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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main()
  5. {
  6.     double x,y; //описание переменных для хранения входных данных
  7.     scanf("%lf%lf",&x,&y); //ввод координат точки
  8.     if((y>=1) || (x>=-1 && x<=1 && y>=fabs(x))) printf("Belongs"); //проверка
  9.         else printf("Doesn't belong");
  10.     return 0;
  11. }
Success #stdin #stdout 0s 3348KB
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stdin
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-0.8 0.9
stdout
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Belongs
https://ideone.com/eGjjxC
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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