Thread: rain

noob here.Why is it I get big number for the three %2.1fmm instead of my expected 51.4mm etc..?

Code:

double rainTotal(double rainfall[12]) 
        {
	  int i;
	  double total = rainfall[0];
	  for (i = 1 ; i < 12 ; i++)
	  {
	   total += rainfall[i];   
  	   return total;
	  }	      
         }
    double lowestMonth(double rainfall[1])
        {
	  return rainfall[1];
        }
    double highestMonth(double rainfall[9])   
        {
	  return rainfall[9];
         }
...

int main()
{
    double rainfall[12] = {'48.5' , '47.2' , '52.4' , '58.7' , '57.6' , '50.1' , '47.6' , '50.3' , '59.4' , '67.1' , '60.0' , '58.9'};
.......
	 
printf("The average monthly rainfall in Melbourne is %2.1fmm,\n" , total);
printf("The lowest rainfall of %2.1fmm falls in %s,\n" , lowest , month[1]);
printf("The highest rainfall of %2.1fmm falls in %s,\n" , highest , month[9]);
}

Originally Posted by Jasper

Code:

    double rainfall[12] = {'48.5' , '47.2' , '52.4' , '58.7' , '57.6' , '50.1' , '47.6' , '50.3' , '59.4' , '67.1' , '60.0' , '58.9'};

here you are initializing array doubles with multi-characters rather than float-pointing constants.

try something like this:

Code:

    double rainfall[12] = {48.5 , 47.2 , 52.4 , 58.7 , 57.6 , 50.1 , 47.6 , 50.3 , 59.4 , 67.1 , 60.0 , 58.9};

good point is to use -Wall -W options by compilation.

Thkx. now its better. but why the num is not sum of my array elements? error wif my function?

Originally Posted by Jasper

noob here.Why is it I get big number for the three %2.1fmm instead of my expected 51.4mm etc..?

You're using the wrong syntax. Take a look at this example:

Code:

double lowestMonth( double rainfall[ ], size_t array_length )
{
    size_t
        index = 0;
    double
        lowest;
    if( array_length < 1 )
        return 0.0;
    for( lowest = rainfall[ 0 ]; index < array_length; ++index )
    {
        if( rainfall[ index ] < lowest )
            lowest = rainfall[ index ];
    }
    return lowest;
}