This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
int n,m,u,v,vis[2007],root1,root2,cnt=0;
int st[2007],fs[2007];
int st2[2007],fs2[2007],dp[4007][4007];
vector < int > edge[2007],ed[2007];
void dfs1(int u){
cnt++;
st[u]=cnt;
for(int i=0;i<(int)edge[u].size();i++){
int v=edge[u][i];
dfs1(v);
}
cnt++;
fs[u]=cnt;
}
void dfs2(int u){
cnt++;
st2[u]=cnt;
for(int i=0;i<(int)ed[u].size();i++){
int v=ed[u][i];
dfs2(v);
}
cnt++;
fs2[u]=cnt;
}
int main(){
//ios_base::sync_with_stdio(0);
cin>>n>>m;
for(int i=1;i<=n;i++){
cin>>u>>v;
if(u==0){
root1=i;
}
else edge[u].pb(i);
if(v==0){
root2=i;
}
else ed[v].pb(i);
}
dfs1(root1);
cnt=0;
dfs2(root2);
for(int i=1;i<=m;i++){
cin>>u>>v;
dp[st[u]][st2[v]]++;
dp[st[u]][fs2[v]]--;
dp[fs[u]][fs2[v]]++;
dp[fs[u]][st2[v]]--;
}
int cur=0;
for(int i=1;i<=2*n;i++){
cur=0;
for(int j=1;j<=2*n;j++){
cur+=dp[j][i];
dp[j][i]=cur;
}
}
for(int i=1;i<=2*n;i++){
cur=0;
for(int j=1;j<=2*n;j++){
cur+=dp[i][j];
dp[i][j]=cur;
}
}
for(int i=1;i<=n;i++){
cout<<dp[st[i]][st2[i]]<<"\n";
}
}
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