CODE FESTIVAL 2016 Final

Submission #1179680

Source codeソースコード

// <mst.cpp> - Sat Mar 25 19:28:19 2017
// This file is created by XuYike's black technology automatically.
// Copyright (C) 2015 ChangJun High School, Inc.
// I don't know what this program is.

#include <iostream>
#include <vector>
#include <algorithm>
#include <cstring>
#include <cstdio>
#include <cmath>
using namespace std;
typedef long long lol;
template<typename T>
inline void gg(T &res){
    res=0;T fh=1;char ch=getchar();
    while((ch>'9'||ch<'0')&&ch!='-')ch=getchar();
    if(ch=='-')fh=-1,ch=getchar();
    while(ch>='0'&&ch<='9')res=res*10+ch-'0',ch=getchar();
    res*=fh;
}
inline int gi(){int x;gg(x);return x;}
inline lol gl(){lol x;gg(x);return x;}
const int MAXN=400010;
const int INF=2e9;
struct edge{
    int x,y,w;
    bool operator <(const edge b) const{return w<b.w;}
}e[MAXN];
int a[MAXN],f[MAXN];
int gf(int x){if(f[x]!=f[f[x]])f[x]=gf(f[x]);return f[x];}
int main(){
    int n=gi(),m=gi();
    for(int i=0;i<n;i++)f[i]=i,a[i]=a[i+n]=INF;
    for(int i=1;i<=m;i++){
        e[i].x=gi();e[i].y=gi();e[i].w=gi();
        a[e[i].x]=min(a[e[i].x],e[i].w+1);
        a[e[i].y]=min(a[e[i].y],e[i].w+2);
    }
    for(int i=1;i<n<<1;i++)a[i]=min(a[i],a[i-1]+2);
    for(int i=0;i<n;i++)e[++m]=(edge){i,(i+1)%n,min(a[i],a[i+n])};
    sort(e+1,e+m+1);
    lol ans=0;
    for(int i=1;i<=m;i++){
        int fa=gf(e[i].x),fb=gf(e[i].y);
        if(fa!=fb)f[fa]=fb,ans+=e[i].w;
    }
    printf("%lld",ans);
    return 0;
}

Submission

Task問題 G - Zigzag MST
User nameユーザ名 XLightGod
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 1490 Byte
File nameファイル名
Exec time実行時間 76 ms
Memory usageメモリ使用量 10368 KB

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 1 ms 2304 KB
01-02.txt AC 37 ms 4352 KB
01-03.txt AC 72 ms 7552 KB
01-04.txt AC 20 ms 7936 KB
01-05.txt AC 13 ms 6656 KB
01-06.txt AC 17 ms 7168 KB
01-07.txt AC 15 ms 6016 KB
01-08.txt AC 16 ms 5760 KB
01-09.txt AC 20 ms 5632 KB
01-10.txt AC 45 ms 6144 KB
01-11.txt AC 61 ms 5760 KB
01-12.txt AC 73 ms 7296 KB
01-13.txt AC 76 ms 7296 KB
01-14.txt AC 73 ms 7296 KB
01-15.txt AC 75 ms 7296 KB
01-16.txt AC 73 ms 7296 KB
01-17.txt AC 73 ms 7296 KB
01-18.txt AC 53 ms 10368 KB
01-19.txt AC 15 ms 5888 KB
01-20.txt AC 19 ms 5632 KB
01-21.txt AC 32 ms 5632 KB
01-22.txt AC 58 ms 7296 KB
01-23.txt AC 59 ms 7296 KB
01-24.txt AC 14 ms 8704 KB
01-25.txt AC 74 ms 10368 KB
01-26.txt AC 20 ms 8192 KB
01-27.txt AC 22 ms 7168 KB
01-28.txt AC 48 ms 7936 KB
01-29.txt AC 57 ms 6784 KB
01-30.txt AC 73 ms 8832 KB
sample-01.txt AC 1 ms 2304 KB
sample-02.txt AC 1 ms 2304 KB
sample-03.txt AC 1 ms 2304 KB