#include <stdio.h>
#include <stdlib.h>

int main(void)
{
float *Numbers = NULL,J[80], BiggestNum = 0,Total = 0, Q;
int InputBuffer = 0;
int I = 0 , Total1=0;
do
{
printf( "Please Enter How Many Number You Want to subtract(1~80): " );
scanf( "%d", &InputBuffer );
InputBuffer = InputBuffer-1;
} while( ( InputBuffer < 1 ) || ( InputBuffer > 80 ) );
Numbers = ( ( float * )calloc( InputBuffer, sizeof( int ) ) );
if( Numbers == NULL )
{
printf( "Failed to allocate the array. Exiting" );
getchar( );
return 1;
}

{
printf("Enter Number[1]: ");
scanf("%f",&J[80]);
}
{
for( I = 0; I < InputBuffer; I++ )
{

printf( "Enter number[%d]: ", ( I + 2 ) );
scanf( "%f", &BiggestNum );
Numbers[I] = BiggestNum;
}

BiggestNum = 0;

for( I = 0; I < InputBuffer ; I++ )
if( BiggestNum < Numbers[I] )
BiggestNum = Numbers[I];

for( I = 0; I < InputBuffer; I++ )
Total = J[80] -= Numbers[I];


printf( "\nSubtract of the numbers entered is: %f\n", Total );
return 0;
}
}