Preview:
#include <stdio.h>
void printpattern(int n);

int main() {
    int n = 4;
    
    printpattern(n);
    
    
	//code
	return 0;
}
void printpattern(int n){
    int i;
    if(n == 1){
        printf("*\n");
        return;
    }
    printpattern(n-1);
    for(i=0;i<2*n-1;i++){
        printf("*");
        
    }
    printf("\n");
}
downloadDownload PNG downloadDownload JPEG downloadDownload SVG

Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter