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  1. /**************************************************************
  2.  *
  3.  * COUNT THE NUMBER OF WORDS AND FIND AVERAGE NUMBER OF LETTERS
  4.  * ____________________________________________________________
  5.  * This program counts the number of words in a string.The
  6.  * program asks the user to enter a string and then passes
  7.  * it to the function.The function accepts a pointer to
  8.  * a C-string as an argument and returns the number of words
  9.  * in that string. Then, the program uses a second function to 
  10.  * calculate the average number of letters.
  11.  * ____________________________________________________________
  12.  * INPUT
  13.  * inWords		: The string entered by the user
  14.  * 
  15.  * OUTPUT
  16.  * words		: Number of words in the string
  17.  **************************************************************/
  18.  #include <iostream>
  19.  #include <cstring>
  20.  #include <string>
  21.  #include <iomanip>
  22.  using namespace std;
  23.  
  24. 	//Prototype for functions
  25. 	int CountWords(char* string);
  26.  
  27. 	int CountLetters(char* string);
  28.  
  29. 	int main() 
  30. 	{
  31. 	//Declare variables
  32. 	int SIZE = 50;			// Holds size of the array
  33. 	char inWords[SIZE];		// Input - String of characters entered by user
  34. 	int words;				// Output - Number of words in string
  35. 	double average;			// Output - Average number of letters
  36. 	int Letters;			// Holds number of letters
  37.  
  38. 	//Prompt user for input
  39. 	cout << "Enter a string of characters." << endl;
  40. 	cin.getline(inWords, SIZE);
  41.  
  42. 	//Call on functions CountWords and CalcAverage
  43. 	words =	CountWords(inWords);
  44. 	words += 1;
  45. 	Letters = CountLetters(inWords);
  46.  
  47. 	//Calculate average
  48. 	average = Letters / words;
  49.  
  50. 	//Display number of words and average
  51. 	cout << "The number of words in this string is: " << words << endl;
  52. 	cout << fixed << setprecision(2);
  53. 	cout << "The average number of letters is: " << average;
  54. 	return 0;
  55. }
  56.  
  57. 	//Define function CountWords
  58. 	int CountWords(char *string)
  59. 	{
  60. 		int count = 0;	// Counter for loop
  61. 		int length;	// Holds the number of words in the string
  62.  
  63. 		while(string[count] != '\0')
  64. 		{
  65. 			if(string[count] == ' ')
  66. 			{
  67. 				length++;
  68. 			}
  69. 			count++;
  70. 		}
  71. 		return length;
  72. 	}
  73.  
  74. 	//	Define function CalcAverage
  75. 	int CountLetters(char *string2)
  76. 	{
  77. 		int letters = 0;
  78. 		int count = 0;
  79.  
  80. 	while(string2[count] != '\0')
  81. 		{
  82. 		if(string2[count] != ' ')
  83. 		{
  84. 			letters++;
  85. 		}
  86. 			else if(string2[count] == ' ')
  87. 		{
  88. 			letters--;		
  89. 		}
  90. 		count++;
  91. 		}
  92. 		return letters;
  93. 	}
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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Enter a string of characters.
The number of words in this string is: 1
The average number of letters is: 0.00
https://ideone.com/h3yZAO
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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