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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.     double ko;
  6.  
  7.     printf("円周率の値はいくつですか？\n");
  8.  
  9.     ko=scanf("%lf",&ko);
  10.  
  11.     printf("円周率の値は%fです\n",ko);
  12.  
  13.     return 0;
  14. }
Success #stdin #stdout 0s 5316KB
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Standard input is empty
stdout
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円周率の値はいくつですか？
円周率の値は-1.000000です
https://ideone.com/AClBsN
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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