chiihuang

class Solution {
public:
    bool validTree(int n, vector<pair<int, int>>& edges) {
        vector<int> group(n + 1, -1);
        for(auto e : edges){
            int x = find(group, e.first);
            int y = find(group, e.second);
            if (x == y) return false;
            
            group[x] = y;

chiihuang

#include <iostream>
#include <string>

using namespace std;

string trim(string& str)
{
    size_t first = str.find_first_not_of(' ');
    size_t last = str.find_last_not_of(' ');
    return str.substr(first, (last-first+1));

chiihuang

#include <string>
#include <sstream>
#include <iostream>
#include <vector>

std::vector<std::string> split(const std::string &s, char delim) {
    std::vector<std::string> elems;
    std::stringstream ss;
    ss.str(s);
    std::string item;

chiihuang

nc -zv my.nfs.server.ip 111 2049

chiihuang

// Change mydb.mycollection to your target ns
var result = db.currentOp();
result.inprog.filter(function(p){return p.ns === 'mydb.mycollection';}).map(function(p){return p.opid >= 0 ? p.opid : Math.pow(2,32) + p.opid;}).forEach(function(pid){ db.killOp(pid);});

chiihuang

What is your folder-structure preference for a large-scale Node.js project?

0: Starting from Rails

This is the reference point. All the other options are based off this.

|-- app
|   |-- controllers
|   |   |-- admin