Some more source
code with arrays –
Finding the Second
largest Number in an Array.
#include <stdio.h>
#include <conio.h>
//Second Largest No.
void main()
{
int
Arr[20],i,n,max,smax;
clrscr();
printf("\n\tEnter
Array Size below 20 : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("\n\tEnter
Array Element at [%d] : ",i);
scanf("%d",&Arr[i]);
}
smax=max=Arr[0];
printf("\n\tNumbers
in Array : \n");
for(i=0;i<n;i++)
{
printf("\n\t\t%d",Arr[i]);
if(Arr[i]>max)
{
max=Arr[i];
}
if(Arr[i]<smax)
{
smax=Arr[i];
}
}
for(i=0;i<n;i++)
{
if(Arr[i]>smax
&& Arr[i]<max)
{
smax=Arr[i];
}
}
printf("\n\tSecond
Largest No. is : %d",smax);
getch();
}
Remove Duplicate values from
Array.
#include <stdio.h>
#include <conio.h>
//Remove Duplicate Element
void main()
{
int
Arr[20],n,i,j,k,flag;
clrscr();
printf("\n\tEnter
Size (below 20) : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("\tEnter element
at [%d] : ",i);
scanf("%d",&Arr[i]);
}
printf("\n\tElements
in Array : ");
for(i=0;i<n;i++)
{
printf("%d
",Arr[i]);
}
for(i=0;i<n;i++)
{
flag=0;
for(j=i+1;j<n;j++)
{
if(Arr[i]==Arr[j])
{
flag=1;
break;
}
}
if(flag==1)
{
for(k=j;k<n-1;k++)
{
Arr[k]=Arr[k+1];
}
n--;
}
}
printf("\n\tAfter
Removing Duplicate : ");
for(i=0;i<n;i++)
{
printf("%d
",Arr[i]);
}
getch();
}
Array Operation : Add, Remove,
Append, Sort and Search in an Array
#include <conio.h>
#include<stdlib.h>
//Add, Remove, Append, Sort and Search in an Array
int arr[20],c;
void view(int);
int append(int);
int del(int);
int inst(int);
void sort(int);
void ser(int);
int main()
{
int ch=0,n,i=0;char x;
c=0;
printf("\n\tHow many no. (Below 20)? : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("\tEnter a no at [%d]:",i);
scanf("%d",&arr[i]);
}
c=n;
while(ch<6)
{
printf("\n\t1. Append");
printf("\n\t2. Delete");
printf("\n\t3. Insret");
printf("\n\t4. View");
printf("\n\t5. Sort");
printf("\n\t6. Search");
printf("\n\t7. Exit\n");
printf("\n\tEnter Your Choice : ");
scanf("%d",&ch);
switch(ch)
{
case 1: c=append(c);break;
case 2: c=del(c);break;
case 3: c=inst(c);break;
case 4: view(c);break;
case 5: sort(c);break;
case 6: ser(c);break;
case 7: printf("\n\n\tQuit...");exit(0);
default: printf("\n\tInvalid Option ");
}
}
getch();
return 0;
}
void view(int c)
{
int i=0;
printf("\n\tNos. is in Array : ");
for(i=0;i<c;i++)
{
printf("%d ",arr[i]);
}
getch();
}
int append(int c)
{
if(c>=20)
{
printf("\n\t\tArray is Full ");
}
else
{
printf("\n\tEnter No. to Add at the End : ");
scanf("%d",&arr[c]);
c++;
}
return c;
}
int del(int c)
{
int p,i;
printf("\n\tEnter Position : ");
scanf("%d",&p);
for(i=p;i<c;i++)
{
arr[i]=arr[i+1];
}
c--;
return c;
}
int inst(int c)
{
int p,i;
if(c>=20)
{
printf("\n\tArray is Full ");
}
else
{
printf("\n\t Enter Position : ");
scanf("%d",&p);
for(i=c;i>=p;i--)
{
arr[i+1]=arr[i];
}
printf("\n\tEnter the no: ");
scanf("%d",&arr[p]);
c++;
}
return c;
}
void sort(int c)
{
int i,j,temp;
for(i=0;i<c-1;i++)
{
for(j=i+1;j<c;j++)
{
if(arr[i]>arr[j])
{
temp=arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
getch();
}
void ser(int c)
{
int i,val,f,p;
printf("\n\tEnter the value to be searched : ");
scanf("%d",&val);
sort(c);
f=0;
for(i=0;i<c;i++)
{
if(arr[i]==val)
{
p=i+1;
f++;
}
}
if(f==0)
{
printf("\n\t %d is Not Found!",val);
}
else
{
printf("\n\t%d is Found! it is in %d Position ",val,p);
}
getch();
}
LCM of given numbers from an
array
#include <stdio.h>
#include <conio.h>
//LCM of Array Elements
void main()
{
int
Nm,i,flag=0,j,n;
long
int prod=1;
int
Num[20];
clrscr();
printf("\n\tEnter
Size of Array : ");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("\n\tEnter
Element at [%d] :",i);
scanf("%d",&Num[i]);
}
Nm=Num[0];
printf("\n\tNumbers in
Array :\n\t");
for(i=0;i<n;i++)
{
printf("%d
",Num[i]);
if(Num[i]>Nm)
{
Nm=Num[i];
}
prod=prod*Num[i];
}
for(i=Nm;i<=prod;i++)
{
flag=0;
for(j=0;j<n;j++)
{
if(i%Num[j]!=0)
{
flag=1;
break;
}
}
if(flag==0)
{
break;
}
}
printf("\n\tLCM
= %d",i);
getch();
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