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  1. #include<stdio.h>
  2. int main()
  3. {
  4.   int a,b,c,count=1;
  5.   scanf("%d%d%d",&a,&b,&c);
  6.   while(a!=-1 && b!=-1 && c!=-1)
  7.   {
  8.   	float avg=(a+b+c)/3.0;
  9.     if(count==1)
  10.       scanf("%d",&a);
  11.     if(count==2)
  12.       scanf("%d",&b);
  13.     if(count==3)
  14.       scanf("%d",&c);
  15.     count++;
  16.     if(count==4)
  17.       count=1;
  18.     if(a!=-1 && b!=-1 && c!=-1)
  19.     printf("%0.1f ",avg);
  20.     else
  21.     printf("%0.1f",avg);
  22.   }
  23.   return 0;
  24. }
Success #stdin #stdout 0s 4424KB
comments (?)
stdin
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1 1 2 3 5 8 13 21 -1
stdout
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1.3 2.0 3.3 5.3 8.7 14.0
https://ideone.com/ZCXiQs
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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