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  1. //Gabriel Camacho   				CSC5              Chapter 5, P.  294  #1
  2. //
  3. /******************************************************************************
  4.  * 
  5.  * Calculate Sum of Intergers
  6.  * ___________________________________________________________________________
  7.  * The purpose of this program is to ask the user
  8.  * for a positive integer and use a loop to calculate the 
  9.  * sum of all integers from 1 up to the number entered, 
  10.  * then display the total.
  11.  * __________________________________________________________________________
  12.  * Input
  13.  * Num: 1-50 Number inputed 1 through 50
  14.  * 
  15.  * Output
  16.  * Sum :1 -50   the calaculated sum of the numbers 1 to what was inserted
  17.  * 
  18.  *
  19.  ******************************************************************************/
  20. #include <iostream>
  21. using namespace std;
  22.  
  23. int main()
  24. {
  25.     int number;
  26.     int sum = 0;
  27.  
  28.     cout << "Enter a positive integer: ";
  29.     cin >> number;
  30.  
  31.     while (number <= 0)
  32.     {
  33.         cout << "Please enter a positive integer: ";
  34.         cin >> number;
  35.     }
  36.  
  37.     for (int i = 1; i <= number; i++)
  38.     {
  39.         sum += i;
  40.     }
  41.  
  42.     cout << "The sum of all integers from 1 to "
  43.          << number << " is " << sum << endl;
  44.  
  45.     return 0;
  46. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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50
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Enter a positive integer: The sum of all integers from 1 to 50 is 1275
https://ideone.com/Hfa5sB
language:
C++ (gcc 8.3)
created:
14 days ago
visibility:
public

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