//gcc 5.4.0
#include <stdio.h>
int main(void)
{
printf("Hello, world!\n");
return 0;
}https://play.google.com/store/apps/details?id=vrpatel0018.cprograms
//pattern1
#include<stdio.h>
int main()
int i,j;
for(i=1;i<=5;i++){
for(j=1;j<=5;j++){
printf("*");//put any character
}
printf("\n");
https://play.google.com/store/apps/details?id=vrpatel0018.cprograms
gcc