시간 제한메모리 제한제출정답맞힌 사람정답 비율
1 초 128 MB45482957273668.026%

문제

덧셈, 뺄셈, 곱셈, 나눗셈을 할 수 있는 계산기 프로그램을 만드시오.

입력

입력의 각 줄에는 숫자와 +, -, *, /, =중 하나가 교대로 주어진다. 첫 번째 줄은 수이다. 연산자의 우선 순위는 생각하지 않으며, 입력 순서대로 계산을 하고, =가 주어지면, 그때까지의 결과를 출력한다. 주어지는 수는 108 이하의 양의 정수이다. 계산 중 결과는 0 또는 음수가 될 수 있지만, -108 ~ 108 범위를 넘지는 않는다. 또, 나눗셈에서 소수점은 버린다. 따라서, 100/3*3 = 99이다.

피제수가 음수일 때 나눗셈을 하는 경우는 입력으로 주어지지 않는다.

출력

첫째 줄에 계산 결과를 출력한다.

예제 입력 1

1
+
1
=

예제 출력 1

2

예제 입력 2

10
-
21
*
5
=

예제 출력 2

-55

예제 입력 3

100
/
3
*
3
=

예제 출력 3

99
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출처

Olympiad > Japanese Olympiad in Informatics > Japanese Olympiad in Informatics Qualification Round > JOI 2005/2006 모의고사 2 2번