How to now randomize the answer order within this code ? I only included the relevant piece of code of the task in question.
questions.push_back(
"Question [1]"
" "
"What port does HTTPS use ? "
"1. 25 "
"2. 443 "
"3. 23 ");
answers.push_back("2");
I am trying to use push back in a 2D vector but I don't know how to. This is what I have:
vector <vector <BigInt> > matr;
for (BigInt i=0;i<rij;i++) {
for (BigInt j=0;j<kolom-1;j++) {
matr.push_back().push_back((i+1)^(pow-j));
}
}
I quickly invented something but that doesn't work obviously. it should be equivalent to this: (the only problem in the code below is that those indexes don't exist yet that's why I need push_back())
for (BigInt i=0;i<rij;i++) {
for (BigInt j=0;j<kolom-1;j++) {
matr[int(i)][int(j)]=(i+1)^(pow-j);
}
}
I have below classes
Code:
class moClassValueContainer {
public:
moClassValueContainer();
moClassValueContainer(string,int);
[Code] ....
In my main.cpp, I have blow loop
Code:
for (xml_node tnode = it->first_child(); tnode ; tnode = tnode.next_sibling()) {
Container tmpContainer(tnode);
if (tmpContainer.getType() == SINGLE) {
string t = tmpContainer.getName();
[Code] ....
I cannot push_back(t). I examined the code with debugger, t has correct string value assigned, but even after 20-30 iterations, there is no element for headerFields vector.
How to avoid using Backspace character with push_back? I'm making a software as an ATM, so when the user try to enter the password the user only sees *******, but when trying to delete it doesn't delete a character. It just adds a new one. Here's my code:
string password2 = "";
cout << "PASSWORD: ";
ch = _getch();
while(ch != 13) //character 13 is enter {
password2.push_back(ch);
cout << '*';
ch = _getch();
}
And also, I try to use pop_back(); but it doesn't work either.
I have a class called Question:
#include <string>
#include <vector>
using namespace std;
class Question {
string title;
vector<Thing*> posAns;
vector<Thing*> negAns;
[Code] ....
error: no instance of overloaded function 'std::vector::push_back()' matches the arguments list
argument types are (const Thing *)
object type is: std:: vector<Thing *, std::allocator<Thing *>>
So it cannot be constant, what if I just leave it non-constant? Will it be safe?
How to output vector contents using the push_back function. My program reads in values just fine, but it does not output anything and I've been stuck on why.
here is my code:
#include <iostream>
#include <array>
#include <vector>
using namespace std;
int duplicate( vector < int > &vector1, const int value, const int counter)
[Code].....
i have a program that will be a question and answer . my lecturer want the question to be randomize
View 1 Replies View RelatedHere's what i'm searching for: I have a form with 3 pictureBoxes (pictureBox1,2,3). The form also contains one button.
What I want is that when the user clicks the button (so button_click event) that the 3 pictureBoxes each show a different picture. And when I click the button again again 3 different pictures will load.
I already found out that I need to make an arraylist for the pictures (there are about 100 pictures). A System.Random
to select random images. But I have absolutely no clue on how to write this code.
I am creating a reaction game using a series of lasers and LRDs and need to make a function which waits for a specific pin in portb to be triggered high before it can move onto waiting for the next pin to be triggered. The time lasped before the "game loses" needs to get exponentially faster as the game goes on.
I am using statements such as if(input(PIN_B0)==1 generate_tone(G_note[2], 1000); but unsure how to write in c "wait x amount of time, if trigger move onto next random pin or no trigger go to lose function.
I am expecting to get correct answer for every value of x, n and a[i] where
-10^9 <= a[i] <= 10^9
1 <= x <= 10^18
and 1 <= n <= 10000
Every value here is an integer value
#include<cstdio>
#include<iostream>
#include<cmath>
#include <float.h>
#define sBig long long int
[Code] .....
I am writing a program to tell how long it will take for a loan to be paid off supposing the desired loan is 100,000, the annual percentage rate is 6, and the monthly payment is 1,000. What happens is after I run the program, I get the output of "-24.60" after the last month is paid off. I'm trying to get it to where the last monthly payment is only enough to make the loan 0. Then I want the program to end.
#include <iostream>
#include <iomanip>
using namespace std;
[Code]....
Okay so I thought I had this assignment completed properly last week. Last night I found a bug while playing the game.why won't the game end when the player guesses the correct number? The game allows you to finish using the max number of guesses even though you already guessed the correct number.
Code:
#define _CRT_SECURE_NO_DEPRECATE
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#define MAXGUESSES 6
#define MAXGAMES 20
#define MAXNUMBER 100
}
[code]....
The problem with the code is on line 14 and says undefined reference to `push(int)
Code:
#include<iostream>
using namespace std;
void push(int n);
int pop(int &n);
struct elem{
int key;
[Code]...
I was wondering if it's possible to push a button on a website programatically. Unfortunately the button link is invisible, otherwise I could simply use the URL it links to. So is there a way to do it in c++ and if so, how?
View 4 Replies View RelatedHow can push data into the vector <list<Edge>> adjList? adjList[n].push_back (e);//gives error.
struct Edge {
int from_node_number;
int to_node_number;
int weight;
};
vector <list<Edge>> adjList;
Edge e;
for (int n=0; n< graph.size(); n++)
adjList[n].push_back (e);
string answer;
cout<<"5.Newton's which law states that F=ma?";
cin>>answer;
if (answer == "newton's second law")
[Code].....
I tried to create a multiple choice list and I want to assign the value of the answer option chosen by the user so I can use it later on in the code. Later on in the code i've asked how many people (p) want a drink and multiplied it by the chosen size to calculate the price c = p * n where c is cost, n is price and p is number o of people At the bottom i tried to assign parameters where depending on what option the user has chosen n will be assigned to the chosen value...
{
printf("SELECT TYPE OF PAINT:"); /*multiple choice of paint */
printf("1. Large ");
[Code]....
I am trying to create an expression creator that prints the work out too, not just the answer.
Code:
#include <iostream>
#include <windows.h>
using namespace std;
void p1();
void p2();
void p3();
double P,P2,p,ans,ans2,ans1,restart;
[Code] .....
I've been trying to get the numbers for hours now but i can seem to get it right. Here's the problem below:
During the initial period, when the heater is not yet functioning at peak efficiency the heating will increase the temperature inside the building at a rate given by the following equations. During the initial period when the air conditioner is not yet functioning at peak efficacy the air conditioner will decrease the temperature inside the building at a rate given by the same equations.
Interval = (Time since turning on / 2.0 ) - 3.0
Factor multiplying Temperature change per minute = exp( Interval) / ( 1 + exp(Interval) )
These equations can also be used after the heating or air conditioner reaches peak efficiency. These equations converge to 1, so after the heating or air conditioner reach peak efficiency these equations will always give a value of 1.
the value of these equations needs to be multiplied by the RATE TEMPERATURE CHANGES. The RATE TEMPERATURE CHANGES is EITHER the change in temperature inside the building in degrees Celsius per minute caused by heat being extracted by the air conditioning OR the change in temperature inside the building in degrees Celsius per minute caused by the heat being generated by the heating .Temperature change in degrees per minute = Factor multiplying Temperature change per minute * RATE TEMPERATURE CHANGES
Temperature at end of this interval = Temperature at the start of the interval + temperature change due to heat escaping during the this interval + temperature change due to heat generated by the heating system during this interval + temperature change due to heat removed by the cooling system during this interval
i have a:
...rate of -.05 for heat escape w/o cooling or heating
...rate of 0.10 for heat escape w/ cooling
...rate of 0.125 for heat increase w/ heating
...Starting temp=38.00
...Time interval 3.50
I can't seem to find the temp at the ending interval? What i tried doing:
Code:
#include<iostream>
#include<cmath>
using namespace std;
int main () {
double intervals=0.00;
double tempPerMin=0.00;
[Code] ....
The temperature at the end of the interval is suppose to be 37.81 but i can't get the answer. I'm pretty sure this is a logical error from the equations i used but i can't seem to find it.
I've been playing around with making a linked list in C and am having trouble adding to the beginning of the list. For the add_beg() function: the statement "head = newNode" only works locally. This leads me to believe this is a pointer problem. However, the add_end() function works correctly. Ideally, I would like to print "0 1 2 3 4" after using the add_end(root, 0). Currently, print only gives me "1 2 3 4".
#include <stdio.h>
#include <stdlib.h>
//Create a node struct
typedef struct node {
//data
int val;
[Code] .....
I am pretty new to windows programming, but i get around with small applications.
Now I want to create a window with 10 push buttons, and was just wondering if there is some smart way, maybe in a loop to create multiple buttons.
Also, on a very populated window, is there a way to maybe have the WM_CREATE commands stowed away in another cpp file? Just for readabilty.
So I'm writing a program that will read a text file and it will do certain "functions" the text file will be like a game, and the program will be able to run many different games. The problem i'm having is in one of the "functions" i believe it's the one meant to get a correct choice from a file and a user input and put them into strings, it gets the wrong input. I know this because i tested both strings the "function" writes too. it gets the correct file answer but the user input is always "c" for some reason.
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <stdlib.h>
using namespace std;
int progfiles() {
[Code] ....
This is the code, most likely the section that is surrounded with "///" contains the problematic "functions." This is the command Line output...investigate why they're dieing or continue on your journey?(i-investigate/c-continue) got input and answer
i
c
i
Press any key to continue . . .
The got input and answer are tests to make sure it got both, the first 'i' is my input, the 'c' is what it says my input is, and the 'i' is the correct answer from the file. this is the part of the file that the program reads to get that output
"1 Do you want to go investigate why they're dieing or continue on your journey?(i-investigate/c-continue) 2 8 i 7 3 4 You continue on picking up speed to get to the egg first.. and.. Oh No, You accidentally bumped into the walls! 2 12 5 1 You go over, and as you realize the walls are acidic and that's why the other sperm are dieing.. 2 6"
I have two unassigned variables A,B . My program goes as follows
#include <iostream>
#include <string>
#include <cmath>
#include <stdlib.h>
using namespace std;
bool die (const string & msg);
[Code] ....
This a program that makes a calculator in which this is a small portion of it, all the exponent numbers work exceptfor anything ending in 5.
Examples go as follow 2^3=8, 3^2=9, 5^2=24
I want to why this happens, is it because they are unassigned variables?
Currently developing a windows form application that will be used to listen to certain events in a github repo (mainly push).
I have been struggling with this for a few days now and still have no code to show for this apart from the popup that will show how to achieve this.
Its been mentioned to use webhooks? However I'm not sure if these work with windows forms?
I have looked at octokit and this doesn't look to achieve this either.
how to get a windows form to listen to a push event from github?
See the push/pull of modeling in SketchUp, it is very convenient, I would like to achieve in my own programs, Is it possible?
View 2 Replies View Related I'm using MSVC++ and it builds sucessfully but somewhere something is obviously messed it. Once i try to debug it just shows weird numbers.
int k=0; //could this be the problem??? since 0 would be over writing any given value. but if i leave int k; it showsa warning and MSVC would count that as an error
#include "stdafx.h" //Header file section
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
//structure declaration
struct menuitemtype
[Code] ......