就是运行后例如把comp变成computer
```c
#include <stdio.h>
#define MAX_SIZE 1002
void interject(char *str, char *interject, int index) {
}
int main(void) {
char str1[MAX_SIZE] = "Comp Science";
printf("%s -> ", str1);
interject(str1, "uter", 4);
printf("%s\n", str1);
char str2[MAX_SIZE] = "Beginnings";
printf("%s -> ", str2);
interject(str2, "New ", 0);
printf("%s\n", str2);
char str3[MAX_SIZE] = "The End!";
printf("%s -> ", str3);
interject(str3, " Is Nigh", 7);
printf("%s\n", str3);
char str4[MAX_SIZE] = "UNSW Other Unis";
printf("%s -> ", str4);
interject(str4, "> ", 5);
printf("%s\n", str4);
return 0;
}
```