Practical

#include <stdio.h>


int is123Array(int array[], int size) {
    int mismatch = 0, result = 0, value, i;

    for (i = 0, value = 1; i < size, value <= 3; i++, value++) {
        if (array[i] != value) {
            mismatch++;
        }
    }

    if (mismatch > 0) {
        result = 0;
    } else {
        result = 1;
    }
    return 0;
}

int main() {
    int i, size;

    printf("Enter the size of array: ");
    scanf("%d", &size);

    int array[size];

    printf("\nEnter array values\n");
    for (i = 0; i < size; i++) {
        printf("%d. array element: ", i+1);
        scanf("%d", &array[i]);
    }

    int result = is123Array(array, size;


    return 0;
}