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  1. // Castulo Jason Quintero   	CSC5	     Chapter 5 homework, pg. 294 #1
  2. //
  3. /**************************************************************************
  4.  * Compute Sum of Numbers
  5.  * ________________________________________________________________________
  6.  * This program will accept user input for a number
  7.  * and will calculate the sum 
  8.  * up to the number entered
  9.  * ________________________________________________________________________
  10.  * INPUT
  11.  *	numInput			: Selected positive integer 
  12.  *
  13.  * OUTPUT
  14.  *	totalSum			: Sum of all integers 
  15.  *
  16.  *************************************************************************/
  17.  #include <iostream>
  18. using namespace std;
  19.  
  20. int main()
  21. {
  22.     // Initialize variables 
  23.     int numInput,				// Selected positive integer
  24.     	totalSum = 0;			// accumulated sum of all numbers
  25.  
  26.     // Input - User enters number
  27.     cout << "Enter a positive integer number: ";
  28.     cin >> numInput;
  29.     cout << endl;
  30.  
  31.     // While loop to validate input
  32.     while(numInput <= 0){
  33.         cout << "Only positive integers accepted! ";
  34.         cout << "Try again: ";
  35.         cin >> numInput;
  36.     }
  37.  
  38.     // for loop - adds numbers together
  39.     for(int i = 1; i <= numInput; i++){
  40.         totalSum += i;
  41.     }
  42.  
  43.     // Display result
  44.     cout << "The sum of the numbers from 1 to ";
  45.     cout << numInput << " is " << totalSum << endl;
  46.  
  47.     return 0;
  48. }
Success #stdin #stdout 0.01s 5300KB
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stdin
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9
stdout
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Enter a positive integer number: 
The sum of the numbers from 1 to 9 is 45
https://ideone.com/UPBLRo
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
secret

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