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数据好水啊

Posted by 5120175184 at 2019-02-25 17:14:18 on Problem 3228 and last updated at 2019-02-25 17:16:25
数据好水啊

这个代码都能过。。。。
///#include<bits/stdc++.h>
///#include<unordered_map>
///#include<unordered_set>
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<string>
#include<cmath>
#include<queue>
#include<bitset>
#include<set>
#include<stack>
#include<map>
#include<list>
#include<new>
#include<vector>
#define MT(a,b) memset(a,b,sizeof(a));
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
const double pai=acos(-1.0);
const double E=2.718281828459;
const ll mod=998424353;
const int INF=0x3f3f3f3f;

int n,m;
int st[205],en[205];
int p[205];

int s[40005],e[40005];
int sign;

struct node
{
    int s;
    int e;
    int c;
    bool friend operator<(node a,node b)
    {
        return a.c<b.c;
    }
}edge[10005];

int find(int x)
{
    return p[x]==x?x:p[x]=find(p[x]);
}

void init()
{
    for(int i=1;i<=n;i++)
        p[i]=i;
}

int judge()
{
    for(int i=1;i<=sign;i++)
    {
        int x=find(s[i]);
        int y=find(e[i]);
        if(x!=y)
            return 0;
    }
    return 1;
}
int main()
{
    while(scanf("%d",&n)!=EOF,n)
    {
        int a=0,b=0;
        for(int i=1; i<=n; i++)
        {
            scanf("%d",&st[i]);
            a+=st[i];
        }
        for(int i=1; i<=n; i++)
        {
            scanf("%d",&en[i]);
            b+=en[i];
        }
        if(a>b)
        {
            printf("No Solution\n");
            continue;
        }
        sign=0;
        for(int i=1;i<=n;i++)
        {
            for(int j=1;j<=n;j++)
            {
                if(st[i]-en[i]>0&&st[j]-en[j]<0)
                {
                    s[++sign]=i;
                    e[sign]=j;
                }
            }
        }
        scanf("%d",&m);
        for(int i=1; i<=m; i++)
            scanf("%d %d %d",&edge[i].s,&edge[i].e,&edge[i].c);
        sort(edge+1,edge+1+m);
        int flag=1;
        for(int i=1;i<=m;i++)
        {
            init();
            for(int j=1;j<=i;j++)
            {
                int x=find(edge[j].s);
                int y=find(edge[j].e);
                if(x!=y)
                    p[x]=y;
            }
            if(judge())
            {
                flag=0;
                printf("%d\n",edge[i].c);
                break;
            }
        }
        if(flag)
            printf("No Solution\n");
    }
    return 0;
}

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