Insert an element in array
Write a C program to insert an element in an array at the specified position. C program to insert an element in the array at a given position. The program should also print an error message if the insert position is invalid. Logic to insert an element in the array at a given position in the C program. If MAX_SIZE < new size then overflow condition!
for(i=size-1; i>=position-1; i--) {
array[i+1] = array[i];
}
array[position-1] = value;
size++;
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58 | #include<stdio.h>
#define MAX_SIZE 10
int main() {
int array[MAX_SIZE],size,i,position,value,Length =0;
/* Input size of the array */
printf("Enter the size of the array:\n");
scanf("%d",&size);
/* if MAX_SIZE < new size then overflow condition!*/
Length = sizeof(array)/sizeof(array[0]);
if(Length < size) {
printf("overflow condition! Please enter size between 1 to %d", Length);
} else {
/* Input elements in array */
printf("Enter %d elements:\n",size);
for(i=0; i<size; i++) {
scanf("%d",&array[i]);
}
/* Input position to insert */
printf("Enter the element position:\n");
scanf("%d",&position);
/* If position of element is not valid */
if(position>size ||position <=0) {
printf("Please enter position between 1 to %d", size);
return;
} else {
/* Input value to insert */
printf("Enter the value:\n");
scanf("%d",&value);
for(i=size-1; i>=position-1; i--) {
array[i+1] = array[i];
}
/* Insert new element at given position and increment size */
array[position-1] = value;
size++;
/* Print array after insert */
printf("Array elements after insertion :\n");
for(i=0; i<size; i++) {
printf("%d\n",array[i]);
}
}
}
return 0;
}
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Output
Enter the size of the array:
5
Enter 5 elements:
10 20 30 40 50
Enter the element position:
3
Enter the value:
100
Array elements after insertion :
10
20
100
30
40
50
Enter the size of the array:
15
overflow condition! Please enter size between 1 to 10
Insert a new element at the beginning:
for(i=size-1; i>=0; i--) {
array[i+1] = array[i];
}
array[0] = value;
size++; 1
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37 | #include<stdio.h>
#define MAX_SIZE 10
int main() {
int array[MAX_SIZE],size,i,value;
/* Input size of the array */
printf("Enter the size of the array:\n");
scanf("%d",&size);
/* Input elements in array */
printf("Enter %d elements:\n",size);
for(i=0; i<size; i++) {
scanf("%d",&array[i]);
}
/* Input value to insert at the beginning*/
printf("Enter the value that you want to insert at the beginning:\n");
scanf("%d",&value);
for(i=size-1; i>=0; i--) {
array[i+1] = array[i];
}
/* Insert new element at the beginning */
array[0] = value;
size++;
/* Print array after insert at the beginning */
printf("\nArray elements after insertion at the beginning:\n");
for(i=0; i<size; i++) {
printf("%d ",array[i]);
}
return 0;
}
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Output
Enter the size of the array:
8
Enter 8 elements:
20 30 40 50 60 70 80 90
Enter the value that you want to insert at the beginning:
10
Array elements after insertion at the beginning:
10 20 30 40 50 60 70 80 90
Insert a new element at the ending:
array[size] = value;
size++;
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33 | #include<stdio.h>
#define MAX_SIZE 10
int main() {
int array[MAX_SIZE],size,i,value;
/* Input size of the array */
printf("Enter the size of the array:\n");
scanf("%d",&size);
/* Input elements in array */
printf("Enter %d elements:\n",size);
for(i=0; i<size; i++) {
scanf("%d",&array[i]);
}
/* Input value to insert at the ending*/
printf("Enter the value that you want to insert at the ending:\n");
scanf("%d",&value);
/* Insert new element at the ending*/
array[size] = value;
size++;
/* Print array after insert at the ending */
printf("\nArray elements after insertion at the ending:\n");
for(i=0; i<size; i++) {
printf("%d ",array[i]);
}
return 0;
}
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Output
Enter the size of the array:
8
Enter 8 elements:
10 20 30 40 50 60 70 80
Enter the value that you want to insert at the ending:
90
Array elements after insertion at the ending:
10 20 30 40 50 60 70 80 90
