find(int x){ return f[x] ? f[x]=find(f[x]) : x;}
bool cmp(edge p,edge q){ return p.z<q.z;}
int main()
{
	int i,fx,fy;
	scanf("%d %d",&n,&m);
	memset(a,127,sizeof(a));
	for(i=1;i<=m;i++){
		scanf("%d %d %d",&G[i].x,&G[i].y,&G[i].z);
		G[i].x++,G[i].y++;
		a[G[i].x]=min(a[G[i].x],G[i].z+1);
		a[G[i].y]=min(a[G[i].y],G[i].z+2);
	  }
	for(i=2;i<=2*n;i++)
		a[i]=min(a[i],a[i-1]+2);
	for(i=1;i<=n;i++)
		G[++m]=edge(i,i%n+1,min(a[i],a[i+n]));
	sort(G+1,G+m+1,cmp);
	for(i=1;i<=m;i++){
		fx=find(G[i].x);
		fy=find(G[i].y);
		if(fx!=fy)
			f[fx]=fy,ans+=G[i].z;
	  }
	cout<<ans;
	return 0;
}

Submission

Task問題 G - Zigzag MST
User nameユーザ名 MemorySlices
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 1300
Source lengthソースコード長 822 Byte
File nameファイル名
Exec time実行時間 119 ms
Memory usageメモリ使用量 11008 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d",&n,&m);
^
./Main.cpp:18:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d %d",&G[i].x,&G[i].y,&G[i].z);
^

Test case

Set

Set name Score得点 / Max score Cases
sample - sample-01.txt,sample-02.txt,sample-03.txt
all 1300 / 1300 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

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01-01.txt AC 4 ms 7936 KB
01-02.txt AC 70 ms 7936 KB
01-03.txt AC 103 ms 8192 KB
01-04.txt AC 33 ms 10240 KB
01-05.txt AC 22 ms 8960 KB
01-06.txt AC 28 ms 9472 KB
01-07.txt AC 23 ms 8320 KB
01-08.txt AC 23 ms 8064 KB
01-09.txt AC 28 ms 7936 KB
01-10.txt AC 62 ms 7936 KB
01-11.txt AC 89 ms 7936 KB
01-12.txt AC 102 ms 7936 KB
01-13.txt AC 103 ms 7936 KB
01-14.txt AC 103 ms 7936 KB
01-15.txt AC 105 ms 7936 KB
01-16.txt AC 102 ms 7936 KB
01-17.txt AC 103 ms 7936 KB
01-18.txt AC 84 ms 11008 KB
01-19.txt AC 23 ms 8320 KB
01-20.txt AC 24 ms 7936 KB
01-21.txt AC 44 ms 7936 KB
01-22.txt AC 87 ms 7936 KB
01-23.txt AC 87 ms 7936 KB
01-24.txt AC 24 ms 11008 KB
01-25.txt AC 119 ms 11008 KB
01-26.txt AC 34 ms 10624 KB
01-27.txt AC 31 ms 9472 KB
01-28.txt AC 68 ms 9472 KB
01-29.txt AC 86 ms 8832 KB
01-30.txt AC 100 ms 9472 KB
sample-01.txt AC 4 ms 7936 KB
sample-02.txt AC 4 ms 7936 KB
sample-03.txt AC 4 ms 7936 KB