Question

c++

write a program that reads all values from a text file "data.txt" and stores them in ID array valuesl I. The input process from the file should be terminated when a negative value is detected. (An example of such a file is shown below). Also, the program should copy from values[ 1 any value which has even sum of digits and its index (location) to two new arrays evenArr 1 and idxArrl I, respectively. In addition, the program must use a function named getValues() that takes 1D array and its size as inputs and returns three outputs: the evenArrl 1 array, the idxArrI 1 array and number of values that has been copied. The program should display both arrays before termination. data 51 33 61 71 411 5875 123

Answer 1

#include <iostream>

#include <fstream>

using namespace std;

int EvenSumDigits(int val){

int sum = 0;

while(val !=0){

sum = sum + val%10;

val = val/10;

}

return sum%2;

}

void getValues(int *Arr, int n){

int evenArr[10000], val = 0, id = 0, idxArr[10000];

for(int i=0 ; i<n ; ++i){

if(!EvenSumDigits(Arr[i])){

evenArr[val++] = Arr[i];

idxArr[id++] = i;

}

}

for(int i=0 ; i<val ; ++i){

cout<<evenArr[i] <<" "<<idxArr[i] <<endl;

}

cout<<"Number of elements: "<<val<<endl;

}

int main() {

int values[10000], val, n = 0, choice;

ifstream iFile("data.txt");

if(!iFile)

{

cout << "Error! the requested file data.txt'" << "' was not found" << endl;

cout << "Exiting ..." << endl;

exit(-1);

}

int sum = 0, min = 1000000, max = -1000000;

while (iFile >> val){

if(val < 0)

break;

values[n++] = val;

}

int evenArr[10000], idval = 0, id = 0, idxArr[10000];

for(int i=0 ; i<n ; ++i){

if(!EvenSumDigits(values[i])){

evenArr[idval++] = values[i];

idxArr[id++] = i;

}

}

for(int i=0 ; i<idval ; ++i){

cout<<"Value = "<<evenArr[i] <<" id = "<<idxArr[i] <<endl;

}

cout<<"Number of elements: "<<idval<<endl;

getValues(values,n);

}

=======================================================
SEE OUTPUT

saved clang version 7.0.0-3-ubuntu0.18.04.1 (t<c 0/final) clang++-7 -pthread -o main main.cpp ./main Value-51 id1 Value-33 id-2 Value- 71 id -4 Value 411 id5 Value - 587 id6 Number of elements: 5 51 1 33 2 71 4 411 5 587 6 Number of elements: 5 Files D main.cpp data.txt main.cpp 53 54 int sum = 0, min = 1000000, max =-1000000; 55 while (iFile >> val) 56 57 58 59 60 61 62 63 for(int i-0; i<n +i)í 64 65 if(val < 0) break; values [n+]val; int evenArr [10000], idval-0, id - 0, idxArr [10000] if( !EvenSumDigits (values[i])){ evenA r r [idval++] = values [i]; 67 68 69 70 71 for(int i-0; i<idval ; ++i)í cout<<"Value "<evenArr[i] <<" id"<<idxArr[i] <<endl 72 73 74 cout<<"Number of elements: "<<idval<<endl; 76 getValues (values,n); 78 79 80

Filesdtsaved data.txt clang version 7.0.0-3-ubuntu0.18.04.1 (tags/RELEA 0/final) clang++-7-pthread -o main main.cpp /mairn Value 51 id 1 Value 33 id 2 Value 71 id4 Value411 id 5 Value587 id 6 Number of elements:5 51 1 33 2 71 4 411 5 587 6 Number of elements:5 1 232 51 33 61 71 411 587 -5 123 main.cpp data.txt


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