Define function and use it: square


#include <stdio.h>

int sqr(int x);

int main(void)
{
  int t=10;

  printf("%d %d", sqr(t), t);

  return 0;
}

int sqr(int x)
{
  x = x * x;
  return( x );
}

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Define function and use it: square : Function « Function « C / ANSI-C

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