C/C++の宿題を片付けます 87代目

>>683 ただのdigit*ではなくdigit digit*なので、「1回以上の繰り返し」になると
おもうよ
>>684 俺は別に全然上手くなんかないよ
>>681
#include <stdio.h>
char *s[] = {
    "Good night", "Good night", "Good night", "Good night",
    "Good morning", "Good morning", "Good morning", "Good morning",
    "Good morning", "Good morning", "Good morning", "Good morning",
    "Good afternoon", "Good afternoon", "Good afternoon", "Good afternoon",
    "Good afternoon", "Good evening", "Good evening", "Good evening",
    "Good evening", "Good Night", "Good Night", "Good Night",
};
char *hello(int h) { return s[h]; }
int main(void) {
    int n;
    while (scanf("%d", &n) == 1 && n >= 0 && n < 24)
        puts(hello(n));
    return 0;
}