I am trying to get the index of a value by inputting the value:
For example if i have
int arr[5]={22, 85, 58, 78, 69};
indexOfItem(arr, 78);
and have the output be:
the index of the item is: 3
I was trying to debug a code which was behaving in an abnormal way
Code:
#define NOOFELEMENTS 32
unsigned char array[NOOFELEMENTS];
unsigned char array1[23];
init() {
for(i=0;i<=32;i++)
{
array[NOOFELEMENTS] = 0
}
}
I could trace the above one of the mistakes where the array initialization is crossing the array limits and writing into array[32] which is not available. My question does it overwrite into array1 as it is declared below array or it can write into any other location.
If i have current index and row/columns count how do i get on which row and on which column index is individually?
This is what i have tried, but column index is incorrect:
#include <iostream>
int main()
{
int rows = 5;
int colm = 6;
int inx = 12;
int rowInx = inx % rows;
int colInx = inx % colm;
std::cout << "row: " << rowInx << std::endl;
std::cout << "col: " << colInx << std::endl;
return 0;
}
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Chapter7Problem13
[Code] .....
I keep getting an out of bounds error in my code
I'm suppose to enter number of orders then enter those orders then calculate a discount and net price display the orders, discount, net price then the totals at the bottom ....
I want to get the starting index of structure elements, whoz id are 0,1,2,3 Like in below code col_data[0] (starting id=0) col_data[3] (starting id=1) col_data[5] (starting id=2) col_data[8] (starting id=3) Code:
Code:
typedef struct gg{
int id;
int value;
}
[code]....
How can i skip remaining loop iterations when it get that index and will go back to loop again for getting next element index?
I need function to determine where to place new element in sorted array. I want to use binary search to find index where element should be placed, when push all others.
Prototype should be something like
int WhereToPlaceElement(ElementType hash); // uses private atribute ElType** elements
I have tried my best to write, but all tries ended in inf loops and reading invalid locations of array.
How can I use one index to iterate between all the values
for example:
//I defined
vector<typeA> VA(XD,typeA());
vector<typeB> VB(XD,typeB());
//then the standard method to iterate is:
for(vector<typeA>::Size_type i=0; i<VA.size(); i++) {
VA[i].functionA();
VB[i].functionB();
}
the other way, use int,
//I defined
vector<typeA> VA(XD,typeA());
vector<typeB> VB(XD,typeB());
//then the standard method to iterate is:
for(int i=0; i<VA.size(); i++) {
VA[i].functionA();
VB[i].functionB();
}
none of above make me feel formal...
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Mind_Puzzle {
public partial class Form1 : Form
[Code] .....
When i try to start it, it doesn't start or it gives an error on "UsedList[i] = false;".
The error: "An unhandled exception of type 'System.IndexOutOfRangeException' occurred in Mind Puzzle.exe
I am suppose to make a value to attach to a array and then have it stop on the last one with an error if it were to go past (done more or less).
Problem is I am suppose to use a int to hold the value of the array and then add 1 each time but my question is, if you were to add another number to increase your current array slot, what would that look like as I image that going array[0] + 1 isn't going to make it array[1].
I need understanding the logic behind this function. The function is supposed to "Return a pointer to the character at the index given" . For example, what exactly are we declaring at "(char * const c, int index)"? where does "index" come from or equal to in the body of the function?
Code:
1
2
3
4
5
6
7
8
char * GetValueAtIndex(char * const c, int index)
{
int i = 0;
char *p = c;
while (i++ != index)
p++;
return p;
}
Im problem with parsing. I read file line by line and i store another class bu when i parse the line last word gone example "I study algebra and discrite math" math didnt store.Why ? i want to calculate index section for document how can i solve this problem??
Code:
void DocumentIndex::parse(){
size_t pos = 0; //position
pos =line.find(" ");
while( ( pos = line.find(" ") ) != std::string::npos )
{
[code]....
I need to sort the elements in a 2d array by their index (starting from 1) for example:
Code:
1 5 3
4 7 8
4 10 2
10 is the biggest element and its index is 32, after 10 comes 8 with index 23 etc etc...
Looking for examples for two orders ... By descending and ascending order...
my question is located as a comment beside the last printf ! ? check the comment near the last printf the comment is ==>here i get a sequence of numbers the question is how can i copy this sequence to an array and the print the array out ?
Code:
#include <stdio.h>
#define N 30
#define n 100
[Code]....
here i get a sequence of numbers the question is how can i copy this sequence to an array and the print the array out ?
Here's my code
bitIndex = 5;
Code:
bool getBS(PBitSet _this, int bitIndex) {
if(_this->bits & (1 >> bitIndex))
return true;
else
return false;}
I want this code to return the value of the bit at position bitIndex. It can be either false or true. The problem is, that it always returns false, even thought I enter 16 as my number, so the 5th bit should be true.
0000|0000 = 0
0001|0000 = 16
I am storing info in a vector but I want to store certain info at a particular index. I am new to using vectors and am unsure about have to do this. I am aware of the insert method but am confused on how to use it to store at a particular index.
View 1 Replies View RelatedTask: - Write a function `index` that converts an int from 0 to 5 into its word. (It should take an int and return a string.)
0 -> "zero"
1 -> "one"
2 -> "two"
3 -> "three"
4 -> "four"
5 -> "five"
anything else -> "other"
#include <iostream>
using namespace std;
string index(int x) {
if(x=0)
return "zero ";
else if(x==1)
[Code] .....
It compiles but doesn't print anything.
I am new in c++ and I am having difficulties with finding values in two vectors. Basically, I have two constant integer vectors u and v . They have the same length. I would like to select all the values in u and v, that respect those statements:
u>= x1 & u<= x2 & v>= x3 & v<= x4
x1, x2, x3, x4 are predefined integers.
Below is the code i use to do that in Matlab:
idx = find(u>=x1 & u<=x2 & v>=x3 & v<=x4);
A=u(idx);
B=v(idx);
But how to translate that in c++.
Design and implement the class myArray that solves the array index out of bound problem, and also allows the user to begin the array index starting at any integer, positive or negative. Every object of type myArray is an array of type int. During execution, when accessing an array component, if the index is out of bounds, the program must terminate with an appropriate error message. Consider the following statements:
myArray<int> list(5); // Line 1
myArray<int> myList(2,13); //Line 2
myArray<int> yourList(-5,9); // Line 3
The statement in Line 1 declares list to be an array of 5 components, the component type is int, and the componentst are : list[0], list[1]…list[4]; the statement in Line 2 declares mylist to be an array of 11 components, the component type is int, and the components are: mylist[2],…mylist[12].
This is what I have so far:
#ifndef H_myArray
#define H_myArray
#include <iostream>
using namespace std;
template <class myArray>
class myArray
{
public:
private:
return 0;
};
#endif
I have been learning c++ for about 1 month. So my problem is that suppose i have array[6]={10,-1,3,54,2,12}
I want to fill new array with {1,4,2,0,5,3}
because -1 is the lowest and its index is 1
2 is the lowest and its index is 4
3 is the lowest and its index is 2
10 is the lowest and its index is 0
12is the lowest and its index is 5
54 is the lowest and its index is 3
I want to sort from lowest to highest but using the index value. Here is what i have but the output i get is {1,4,2,4,5,5}
1,4,2 is right but then its wrong.
#include <iostream>
using namespace std;
void swap(int& v1, int& v2);
int main() {
const int size = 6;
int arry[6]={10,-1,3,54,2,12};
int sortedArry[6];
[Code] ....
I have problem with find the index of the following array.
int minimums[2]={201,201};//first initialize both to greater than maximum allowed
for (int index = 0; index < 200; index++) {
if(find_array[index] < minimums[0]) {
minimums[0] = find_array[index]; //Lowest number
[Code]....
Basically, I'm trying to figure out the index in an array from a pointer that is returned by either bsearch or lfind.
void *val;
void *begin = (char *)v->elems (I need to use this separate variable)
Then, I call on either search, which seems to be working fine...
val = bsearch(key, begin, v->count, v->elemsz, cmp);
I'm trying to do the following:
index = *(int*)((char*)value_to_find - (char*)start_ptr)/sizeof(cv->elemsz)
However it segfaults everytime I do this. My logic is that I cast both void pointers to type of char*, then subtract the distance b/w the pointers since you can't do pointer arithmetic on void. I divide this by the size of each element to return the index, which needs to be cast to an int. What am I missing here?
int sift(int a[], int b[], int n, int p) {
int i,k,x, tmp,index=0,count=0;
for(x=0; x<n; ++x)
b[x]=a[x];
[Code] .....
This is a function for a quicksort... Everything works; however, when I return index it returns the value for 'n'... I printed the value for index right before the function returns it and its 4, as it should be.
I'm supposed to read in a data file with fixed length records and fields, create a sorted index list in memory, and save that list to a file. Then I'm to write a second program that interactively (via the Linux command line) takes a key and the index file name, opens and loads the index file, searches for the given key using the index table, and opens and returns the correct data record.
The original file consists of a list of records with a key (int), a name (string of 8 characters max), a code (int) and a cost (double).
The RRN (relative record number) begins at 1, with the RRN at 0 representing a dummy record with only the size in the first entry.
Here is the data file I will be using.
8 blank 0 0.0
12345 Item06 45 14.2
12434 Item04 21 17.3
12382 Item09 62 41.37
[Code]....
The "File is Open" part will be replaced once I figure out what do do once the file is open, just used this message to verify that it was opening the file.
I'm getting "Index was outside the bounds of the array." computerInput.pher[i, 0] = computerInput.availperi[a]; on line 198 but I'm not sure what I need to do in order to correct it. My array seems fine to me and I do see that "i" is showing 0 when debugging and won't change. Either I'm missing something or wrote my array wrong.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace TestComputerOrder {
class TestComputerOrder {
int style, board, hardDrive;
[Code] .....
My program takes the values from one array and searches for their index position in another array(linear search algorithm). This is an example of the issue I am having(its not part of the actual code below) :
a[]={1,2,3,4,5,6}
Arr[]={1,2,2,3,4,5}
If it finds 1 in arr, it returns 0, which is fine but if it finds 2 in arr it return 1 and 1 instead of 1 and 2. any thoughts on how to fix this?
Code:
for (int q=0; q=size2;q++) {
int rs=secfunc(array1;size1;array2[q])
if(rs>=0) {
cout<<rs << "
";
[Code] .....
I was just reviewing some code, and my eye fell on a bit of regex that's intended to parse a date/time stamp into a date and time.
The timestamp uses shorted month names. The regex had all the possible month names to match the entire pattern. If it does, it went through a 2Nd loop to convert the month name into a 1 to 12 numeric value...
This made me wonder, since the regex is already doing the work to verify the alternation, can't it at the same time tell me which of the possible alternations it matched and use that to calculate the numeric value. So basically
Code:
std::regex reMonth("Some more regex stuff here (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec).");
CString strTest("Some more regex stuff here Aug.");
std::cmatch res;
if (std::regex_match(strTest.GetString(), res, reMonth)) {
//int iMonthNum = res[1].something(); // some code here that returns 8 for Aug.
}
Or is there really no other way out than doing a 2nd level verification to figure out the actual month number. (The real regex is a bit more complex than this).