deletions | additions       diff --git a/approach.tex b/approach.tex  index 76e8773..ce5af86 100644  --- a/approach.tex  +++ b/approach.tex 
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int fac(int n) {  int i = 2, f = 1;  while (i<=n) {  if (osr_cond){ fac_osr(n,i,f);  return f; } fac_osr(n,i,f);  f *= i++;   } return f;  } 
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