qingswu

#!/usr/bin/env python
from glob import glob                                                           
import cv2 
pngs = glob('./*.png')

for j in pngs:
    img = cv2.imread(j)
    cv2.imwrite(j[:-3] + 'jpg', img)

GleasonK

<div id="vid-box"></div>

<form name="loginForm" id="login" action="#" onsubmit="return login(this);">
    <input type="text" name="username" id="username" placeholder="Pick a username!" />
    <input type="submit" name="login_submit" value="Log In">
</form>

<form name="callForm" id="call" action="#" onsubmit="return makeCall(this);">
	<input type="text" name="number" placeholder="Enter user to dial!" />
	<input type="submit" value="Call"/>

kislayabhi

mycodeschool

/*
  Infix to postfix conversion in C++ 
  Input Postfix expression must be in a desired format. 
  Operands and operator, both must be single character.
  Only '+'  ,  '-'  , '*', '/' and '$' (for exponentiation)  operators are expected. 
*/
#include<iostream>
#include<stack>
#include<string>