Happy Birthday sound in C

//Happy Birthday sound in C #include<dos.h> #include<stdio.h> int main(void) { float g3=195,a3=220,c4=263,b3=247,d4=293,g4=393,e4=330,f4=351; sound(g3); delay(100); nosound(); sound(g3); delay(500); nosound(); sound(a3); delay(500); nosound(); sound(g3); delay(500); nosound(); sound(c4); delay(500); nosound(); sound(b3); delay(1000); nosound(); //delay(500); sound(g3); delay(100); nosound(); sound(g3); delay(500); nosound(); sound(a3); delay(500); nosound(); sound(g3); delay(500); nosound(); sound(d4); delay(500); nosound(); sound(c4); delay(1000); nosound(); sound(g3); delay(100); nosound(); sound(g3); delay(500); nosound(); sound(g4); delay(500); nosound(); sound(e4); delay(500); nosound(); sound(c4); delay(500); nosound(); sound(a3); delay(1000); nosound(); sound(g4); delay(100); nosound(); sound(g4); delay(500); nosound(); sound(f4); delay(500); nosound(); sound(c4); delay(500); nosound(); sound(d4); delay(500); nosound(); sound(c4); delay(500); nosound(); return 0; }