标签：费用 const 最大 int 最小 vis while frz dep
#ifdef ONLINE_JUDGE
#else
#define Qiu_Cheng
#endif
#include <bits/stdc++.h>
#define int long long
using namespace std;
// typedef long long ll;
const int N=5e3+520,mod=1e9+7;
const int inf=INT_MAX,INF=0x3f3f3f3f3f;
// const int mod1=469762049,mod2=998244353,mod3=1004535809;
// const int G=3,Gi=332748118;
// const int M=mod1*mod2;
inline int read()
{
int x=0,f=1;
char c=getchar();
while(c<'0'||c>'9'){if(c=='-'){f=-1;}c=getchar();}
while(c>='0'&&c<='9'){x=(x<<3)+(x<<1)+(c-'0');c=getchar();}
return x*f;
}
inline void write(int x)
{
if(x<0){putchar('-');x=-x;}
if(x>9) write(x/10);
putchar(x%10+'0');
}
int n,m;
struct node{int to,c,w,lp;};
vector<node>g[N];
int pos[N],dep[N],vis[N];
int max_flow=0,min_cost=0;
void add(int from,int to,int w,int c)
{
g[from].push_back((node){to,c,w,(int)g[to].size()});
g[to].push_back((node){from,0,-w,(int)g[from].size()-1});
}
void fc(int s)
{
for(int i=0;i<=n+1;i++) dep[i]=INF;
queue<int>q;
dep[s]=0;
q.push(s);
while(!q.empty())
{
int u=q.front();q.pop();
vis[u]=0;
for(auto v:g[u])
{
if(v.c>0&&dep[v.to]>dep[u]+v.w)
{
dep[v.to]=dep[u]+v.w;
if(!vis[v.to])q.push(v.to),vis[v.to]=1;
}
}
}
}
int dfs(int u,int t,int f)
{
if(u==t||!f) return f;
int ans=0;vis[u]=1;
for(int &i=pos[u];i<g[u].size();i++)
{
auto &x=g[u][i];
if(!vis[x.to]&&x.c>0&&dep[x.to]==dep[u]+x.w)
{
int frz=dfs(x.to,t,min(f,x.c));
if(frz>0)
{
x.c-=frz;g[x.to][x.lp].c+=frz;
f-=frz;ans+=frz;
min_cost+=(x.w*frz);
if(!frz)break;
}
}
}
vis[u]=0;
return ans;
}
int dinic(int s,int t)
{
int flow=0;
while(1)
{
// memset(vis,0,sizeof(vis));
fc(s);
// cout<<dep[t]<<endl;
if(dep[t]==INF)return flow;
memset(pos,0,sizeof(pos));
memset(vis,0,sizeof(vis));
flow+=dfs(s,t,inf);
// cout<<flow<<" "<<min_cost<<endl;
}
}
int s,t;
inline void solve()
{
cin>>n>>m>>s>>t;
for(int i=1;i<=m;i++)
{
int x,y,c,w;cin>>x>>y>>c>>w;
add(x,y,w,c);
}
max_flow=dinic(s,t);
cout<<max_flow<<" "<<min_cost<<endl;
}
signed main()
{
#ifdef Qiu_Cheng
freopen("1.in","r",stdin);
freopen("1.out","w",stdout);
#endif
// ios::sync_with_stdio(false);
// cin.tie(0); cout.tie(0);
// int QwQ;
// cin>>QwQ;
// while(QwQ--)solve();
solve();
return 0;
}
//12 825076913 0 173167432
// 6666 66666 666666
// 6 6 6 6 6
// 6 6 6666 6
// 6 6 6 6 6
// 6666 6 6 6666666
//g++ -O2 -std=c++14 -Wall "-Wl,--stack= 536870912 " cao.cpp -o cao.ex
// От чистого истока в прекрасное далёко,В прекрасное далёко я начинаю путь.
/*
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢆⠣⡀⠀⣀⣀⣤⣤⣤⣶⣶⣶⣶⣶⣶⣶⣶⣶⣦⣤⣤⣤⣄⣀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣤⣷⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣶⣦⣤⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣴⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣶⣤⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣶⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠤⠤⣄⣀⠀⠀⠀⠀⠀⠀⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⢿⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⣠⠋⣸⣷⣤⡀⠀⠀⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⠛⠋⠉⠉⠛⠓⠦⡀⠈⠢⡀⠀⠀⠀⠀⠀⠀⠀⣀⠤⠐⠂⠉⠉⠉⠉⠁⠒⠂⠤⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣠⢁⣼⣿⣿⣿⣿⣦⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠟⠛⠛⠛⠉⠉⠁⢄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠐⢄⡈⢆⠀⠀⠀⠀⠠⠊⠁⠀⠀⠀⠀⣀⣠⣤⠤⠤⠤⠤⣈⠐⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠈⠛⠿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠢⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠢⣧⠀⠀⡔⠁⠀⠀⠀⣠⣴⡿⠿⠭⠤⣄⡀⠀⠀⠀⠉⢺⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠟⠛⠁⠀⠙⠻⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠑⠤⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢧⡰⠀⠀⠀⣠⠞⠋⠀⠀⠀⠀⠀⠀⠙⢦⠀⠀⠀⠀⢹⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⢀⣤⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠿⠛⠋⠙⢄⠀⠀⠀⠀⠀⠀⠈⠳⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠐⠢⠤⢀⣰⡆⣀⣀⣀⠀⢀⡃⠀⠀⡰⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠃⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⢀⣴⣿⣿⣿⣿⡿⠙⠿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⠛⠋⠉⢣⠀⠀⠀⠀⠀⠱⢄⠀⠀⠀⠀⠀⠀⠈⠢⡀⠀⠀⠀⠀⠀⠐⡀⠀⠀⠀⠀⠀⠀⡴⠥⣷⠎⠉⠀⠀⠀⠈⠑⢴⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣿⣿⣿⣿⣿⡟⠁⠀⠀⢠⠃⠀⠀⠀⠀⠀⠈⣹⣿⡿⣿⣿⠿⠟⠛⠋⡟⠁⠀⠀⠀⠀⠀⠀⠱⡀⠀⠀⠀⠀⠈⠳⡀⠀⠀⠀⠀⠀⠀⠈⢢⠀⠀⠀⠀⠀⢠⠀⠀⠀⠀⠀⠀⠀⢀⠇⠀⠀⠀⠀⠀⠀⠀⠀⢣⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠄⠀⠀⠀⡌⠀⠀⠀⠀⠀⠀⠀⠀⠀
⢛⢿⣿⣿⠟⠀⠀⠀⢀⠇⠀⡞⠀⠀⠀⠀⠀⣿⠏⠀⠀⠀⠀⠀⠀⢠⠇⠀⠀⠀⠀⠀⠀⠀⠀⠙⡄⠀⠀⠀⠀⠀⠙⣦⡀⠀⠀⠀⠀⠀⠀⡑⡄⠀⠀⠀⠀⢳⠀⠀⠀⠀⢀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣄⡀⠀⠀⠀⠀⠀⠀⠀⣀⠊⠀⠀⠀⡐⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⣠⠶⠋⠁⠀⠀⠀⠀⠎⠀⣸⠃⠀⠀⠀⠀⢰⡟⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣄⠀⠀⠀⠀⠀⠘⢿⣦⡀⠀⠀⠀⠀⠘⡌⢆⠀⠀⠀⠈⢏⠉⠁⠀⠀⠀⠘⡄⠀⠀⠀⠀⠀⠀⠀⢠⣏⠉⠉⠑⠒⠤⠤⠤⠤⠊⠀⠀⠀⠀⡰⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⡰⠀⢠⣿⠀⠀⠀⠀⠀⣿⠃⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⡄⠀⠀⠀⠀⠀⠀⠹⣿⣄⠀⠀⠀⠀⠱⡜⣧⡱⠀⠀⠘⡄⠀⠀⠀⠀⠀⠑⠦⣀⡀⠀⢀⣠⣴⢿⢿⣷⣤⣄⡀⠀⠀⠀⠀⠀⠀⠀⡠⠊⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢠⠃⠀⣾⡇⠀⠀⠀⠀⢠⣿⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⡈⢆⠀⠀⠀⠀⠀⠹⣿⣦⡀⠀⠀⠀⢱⠬⣷⣅⠀⠀⢣⠀⠀⠀⠀⠀⠀⠀⣸⡿⠋⠉⠁⡿⠈⢮⢻⡻⠿⣿⣶⣒⡒⠒⠒⠂⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⡈⠀⣸⣿⠀⠀⠀⠀⠀⢸⡏⠀⠀⠀⠀⠀⠀⠀⠀⢸⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢧⠸⡄⠀⠀⠀⠀⠀⢹⡄⠉⠇⠂⠤⣀⠃⠘⣿⡄⠀⠈⡆⠀⠀⠀⠀⢠⡾⠋⠀⠀⠀⠀⠇⠀⢸⠧⡝⢦⡀⠀⠀⠀⠉⠐⠒⠂⠀⢀⣀⠲⠖⠊⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⢀⠇⠀⡿⡇⠀⠀⠀⠀⠀⡿⡇⠀⠀⠀⠀⠀⠀⠀⠀⢸⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⡆⢱⡀⠀⠀⠀⠀⠀⢳⠀⠸⡄⠀⠀⠉⢢⣸⣿⡀⠀⢸⠀⠀⢀⠴⠋⠀⠀⠀⠀⢀⡸⠀⠀⠈⡇⠈⠲⣌⠲⢄⡀⠀⠉⠉⠭⣉⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⢸⠀⠀⡇⡇⠀⠀⠀⠀⠀⡇⡇⠀⠀⠀⠰⠀⠀⠀⠀⢸⣷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⠀⣇⠀⠀⠀⠀⠀⠈⡇⠀⠈⠑⠲⢤⣤⣽⡏⢃⠀⠈⡄⠐⠀⠀⠀⠀⠀⠀⠀⣾⠃⠀⠀⠀⢳⠀⠀⠀⠙⠢⣝⡲⢤⣀⣀⠀⠉⠀⠒⠠⠤⠄⠀⠀⢤⠔⠀⠀⠀
⠀⠀⠀⠀⠀⡇⠀⢠⢰⢠⠀⠀⠀⠀⢠⡇⡇⠀⠀⠀⠀⡄⠀⠀⠀⠘⣿⣇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⡆⠸⡄⠀⠀⢸⡀⠀⢻⠀⠀⠀⠀⠀⢫⡩⠵⣮⡆⠀⢱⠐⢄⣀⡀⣀⣀⣀⡾⠃⠀⠀⠀⠀⢸⡄⠀⠀⠀⠀⠀⠉⠛⠲⠯⣭⡭⠛⠋⠁⢀⣀⠤⠐⠁⠀⠀⠀⠀
⠀⠀⠀⠀⠀⡇⠀⢸⣸⡘⠀⠀⠀⠀⠀⣧⠃⠀⠀⠀⠀⣇⠀⠀⠀⠀⡟⣿⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢧⠀⣇⠀⠀⢸⡇⠀⠈⡇⠀⣀⠄⠂⠁⠳⣄⠈⢻⠀⠈⡆⠢⢽⣄⢀⣀⡙⢦⡒⠒⠦⢔⡊⠉⠳⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⠉⠉⠁⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢸⡇⡇⠀⠀⠀⣀⣀⣿⣰⠀⠀⠀⠀⢸⠀⠀⠀⠀⣇⠘⣷⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⣿⠀⠀⢸⣿⠀⣀⣷⠊⠀⠀⠀⠀⠀⠀⠉⠉⡇⡀⣧⣤⣼⠿⢇⡤⠀⠑⣇⠐⠒⢒⣡⣀⣱⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⡀⠀⢸⡇⡇⠀⢯⠭⠭⠵⢶⡞⡇⠀⠀⠀⠈⡇⠀⠀⠀⢸⠀⠈⢷⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⣿⠀⠀⢸⣿⡟⠁⢸⠀⠀⠀⠀⠀⢀⣠⣶⣿⣿⣷⢻⡿⠁⠀⠛⠀⠀⠀⠈⣖⢶⣿⣿⡿⠿⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⡇⠀⢸⡇⢧⠀⠀⠀⠀⣀⣤⣷⣿⠀⠀⠀⠀⣿⡀⠀⠀⠘⡆⠀⠈⢳⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⡏⠀⠀⠊⡻⢸⠀⣼⠀⠀⣠⣶⣿⣿⣿⣿⣟⢛⠉⡎⡁⠀⠀⠀⠀⠀⠀⠀⣘⠀⠀⠀⠀⠀⢰⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⢃⠀⢸⢹⠸⠀⠀⢰⣿⢿⣛⣿⣽⡦⠀⠀⠀⢹⣷⠀⠀⠀⢱⠀⠀⠀⠳⡀⠀⠀⠰⡀⠀⠀⠀⠀⡼⢰⢧⡀⠀⠀⡇⠸⡎⡇⣴⣿⡿⢛⣿⣿⣿⣿⣿⠸⠀⠇⡇⠀⠀⠀⠀⠀⠀⠀⣿⡆⠀⠀⠀⠀⠘⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠸⡀⠈⢸⠀⠇⠀⠀⠰⠟⠋⠉⣧⠹⡄⠀⠀⠸⣿⢳⡒⠉⠙⡍⠉⠉⠉⠛⣆⠀⠀⠘⢦⡀⠀⢠⢧⡟⠀⢳⡀⢠⠃⢠⢣⢳⡿⠛⢶⣿⣿⣿⣿⣿⣿⠃⡏⠀⢡⠀⠀⠀⠀⢀⠇⢸⡏⣿⠀⠀⠀⠀⠀⢇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢃⠀⡘⡀⢸⠀⠀⠀⠀⠀⠀⠸⡄⢧⠀⠀⠀⣿⠀⠱⡄⠀⠘⡄⠀⠀⠀⠈⠳⡄⠀⠈⠻⡢⣼⣿⠁⠀⠀⠑⣼⠀⢸⡎⠀⠀⠀⠀⠻⢿⣿⣿⣿⠿⠂⢣⠀⢺⠀⠀⠀⠐⠋⣠⣿⠇⢹⡆⠀⠀⠀⠀⠘⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠈⢆⡇⡇⠀⣆⠀⠀⠀⠀⠀⠀⢳⡈⢧⠀⠀⢸⠀⠀⠈⠢⡀⠙⣄⠀⠀⠒⠒⠨⠳⢄⣀⡼⠫⣙⡦⢄⣀⠀⠈⠳⢯⠁⠀⠀⠀⠀⠀⠈⠉⠁⠀⠀⠀⢸⠀⢸⠀⠀⣾⣐⡴⠟⠉⠀⠀⣧⠀⠀⠀⠀⠀⢇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠘⣇⢿⡀⢸⡄⠀⠀⠀⠀⠀⠈⢧⠘⢆⠀⠘⡇⠀⠀⠀⠈⠓⠬⣢⡀⠀⠀⠀⠀⠐⠉⠑⠲⢬⠷⣦⣞⡉⠒⠲⠿⠭⠶⠤⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⡀⢸⠀⣰⣿⣿⣄⠀⠀⠀⠀⢿⠀⠀⠀⠀⠀⠘⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢀⣸⡼⣗⢺⣿⡛⠛⠛⠛⠲⢦⢸⣧⠈⢆⠀⢱⣄⠀⠀⠀⠀⠀⠀⣉⣑⣢⣤⣤⡤⠀⠀⢠⢇⡴⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⣸⢰⣿⡏⢸⣿⣧⠀⠀⠀⢸⡇⠀⠀⠀⠀⠀⢱⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⣠⡶⠋⠑⡌⡟⣿⡿⣧⠀⠀⠀⠀⠀⠀⢻⣷⡈⢣⠈⣿⣷⣤⣴⣿⠿⠿⠛⠟⠛⠉⠀⠀⠀⠠⠟⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⣿⢿⣿⡇⣿⣿⣿⣧⠀⠀⢸⣿⠀⠀⠀⠀⠀⠀⢇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⣰⠋⠀⠀⠀⠇⢰⡇⢧⠹⣧⠀⠀⠀⠀⠀⠀⢻⣷⣄⠳⡹⣿⣸⣷⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⡿⠘⣿⣷⣿⣿⣿⣿⣦⠀⠘⣿⡆⠠⡀⠀⠀⠀⠈⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⡀⠠⠁⠀⠀⠀⠀⠸⡘⣇⢸⠀⠘⣷⡀⠀⠀⠀⠀⠀⢻⡎⠢⡙⢿⣿⢿⠙⢧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡴⡇⡇⠀⣿⣿⣿⣿⣿⠿⠛⠀⠀⣿⣧⠀⠱⡀⠀⠀⠀⠘⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠠⣾⢛⣷⠶⠀⠀⠀⠀⠀⢱⠘⣼⠀⠀⣿⡷⣄⠀⠀⠀⠀⠀⠹⡄⠙⢮⡹⣇⠉⣦⣵⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠠⠂⠀⠀⠀⠀⠀⣠⣾⣦⢁⡇⢰⣿⡟⠋⠉⠀⠀⠀⠀⠀⢸⠈⣇⠀⠘⣆⠀⠀⠀⠘⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⣿⠟⠸⠀⠀⠀⠀⠀⠀⣾⣧⢹⡄⢠⡟⣷⡘⢦⡀⠀⠀⠀⠀⠹⡄⠀⠈⠪⣷⢽⠀⠻⢦⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠤⠐⠀⠀⠀⠀⠀⠀⠀⢀⠔⠁⢸⣿⢸⠀⠸⣿⡇⠀⠀⠀⠀⠀⠀⠀⠸⠀⠘⢆⠀⠈⢷⡀⠀⠀⠘⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠁⠀⠀⠀⠀⠀⠀⠀⢰⠛⣿⣇⠹⣼⠃⠹⣷⠀⠙⢦⠀⠀⠀⠀⠙⣄⠀⠀⠈⢹⠿⣦⣈⠑⢄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⠔⠁⠀⠀⠈⡇⣾⠀⠀⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⡇⠀⠀⠀⠀⠈⢿⣦⡀⠀⠈⢆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⡌⠀⠸⣿⣷⡘⢦⡀⠹⡇⠀⠀⢹⣦⡀⠀⠀⠈⢢⡀⠀⢸⠀⠈⠉⠛⠦⣭⡙⠓⠶⢤⠤⣠⣤⣀⣀⣀⣀⣀⣀⣀⡀⠀⣀⠜⠁⠀⠀⠀⠀⢰⢣⣧⡀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⠀⠀⠀⠀⠀⠀⠙⢿⣦⡀⠀⠳⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⢀⠃⠀⣸⣿⡿⣿⠶⣝⢦⣽⣆⠀⠀⢿⣏⠲⢤⡀⠀⠙⠢⣼⡀⠀⠀⠀⠀⠀⠀⠀⠀⠘⡄⠘⣿⡄⠀⠀⢘⣿⠀⠀⠈⠁⠀⠀⠀⠀⠀⠀⠀⡼⡘⠋⠳⣄⢸⡀⠀⠀⠀⡆⠀⠀⠀⠀⡇⠀⠀⠀⠀⠀⠀⠀⠀⠘⣎⠢⣄⠘⢦⣤⡀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⡎⠀⢠⣿⡟⠀⠈⠳⣮⣹⣿⠛⢧⡄⠈⢻⡀⠀⠉⠓⠦⢤⣈⣙⡓⠦⣄⣀⣀⡀⠀⠀⠀⢧⠀⠸⡷⠀⣴⠟⢿⡀⠀⠀⠀⠀⠀⠀⠀⣀⡴⡿⣹⠃⠀⠀⠘⢧⡇⠀⠀⠀⡇⠀⠀⠀⠀⡇⠀⠀⠀⢀⣀⣀⣀⣀⣀⣈⣆⠀⠑⢤⡙⢿⣷⣦⣄⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢰⠀⢠⣿⡟⠀⠀⠀⠀⠈⣿⡟⠀⠀⠙⣦⡀⠱⡄⠀⠀⠀⠀⠀⢻⠉⠉⠉⠉⠉⠁⠀⠀⠀⢸⠀⠀⢱⡞⠁⠀⠀⠉⠓⠶⢤⣄⣀⡠⠞⠁⣰⡿⠁⠀⠀⠀⠀⠨⡇⠀⠀⠀⡇⠀⠀⠀⠀⣿⠁⠈⠉⠁⠀⠀⠀⠀⠀⠀⠉⠳⢄⠀⠈⠲⣿⣿⣿⣿⣶⣤⣀⠀
⠀⠀⠀⠀⠀⠀⢠⢃⠔⣻⡿⠀⠀⠀⠀⠀⢰⣿⠀⡇⠀⢠⣿⣿⠦⣘⢦⡀⠀⠀⠀⠸⡦⠴⠶⠶⠶⠶⠶⠶⠶⠞⠒⠺⣏⠀⠀⠀⠀⠀⠀⢰⡟⠉⠀⠑⣶⣼⠟⠀⠀⠀⠀⠀⠀⢠⡇⠀⠀⢠⠁⠀⠀⠀⠀⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠣⡀⠀⠀⠙⠿⣿⣿⡧⠈⠓
⠀⠀⠀⠀⠀⠀⡞⠀⣰⣿⠁⠀⠀⠀⠀⠀⢸⡏⠀⡇⠀⢸⣿⣿⠀⠈⠙⠛⠲⠤⡀⠀⢇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⡆⠀⠀⠀⠀⢠⣏⡀⠀⢠⡴⠟⣷⡀⠀⠀⠀⠀⠀⠀⣸⢇⠀⠀⣸⠀⠀⠀⠀⡀⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠱⠀⠀⠀⠀⠈⠻⢿⡀⠀
⠀⠀⠀⠀⠀⡜⠀⢠⢻⠇⠀⠀⠀⠀⠀⠀⢸⠃⠀⢣⠀⢸⣿⢿⠀⠀⠀⢀⠀⠀⠀⠀⡞⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⣷⡀⠀⠀⠀⣿⣿⣿⣦⣀⣀⣴⣿⣷⡄⠀⠀⠀⠀⢠⣿⠈⢦⠀⡇⠀⠀⠀⢸⡇⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠱⠀⠀⠀⠀⠀⠀⠙⢦
⠀⠀⠀⠀⢰⠀⠠⠃⡞⠀⠀⠀⠀⠀⠀⠀⣾⠀⠀⠈⡆⡿⣿⠘⡇⠀⠀⣨⠀⠀⠀⠀⢷⡹⡀⠀⠀⠀⠀⠀⠀⠀⠀⣰⣿⣿⣧⠀⠀⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣄⠀⠀⢀⣾⡇⠠⡈⢠⠃⠀⠀⠀⢸⣧⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢇⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⢠⠃⡠⠃⢀⡇⠀⠀⠀⠀⢀⡄⠀⡇⠀⠀⠀⢸⡇⡏⠀⢧⠀⠀⣿⡆⠀⠀⠀⠘⡗⣝⣄⠀⠀⠀⠀⠀⠀⣠⣿⣿⣿⣿⣀⣼⣿⣿⣿⣿⡿⠟⠉⢿⣿⣿⣿⣿⣆⢀⣾⣿⠃⠀⢡⡏⠀⠀⠀⠀⢸⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⢆⠀⠀⠀⠀⠀⠀
⠀⠀⢀⠆⡰⠁⠀⢸⠁⠀⠀⠀⠀⢸⡇⠀⡇⠀⠀⠀⠀⣧⡇⠀⠸⡀⠀⣿⣷⡀⠀⠀⠀⢹⡀⠙⠳⠦⣄⠀⠀⣰⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠋⠀⠀⠀⠀⢹⣿⣿⣿⣿⣿⣿⡏⠀⢀⡼⠀⠀⠀⠀⠀⣾⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣦⡀⠀⠀⠀⠀
⠀⠀⡌⡐⠁⠀⠀⡾⠀⠀⠀⠀⠀⢸⢻⠀⣧⠀⠀⠀⠀⣾⡇⠀⠀⡇⠀⢻⣿⣧⠀⠀⠀⠀⢳⠀⠀⠀⠀⠀⣰⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠀⠀⣀⣀⠀⣼⣿⣿⣿⣿⣿⡿⠀⢀⣾⠃⠀⠀⠀⠀⣰⣿⡿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⡝⢦⡀⠀⠀
⠀⡰⡜⠁⠀⠀⢀⡇⠀⠀⠀⠀⠀⡏⠘⡇⢹⠀⠀⠀⢸⣿⢸⠀⠀⠘⡄⠘⣿⣿⣧⠀⠀⠀⠀⢣⡀⠀⠀⣠⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠟⠿⣿⡟⠻⣿⣿⣿⣿⣿⣿⠃⣠⣿⠏⠀⠀⠀⠀⢀⣿⣿⠇⠀⠀⢠⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣹⣆⡙⠢⡀
⢰⡵⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⢠⠇⠀⢳⡘⡆⠀⢀⠇⢻⡼⡀⠀⠀⠱⡀⠹⡟⣿⣧⡀⠀⠀⠀⠳⡀⣠⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠁⠀⠀⢿⣿⠀⢸⣿⣿⣿⣿⣧⣾⣿⠏⠀⠀⠀⠀⢀⣾⣿⣿⡄⠀⠀⢸⣆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡠⠤⠒⠉⠀⠀⢳⠀⠈ */
// И снег, и ветер, И звёзд ночной полёт...Меня моё сердце В тревожную даль зовёт.
标签：费用,
const,
最大,
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From： https://www.cnblogs.com/qc0817/p/18673747