C Program to Print All Negative Numbers of an Array

February 14, 2024February 13, 2024 by veer

Write a C program to print all negative numbers of an array.
How to print all negative elements of an integer array in C.

Required Knowledge

C printf and scanf functions
For loop in C
Arrays in C

Algorithm to print negative numbers of an array
Let inputArray is an integer array having N elements.

Using a for loop, traverse inputArray from index 0 to N-1.
For every element inputArray[i], check whether it is negative number or not(inputArray[i] < 0) and print it accordingly.

C program to print all negative elements of an array

#include <stdio.h>
#include <conio.h>
  
int main(){
    int inputArray[100], elementCount, counter;
      
    printf("Enter Number of Elements in Array\n");
    scanf("%d", &elementCount);
    printf("Enter %d numbers \n", elementCount);
     
    /* Read array elements */
    for(counter = 0; counter < elementCount; counter++){
        scanf("%d", &inputArray[counter]);
    }
        
    /* Iterate form index 0 to elementCount-1 and 
       check for negative numbers */
    printf("Negative Elements in Array\n");
    for(counter = 0; counter < elementCount; counter++){
        if(inputArray[counter] < 0) {
            printf("%d ", inputArray[counter]);
        }
    }
          
    getch();
    return 0;
}

Output

Enter Number of Elements in Array
8
Enter 8 numbers
2 -4 9 10 0 -5 -1 1
Negative Elements in Array
-4 -5 -1

Related