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Past exam of the computer science course of the University of Cambridge
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Paper 1
2021
126
1
Paper 1
12
a
1
1
Solution
a
b
1
4
i
b
1
ii
b
1
c
1
4
i
c
1
ii
c
1
2
Paper 1
6
a
2
1
Solution
a
b
2
1
Solution
b
c
2
1
Solution
c
3
Paper 1
14
a
3
4
i
a
1
ii
a
1
b
3
6
i
b
1
ii
b
1
iii
b
1
c
3
1
Solution
c
4
Paper 1
10
a
4
1
Solution
a
b
4
1
Solution
b
c
4
1
Solution
c
d
4
1
Solution
d
e
4
1
Solution
e
5
Paper 1
16
a
5
8
i
a
1
ii
a
1
iii
a
1
iv
a
1
b
5
6
i
b
1
ii
b
1
iii
b
1
6
Paper 1
14
a
6
6
i
a
1
ii
a
1
iii
a
1
b
6
6
i
b
1
ii
b
1
iii
b
1
7
Paper 1
16
a
7
6
i
a
1
ii
a
1
iii
a
1
b
7
8
i
b
1
ii
b
1
iii
b
1
iv
b
1
8
Paper 1
12
a
8
1
Solution
a
b
8
1
Solution
b
c
8
1
Solution
c
d
8
1
Solution
d
e
8
1
Solution
e
f
8
1
Solution
f
9
Paper 1
10
a
9
1
Solution
a
b
9
1
Solution
b
c
9
1
Solution
c
d
9
1
Solution
d
e
9
1
Solution
e
10
Paper 1
6
a
10
1
Solution
a
b
10
1
Solution
b
c
10
1
Solution
c
Paper 2
2021
118
1
Paper 2
10
a
1
4
i
a
1
ii
a
1
b
1
1
Solution
b
c
1
2
ii
c
1
2
Paper 2
15
a
2
1
Solution
a
b
2
10
i
b
1
ii
b
1
iii
b
1
iv
b
1
v
b
1
c
2
1
Solution
c
3
Paper 2
14
a
3
8
i
a
1
ii
a
1
iii
a
1
iv
a
1
b
3
4
ii
b
1
iii
b
1
4
Paper 2
14
a
4
1
Solution
a
b
4
1
Solution
b
c
4
4
i
c
1
ii
c
1
d
4
4
i
d
1
ii
d
1
5
Paper 2
8
a
5
1
Solution
a
b
5
1
Solution
b
c
5
1
Solution
c
d
5
1
Solution
d
6
Paper 2
6
a
6
1
Solution
a
b
6
1
Solution
b
c
6
1
Solution
c
7
Paper 2
14
a
7
1
Solution
a
b
7
4
i
b
1
ii
b
1
c
7
6
i
c
1
ii
c
1
iii
c
1
8
Paper 2
8
a
8
4
i
a
1
ii
a
1
b
8
2
ii
b
1
9
Paper 2
7
a
9
1
Solution
a
b
9
2
ii
b
1
c
9
1
Solution
c
10
Paper 2
12
a
10
6
i
a
1
ii
a
1
iii
a
1
b
10
4
i
b
1
ii
b
1
Paper 3
2021
96
1
Paper 3
8
a
1
1
Solution
a
b
1
1
Solution
b
c
1
1
Solution
c
d
1
1
Solution
d
2
Paper 3
6
a
2
1
Solution
a
b
2
1
Solution
b
c
2
1
Solution
c
3
Paper 3
6
a
3
1
Solution
a
b
3
1
Solution
b
c
3
1
Solution
c
4
Paper 3
6
a
4
1
Solution
a
b
4
1
Solution
b
c
4
1
Solution
c
5
Paper 3
6
a
5
1
Solution
a
b
5
1
Solution
b
c
5
1
Solution
c
6
Paper 3
15
a
6
10
i
a
1
ii
a
1
iii
a
1
iv
a
1
v
a
1
b
6
1
Solution
b
c
6
1
Solution
c
7
Paper 3
19
a
7
4
i
a
1
ii
a
1
b
7
6
i
b
1
ii
b
1
iii
b
1
c
7
6
i
c
1
ii
c
1
iii
c
1
8
Paper 3
6
a
8
1
Solution
a
b
8
1
Solution
b
c
8
1
Solution
c
9
Paper 3
15
a
9
1
Solution
a
b
9
1
Solution
b
c
9
1
Solution
c
d
9
1
Solution
d
e
9
6
i
e
1
ii
e
1
iii
e
1
Paper 4
2021
85
1
Paper 4
11
a
1
2
ii
a
1
b
1
1
Solution
b
c
1
1
Solution
c
d
1
1
Solution
d
e
1
1
Solution
e
2
Paper 4
7
a
2
1
Solution
a
b
2
4
i
b
1
ii
b
1
3
Paper 4
4
a
3
1
Solution
a
b
3
1
Solution
b
4
Paper 4
7
a
4
1
Solution
a
b
4
4
i
b
1
ii
b
1
5
Paper 4
10
a
5
1
Solution
a
b
5
1
Solution
b
c
5
1
Solution
c
d
5
1
Solution
d
e
5
1
Solution
e
6
Paper 4
9
a
6
6
i
a
1
ii
a
1
iii
a
1
b
6
1
Solution
b
7
Paper 4
12
a
7
6
i
a
1
ii
a
1
iii
a
1
b
7
4
i
b
1
ii
b
1
8
Paper 4
6
a
8
1
Solution
a
b
8
1
Solution
b
c
8
1
Solution
c
9
Paper 4
10
a
9
4
i
a
1
ii
a
1
b
9
4
i
b
1
ii
b
1
Paper 5
2021
77
1
Paper 5
8
a
1
1
Solution
a
b
1
1
Solution
b
c
1
1
Solution
c
d
1
1
Solution
d
2
Paper 5
6
a
2
1
Solution
a
b
2
1
Solution
b
c
2
1
Solution
c
3
Paper 5
1
Solution
3
4
Paper 5
18
a
4
4
i
a
1
ii
a
1
b
4
1
Solution
b
c
4
8
i
c
1
ii
c
1
iii
c
1
iv
c
1
d
4
1
Solution
d
5
Paper 5
9
a
5
1
Solution
a
b
5
1
Solution
b
c
5
4
i
c
1
ii
c
1
6
Paper 5
9
a
6
6
i
a
1
ii
a
1
iii
a
1
b
6
1
Solution
b
7
Paper 5
10
a
7
1
Solution
a
b
7
1
Solution
b
c
7
1
Solution
c
d
7
1
Solution
d
e
7
1
Solution
e
8
Paper 5
8
a
8
1
Solution
a
b
8
1
Solution
b
c
8
1
Solution
c
d
8
1
Solution
d
Paper 6
2021
111
1
Paper 6
8
a
1
1
Solution
a
b
1
1
Solution
b
c
1
1
Solution
c
d
1
1
Solution
d
2
Paper 6
12
a
2
1
Solution
a
b
2
1
Solution
b
c
2
1
Solution
c
d
2
1
Solution
d
e
2
1
Solution
e
f
2
1
Solution
f
3
Paper 6
6
a
3
1
Solution
a
b
3
1
Solution
b
c
3
1
Solution
c
4
Paper 6
14
a
4
4
i
a
1
ii
a
1
b
4
1
Solution
b
c
4
1
Solution
c
k
4
4
i
k
1
ii
k
1
5
Paper 6
9
n
5
1
Solution
n
a
5
1
Solution
a
b
5
4
i
b
1
ii
b
1
6
Paper 6
11
a
6
1
Solution
a
b
6
1
Solution
b
c
6
4
i
c
1
ii
c
1
d
6
1
Solution
d
7
Paper 6
12
a
7
6
i
a
1
ii
a
1
iii
a
1
b
7
4
i
b
1
ii
b
1
8
Paper 6
12
a
8
4
i
a
1
ii
a
1
b
8
6
i
b
1
ii
b
1
iii
b
1
9
Paper 6
9
a
9
6
i
a
1
ii
a
1
iii
a
1
b
9
1
Solution
b
10
Paper 6
8
a
10
1
Solution
a
b
10
1
Solution
b
c
10
1
Solution
c
d
10
1
Solution
d
Paper 7
2021
134
1
Paper 7
9
a
1
6
i
a
1
ii
a
1
iii
a
1
b
1
1
Solution
b
2
Paper 7
10
a
2
4
i
a
1
ii
a
1
b
2
4
i
b
1
ii
b
1
3
Paper 7
8
a
3
1
Solution
a
b
3
1
Solution
b
c
3
1
Solution
c
d
3
1
Solution
d
4
Paper 7
16
a
4
6
i
a
1
ii
a
1
iii
a
1
b
4
8
i
b
1
ii
b
1
iii
b
1
iv
b
1
5
Paper 7
12
a
5
1
Solution
a
b
5
1
Solution
b
c
5
1
Solution
c
d
5
1
Solution
d
e
5
1
Solution
e
f
5
1
Solution
f
6
Paper 7
21
a
6
6
i
a
1
ii
a
1
iii
a
1
b
6
1
Solution
b
c
6
2
ii
c
1
d
6
8
i
d
1
ii
d
1
iii
d
1
iv
d
1
7
Paper 7
20
a
7
10
i
a
1
ii
a
1
iii
a
1
iv
a
1
v
a
1
b
7
1
Solution
b
c
7
6
i
c
1
ii
c
1
iii
c
1
8
Paper 7
8
a
8
1
Solution
a
b
8
1
Solution
b
c
8
1
Solution
c
d
8
1
Solution
d
9
Paper 7
10
a
9
1
Solution
a
b
9
1
Solution
b
c
9
1
Solution
c
d
9
1
Solution
d
e
9
1
Solution
e
10
Paper 7
10
a
10
1
Solution
a
b
10
1
Solution
b
c
10
1
Solution
c
d
10
1
Solution
d
e
10
1
Solution
e
Paper 8
2021
170
1
Paper 8
7
a
1
1
Solution
a
b
1
4
i
b
1
ii
b
1
2
Paper 8
10
a
2
1
Solution
a
b
2
1
Solution
b
c
2
1
Solution
c
d
2
1
Solution
d
e
2
1
Solution
e
3
Paper 8
14
a
3
8
i
a
1
ii
a
1
iii
a
1
iv
a
1
b
3
4
i
b
1
ii
b
1
4
Paper 8
19
a
4
12
i
a
1
ii
a
1
iii
a
1
iv
a
1
v
a
1
vi
a
1
b
4
1
Solution
b
c
4
1
Solution
c
d
4
1
Solution
d
5
Paper 8
9
a
5
4
i
a
1
ii
a
1
b
5
1
Solution
b
c
5
1
Solution
c
6
Paper 8
6
a
6
1
Solution
a
b
6
1
Solution
b
c
6
1
Solution
c
7
Paper 8
6
a
7
1
Solution
a
b
7
1
Solution
b
c
7
1
Solution
c
8
Paper 8
10
a
8
1
Solution
a
b
8
1
Solution
b
c
8
1
Solution
c
d
8
1
Solution
d
e
8
1
Solution
e
9
Paper 8
19
a
9
4
i
a
1
ii
a
1
b
9
6
i
b
1
ii
b
1
iii
b
1
c
9
4
i
c
1
ii
c
1
d
9
1
Solution
d
10
Paper 8
8
a
10
1
Solution
a
b
10
1
Solution
b
c
10
1
Solution
c
d
10
1
Solution
d
11
Paper 8
11
a
11
1
Solution
a
b
11
8
i
b
1
ii
b
1
iii
b
1
iv
b
1
12
Paper 8
7
a
12
4
i
a
1
ii
a
1
b
12
1
Solution
b
13
Paper 8
4
a
13
1
Solution
a
b
13
1
Solution
b
14
Paper 8
13
a
14
1
Solution
a
b
14
1
Solution
b
c
14
4
i
c
1
ii
c
1
d
14
1
Solution
d
e
14
1
Solution
e
15
Paper 8
12
a
15
1
Solution
a
b
15
4
i
b
1
ii
b
1
c
15
4
i
c
1
ii
c
1
Paper 9
2021
166
1
Paper 9
9
a
1
1
Solution
a
b
1
6
i
b
1
ii
b
1
iii
b
1
2
Paper 9
10
a
2
1
Solution
a
b
2
1
Solution
b
c
2
1
Solution
c
d
2
1
Solution
d
e
2
1
Solution
e
3
Paper 9
4
a
3
1
Solution
a
b
3
1
Solution
b
4
Paper 9
12
a
4
4
i
a
1
ii
a
1
b
4
1
Solution
b
c
4
4
i
c
1
ii
c
1
5
Paper 9
7
a
5
2
ii
a
1
b
5
1
Solution
b
c
5
1
Solution
c
6
Paper 9
12
a
6
1
Solution
a
b
6
2
ii
b
1
c
6
4
i
c
1
ii
c
1
d
6
1
Solution
d
7
Paper 9
10
a
7
1
Solution
a
b
7
1
Solution
b
c
7
1
Solution
c
d
7
1
Solution
d
e
7
1
Solution
e
8
Paper 9
18
a
8
8
i
a
1
ii
a
1
iii
a
1
iv
a
1
b
8
1
Solution
b
c
8
6
i
c
1
ii
c
1
iii
c
1
9
Paper 9
14
a
9
6
i
a
1
ii
a
1
iii
a
1
b
9
1
Solution
b
c
9
4
i
c
1
ii
c
1
10
Paper 9
8
a
10
1
Solution
a
b
10
1
Solution
b
c
10
1
Solution
c
d
10
1
Solution
d
11
Paper 9
11
a
11
1
Solution
a
b
11
8
i
b
1
ii
b
1
iii
b
1
iv
b
1
12
Paper 9
12
a
12
1
Solution
a
b
12
1
Solution
b
c
12
1
Solution
c
d
12
1
Solution
d
e
12
1
Solution
e
f
12
1
Solution
f
13
Paper 9
4
a
13
1
Solution
a
b
13
1
Solution
b
14
Paper 9
11
a
14
6
i
a
1
ii
a
1
iii
a
1
b
14
1
Solution
b
c
14
1
Solution
c
15
Paper 9
9
a
15
1
Solution
a
b
15
4
i
b
1
ii
b
1
c
15
1
Solution
c
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Past exam of the computer science course of the University of Cambridge
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