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  1. #include <stdio.h>
  2.  
  3. // Function prototype
  4. char getGrade(int score);
  5.  
  6. // Function definition
  7. /**
  8.  * Function Name: getGrade
  9.  * 
  10.  * Function Block:
  11.  * Determines the letter grade based on the given score.
  12.  * 
  13.  * @param score The test score (0-100).
  14.  * @return The letter grade corresponding to the score, or 'I' for invalid scores.
  15.  */
  16. char getGrade(int score) {
  17.     if (score < 0 || score > 100) {
  18.         return 'I'; // Invalid score
  19.     } else if (score >= 90) {
  20.         return 'A';
  21.     } else if (score >= 80) {
  22.         return 'B';
  23.     } else if (score >= 70) {
  24.         return 'C';
  25.     } else if (score >= 60) {
  26.         return 'D';
  27.     } else {
  28.         return 'F';
  29.     }
  30. }
  31.  
  32. int main() {
  33.     int score;
  34.  
  35.     // Test cases
  36.     score = 95;
  37.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: A
  38.  
  39.     score = 85;
  40.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: B
  41.  
  42.     score = 75;
  43.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: C
  44.  
  45.     score = 65;
  46.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: D
  47.  
  48.     score = 55;
  49.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: F
  50.  
  51.     score = -5;
  52.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: I
  53.  
  54.     score = 105;
  55.     printf("Score: %d, Grade: %c\n", score, getGrade(score)); // Expected output: I
  56.  
  57.     return 0;
  58. }
Success #stdin #stdout 0s 5280KB
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stdin
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Standard input is empty
stdout
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Score: 95, Grade: A
Score: 85, Grade: B
Score: 75, Grade: C
Score: 65, Grade: D
Score: 55, Grade: F
Score: -5, Grade: I
Score: 105, Grade: I
https://ideone.com/RbkSDj
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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