Use asytle to Format code

 astyle --style=allman --unpad-paren --pad-oper --convert-tabs --pad-header --delete-empty-lines [source_code_file] 

#source file : test.c

#include 

int main() {int i;printf("Just a test!\n");for(i=0;i<10;++i)printf("%d\n",i);}return 0;} 

#astyle --style=allman --unpad-paren --pad-oper --convert-tabs --pad-header --delete-empty-lines test.c

                 #include 

 int main() { int i; printf("Just a test!\n"); for (i = 0; i < 10; ++i)printf("%d\n", i); } return 0; }