Answer to Question #99340 in C for Noel Suarez

Question

use a one dimensional array to solve the following problem. read in 20 numbers, each of which is between 10 and 100 inclusively. as each number is read, print it only if its not a duplicate of a number already read. provide for the worst case scenario in which all 20 numbers are different . use the smallest possible array to solve this problem.

Answer 1

#include<conio.h>

#include<stdio.h>

//using namespace std;

int main()

{

int a[20],i,j,k;

//clrscr();

printf("enter 20 no. between 10 to 100\n");

for(i=0;i<20;i++)

{

scanf("%d",&a[i]);

}

for(i=19;i>=0;i--)

{for(j=(i-1);j>=0;j--)

{

if(a[i]==a[j])

{

a[j]=NULL;

k=i;}

}

a[k]=NULL;

}

for(i=0;i<20;i++)

{

if(a[i]!=NULL)

{

printf("unique no %d\n",a[i]);

}}

getch();

return 0;

}