Need immmediate help with program (basic C++ stuff)

**YevGenius** · 04-30-2003

Hello,
I've writing a function to find the three largest integers in a 3rd dimensional array which has #0 to 9 stored exclusively. However, I keep getting the same highest # (usually 9) stored in max_store[]. I have tried everything, and I don't know where to go next. If some one could please offer me some help, I'd really appreciate it. I need this asap. Thank you so much.

Code:

void find_max(int fun[ROW][COL][LAYER]) {
   
   int num, r, c, l, k;
   int max=0;
   int max_store[3]={-1};

   for (num=0; num < 3; num++) {
      for (r=0; r < ROW; r++) {
         for (c=0; c < COL; c++) {
            for (l=0; l < LAYER; l++) {
               for (k=0; k < 3; k++) {                         
                  if (max < fun[r][c][l] && max_store[k] != max)
                     max = fun[r][c][l];
               }
                   
            }
            
         }  
          
      }
      
      max_store[num] = max; 
      max = 0;
     
      
   }

Justin

P.S. If you want to look at entire source file, I attached it to this thread.

**The Dog** · 04-30-2003

Write a method to check if a number exists in an array.
Then use that here :

Code:

if (max < fun[r][c][l] && !NumExistsInArray( max_store, 3 ) )
      max = fun[r][c][l];

The error with your code lies in the fact that it never really checks to see if a number has already been chosen.

**YevGenius** · 04-30-2003

Hi,
I have tried creating a method to check if a number exists in an array but still I am not getting the proper solutions. If someone could please write me that method, I would really appreciate it.

Code:

int max_store[3]={-1};

bool NumExistsInArray(int max_store[3], const int qt, int fun[ROW][COL][LAYER]) {
                                         
   
   for (int r=0; r < ROW; r++) {
      for (int c=0; c < COL; c++) {
         for (int l=0; l < LAYER; l++) {
            for (int m=0; m < qt; m++) {
               if (max_store[m] == fun[r][c][l]) {
                  return true;
               }
              
            }    
            
         }   
                 
      }
        
   }  
   return false;
} 

void find_max(int fun[ROW][COL][LAYER]) {
   
   int max=0;   
   int num;

   for (num=0; num < 3; num++) {
      for (int r=0; r < ROW; r++) {
         for (int c=0; c < COL; c++) {
            for (int l=0; l < LAYER; l++) {
                                           
               if (max < fun[r][c][l] && !NumExistsInArray( max_store, 3, fun ))
                  max = fun[r][c][l];
                 
            }
            
         }  
          
      }
      max_store[num] = max; 
      max = 0;
     
      
   }

Justin

**7stud** · 04-30-2003

You need to...

Oh! Wait a minute. You needed immediate help. Sorry, I was too late. Never mind.

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