C Exercises: Takes some integer values from the user and print a histogram.

C Basic Declarations and Expressions: Exercise-99 with Solution

Create a histogram for input integer values

Write a C program that takes some integer values from the user and prints a histogram.

Sample Solution:

C Code:

#include <stdio.h>

// Function to print a histogram
void print_Histogram ( int *hist, int n );

int main() {
   int i, j;
   int inputValue, hist_value=0;
   
   // Prompt the user to input the number of histogram bars (Maximum 10)
   printf("Input number of histogram bar (Maximum 10): \n");  
   scanf("%d", &inputValue);
   int hist[inputValue];
   if (inputValue<=10)
   {    
    // Prompt the user to input values for the histogram bars
    printf("Input the values between 0 and 10 (separated by space): \n");
    for (i = 0; i < inputValue; ++i) {
      scanf("%d", &hist_value);     
      // Check if the input value is within the valid range (1 to 10)
      if (hist_value>=1 && hist_value<=10)
	   hist[i] = hist_value;
	   hist_value=0;
     }

    int results[10] = {0};
    // Count the occurrences of each value in the histogram
    for(j = 0; j < inputValue; j++) {
         if ( hist[j] == i){
            results[i]++;
         }
    }

    printf("\n");
    // Print the histogram
    print_Histogram(hist, inputValue);
   }
    return 0;
}

// Function to print the histogram
void print_Histogram(int *hist, int n) {
      printf("\nHistogram:\n");
	  int i, j;
      // Loop through the histogram bars and print '#' for each occurrence
      for (i = 0; i < n; i++) {
      for ( j = 0; j < hist[i]; ++j) {
      printf("#");
      }
      printf("\n");
   }
}

Sample Output:

Input number of histogram bar (Maximum 10):
4
Input the values between 0 and 10 (separated by space):
9
7
4
3


Histogram:
#########
#######
####
###

Flowchart:

C programming Code Editor:

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