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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.   float a,b,c;
  6.  
  7.   a = 3.141592;
  8.   b = 2.0;
  9.   c = a * b *b;
  10.   printf("半径 %f の面積は %0.3f になります｡\n",b,c);
  11.   return(0);
  12. }
Success #stdin #stdout 0s 4268KB
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stdin
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Standard input is empty
stdout
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半径 2.000000 の面積は 12.566 になります｡
https://ideone.com/wcEYIL
language:
C (gcc 8.3)
created:
3 years ago
visibility:
public

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