int main(){
bignum valor, aux, total;
int n, f, i, bill = 1;
char str[MAXDIGITS];
scanf("%d %d", &n, &f);
while( n ) {
scanf("%s", &str );
stringToBignum( str, &valor );
for( i = 1; i < n; i++ ){
scanf("%s", &str );
stringToBignum( str, &aux );
add_bignum( &valor, &aux, &total );
valor = total;
}
printf("Bill #%d costs ", bill++ );
print_bignum( &valor );
sprintf( str, "%d", f );
stringToBignum( str, &aux );
divide_bignum( &valor, &aux, &total );
printf(": each friend should pay ");
print_bignum(&total);
printf("\n\n");
scanf("%d %d", &n, &f);
}
return 0;
}
/** Test Function */
int main( )
{
bignum n1, n2, n3, zero;
// Instantiate string buffers for big numbers a and b
char* a = calloc( MAXDIGITS, sizeof( char ) );
char* b = calloc( MAXDIGITS, sizeof( char ) );
// Get big numbers a and b as strings
printf( "a = " );
fgets( a, MAXDIGITS, stdin );
printf( "b = " );
fgets( b, MAXDIGITS, stdin );
// Remove the newline character (if present) from string buffers
char* nl;
if( ( nl = strchr( a, '\n' ) ) != NULL ) *nl = '\0';
if( ( nl = strchr( b, '\n' ) ) != NULL ) *nl = '\0';
// Create a and b big number instances via the string buffers
string_to_bignum( a, &n1 );
string_to_bignum( b, &n2 );
// Test addition
add_bignum( &n1, &n2, &n3 );
printf( "a + b = " );
print_bignum( &n3 );
// Test comparison
int comparison = compare_bignum( &n1, &n2 );
printf( "a %s b\n", comparison == 0 ? "==" : ( comparison < 0 ? ">" : "<" ) );
// Test subtraction
subtract_bignum( &n1, &n2, &n3 );
printf( "a - b = " );
print_bignum( &n3 );
// Test multiplication
multiply_bignum( &n1, &n2, &n3 );
printf( "a * b = " );
print_bignum( &n3 );
// Test division
int_to_bignum( 0, &zero );
if( compare_bignum( &zero, &n2 ) == 0 )
{
printf( "a / b = NaN\n" );
}
else
{
divide_bignum( &n1, &n2, &n3 );
printf( "a / b = " );
print_bignum( &n3 );
}
return 0;
}
int main(void) {
int a,b;
bignum n1,n2,n3,zero;
while (scanf("%d %d",&a,&b) != EOF) {
printf("a = %d b = %d\n",a,b);
int_to_bignum(a,&n1);
int_to_bignum(b,&n2);
add_bignum(&n1,&n2,&n3);
printf("addition -- ");
print_bignum(&n3);
printf("compare_bignum a ? b = %d\n",compare_bignum(&n1, &n2));
subtract_bignum(&n1,&n2,&n3);
printf("subtraction -- ");
print_bignum(&n3);
multiply_bignum(&n1,&n2,&n3);
printf("multiplication -- ");
print_bignum(&n3);
int_to_bignum(0,&zero);
if(compare_bignum(&zero, &n2) == 0)
printf("division -- NaN \n");
else {
divide_bignum(&n1,&n2,&n3);
printf("division -- ");
print_bignum(&n3);
}
printf("--------------------------\n");
}
return 0;
}
