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[백준/BOJ/C++] 16017번 Telemarketer or not? 본문

YJ/C++

[백준/BOJ/C++] 16017번 Telemarketer or not?

Team DAON 2021. 11. 1. 16:29

[문제]

Here at the Concerned Citizens of Commerce (CCC), we have noted that telemarketers like to use seven-digit phone numbers where the last four digits have three properties. Looking just at the last four digits, these properties are:

  • the first of these four digits is an 8 or 9;
  • the last digit is an 8 or 9;
  • the second and third digits are the same.

For example, if the last four digits of the telephone number are 8229, 8338, or 9008, these are telemarketer numbers.

Write a program to decide if a telephone number is a telemarketer number or not, based on the last four digits. If the number is not a telemarketer number, we should answer the phone, and otherwise, we should ignore it.

[입력]

The input will be 4 lines where each line contains exactly one digit in the range from 0 to 9.

[출력]

Output either ignore if the number matches the pattern for a telemarketer number; otherwise, output answer.

[Source Code]

#include <stdio.h>
#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
using namespace std;

int main() {
	int a, b, c, d, check = 0;
	cin >> a >> b >> c >> d;

	if(a == 8 || a == 9){
		if(d == 8 || d == 9){
			if(b == c)
				check = 1;
		}
	}

	if(check == 1)
		cout << "ignore";
	else
		cout << "answer";
}

[결과 화면]