HW1 Report
Xing Wang
HW1-PR1 Question
Not Good Formatted Example
Perfect Answer
HW1-PR2
• your program should read an operand, an
operator as a single character +-*/, and
another operand, separated by spaces. Output
the results.
• For example:
– 100 + 3.14 , output 103.14
– 4 * 5, output 20
HW1-PR2 Test Cases
Input
Output
1+2
3
1-2
-1
1*2
2
4/2
2
1 plus 2
2
1 minus 2
-1
1 mul 2
2
4 div 2
2
1.1 + 2.1
3.2
1/0
Warning : Divided by 0 is invalid.
HW1-PR3
• Exercise 11 on page 86, but with the following
modifications: instead of using U.S. currency,
write your program for the Euro. Note that Euro
coins come in different denominations from U.S.
coins; there are 8 that you must account for.
Report to the user the individual counts (as in the
original problem) and the sum in Euros and cents
(instead of dollars and cents). In addition, convert
the final value to U.S. dollars using a recent
exchange rate (do not worry about rounding the
result, for now).
HW1-PR3 Test Cases
Cent 1 Cent 2 Cent 5 Cent
10
Cent
20
Cent
50
Euro 1 Euro 2 Total
Euro
Total
Dollar
1
2
1
0
0
0
0
0
0.1
0.136
0
0
0
3
1
1
0
0
1
1.36
0
0
0
0
0
0
4
3
10
13.6
3
1
1
2
1
1
0
0
1
1.36
1
2
1
0
2
1
1
4
10
13.6
3
6
7
9
3
4
2
2
10
13.6
36
27
86
55
79
47
22
14
100
136
585
630
807
394
284
116
511
138
1000
1360
4350
750
9408
4078
1214
6047
2567
1615
10000
13600
16749
85688
44799
14830
57099
57132
15652
19429
10010
0
13613
6
HW1-PR4
HW1-PR4 Signed Integer
Max Integer : 2,147,483,647
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
-1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Min Integer : -2,147,483,648
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
The negative integer
• The absolute value of negative integer is the
complementary of the binary representation
plus 1.
-1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Complementary of -1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Absolute value of -1, Complementary of -1 plus 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
HW1-PR4-Analysis 1
• 10^10
(1001010100000010111110010000000000 )
1 0 0 1 0 1 0 1 0 0 0 0 0 0 1 0 1 1 1 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0
HW1-PR4-Analysis 2
• 10^12, is a negative value as the sign bit is 1.
1 1 1 0 1 0 0 0 1 1 0 1 0 1 0 0 1 0 1 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0