Thread: inserting an element into an array

Code:

#include<stdio.h>
 #include<conio.h>
 void main()
 {
 int a[11],i,j,k,ch,sh,e;
 clrscr();
 printf("enter array elements:");
 for(i=0;i<10;i++)
 scanf("%d",&a[i]);
 printf("enter choice\n1.in between insertion\n2.insertion in the beginning\n3.insertion at the end");
 scanf("%d",&ch);
 switch(ch)
 {case1:
 printf("enter the element:");
 scanf("%d",&e);
 printf("enter the element after which the number has to be inserted:");
 scanf("%d",&sh);
 for(i=0;i<10;i++)
 {
 if(a[i]==sh)//finding the element
 break;
 }
 for(k=9;k>i;k--)
 a[k+1]=a[k];//shifting the element
 a[i+1]=e;
 break;
 case2:
 printf("enter the element:");
 scanf("%d",&e);
 for(k=9;k>=0;k--)
 a[k+1]=a[k];
 a[0]=e;
 break;
 case3:
 printf("enter the element:");
 scanf("%d",&e);
 a[10]=e;
 }
 printf("\n");
 for(i=0;i<11;i++)//display the result
 printf("%d",a[i]);
 getch();
 }

the above program is for INSERTING AN ELEMENT INTO AN ARRAY.but when i run this code it gives me very weird output....it doesn't print the "enter the element after which the number has to be inserted "line and also when i enter choce 1.that means in
between insertion//
the output is like:
enter the array:
1 2 3 4 5 6 7 8 9 10
enter the choice:1.in between 2.in the beginning 3.at the end.
when i enter choice 1.in bwetween it prints..enter the element:suppose i enter 30
then it immediately prints
array after insertion is:1 2 3 4 5 6 7 8 9 10 30 52 33 30
and the same output for in beginning and at the end....what do i do now?where is the error?i don't know plz help me out ??/

could any 1 help me out here??? with my program..........?plz tell me the errors in my program
????????

whar the changes that i can make in my program in order to run it correctly??????with all the 3 choices..,..???

Originally Posted by galmca

could any 1 help me out here??? with my program..........?plz tell me the errors in my program
????????

whar the changes that i can make in my program in order to run it correctly??????with all the 3 choices..,..???

salem said it best:

Originally Posted by salem

You might consider the delights of

int main

meaningful variable names

and some indentation in your code.

what's wrong with my code here?can any 1 plz tell me that?

galmca, you may want to consider signing up for the Obfuscated Code Contest Here!
j/k j/k :P

1. conio.h is not very portable, so take that out along with clrscr().
2. case1: is written wrong, it should be: case 1: with a space.
3. getch(); is not very portable, you will probably want to replace that with getchar(); that is located I believe in stdio.h.
4. Change void main() to int main(void) for issues concerning whacko returns to the system and main() meaning infinite parameters and main(void) meaning 0 parameters.
5. Make sure you return 0; at the end of your int main() function for certain reasons (like int main() returning some whacko #).
6. You can change int a[11] to int a[10] because I believe you don't use the 11th index of the integer array.
7. Instead of scanf(), since you're getting a character from the user, just use getchar();
8. I changed statements like: printf("enter the element:"); to puts("Enter the Element: "); just because of my preference, you had no problems there.
9. I changed the a variable to cElements to better distinguish the variable.
10. Sometimes I wasn't totally sure what the for loop was looping :(, so I just added brackets the best I could.
11. I probably screwed it all up again :(

Here's the fixed code: *

Code:

#include <stdio.h>
#include <ctype.h>

// Used for flushing newlines after input
#define FLUSHINPUT while( (fc=getchar()) != EOF && fc != '\n');

int main(void) {
	int cElements[10],i,j,k,sh,e;
	int c;	/* Temperary character holder used by getchar(); */
	int fc;	/* Temperary character used for flushing */
	puts("Enter 10 Numbers:");

	for(i=0;i<10;i++) {
		c = getchar();
		if(isdigit(c))
			cElements[i] = c;
		else
			exit(1);

		/* Flush out the newlines */
		FLUSHINPUT
	}

	printf("Enter choice\n1. In between insertion\n2. Insertion in the beginning\n3. Insertion at the end\n");
	c = getchar();
	if(!isdigit(c))
		exit(1);

	/* Flush out the newlines */
	FLUSHINPUT


	switch(c) {
		case '1':
			puts("Enter the Element: ");
			e = getchar();
			if(!isdigit(e))
				exit(1);
			FLUSHINPUT

			puts("Enter the element after which the number has to be inserted:\n");
			sh = getchar();	/* Only 0-9 works for this version lol :( */
			FLUSHINPUT
			for(i=0; i<10; i++) {
				if(cElements[i] == sh)	//finding the element
					break;
			}
			for(k=9;k>i;k--)
				cElements[k+1]=cElements[k];//shifting the element

			cElements[i+1]=e;
			break;
		case '2':
			puts("Enter the Element: ");
			e = getchar();
			if(!isdigit(e))
				exit(1);
			FLUSHINPUT

			for(k=9;k>=0;k--)
				cElements[k+1] = cElements[k];

			cElements[0] = e;
			break;
		case '3':
			puts("Enter the Element: ");
			e = getchar();
			if(!isdigit(e))
				exit(1);
			FLUSHINPUT

			cElements[10]=e;
		default:
			puts("Choice Error");
			exit(1);
	}

	printf("\n");
	for(i=0; i<10; i++)	/* Display Result */
		printf("%d\n", cElements[i]);
	getchar();
	return 0;
}

* Maybe...

galmca, Go To This Website , and then go to doctors and get fixed. Then come back. lol :P I feel I'm being mean :(

Code:

#include <stdio.h>
#define SIZE 10

int main()
{
int a[ SIZE ];
int i,n,pass,hold;
printf("enter the number of elements in an array:");
scanf("%d",&n);

printf( "Data items in original order\n" );

for ( i = 0; i <= SIZE - 1; i++ )
printf( "%4d", a[ i ] );

for ( pass = 1; pass <= SIZE - 1; pass++ )

for( i = 0; i <= SIZE - 2; i++ )
printf( "%d %d ", a[ i ], hold );
if ( a[ i ] > a[ i + 1 ] ) {
hold = a[ i ];
a[ i ] = a[ i + 1 ];
a[ i + 1 ] = hold;
}

printf( "\nData items in ascending order\n" );

for ( i = 0; i <= SIZE - 1; i++ )
printf( "%4d", a[ i ] );

printf( "\n" );

return 0;
}

the above program is for bubble sorting....
but it is not running properly....when i enter number of elements in an array:7
and enter array elements:5 10 15 14 16 18 20 ....it prints...some weird output of array in ascending order :1280315..1280313..etc..and then prints data items in ascending order after bubble sorting is:5 10 15 16 18 20...
whats wrong with the code?plz make some necessatu changes and plz explain th code if u can to make the program run successfully...im really confused now...????could u plz explain the functioning of for loops... here,,,???im confused now how is that working ..why have we taken i=size -2?in the for loop?plz explain the for loops ?
and plz make my program run correctly....its not showing any error but not running properly......

Sponsored Links

AT LEAST indent your code.

I'd almost try to pick them apart, since he's learned to use code tags, however I'm hesitant to do somebody's homework assignment for them.

ok ok ok ....