char s[5000]; int n = 0, i = 0; fputs("単語を入力せよ:", stdout); scanf("%4999s", s); for (i = 0; s[i]; ++i) { if (s[i] == 'e') n++; } printf("単語にeが%dこ含まれます。\n", n); printf("単語のeを抜かすと"); for (i = 0; s[i]; ++i) { if (s[i] != 'e') putchar(s[i]); } putchar('\n'); }