Set containment.c

// setContainment.c
// Program to check if a set is contained in another.
// This is an incomplete program given to students.
#include <stdio.h>

void scanArray(int [], int);
void printArray(int [], int);
int isSubset(int [], int, int [], int);

int main(void) {
    int arrayA[4], sizeA = 4, arrayB[7], sizeB = 7;
    
    printf("1st array:\n");
    scanArray(arrayA, sizeA);
    printf("2nd array:\n");
    scanArray(arrayB, sizeB);
    
    if (isSubset(arrayA, 4, arrayB, 7))
        printf("arrayA[0..3] is a subset of arrayB[0..6]\n");
    else
        printf("arrayA[0..3] is not a subset of arrayB[0..6]\n");
    
    if (isSubset(arrayA, 4, arrayB, 6))
        printf("arrayA[0..3] is a subset of arrayB[0..5]\n");
    else
        printf("arrayA[0..3] is not a subset of arrayB[0..5]\n");
    
    return 0;
}

// To read values into arr
void scanArray(int arr[], int size) {
    int i;
    
    printf("Enter %d values: ", size);
    for (i=0; i<size; i++) {
        scanf("%d", &arr[i]);
    }
}

// To print values of arr
void printArray(int arr[], int size)
{
    int i;
    
    // To print all values on one line
    for (i=0; i<size; i++)
        printf("%d ", arr[i]);
    
    printf("\n");
}

// This function is a stub. Complete it.
int isSubset(int arrA[], int sizeA, int arrB[], int sizeB) {
    int i,j;
    
    for(i = 0; i < sizeA; i++){   //i will become 7. Imagine i++ at the end of it.
        // printf("Value of I: %d", i);
        for(j = 0; j <sizeB; j++){
            //printf("Value of J: %d\n", j);
            if(arrA[i] == arrB[j] )
                break;}
        if(j == sizeB){ //means that it has reached the end of the arrary for j and [i] is not inside
            // printf("Value of J: %d Value of SizeB: %d\n",j,sizeB);
            return 0;
        }
        
    }
    return 1;
}