foo.c: In function 'main':
foo.c:10:42: warning: unused variable 'new_g' [-Wunused-variable]
 int new_p = h, new_h = p + g, new_a = g, new_g = a + h;
                                          ^~~~~
foo.c:10:31: warning: unused variable 'new_a' [-Wunused-variable]
 int new_p = h, new_h = p + g, new_a = g, new_g = a + h;
                               ^~~~~
foo.c:10:16: warning: unused variable 'new_h' [-Wunused-variable]
 int new_p = h, new_h = p + g, new_a = g, new_g = a + h;
                ^~~~~
foo.c:10:5: warning: unused variable 'new_p' [-Wunused-variable]
 int new_p = h, new_h = p + g, new_a = g, new_g = a + h;
     ^~~~~

自豪的采用jd5进行评测(github.com/masnn/jd5)