Code for first fit algorithm in C?

#include <stdio.h>

#include <conio.h> //function to print the bins:

void printBins(float bins [500] [500],int items )

{

for (int j=1;j<=items;j++)

{

for (int i=1;i<=items;i++)

{

printf(" %1.3f",bins[i][j]);

}

printf("\n");

}

} int main()

{

int items, x=1,c=1, i=0, j=1, countOfBins=1;

float z,sum=0 ,inputitems[500], bin[500][500]; printf("Enter the number of items:");

scanf("%d", &items); //scanning how many elements the user wants to enter

if (items<=0)

{

printf("Can't bin-pack on zero elements");

getch();

}

else

{

do{

printf("\nEnter item number %d: ",x);

scanf ("%f",&z); //scanning the elements the user inputs if ((z<0)(z>1)) //assuming my bins range from 0 to 1 only

{

printf ("\nitem number %d is not in range of 0 to 1",x);

goto stop;

}

else //if all the inputs were in the correct range

{

inputitems[x]=z; //save my elements in an array called inputitems

x++;

}

}while (x<=items); //end of do-while statement

//technique number 1:

printf ("\nIn Next Fit online technique:");

loop:

while (c<=items)

{

if (sum+inputitems[c]<=1) //to check if you have any more room to fit in the bin

{

i++; //assuming that each row represents a bin

bin[i][j]=inputitems[c]; //place element from inputitems array into a 2D array called bin

sum += inputitems[c];

c++;

goto loop; //go back to the while statement to check condition

}

else

{

j++;

countOfBins++; //to count the number of bins we used

i=1;

sum=0;

bin[i][j]=inputitems[c];

sum += inputitems[c];

c++;

goto loop;

} } //end of while loop printf("\nNumber of bins used: %d \n", countOfBins);

printf("\nstructure of bin\n(FYI any empty rows shown, are equal to the number of items that you have entered)\n");

printBins(bin,items);//to print the bins used with their elements //end of first technique, can;t stop: getch();

}//end of very first else }//end of main //I could not figure out any of the other 4 techniques of Bin Packing... any help please?