// what is matter? never mind. 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,sse4,popcnt,abm,mmx,avx,avx2") 
#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
#define ll long long
#define ull unsigned long long
#define int long long
using namespace std;
inline int read()
{
	char c=getchar();int x=0;bool f=0;
	for(;!isdigit(c);c=getchar())f^=!(c^45);
	for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
	if(f)x=-x;return x;
}

int mod;
struct modint{
	int x;
	modint(int o=0){x=o;}
	modint &operator = (int o){return x=o,*this;}
	modint &operator +=(modint o){return x=x+o.x>=mod?x+o.x-mod:x+o.x,*this;}
	modint &operator -=(modint o){return x=x-o.x<0?x-o.x+mod:x-o.x,*this;}
	modint &operator *=(modint o){return x=1ll*x*o.x%mod,*this;}
	modint &operator ^=(int b){
		modint a=*this,c=1;
		for(;b;b>>=1,a*=a)if(b&1)c*=a;
		return x=c.x,*this;
	}
	modint &operator /=(modint o){return *this *=o^=mod-2;}
	friend modint operator +(modint a,modint b){return a+=b;}
	friend modint operator -(modint a,modint b){return a-=b;}
	friend modint operator *(modint a,modint b){return a*=b;}
	friend modint operator /(modint a,modint b){return a/=b;}
	friend modint operator ^(modint a,int b){return a^=b;}
	friend bool operator ==(modint a,int b){return a.x==b;}
	friend bool operator !=(modint a,int b){return a.x!=b;}
	bool operator ! () {return !x;}
	modint operator - () {return x?mod-x:0;}
	bool operator <(const modint&b)const{return x<b.x;}
};
inline modint qpow(modint x,int y){return x^y;}

vector<modint> fac,ifac,iv;
inline void initC(int n)
{
	if(iv.empty())fac=ifac=iv=vector<modint>(2,1);
	int m=iv.size(); ++n;
	if(m>=n)return;
	iv.resize(n),fac.resize(n),ifac.resize(n);
	For(i,m,n-1){
		iv[i]=iv[mod%i]*(mod-mod/i);
		fac[i]=fac[i-1]*i,ifac[i]=ifac[i-1]*iv[i];
	}
}
inline modint C(int n,int m){
	if(m<0||n<m)return 0;
	return initC(n),fac[n]*ifac[m]*ifac[n-m];
}
inline modint sign(int n){return (n&1)?(mod-1):(1);}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define maxn 200005
#define inf 0x3f3f3f3f3f3f3f3f

// buru toptree/fn

int n,q,a[maxn];
vector<pii>e[maxn];

int fa[maxn],son[maxn],sz[maxn],dep[maxn];
int dfn[maxn],out[maxn],top[maxn],que[maxn],idx,dis[maxn];
void dfs1(int u){
	sz[u]=1;
	for(auto [v,w]:e[u]){
		if(v==fa[u])continue;
		fa[v]=u,dep[v]=dep[u]+1,dis[v]=dis[u]+w,dfs1(v),sz[u]+=sz[v];
		if(sz[v]>sz[son[u]])son[u]=v; 
	}
}

int lca(int u,int v){
	for(;top[u]!=top[v];u=fa[top[u]])if(dep[top[u]]<dep[top[v]])swap(u,v);
	return dep[u]<dep[v]?u:v;
}
int kth(int u,int k){
	while(k>=dfn[u]-dfn[top[u]]+1&&dfn[u]!=1)
		k-=dfn[u]-dfn[top[u]]+1,u=fa[top[u]];
	return que[dfn[u]-k];
}
int jump(int u,int v){
	for(;top[u]!=top[v];u=fa[top[u]])
		if(fa[top[u]]==v)return top[u];
	return son[v];
}

struct bit{
	vector<int>tr;
	int n;
	void init(int N){n=N,tr=vector<int>(N+1,0);}
	void add(int x,int y){for(;x<=n;x+=x&-x)tr[x]+=y;}
	int ask(int x){
		int s=0;
		for(;x;x^=x&-x)s+=tr[x];
		return s;
	}
	void down(){For(i,1,n)tr[i]+=tr[i^(i&-i)];}
}T;

// 

struct segt{
	pii a[maxn];
	pii mx[maxn<<2];
	int tag[maxn<<2];
	void up(int p){
		mx[p]=max(mx[p<<1],mx[p<<1|1]);
		mx[p].fi+=tag[p];
	}
	void build(int p,int l,int r){
		if(l==r)return mx[p]=a[l],void();
		int mid=l+r>>1;
		build(p<<1,l,mid);
		build(p<<1|1,mid+1,r); up(p);
	}
	void upd(int p,int l,int r,int x,pii y){
		if(l==r)return mx[p]=y,void();
		int mid=l+r>>1;
		y.fi-=tag[p];
		if(x<=mid)upd(p<<1,l,mid,x,y);
		else upd(p<<1|1,mid+1,r,x,y);
		up(p);
	}
	void add(int p,int l,int r,int nl,int nr,int v){
		if(l>=nl&&r<=nr)return tag[p]+=v,mx[p].fi+=v,void();
		int mid=l+r>>1;
		if(nl<=mid)add(p<<1,l,mid,nl,nr,v);
		if(nr>mid)add(p<<1|1,mid+1,r,nl,nr,v);
		up(p);
	}
	pii ask(int p,int l,int r,int ql,int qr){
		if(ql>qr)return mkp(-inf,-inf);
		if(l>=ql&&r<=qr)return mx[p];
		int mid=l+r>>1; pii res=mkp(-inf,-inf);
		if(ql<=mid)res=max(res,ask(p<<1,l,mid,ql,qr));
		if(qr>mid)res=max(res,ask(p<<1|1,mid+1,r,ql,qr));
		res.fi+=tag[p];
		return res;
	}
}T1,T2;

set<pii>s[maxn];

int ed[maxn];
pii sec(int u){
	if(s[u].size()<=1)return mkp(-inf,-inf);
	return *(--(--s[u].end()));
}
void dfs2(int u,int tp){
	top[u]=tp,dfn[u]=++idx,que[idx]=u,ed[tp]=u;
	if(son[u])dfs2(son[u],tp);
	for(auto [v,w]:e[u])if(v!=fa[u]&&v!=son[u])dfs2(v,v);
	out[u]=idx;
	s[u].insert(mkp(dis[u]+a[u],-u));
	for(auto [v,w]:e[u]){
		if(v!=fa[u] && v!=son[u]){
			s[u].insert(T1.ask(1,1,n,dfn[v],out[v]));
		}
	}
	T1.upd(1,1,n,dfn[u],*s[u].rbegin());
	auto it=*s[u].rbegin();
	it.fi-=2*dis[u];
	T2.upd(1,1,n,dfn[u],it);
}

bool in(int u,int v){
	return dfn[v]>=dfn[u] && dfn[v]<=out[u];
}

void wk(int u,int w){
	int uu=u;
	while(u){
		int t=top[u];
		if(fa[t]){
			int f=fa[t];
			pii tmp=T1.ask(1,1,n,dfn[t],out[t]);
			tmp.fi-=T.ask(dfn[f]);
			assert(s[f].count(tmp));
			s[f].erase(tmp);
		}
		u=fa[top[u]];
	}
	u=uu;
	T.add(dfn[u],w);
	T.add(out[u]+1,-w);
	
	T1.add(1,1,n,dfn[u],out[u],w);
	T2.add(1,1,n,dfn[u],out[u],w);
	
	while(u){
		int t=top[u];
		if(fa[t]){
			int f=fa[t];
			pii tmp=T1.ask(1,1,n,dfn[t],out[t]);
			tmp.fi-=T.ask(dfn[f]);
			s[f].insert(tmp);
			tmp=*s[f].rbegin();
			T1.upd(1,1,n,dfn[f],tmp);
			tmp.fi-=2*dis[f];
			T2.upd(1,1,n,dfn[f],tmp);
		}
		u=fa[top[u]];
	}
}

pii ask(int u){
	int uu=u;
	pii res=mkp(-inf,-inf);
	int lst=-1;
	while(u){
		res=max(res,T2.ask(1,1,n,dfn[top[u]],dfn[u]-1));
//		cout<<"res "<<res.fi<<" "<<res.se<<"\n";
		pii tmp=T1.ask(1,1,n,dfn[u]+1,dfn[ed[top[u]]]); tmp.fi-=dis[u]*2;
//		cout<<"tmp "<<tmp.fi<<" "<<tmp.se<<"\n";
		res=max(res,tmp);
		auto it=--s[u].end();
		int adds=-dis[u]*2+T.ask(dfn[u]);
		if(lst==-1 || !in(lst,-(it->se))){
			pii tt=*it; tt.fi+=adds;
			res=max(res,tt);
		}
		else if(s[u].size()>1){
			--it;
			pii tt=*it; tt.fi+=adds;
			res=max(res,tt);
		}
		lst=top[u];
		u=fa[top[u]];
	}
	res.fi+=dis[uu];
	return res;
}

signed main()
{
	n=read(),q=read();
	For(i,1,n)a[i]=-read();
	For(u,2,n){
		int v=read(),w=read();
		e[u].pb(mkp(v,w));
		e[v].pb(mkp(u,w));
	}
	dfs1(1),dfs2(1,1);
	T.init(n);
	For(_,1,q){
		int x=read(),y=read(),w=-read();
		wk(y,w);
		pii tmp=ask(x);
		cout<<-tmp.se<<" "<<tmp.fi<<"\n";
	}
	return 0;
}

/*
5 6
-10 0 2 -4 8
1 7
1 1
2 2
2 -2
1 1 100
2 1 -100
1 1 0
4 3 10
2 5 3
5 2 2


6 6
1 1 4 5 1 4
1 5	 
2 0
3 2
4 1
5 6
3 2 -100000
1 2 100000
1 1 0
2 2 66
3 1 5
4 4 -3
*/