C++ :: How To Calculate Certain Cells Of Numbers Instead Of Entire Text File
May 24, 2014
As you can see, the code below calculates the average, sum, number of items, etc, for a list of numbers in two separate files and compares them with one another.
e.g. we will have a text file of 10 numbers;
45
65
24
26
26
36
35
100
109
433
etc...
The problem is that the code will perform calculations on all the numbers in the txt. or csv. file. This is problematic because if there is any text in the file, e.g. headings, then the calculations will not be performed. For instance, suppose that I only wanted to include rows 5-10 in the calculations, how would I specify this in my C++ code?
#include <iostream>
#include <cmath>
#include <math.h>
[Code]....
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Apr 1, 2014
i've been trying to figure out to search for a word in a text file and then display everything in the same row as the word found int ie this is whats in the file
john doe 3/21/1920 tech support review team 45,000
so user wants to find tech..and everything associated with it.
so program search for tech, when it does it then display the whole row.
john doe 3/21/1920 tech support review team 45,000
I can figure out how to search for a word, but no clue how to get it to then print out the row. This is all I can figure out to do.
ifstream FileSearch;
FileSearch.open("employee");
if(FileSearch.is_open())
{string letters;// search word would be store here
string row; ??stores entire row as string
while(1)
[Code]....
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Apr 9, 2013
how to extract certain cells for an excel file that is continuously updating. I had a look at [URL] since they provide a .h library that is useful for this situation, but could not find any code.
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Feb 21, 2014
I have written two separate programs; Program 1 calculates the average of an array of numbers which has been hard-coded into the program. Program 2 reads an array of numbers from a text file and displays them on the output.
I wish to combine these two programs into one by making Program 1 read the array of numbers from the file and then calculate the average using that instead of the array { 84, 92, 76, 81, 56 } as outlined below. I only wish to display the average in the output, not the number array as Program 2 does.
I have tried to do most of the work, I just need modifying the code slightly so it reads the number array from the file and calculates the average.
Program 1
#include <iostream>
#include <cmath>
#include <math.h>
#include <fstream>
#include <string>
#include <numeric>
using namespace std;
int main() {
const int nNumStudents = 5;
[Code] .....
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Nov 11, 2013
I need my program to read a list of numbers from and input file, random.txt, and calculate the following statistics on those numbers:
A. The number of numbers in the file.
B. The sum of all the numbers in the file.
C. The average of all the numbers in the file.
D. The largest number in the file.
E. The smallest number in the file.
#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
[Code]......
This is what I have so far but I'm not sure if it is right. I can't get the input file to open.
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Feb 26, 2013
is there anyway to read an entire file and print in on screen? file consists of strings and integers!
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Jan 28, 2013
I would like to store the entire content of a file in a single c-string variable or in a standard string class variable. Is there a function that will do this for me? I am familiar with functions that get one character or one line at a time but I don't think I've encountered a function that gets the entire file. Does this function keep or disregard the end-of-line character? If no such function exists, I would write my own function to create and return such a variable.
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Mar 30, 2014
I am writing a program which compresses files into .zip files.
Here's my problem: Whenever I want to compress an executable file, my readFile function does not read the entire file. When I extract the .exe I get a very tiny and incomplete file.
Here's the function I use to read files:
std::string miniz_wrapper::readFile(FILE* f, int MAX_FILEBUFFER)
//MAX_FILEBUFFER has a default value of 65536 {
char* tmp;
std::string tmp_s;
int count = 0;
[Code] .....
Prior to reading, every file is opened using fopen with the mode "rb".
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Feb 23, 2013
The program runs fine but i just want it to read the inputs from a text file rather than user manually entering it! what changes should i make in the codes..
Code:
#include<iostream.h>
#include<stdio.h>
#include<conio.h>
#include<math.h>
float friction,flow;
[Code] ....
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Sep 25, 2014
I am trying to read numbers stored in a txt file to populate an integer array. The problem is that the numbers read from a file have to be treated as strings and then I am not able to put them in an integer array.
I tried the stoi function to convert the string in 'box' into an integer but I am getting an error.
Code:
#include <iostream>
#include <stdlib.h>
#include <fstream>
#include <string>
using namespace std;
int main() {
int amount=10;
int k[amount];
[Code] ....
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Jan 14, 2014
the text file looks like: one hello hi twenty-five billion fifty maths three thousand and two
output: count the number of text numbers: 4
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Sep 20, 2013
I want to write a c++ code, which will read in a file like this:
A: 10
B: 20
C: 30
while in the code, I would need the value of A B C, how can I let the cin ignore the labels like A:?
of course, I can write a file as
10
20
30
.
.
.
and use cin>>A>>B>>C; to read in those
but in this way, when the number of values increase, it is really hard to remember who is who?
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Mar 27, 2013
I am working on a project for school that has us read in a text file that contains 8 lines of SSN and grades. I am not sure how to go about reading in the lines and differentiate between the SSN and grades in the calculations.
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Jan 3, 2014
I have a list of numbers with decimal point saved in a text file (grade.txt) like this:
80.2
85.7
57.2
90.0
92.9
74.0
76.5
...
I would like to write a small program to display the top 10 highest and lowest grade points.
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Apr 28, 2015
My code compiles, but it doesn't get past this:
Here's the code:
#include <cstdlib>
#include <iostream>
#include <fstream>
using namespace std;
//ofstream random_numbers("randIntContainer.txt");
ofstream random_numbers("D:/StudentData/Documents/DataStructures/SortingAlgorithms/randIntContainer.txt");
void generateNumbers();
[Code] ....
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Feb 16, 2013
I have a text file like below read.txt:
1.0 2.0 3.0 4.0
2.0 3.0 4.0 6
5.0 7 1.0 5.0
calc.cpp:
void main() {
FILE *fp;
fp=fopen("read.txt","r");
double *read_feature = new double*[3];
[Code] ....
I want to count all the numbers in my text file (read.txt). Read text file consist of floating and integer number. Answer for the above file would be integer=2 and float =10.
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Apr 3, 2015
I need to write a program that reads four float numbers from the input.txt file, then it prints out the greatest of the four numbers into the output.txt file. I did everything, but the numbers don't print out.
#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream inFile;
ofstream outFile;
float number1, number2, number3, number4;
[Code]...
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Apr 28, 2013
I wrote a program which sends a starting and ending range to other processes and the processes calculate the prime numbers in that range and return the count of prime numbers to the head process, process 0. But this is not working properly at the moment. I realize I still have to split up the range based on how many processes I have...I still have not figured out how I want to set that up. I
Code:
#include <stdio.h>
#include <stdlib.h>
#include <mpi.h>
int isPrime(int num);
int main(int argc, char **argv){
}
[code]....
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Apr 25, 2013
For this program i had to create an HTML with the cosine similarities. I got everything, i just need to color in the lowest and highest amount in the table, but I don't know how.
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <iomanip>
#include <string>
#include <cstdio>
using namespace std;
const int ARRAY_OF_ASCII_CODES_SIZE=256;
const int NUMBER_OF_FILES=8;
[Code] .....
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Apr 22, 2013
how to compare two "cells" in a 2 dimensional array. Im almost sure it's something with in my logic when checking the cells.
#include<iomanip>
#include<iostream>
using namespace std;
int main()
{//variables
int row_count(0);
[code].....
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Mar 21, 2014
I am trying to draw a 2d grid array for a battleships game. I need the grid to have a border around each cell, how to do this. so far my code is:
#include<iostream>
using namespace std;
int main(){
int grid[5][5] = {{0}};
[Code] .....
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Apr 3, 2014
I'm trying to make a program who increments the value of all cells of an array but when i try to compile i get this error message:
Quote
error: incompatible types when assigning to type "int[9]" from type "int *"
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Dec 16, 2013
Question: Write a program that calculates sum of the numbers in the given positions.
Input specification : There will be 4 lines of data. You will be first given the size of the positions array (n). Then, the following line will have n integers which is an ordered list in increasing order and 0 < n ≤ 3000. The third line will give the size of the number array (m) where 0 < m ≤ 5000 and The last line will have m integers between -30000 and 30000.
Note: The positions start from 1 and goes until m.
Output specification : Show one integer number. Sum of the Numbers in the given Positions.
Sample Input I
5
2 5 7 9 10
10
1 8 7 5 17 15 6 7 19 12
Sample Output I
62
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Mar 10, 2014
How do you use char instead of unsigned to calculate numbers? This is using char only and nothing else.
Step 1: I ask the user to enter a number.
Step 2: User enters a number.
Step 3: Number user entered is going to be that number squared or cubed or w/e.
For example;
"Enter a number: " 3
" Number you entered multiplied four times: " 81 (Since (3)*(3)*(3)*(3) = 81)
Another example;
"Enter a number: " 5
" Number you entered multiplied four times: " 625 (Since (5)*(5)*(5)*(5) = 625)
Code:
Char num;
cout << "Enter a number";
cin >> num;
cout << "Number you entered multiplied four times: " << (num)*(num)*(num)*(num) << endl;
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Feb 17, 2014
Write a C program that calculates the sum and average of a sequence of numbers. Assume the first number specifies the number of values remaining to be entered. If the first number is less than 1, then the program should display an "Invalid Entry ... Please enter a positive number." message.
THIS IS HOW IT SHOULD COME OUT...
Enter the number of values to process 0
Invalid Entry ... Please enter a positive number.
Enter the number of values to process 3
Enter 3 numbers:
1
2
3
Sum: 6
Avg: 2
THIS IS THE CODE I HAVE SO FAR...
#include <stdio.h>
int main(void) {
int total=0;
int howmany;
int i;
int value;
[Code] ....
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Feb 28, 2013
Below is a code that is used to calculate complex numbers (a+bi, where i = sqroot (-1)) through multiplication and addition.
However, on my output file, no Header is being printed; the only thing that is being printed is "8 + 7i + = "
"complex.h" is included at the end of the code.
Code:
// Trey Brumley// CMPS
// Dr. Tina Johnson
// March 1, 2013
// Program 2: Classes
// This program will demonstrate the use of classes by using a custom "complex-number" (a+bi) class.
[Code] ......
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