Modify this program so that it writes the values in two columns, like this:32.0054.0067.5029.0035.0080.00115.0044.50100.0065.00Total:622.00Complete the following file:total.cpp1#include #include 3 #include #include 5 using namespace std;47 int main()8 {// Prompt for the input and output file namescout << "Input file: ";string input_file; cin >» input_file;cout <« "Output file: ";string output_file; cin >> output_file;1011121314// Construct the streams for reading and writingifstream in(input_file);ofstream out(output_file);15161718// Check for errors and format the output streamif (in.fail() || out.fail(O) { return - 1; }out <« fixed <« setprecision(2);19202122// Read the input and write the outputdouble tot2324= 0;25double value;while (in >> value){out <« setw(15) <« value <« endl;total = total + value;}2627282930313233out << setw(8) << total « endl;3435return 0;36 }

In Output, you can specify each field width as 8 and finally total can be displayed with width 10

Answered: Modify this program so that it writes…

Modify this program so that it writes the values in two columns, like this: 32.00 54.00 67.50 29.00 35.00 80.00 115.00 44.50 100.00 65.00 Total: 622.00

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.

Question

Modify this program so that it writes the values in two columns, like this:
32.00
54.00
67.50
29.00
35.00
80.00
115.00
44.50
100.00
65.00
Total:
622.00
Complete the following file:
total.cpp
1
#include <iostream>
#include <fstream>
3 #include <iomanip>
#include <string>
5 using namespace std;
4
7 int main()
8 {
// Prompt for the input and output file names
cout << "Input file: ";
string input_file; cin >» input_file;
cout <« "Output file: ";
string output_file; cin >> output_file;
10
11
12
13
14
// Construct the streams for reading and writing
ifstream in(input_file);
ofstream out(output_file);
15
16
17
18
// Check for errors and format the output stream
if (in.fail() || out.fail(O) { return - 1; }
out <« fixed <« setprecision(2);
19
20
21
22
// Read the input and write the output
double tot
23
24
= 0;
25
double value;
while (in >> value)
{
out <« setw(15) <« value <« endl;
total = total + value;
}
26
27
28
29
30
31
32
33
out << setw(8) << total « endl;
34
35
return 0;
36 }

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