Program that displays butterfly pattern.
Solution in C PYTHON
#include<stdio.h>
int main() {
int n,i,j;
scanf("%d",&n);
for(i=1;i<=n;i++){
for(j=1;j<=i;j++)
printf("*");
for(j=1;j<=2*(n-i);j++)
printf(" ");
for(j=1;j<=i;j++)
printf("*");
printf("\n");
}
for(i=n;i>=1;i--){
for(j=1;j<=i;j++)
printf("*");
for(j=1;j<=2*(n-i);j++)
printf(" ");
for(j=1;j<=i;j++)
printf("*");
printf("\n");
}
return 0;
}
int main() {
int n,i,j;
scanf("%d",&n);
for(i=1;i<=n;i++){
for(j=1;j<=i;j++)
printf("*");
for(j=1;j<=2*(n-i);j++)
printf(" ");
for(j=1;j<=i;j++)
printf("*");
printf("\n");
}
for(i=n;i>=1;i--){
for(j=1;j<=i;j++)
printf("*");
for(j=1;j<=2*(n-i);j++)
printf(" ");
for(j=1;j<=i;j++)
printf("*");
printf("\n");
}
return 0;
}
Input
5
Output
* *
** **
*** ***
**** ****
**********
**********
**** ****
*** ***
** **
* *
5
Output
* *
** **
*** ***
**** ****
**********
**********
**** ****
*** ***
** **
* *