Code to count Positive, Negative and zero in an array of C

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Code to count Positive, Negative and zero in an array of C

In this article, we will discuss the concept of Code to count Positive, Negative numbers and zero in an array of C language

In this program, we are going to learn how to count the Positive numbers, Negative numbers and zeros in an array using several ways in C language.

This is done using for loop , while loop, do-while loop and function in C language

Count Positive, Negative and zero in an array of C

Count Positive, Negative and zero in an array of C using for loop

In this program, we will count positive numbers,negative numbers and zeros in an array using a for loop in C language

Program 1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,size,countPos=0, countNeg=0, countZero=0,arr[100];
    printf("Enter the array size\n");
    scanf("%d",&size);
    printf("Enter %d elements\n",size);
    for(i=0; i<size; i++){
     scanf("%d",&arr[i]);
    }
    for(i=0; i<size; i++){
     if(arr[i]<0){
        countNeg++;
     }
     else if(arr[i]>0){
        countPos++;
     }
     else{
        countZero++;
     }
    }
    printf("Positive numbers are %d\n",countPos);
    printf("Negative numbers are %d\n",countNeg);
    printf("zeros are %d",countZero);
    getch();
    return 0;
}

When the above code is executed it produces the following result

Enter the array size
10
enter 10 elements
45
0
-73
67
23
-87
-7
24
52
56

Positive numbers are 6
Negative numbers are 3
Zeros are 1

Count Positive, Negative and zero in an array of C using while loop

In this program, we will count positive numbers,negative numbers and zeros in an array using a while loop in C language

Program 2

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,size,countPos=0, countNeg=0, countZero=0,arr[100];
    printf("Enter the array size\n");
    scanf("%d",&size);
    printf("Enter %d elements\n",size);
    i=0;
    while( i<size){
     scanf("%d",&arr[i]);
      i++;
    }
    i=0;
    while( i<size){
     if(arr[i]<0){
        countNeg++;
     }
     else if(arr[i]>0){
        countPos++;
     }
     else{
        countZero++;
     }
      i++;
    }
    printf("Positive numbers are %d\n",countPos);
    printf("Negative numbers are %d\n",countNeg);
    printf("zeros are %d",countZero);
    getch();
    return 0;
}

When the above code is executed it produces the following result

Enter the array size
12
Enter 10 elements

45
-67
0
64
-54
-34
45
23
62
72
68
-65

Positive numbers are 7
Negative numbers are 4
Zeros are 1

Count Positive, Negative and zero in an array of C using do-while loop

In this program, we will count positive numbers,negative numbers and zeros in an array using a do-while loop in C language

Program 3

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,size,countPos=0, countNeg=0, countZero=0,arr[100];
    printf("Enter the array size\n");
    scanf("%d",&size);
    printf("Enter %d elements\n",size);
    i=0;
   do{
     scanf("%d",&arr[i]);
      i++;
    } while( i<size);
    i=0;
    do{
     if(arr[i]<0){
        countNeg++;
     }
     else if(arr[i]>0){
        countPos++;
     }
     else{
        countZero++;
     }
      i++;
    }while( i<size);
    printf("Positive numbers are %d\n",countPos);
    printf("Negative numbers are %d\n",countNeg);
    printf("zeros are %d",countZero);
    getch();
    return 0;
}

When the above code is executed it produces the following result

Enter the array size
8
Enter 8 elements
78
-98
0
45
67
83
29

Positive numbers are 5
Negative numbers are 2
Zeros are 1

Count Positive, Negative and zero in an array of C using function

In this program, we will count positive numbers,negative numbers and zeros in an array using a function in C language

Program 4

#include <stdio.h>
#include <stdlib.h>
int countPositive(int arr[],int size);
int countNegative(int arr[],int size);
int countZero(int arr[],int size);
int main()
{
    int size,i,arr[10];
    int posCount=0,negCount=0,zeroCount=0;
    printf("Please enter the size of an array \n");
    scanf("%d",&size);
      printf("Please enter the array elements \n");
    for(i=0; i<size; i++){
        scanf("%d",&arr[i]);
    }
    printf("Total positive numbers in this array= %d\n",countPositive(arr,size));
    printf("Total Negative numbers in this array= %d\n",countNegative(arr,size));
    printf("\nTotal zeros in this array= %d\n",countZero(arr,size));
    getch();
    return 0;
}

int countPositive(int arr[],int size){
int i, posCount=0;
printf("\nList of positive number in this array: \n");
 for(i=0; i<size; i++){
        if(arr[i]>0){
            printf("%d\n",arr[i]);
            posCount++;
        }
    }
    return posCount;

}

int countNegative(int arr[],int size){
int i, negCount=0;
printf("\nList of negative number in this array: \n");
 for(i=0; i<size; i++){
        if(arr[i]<0){
            printf("%d\n",arr[i]);
            negCount++;
        }
    }
    return negCount;

}

int countZero(int arr[],int size){
int i, zeroCount=0;

 for(i=0; i<size; i++){
        if(arr[i]==0){
            zeroCount++;
        }
    }
    return zeroCount;

}

When the above code is executed it produces the following result