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C Brain Teasers: Exercise Your Mind

More Math, but Fun This Time

Explore logical problem solving through engaging math puzzles in C programming. Learn to analyze code snippets and predict outputs to deepen your understanding of C syntax and flow. This lesson helps enhance your coding logic and prepares you for practical programming challenges.

We'll cover the following...

Puzzle

...
C
#include <stdio.h>
double phi(double p, int precision)
{
  while(precision)
    return( p + 1/phi(p, precision-1) );
  return(p);
}
int main()
{
  double gr;
  gr = phi(1.0, 15);
  printf("Phi is %f\n", gr);
  
  return(0);
}
...