시간 제한메모리 제한제출정답맞힌 사람정답 비율
1 초 128 MB3681119739.271%

문제

상근이는 제1사분면에 아래와 같은 패턴을 그리고 있다.

직사각형이 주어졌을 때, 직사각형에 포함되는 어두운 정사각형의 수를 구하는 프로그램을 작성하시오.

입력

첫째 줄에 직사각형의 왼쪽 아래 꼭짓점 좌표(X1, Y1)와 오른쪽 위 좌표(X2, Y2)가 주어진다. (0  ≤ X1 < X2 ≤ 1,000,000, 0 ≤ Y1 < Y2 ≤ 1,000,000)

출력

입력으로 주어진 직사각형에 포함된 어두운 정사각형의 수를 출력한다.

예제 입력 1

2 3 7 6

예제 출력 1

8

예제 입력 2

0 4 2 104

예제 출력 2

100

예제 입력 3

4 1 7 50

예제 출력 3

72
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출처

Olympiad > Croatian Highschool Competitions in Informatics > 2006 > National Competition #1 - Seniors 1번

  • 문제를 번역한 사람: baekjoon
  • 문제의 오타를 찾은 사람: jwvg0425