Put number in array C++

0 votes
asked Nov 30, 2017 by Gathern
I need to put in array a number entered by user with using -for,-while,-dowhile.

1 Answer

0 votes
answered Dec 3, 2017 by Luna
edited Dec 3, 2017
//Should i have used all the 3 loops? lol(?)

//and yeah i know, there is more elegant solutions for this out there, anyway i hope it helps

#include <iostream>

using std::cin;
using std::cout;

//This functions receives an array of int, it's size, the position to insert an element, and the element, and returns a new array.

int *addTo(int nArrA[], const int SIZE, int nPos, int nNumber)
    //creates a new array with one more position
    int *nArrB = new int[SIZE+1];
    //saves the value in that position
    int nValue = nArrA[nPos];
    for(int i = 0; i < SIZE; i++)
        if(i == nPos)
            nArrB[i] = nNumber;
            nArrB[i+1] = nValue;
        else if(i > nPos)
            nArrB[i+1] = nArrA[i];
            nArrB[i] = nArrA[i];
    return nArrB;

int main()

    //Create and array
    int nArray[7] = {0, 1, 2, 3, 4, 7, 12};

   //this will get the array's size
    int size = (sizeof(nArray)/sizeof(nArray[0]));
    int nValue = 0, nPos = 0;
    cout << "Type the value to insert in the array:\n";
    cin >> nValue;

    //Please do not explode the program, use some valid position.
    cout << "Type the position to insert the element:\n";
    cin >> nPos;
    int *arr = addTo(nArray, size, nPos, nValue);
    for(int i = 0; i <= 7; i++)
        cout << *(arr + i) << " ";

btw, sorry for my broken english
Welcome to OnlineGDB Q&A, where you can ask questions related to programming and OnlineGDB IDE and and receive answers from other members of the community.