Question

How to count array elements with values in a given range with C++

Answer 1

#include <iostream>

int countValuesInRange(int arr[], int size, int from, int to) {
    int count = 0;
    for (int i = 0; i < size; i++) {
        if (arr[i] >= from && arr[i] <= to)
            count++;
    }
    return count;
}
  
int main()
{
    int arr[] = { 3, 6, 0, 17, 9, 1, 8, 7, 4, 10, 18, 11, 20, 30 };
    int size = sizeof(arr) / sizeof(arr[0]);
    int from = 5, to = 12;
     
    std::cout << countValuesInRange(arr, size, from, to);
 
    return 0;
}
 
 
 
 
    
/*
run:
    
6
    
*/

 

70+ SQL courses for beginners and professionals