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Previous year question hub

C Programming and Recursion - Programming and Data Structures - Computer Science & Information Technology Previous Year Questions

Practice C Programming and Recursion - Programming and Data Structures - Computer Science & Information Technology previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

29Papers
18Years
94Questions
1Topics

C Programming and Recursion question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 53 56.4%
Easy 41 43.6%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 57 60.6%
Numerical Answer Type (NAT) 32 34%
MSQ 3 3.2%
Fill in the blanks 2 2.1%

Subject weightage

Top subjects by unique question coverage.

Computer Science & Information Technology
94 Qs

Most asked topics

Top topics across the included previous year papers.

Programming and Data Structures
94 Qs

Subtopic coverage

Top subtopics inside this exact selection.

C Programming and Recursion
94 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Computer Science and Information Technology (CS) 2026
4 Qs
Computer Science and Information Technology (CS) 2026
3 Qs
Computer Science & Information Technology (CS) 2025 [Session 2]
4 Qs
Computer Science & Information Technology (CS) 2025 [Session 1]
3 Qs
Computer Science & Information Technology (CS) 2024 [Session 2]
4 Qs
Computer Science & Information Technology (CS) 2024 [Session 1]
3 Qs
Computer Science & Information Technology (CS) 2023 [Session 2]
1 Qs
Computer Science & Information Technology (CS) 2022 [Session 2]
3 Qs
Computer Science & Information Technology (CS) 2021 [Session 2]
4 Qs
Computer Science & Information Technology (CS) 2021 [Session 1]
2 Qs
Computer Science & Information Technology (CS) 2020 [Session 2]
3 Qs
Computer Science & Information Technology (CS) 2019 [Session 2]
6 Qs
Computer Science & Information Technology (CS) 2018 [Session 2]
5 Qs
Computer Science & Information Technology (CS) 2017 [Session 2]
6 Qs
Computer Science & Information Technology (CS) 2017 [Session 1]
4 Qs
Computer Science & Information Technology (CS) 2016 [Session 2]
5 Qs
Computer Science & Information Technology (CS) 2016 [Session 1]
4 Qs
Computer Science & Information Technology (CS) 2014 [Session 2]
4 Qs
Computer Science & Information Technology (CS) 2014 [Session 1]
1 Qs
Computer Science & Information Technology (CS) 2014 [Session 3]
1 Qs
Computer Science & Information Technology (CS) 2013 [Session 1]
2 Qs
Computer Science & Information Technology (CS) 2013 [Session 3]
2 Qs
Computer Science & Information Technology (CS) 2013 [Session 4]
2 Qs
Computer Science & Information Technology (CS) 2013 [Session 2]
1 Qs
Computer Science & Information Technology (CS) 2011
5 Qs
Computer Science & Information Technology (CS) 2010
3 Qs
Computer Science & Information Technology (CS) 2009
1 Qs
Computer Science & Information Technology (CS) 2008
6 Qs
Computer Science & Information Technology (CS) 2007
2 Qs

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper nameYearPDFAttempt
Computer Science and Information Technology (CS) 20262026
3 questions in this view		2026
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science and Information Technology (CS) 20262026
4 questions in this view		2026
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2025 [Session 1]2025
3 questions in this view		2025
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2025 [Session 2]2025
4 questions in this view		2025
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2024 [Session 1]2024
3 questions in this view		2024
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2024 [Session 2]2024
4 questions in this view		2024
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ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2023 [Session 2]2023
1 questions in this view		2023
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Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2022 [Session 2]2022
3 questions in this view		2022
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2021 [Session 1]2021
2 questions in this view		2021
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2021 [Session 2]2021
4 questions in this view		2021
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2020 [Session 2]2020
3 questions in this view		2020
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2019 [Session 2]2019
6 questions in this view		2019
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2018 [Session 2]2018
5 questions in this view		2018
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2017 [Session 1]2017
4 questions in this view		2017
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2017 [Session 2]2017
6 questions in this view		2017
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2016 [Session 1]2016
4 questions in this view		2016
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2016 [Session 2]2016
5 questions in this view		2016
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2014 [Session 1]2014
1 questions in this view		2014
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2014 [Session 2]2014
4 questions in this view		2014
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2014 [Session 3]2014
1 questions in this view		2014
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2013 [Session 1]2013
2 questions in this view		2013
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2013 [Session 2]2013
1 questions in this view		2013
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2013 [Session 3]2013
2 questions in this view		2013
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 2013 [Session 4]2013
2 questions in this view		2013
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 20112011
5 questions in this view		2011
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 20102010
3 questions in this view		2010
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Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 20092009
1 questions in this view		2009
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 20082008
6 questions in this view		2008
ExamElite PDFs
ExamElite solutions
Official documents
Official question paperOriginal authority-issued PDF Official Download
Computer Science & Information Technology (CS) 20072007
2 questions in this view		2007
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Official documents
Official question paperOriginal authority-issued PDF Official Download

All C Programming and Recursion previous year questions

Practice every matching question in batches of 20, with every available option.

1
2007 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2007
Consider the following segment of C-code:
int j, n;
j = 1;
while (j <= n)
    j = j*2;
The number of comparisons made in the execution of the loop for any \( n > 0 \) is:
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2
2007 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2007
Consider the following C function:
int f(int n)
{static int r=0;
if (n <= 0) return 1;
if (n > 3)
{r = n;
return f(n-2) + 2;}
return f(n-1) + r;
}
What is the value of f(5)?
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3
2008 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2008
Which combination of the integer variables x, y and z makes the variable a get the value 4 in the following expression?
\[ a = ( x > y ) ? ( ( x > z ) ? x : z ) : ( ( y > z ) ? y : z ) \]
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4
2008 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2008
What is printed by the following C program?
int f(int x, int *py, int **ppz) { int y, z; **ppz += 1; z = *ppz; *py += 2; y = *py; x += 3; return x+y+z; } void main() { int c, *b, **a; c = 4; b = &c; a = &b; printf("%d", f(c, b, a)); }
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5
2008 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2008
Choose the correct option to fill ?1 and ?2 so that the program below prints an input string in reverse order. Assume that the input string is terminated by a newline character.
void reverse(void) { int c; if(??1) reverse(); ??2 } main() { printf("Enter Text"); printf("\n"); reverse(); printf("\n"); }
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6
2008 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2008
The following C function takes a singly-linked list of integers as a parameter and rearranges the elements of the list. The function is called with the list containing the integers 1,2,3,4,5,6,7 in the given order. What will be the contents of the list after the function completes execution?
struct node { int value; struct node *next; }; void rearrange(struct node *list) { struct node *p, *q; int temp; if ((!list) || (!list -> next)) return; p = list; q = list -> next; while (q) { temp = p -> value; p -> value = q -> value; q -> value = temp; p = q -> next; q = p ? p -> next : 0; } }
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7
2008 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2008
f1(8) and f2(8) return the values
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8
2008 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2008
Statement for Linked Answer Questions 84 and 85:
Consider the following C program that attempts to locate an element x in an array Y[ ] using binary search. The program is erroneous.
1. f(int Y[10], int x) {
2. int i, j, k;
3. i = 0; j = 9;
4. do {
5. k = (i+j)/2;
6. if (Y[k] < x) i = k; else j = k;
7. } while ((Y[k] != x) && (i < j));
8. if (Y[k] == x) printf("x is in the array");
9. else printf("x is not in the array");
10. }
On which of the following contents of Y and x does the program fail?
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9
2009 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2009
Consider the program below:
#include <stdio.h> int fun(int n, int *f_p) { int t, f; if (n <= 1) { *f_p = 1; return 1; } t = fun(n-1, f_p); f = t + *f_p; *f_p = t; return f; } int main() { int x = 15; printf("%d\n", fun(5, &x)); return 0; }The value printed is :
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10
2010 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2010
What does the following program print? #include <stdio.h> void f(int *p, int *q) { p = q; *p = 2; } int i=0, j=1; int main() { f(&i, &j); printf("%d %d\n", i, j); return 0; }
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11
2010 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2010
What is the value printed by the following C program?
#include <stdio.h> int f(int *a, int n) { if (n <= 0) return 0; else if (*a % 2 == 0) return *a + f(a+1, n-1); else return *a - f(a+1, n-1); } int main() { int a[] = {12, 7, 13, 4, 11, 6}; printf("%d", f(a, 6)); return 0; }
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12
2010 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2010
The following program is to be tested for statement coverage:
begin
if (a == b) {S1; exit;}
else if (c == d) {S2;}
else {S3; exit;}
S4;
end
The test cases T1, T2, T3 and T4 given below are expressed in terms of the properties satisfied by the values of variables a, b, c and d. The exact values are not given.
T1: a, b, c and d are all equal
T2: a, b, c and d are all distinct
T3: a == b and c != d
T4: a != b and c == d
Which of the test suites given below ensures coverage of statements S1, S2, S3 and S4?
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13
2013 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2013 [Session 1]
What is the return value of f(p,p), if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value.
int f (int &x, int c) {
c = c - 1;
if (c==0) return 1;
x = x + 1;
return f(x,c) * x;
}
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14
2013 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2013 [Session 1]
If array A is made to hold the string “abcde”, which of the above four test cases will be successful in exposing the flaw in this procedure?
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15
2013 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2013 [Session 2]
What is the return value of f(p, p), if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value. int f (int &x, int c) { c = c - 1; if (c==0) return 1; x = x + 1; return f(x, c) * x; }
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16
2013 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2013 [Session 3]
What is the return value of f(p, p), if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value.
int f (int &x, int c) {
  c = c - 1;
  if (c==0) return 1;
  x = x + 1;
  return f(x, c) * x;
}
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17
2014 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2014 [Session 1]
Consider the following C function in which size is the number of elements in the array E:

int MyX(int *E, unsigned int size)
{
int Y = 0;
int Z;
int i, j, k;

for(i = 0; i < size; i++)
Y = Y + E[i];

for(i = 0; i < size; i++)
for(j = i; j < size; j++)
{
Z = 0;
for(k = i; k <= j; k++)
Z = Z + E[k];
if (Z > Y)
Y = Z;
}
return Y;
}

The value returned by the function MyX is the
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18
2014 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2014 [Session 2]
Suppose \(n\) and \(p\) are unsigned int variables in a C program. We wish to set \(p\) to \(^nC_3\). If \(n\) is large, which one of the following statements is most likely to set \(p\) correctly?
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19
2014 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2014 [Session 2]
For a C program accessing X[i][j][k], the following intermediate code is generated by a compiler. Assume that the size of an integer is 32 bits and the size of a character is 8 bits.t0 = i * 1024
t1 = j * 32
t2 = k * 4
t3 = t1 + t0
t4 = t3 + t2
t5 = X[t4]Which one of the following statements about the source code for the C program is CORRECT?
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20
2014 · Computer Science & Information Technology · Programming and Data Structures · C Programming and Recursion
Computer Science & Information Technology (CS) 2014 [Session 2]
Consider the following function\n\ndouble f(double x) {\n if( abs(x*x - 3) < 0.01) return x;\n else return f(x/2 + 1.5/x);\n}\n\nGive a value q (to 2 decimals) such that f(q) will return q: ____.
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Showing 20 of 88 questions