Write a "C" program to generate the pattern using string function ?

 

To generate the pattern using string function

String : jack

Pattern
j
ja
jac
jack

#include<stdio.h>
#include<conio.h>
#include<string.h>
void main()
{
char str[50];
int i,j,n;
clrscr();
printf("\nEnter the string :");
gets(str);
/*calculate the length of the  string */
n=strlen(str)-1;
for(i=1;i<=n;i++)
{
for(j=0;j<i;j++)
{
printf("%c",str[j]);
}
printf("\n");
}
getch();
 }

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