Start pg server
sudo brew services start postgresql
Make postgres as default user
export PGUSER=postgres
Create pg database
#include <iostream> | |
template <typename T> | |
struct Node { | |
T data; | |
Node *next; | |
}; | |
template <typename T> class List{ | |
private: |
# change mongo url to mongodb://mongo:27017 | |
version: "3" | |
services: | |
app: | |
container_name: express-api | |
restart: always | |
build: . | |
ports: | |
- '3000:3000' |
FROM node:14-slim | |
WORKDIR /usr/src/app | |
COPY package*.json ./ | |
RUN npm install | |
COPY . . |
Start pg server
sudo brew services start postgresql
Make postgres as default user
export PGUSER=postgres
Create pg database
function swap(str, i, j) { | |
let temp = str[i] | |
str = str.split(""); | |
str[i] = str[j]; | |
str[j] = temp; | |
return str.join(""); | |
} |
import wave, struct | |
import numpy as np | |
from tkinter import * | |
from tkinter.filedialog import askopenfilename | |
import pygame | |
# =========================== INIT STUFFS ======================================== | |
root = Tk() |
#include <iostream> | |
typedef unsigned int uint; | |
template <typename T> | |
class Matrix { | |
private: | |
T **mat, row, col; | |
public: | |
Matrix() : mat(nullptr), row(0), col(0) {} |
1) | |
len = size(M)(1) | |
M(1) + M(len) + M(len*len - (len + 1)) + M(len*len) | |
2) | |
sum(sum(M)) | |
3) | |
function (m,n) | |
eye(m,n) |
#ifndef VEC_CPP | |
#define VEC_CPP | |
#include "util.h" | |
#include "vec.cpp" | |
String::String() : s(nullptr) {}; | |
String::String(const char *str) { | |
int l = len(str); |