大约有 15,000 项符合查询结果（耗时：0.0275秒） [XML]
Throwing the fattest people off of an overloaded airplane.
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One way would be to use a min heap (std::priority_queue in C++). Here's how you'd do it, assuming you had a MinHeap class. (Yes, my example is in C#. I think you get the idea.)
int targetTotal = 3000;
int totalWeight = 0;
// this creates an empty heap!
var myHeap = new MinHeap<P...
Overloading and overriding
... at run time.
class Car
{
public int topSpeed()
{
return 200;
}
}
class Ferrari extends Car
{
public int topSpeed()
{
return 400;
}
public static void main(String args[])
{
Car car = new Ferrari();
int num= car.topSpeed();
Sys...
Sending a JSON to server and retrieving a JSON in return, without JQuery
...nge = function () {
if (xhr.readyState === 4 && xhr.status === 200) {
var json = JSON.parse(xhr.responseText);
console.log(json.email + ", " + json.password);
}
};
var data = JSON.stringify({"email": "hey@mail.com", "password": "101010"});
xhr.send(data);
Sending an...
How to make an image center (vertically & horizontally) inside a bigger div [duplicate]
I have a div 200 x 200 px. I want to place a 50 x 50 px image right in the middle of the div.
36 Answers
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How do I scale a stubborn SVG embedded with the tag?
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None of the answers given here worked for me when I asked this back in 2009. As I now had the same issue again I noticed that using the <img> tag and width together with an svg works fine.
<img width="400" src="image.svg">
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What is the difference between C++ and Visual C++? [duplicate]
What is the difference between C++ and Visual C++?
7 Answers
7
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Plot correlation matrix into a graph
..."AOE", col=col1(10),addCoef.col="grey")
corrplot(M, order="AOE", col=col2(200))
corrplot(M, order="AOE", col=col2(200),addCoef.col="grey")
corrplot(M, order="AOE", col=col2(20), cl.length=21,addCoef.col="grey")
corrplot(M, order="AOE", col=col2(10),addCoef.col="grey")
corrplot(M, order="AOE", col=...
Python Flask, how to set content type
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As simple as this
x = "some data you want to return"
return x, 200, {'Content-Type': 'text/css; charset=utf-8'}
Hope it helps
Update:
Use this method because it will work with both python 2.x and python 3.x
and secondly it also eliminates multiple header problem.
from flask import R...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
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#!/bin/bash
(
# Wait for lock on /var/lock/.myscript.exclusivelock (fd 200) for 10 seconds
flock -x -w 10 200 || exit 1
# Do stuff
) 200>/var/lock/.myscript.exclusivelock
This ensures that code between ( and ) is run only by one process at a time and that the process doesn’t wait to...
Is modern C++ becoming more prevalent? [closed]
When I first learned C++ 6-7 years ago, what I learned was basically "C with Classes". std::vector was definitely an advanced topic, something you could learn about if you really wanted to. And there was certainly no one telling me that destructors could be harnessed to help manage memory.
Toda...