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  1. #include <stdio.h>
  2. #include <ctype.h>  // For character type functions
  3. #include <cstring>  // For strlen function
  4.  
  5. // Define the structure to hold string statistics
  6. struct stringStats {
  7.     int stringLength;
  8.     int upperCaseCount;
  9.     int lowerCaseCount;
  10.     int digitCount;
  11.     int spaceCount;
  12.     int nonAlphanumericCount;
  13. };
  14.  
  15. // Function prototype
  16. struct stringStats getStringStats(const char *theString);
  17.  
  18. int main() {
  19.     char inputString[100];  // Input string buffer
  20.  
  21.     printf("Enter a string: ");
  22.     if (fgets(inputString, sizeof(inputString), stdin) == NULL) {
  23.         printf("Error reading input.\n");
  24.         return 1;  // Return an error code if fgets fails
  25.     }
  26.  
  27.     // Handling the newline character fgets reads
  28.     size_t ln = strlen(inputString) - 1;
  29.     if (inputString[ln] == '\n')
  30.         inputString[ln] = '\0';
  31.  
  32.     // Get statistics of the string
  33.     struct stringStats stats = getStringStats(inputString);
  34.  
  35.     // Print the statistics
  36.     printf("String Length: %d\n", stats.stringLength);
  37.     printf("Upper Case Letters: %d\n", stats.upperCaseCount);
  38.     printf("Lower Case Letters: %d\n", stats.lowerCaseCount);
  39.     printf("Digits: %d\n", stats.digitCount);
  40.     printf("Blank Spaces: %d\n", stats.spaceCount);
  41.     printf("Non-Alphanumeric Characters: %d\n", stats.nonAlphanumericCount);
  42.  
  43.     return 0;
  44. }
  45.  
  46. // Function to analyze the string and return its statistics
  47. struct stringStats getStringStats(const char *theString) {
  48.     struct stringStats stats = {0};  // Initialize all fields to zero
  49.  
  50.     const char *p = theString;  // Pointer to iterate through the string
  51.  
  52.     while (*p) {  // Continue until the end of the string
  53.         stats.stringLength++;  // Increment string length for each character
  54.  
  55.         if (isupper(*p)) {
  56.             stats.upperCaseCount++;
  57.         } else if (islower(*p)) {
  58.             stats.lowerCaseCount++;
  59.         } else if (isdigit(*p)) {
  60.             stats.digitCount++;
  61.         } else if (isspace(*p)) {
  62.             stats.spaceCount++;
  63.         } else {
  64.             stats.nonAlphanumericCount++;
  65.         }
  66.  
  67.         p++;  // Move to the next character
  68.     }
  69.  
  70.     return stats;
  71. }
Success #stdin #stdout 0.01s 5292KB
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stdin
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Hello World! 1234 Testing, testing...!
stdout
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Enter a string: String Length: 38
Upper Case Letters: 3
Lower Case Letters: 21
Digits: 4
Blank Spaces: 4
Non-Alphanumeric Characters: 6
https://ideone.com/BluKQo
language:
C++14 (gcc 8.3)
created:
13 days ago
visibility:
public

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