SO Im supposed to write a program that uses arrays to calculate the sum and display it. I keep getting the error that says the sum has to be initialized.
#include <iostream>
using namespace std;
//Function prototype
int sumArray(int);
const int NUM_ELEMENTS = 5;
[Code] .....
I recently signed up for ES201 class and am confused with how to compile a program in the C language that will convert ACT scores to SAT scores.
View 5 Replies View RelatedI assume floating point numbers in C++ have a default maximum of 5 decimal places. You can use setprecision() but is this limitless?
So how would find say write a program to calculate Pi to N number of places?
#include<fstream>
#include<iostream>
#include<string>
[Code]...
I'm new to coding, and I have to write a program to display a class schedule to the user (the classes are entered into the program in strings like this:
Code:
course Calculus3 = {80934,"MATH",11,"Calculus 3","Edward Turner","M,W",950,1100}; )
in the format of an excel file (the user picks the classes they want to have) that then displays the course title and professor in the correct cell corresponding to the day/time the class meets. I've been googling it, and from what I've read, I think I need to use a csv file, but I don't know how to input the data into the file. I know the general format for how data is entered, but I don't know how to write it into a specific file or if I even have to (we covered txt files very briefly in my class, but never touched csv files).
My tasks was to write a program which finds difference between two arrays (elements which are in first array but not in second and vice-versa). Program works, but something wrong is with the memory allocation for array.
My code is:
main.c Code: #include <stdio.h>
#include <stdlib.h>
#include "header.h"
[Code]....
I am writing a class that dynamically allocates an array that holds a user-defined number of test scores (test scores go from 0 to 10 both included). Once all the test scores are entered and validated (values only between 0 and 10, both included), the array should be passed to a function that sorts them in ascending order. Another function should be called that calculates theaverage of all the scores.The main program should display the sorted list of scores and the average of the scores with appropriate headings.
View 6 Replies View RelatedOne of my class assignments is to create a program that receive a .txt file containing a students name and their grades as follows:
John K. 99, 87, 57, 89, 90, 95
Amanda B. Jones 100, 88, 76, 99, 86, 92
etc..
The number of students is unknown until run time. You have to take those grades and average them weighing the first (4) at 10% a piece and the last (2) at 30% each.
Then return an output file with the students name and their letter grade A,B,C,D,F based on their computed score. In addition, on screen it needs to display the average scores for each Q1, Q2, etc. as well as the minimum and maximum for each test on the screen. I am having a hard time in assigning the scores to a variable so that they can then be computed as an average and then used to determine a letter grade. I have begun to write the code and am a bit stuck..here's what I have so far:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
[Code]....
A problem that lets the user enter any positive integer, but you do not have to check for this, and then calculates the sum of the digits and displays this to user. For example, if user enters 14503, the outputted sum of the digits would be 13.
Here is my program
#include <iostream>
int main(void) {
int integer, sum=0;
while(integer) {
sum += integer % 10;
integer /= 10;
} cout << "The sum of the integers numbers is " <<sum;
return 0;
}
I'm trying to write a code to calculate the minimum number of coins needed to cover a change. It works fine but i want to display a message telling the user to try again if they type something that's not a number or a negative number. But it's not working. When i type a negative number, the program runs normally and displays a negative value of coins instead of showing the message. And when i type something that's not a number, the program just keeps showing a lot of zeros nonstop. And when i try to compile it with 'unsigned float' instead of just 'float' i get errors.
Code:
#include <stdio.h>
int main()
{
unsigned int coins;
float change;
unsigned int n25, n10, n5, n1;
unsigned int r25, r10, r5;
}
[code]....
I'm new to c i've been trying to write code everyday, and recently ive been reading a book and decided to write my own program with what ive learned with it, basicly you get a choice for how many different main courses you would like to have (right now you can only choose 1) and then you can choose which course you would like, it then asks for the amount of guests you would like and calculates how much food you will need to feed the guests. My code compiles but the program doesn't work properly
Code:
#include<stdio.h>
float guests;
float lbs;
int guest_att(guests)
{
puts("how many guests will be attending?");
scanf("%d",& guests);
[Code] .....
and this is how the program runs
Code:
Scotts-MacBook-Pro:learnc scott$ ./wed
how many main course choices will you have?
1
Please make a selection.
1. Chicken
2. Fish
3. Steak
invalid choice
Please make a selection.
1. Chicken
2. Fish
3. Steak
1
how many guests will be attending? 55
You need 0.000000 pounds of of chicken
Please make a selection.
1. Chicken
2. Fish
3. Steak
invalid choice
Please make a selection.
1. Chicken
2. Fish
3. Steak
reading and writing 2D arrays I've been trying out a few tutorials using FileStream but I couldn't get any of them to work.
Anyway what I'm trying to do is save the playerArray to a .txt file and then read from that .txt into the fields within the GUI. This is supposed to act as a database.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
[Code]....
I want to write a code that gets three values from the user and puts them into three arrays. When the user enters -999, I want to print out a chart showing all the values they put in. This is what I have so far but it wont build. It tells me std::string is requested, but I'm not sure where to put it, and printArrays is declared void. How can I fix this?
#include <iostream>
#include <string>
using namespace std;
const int ARSIZE = 400;
void printArrays (string reportTitle, int levelsArray[], int scoresArray[], int starsArray[], int i);
[Code] ....
I am having a problem with my program to calculate the GPA of a student. The problem that I am having is that I am not able to get my Total Point Value to display the sum of the two arrays. The multiplication for the array is correct and will display correctly, but instead of putting the total into the accumulator it will display the totals in a column. I have tried moving the coding for the calculation out of the loop that converts the letter grade into a point value,and placing it in it's own loop, but I still get the same display output. Below is the code that I have so far. I still have a few elements to add to the code, but they will be easy once I get this display to work right.
#include <iostream>
#include <iomanip>
#include <fstream>
using namespace std;
// Global const
// prototype
int main () {
// Varialbes, Arrays
[Code] ....
There is one question :
Considerint A[10]={ ....................}; // already filled
int B[10]={ ....................}; // already filled
Using PIONTER NOTATION ONLY, write a function that receives two arrays of integers like A and B above. The function should swap the values in A and B. You may NOT use array notation [ ]. Also, you have to use pointers to move among array cells. Note: Both arrays are of the same size, and size should be variable in the function.
Place the even lucky numbers in an array called evenList, the odd lucky numbers in an array called oddList, and the negative lucky numbers in an array called negList.
//So in main main i passed the array as parameter and the size;
void lucknumberlist(int favnum[], int size) {
int even = 0, odd = 0, neg = 0;
int evenArray[even];
int oddArray[odd];
int negArray[neg];
if(favnum[even] % 2 == 0) {
evenArray[even] = favnum[even];
[Code] .....
I'm still fairly new to c++ and am having trouble with dynamic arrays. My task is to create an array for test scores. The user needs to define the size of the array and then input data to later sort and calculate the average.
Below is what I have so far. I am struggling with the user input part. I receive the following errors for the data input of the individual scores:
"error C2108:subscript is not of integral type"
"IntelliSense:expression must have integral or unscoped enum type"
Code :
#include<iostream>
#include<iomanip>
using namespace std;
int main() {
//user input total number of scores
cout<<"Please enter the total number of test scores."<<endl<<endl;
[Code] ....
I am trying to display the following arrays.
int a[4]={5,9,2,10}
int b[3][3]={1,2,3,4,5,6,7,8,9}
int c[2][3][2]={1,2,3,4,5,6,7,8,9,10,11,12}
Using these call statements
Display (a,4);
Display(b,3);
Display(c,2);
I'm not sure on how to put this all together but this is what I have so far.
Code:
#include<iostream>
#include<iomanip>
#include<string>
using namespace std;
} int a[4] = {5,9,2,10};
Display(a, 4);
[Code] .....
Code:
// declare child arrays
public string[,] childcolor;
public string[,] childgeneo;
// create dictionaries
public Dictionary<string, int> colors = new Dictionary<string, int>();
public string color; // name for dictionary
public Dictionary<string, string> geneo = new Dictionary<string, string>();
[Code]...
I'm getting "field' is used like a 'type' error on jw.childcolor which causes other parts to error out.
How do I fix this & why am I getting the error?
I want to convert the dictionaries to arrays to read & write sequentially.
i'm trying to write a calculator. the user will enter the terms and they will be stored in arrays. i will be storing those terms in string arrays and then later turn them to double to work with them. but the user should be able to enter terms like sin(252) and the program should be able to recognize it and calculate it.
View 4 Replies View RelatedA company uses two text files: one to store employees' details and another to log their sign in/out time.
The details file - called details.txt" has the following format: ID, Name, Date of Birth, SSN, Department, Position - separated by spaces.
An extract from the file looks like this:
10 alice 4/23/1972 123-45-6789 support assistant
3 bob 6/7/1980 111-12-1134 logistics manager
1 carol 10/2/1963 987-123-1143 admin ceo
2 dave 10/3/1974 902-22-8914 admin cfo
17 erin 6/13/1991 126-83-1942 technology supervisor
15 frank 2/22/1987 303-12-1122 logistics assistant
"timelog.txt" contains daily logs of when employees arrive and leave. It has the following format: ID, Date, Arrival Time, Departure Time - separated by spaces. An extract from the file looks like this:
10 2/11 0900 1700
3 2/11 0930 1730
1 2/11 1100 2000
2 2/11 1000 1530
17 2/11 0900 1700
10 2/12 1000 1830
3 2/12 0930 1730
1 2/12 1100 1900
2 2/12 1030 2000
17 2/12 0900 1700
15 2/12 1100 1600
I have to write a program that searches for specific records using some search parameter, and displays them. Ok first i have to read the data from the files and store them. this is what i have so far....
#include <iostream> //Accesses libaries for console input and output
#include <fstream> //Needed to access the fstream object to read files
#include <string> //Needed to access the string class
#include <cstdlib>
[Code] ....
I know my class and array code is totally wrong i dont know how to store the data for the info is in integer and string form... do i use strings, arrays?
Write a program to enter data into a table and display on the screen in tabular form. I want to know where are the errors.
#include<iostream>
using namespace std;
int main() {
int table[3][4];
int r,c,i;
r=c=0;
while(r<=2)
[Code] .....
I'm trying to successfully run a program that calculates your BMI but, although it runs, it is not giving the the correct math. Instead, it gives me the number i've submitted as my weight as an answer. I'm using Visual Studio 2008 and the formula: weight / (height/100)*2
Here is my code
#include <iostream>
#include <cmath>
using namespace std;
int main() {
int weight;
int height;
double BMI;
[Code] ....
I need to write a program that can calculate fractions.
View 2 Replies View RelatedSo my midterm exam for programming is done. My program didn't run. Tried rewriting it once I got home. I am still getting an error that the program could not be run. Also, we weren't allowed to use the internet. So I didn't know how to calculate for the discounted rate.
I am using Microsoft Visual Studio 2010.
Given problem:
ABC Hotel offers 5-10% discounts depending on how much money has the user spent. If item purchase is lesser than 1000php (1USD is 43.19PHP) 5% discount is availed. Greater than 1000php then 10% discount is availed. Total price and discounted price should be displayed.
#include<iostream>
using namespace std;
main() {
float a,b,c,d,e,f,g,h,i,j,total,discounted_price;
cout<<"Please input price of first 1st item: ";
[Code] .....
I would to learn how could i calculate the offset of simple c program?
Lets say that I have that simple program:
Code:
#include <stdio.h>
int main() {
int x=1;
printf("x = %d", x);
return 0;
}