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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. float w,r;
  5. float g = 9.81;
  6. w = 6.28*getchar()/3600;
  7. r = g/(w*w);
  8. printf("r = %6.5f\n", r);
  9. return 0;
  10. }
  11.  
Success #stdin #stdout 0s 4700KB
stdin
1
stdout
r = 1342.64929