Array Operations - Reverse, Insert, Delete, Merge

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 //Program To Perform Array Operations 
//Downloaded from www.c4cprog.co.nr 
#include<conio.h> 
void array_reverse(int a[],int n) 
{int j,i,r[100]; 
j=n; 
for(i=0;i<n;i++,j--) 
r[i]=a[j-1]; 
printf("\n\nArray After Reversing :"); 
for(i=0;i<n;i++) 
printf("\n%d",r[i]); 
} 
void array_merge(int a[],int n) 
{ 
int i,q,j,r[100],b[100],p; 
printf("\n\nEnter Second Array Limit :"); 
scanf("%d",&q); 
printf("\n\nEnter Array B :\n"); 
for(i=0;i<q;i++) 
scanf("%d",&b[i]); 
for(j=0;j<n;j++) 
r[j]=a[j]; 
for(i=0;i<q;i++) 
{ 
r[j]=b[i]; 
j++; 
} 
printf("\n\nThe Array After Merging :"); 
for(i=0;i<n+q;i++) 
printf("\n%d",r[i]); 
} 
void array_insert(int a[],int n) 
{ 
int q,po,i,j; 
printf("\n\nEnter the Element To Be Inserted to Array A :"); 
scanf("%d",&q); 
printf("\n\nEnter the Position To Be Inserted to Array A :"); 
scanf("%d",&po); 
for(i=0;i<n;i++) 
if(i==po) 
for(j=n;j>=po;j--) 
a[j]=a[j-1]; 
a[po-1]=q; 
printf("\n\nThe Array After Inserting :"); 
for(i=0;i<=n;i++) 
printf("\n%d",a[i]); 
} 
void array_delete(int a[],int n) 
{ 
int q,j,i,k=0,c; 
printf("\n\nEnter the Element To Be Deleted From Array A :"); 
scanf("%d",&q); 
c=n; 
for(i=0;i<n;i++) 
{ 
if(a[i]==q) 
{ 
c--; 
k++; 
for(j=i;j<n-1;j++) 
a[j]=a[j+1]; 
i--; 
}} 
if(k==0) 
printf("\n\nThe Element not Found !!!"); 
if(k>0) 
{ 
printf("\n\nThe Array After Deleting :"); 
for(i=0;i<c;i++) 
printf("\n%d",a[i]); 
} 
getch(); 
} 
void main() 
{ 
int op,n,i,a[100]; 
char v; 
do{ 
clrscr(); 
printf("Enter Limit :"); 
scanf("%d",&n); 
printf("\n\nEnter Array A :\n"); 
for(i=0;i<n;i++) 
scanf("%d",&a[i]); 
printf("\n\nEnter Your Choice :\n1.Reverse\n2.Merge\n3.Insert\n4.Delete\n\nEnter :"); 
scanf("%d",&op); 
switch(op) 
{ 
case 1: 
array_reverse(a,n); 
break; 
case 2: 
array_merge(a,n); 
break; 
case 3: 
array_insert(a,n); 
break; 
case 4: 
array_delete(a,n); 
break; 
default : 
printf("\n\nWrong Choice"); 
break; 
} 
printf("\n\nPress 'e' to EXIT and any other key to continue :"); 
scanf(" %c",&v); 
}while(v!='e'); 
}