Ответы на вопрос:
C++ #include < iostream> using namespace std; int main() { int n = 0; cout < < "enter num: "; cin > > n; if (n > = 100 & & n < = 999) { int s = (n / 100) + ((n / 10) % 10) + (n % 10); if (s % 3 == 0) { cout < < "num multiple 3" < < endl; } else { cout < < "num not multiple 3" < < endl; } if (s % 5 == 0) { cout < < "num multiple 5" < < endl; } else { cout < < "num not multiple 5" < < endl; } } else { cout < < "error! " < < endl; } return 0; }
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