1 #include <stdio.h> 2 func1(void)3 void func1(void) 4 { 5 printf("Hello from func1!\n"); 6 } 7 func2(void)8 void func2(void) 9 { 10 printf("Hello from func2!\n"); 11 } 12 func3(void)13 void func3(void) 14 { 15 printf("Hello from func3!\n"); 16 } 17