Computer Skills for Scientific Faculties

C++ final 2021 exam

Let you have the following code:
int x[4][3] = {{1, 2}, {3, 4}, {5, 6, 7}, {9, 11}};
What is the value stored in x[1][0]?

What is the value of the variable 'Result' after executing the following program?
 
#include &lt;iostream&gt;
using namespace std;
int main() {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int X = 47, Y = 4;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int Result = --X / ++Y %Y * 4;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0;
}//end main

How many times are the statements "First Semester" and "Second Semester" printed here after executing the following program?
 
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int i = 0; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (i &lt; 15) { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (i &lt; 12) 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{cout &lt;&lt; "First Semester " &lt;&lt; endl;} 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else {cout &lt;&lt; "Second Semester" &lt;&lt; endl;} 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i++;}
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; "First Semester " &lt;&lt; endl;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

&nbsp;First Semester 13 times and Second Semester 3 times&nbsp;

&nbsp;First Semester 12 times and Second Semester 3 times&nbsp;

&nbsp;First Semester 12 times and Second Semester 4 times&nbsp;

&nbsp;First Semester 13 times and Second Semester 4 times&nbsp;

What is the output after executing the following statements?
 
&nbsp;#include &lt;iostream&gt; 
#include&lt;string&gt; 
using namespace std; 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;string s1 = "Jordan University"; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; s1.find('i', 9) &lt;&lt; endl; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

&nbsp;What is the stored value of the variable 'result' after executing the following program?&nbsp;
 
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
int var2 = 4; 
int Tester(int = 10, int = 8); 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int result; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;result = Tester(7); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main 
int Tester(int var1, int var2) { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return (var1++ * ++::var2);}&nbsp;

&nbsp;What is the output after executing the following program?&nbsp;
 
&nbsp;
#include&lt;iostream&gt; 
#include&lt;string&gt; 
using namespace std; 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;string s1 = "Jordan University 1"; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; (s1.substr(15, 8)).length() &lt;&lt; endl; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main

&nbsp;What is the output after executing the following program? 
&nbsp;
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
int T; 
void function(int box[], int size) { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int index = 0; index &lt; size; index++) 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;box[index] = ++T * (box[T + 1] + index); 
} 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;const int size = 8; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int Array[size] = { 5,24,26,82,102,121,114,126 }; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;function(Array, 6); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int X = 0; X &lt; size / 3; X++) 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; Array[X] &lt;&lt; " "; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

How many times the word 'Final' is printed here after executing the following program?&nbsp;
 
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int I = 0; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (I &lt; 4) { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int i = 0; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;do { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; "Final" &lt;&lt; endl; i++;} 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (i &lt;= 1); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I++;} 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

&nbsp;What is the output after executing the following statements?&nbsp;
 
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;enum Grades {A=9,B=8,C=7,D,F}; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Grades G1 = B, G2 = F; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; G1 &lt;&lt; " " &lt;&lt; G2 &lt;&lt; endl; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the stored value of the variable 'new_loc' after executing the following program?
 
&nbsp;&nbsp;#include &lt;iostream&gt; 
using namespace std; 
void Soultion(double* Location) { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*Location = 47.7; 
} 
void main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;double* access; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;double new_loc = 25.8; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;access = &amp;new_loc; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*access = 12.3; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Soultion(access); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;new_loc += 11; 
}//end main&nbsp;

How many times the word 'C++' is printed here after executing the following program?
 
#include &lt;iostream&gt; 
using namespace std; 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int i = 6; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;do { cout &lt;&lt; "C++" &lt;&lt; endl; i--; } while (i--); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the output after executing the following statements?
 
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
void F1(int&amp; y, int&amp; x) { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;x = x + 5; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;y = y + 10; 
} 
int main() { 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int x = 15, y = 45; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;F1(x, y); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; x &lt;&lt; " " &lt;&lt; y &lt;&lt; endl; 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the output after executing the following statements?
 
&nbsp;#include &lt;iostream&gt; 
using namespace std; 
void F1(int x[]) { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int i = 0; i &lt; 4; i++) 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (x[i] % 2 != 0) 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;x[i] = x[i] + 10; 
} 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int x[4] = { 3,6,4,5 }; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;F1(x); 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int i = 0; i &lt; 4; i++) 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; x[i] &lt;&lt; " "; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the value stored in 'var5' after executing the following program? Assume input is : 
45.235 8.88 Khalid Ahmad&nbsp;
 
&nbsp;#include &lt;iostream&gt; 
#include&lt;string&gt; 
using namespace std; 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int var1, var2; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;double var3; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;char var4; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;string var5; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cin &gt;&gt; var4 &gt;&gt; var1 &gt;&gt; var4; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cin &gt;&gt; var2 &gt;&gt; var3 &gt;&gt; var5; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cin.get(var4); 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the stored value of 'Array[1][3]' after executing the following program?
 
#include &lt;iostream&gt; 
using namespace std; 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int Array[2][4] = { 6,11,12,15,8,16 }; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int A = 0, B = 0; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (A &lt; 4) { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Array[1][B] = Array[0][A] / 2 * 2 + 7; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A++; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B++; 
} 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the output after executing the following program?
 
#include &lt;iostream&gt; 
using namespace std; 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int row, col, x[2][2] = { {2,1},{4,3} }; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (col = 0; col &lt; 2; col++) 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (row = 0; row &lt; 2; row++) 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; x[row][col] &lt;&lt; " "; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

&nbsp;What is the stored value of variable 'Result' after executing the following program? 
Note: ASCII codes for ‘A’=65, ‘a’=97, the ASCII code value of the next letter is the same as the ASCII code value of the letter before it plus 1
 
#include &lt;iostream&gt; 
using namespace std; 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bool Result = static_cast&lt;int&gt;(-6.3 + 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;static_cast&lt;int&gt;('G') % 11) + 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;static_cast&lt;bool&gt;(7.5); 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main
&nbsp;

What is the output after executing the following program?
 
#include &lt;iostream&gt; 
using namespace std; 
int x = 60; 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int x = 15, y = 20; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{int x = 35; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;::x = x + 5;} 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; x &lt;&lt; " " &lt;&lt; ::x &lt;&lt; endl; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0;}//end main&nbsp;

What is the output after executing the following program?
 
#include &lt;iostream&gt; 
using namespace std; 
void Tester(int&amp; var1, int var2) { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;switch (--var1 % 6) { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case 2:case3:cout &lt;&lt; var1 * var2 &lt;&lt; " "; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case 4 :case 1:cout &lt;&lt; ((--var2%2==0)?"True":"False") &lt;&lt;" "; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;default: cout &lt;&lt; (var1 * var1) &lt;&lt; " "; 
} 
} 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int var1 = 15; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tester(var1, 20); 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; var1; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return 0; 
}//end main&nbsp;

What is the stored value of variable 'var' after executing the following program? 
Note :ASCII codes for ‘A’=65, ‘a’=97,the ASCII code value of the next letter is 
the same as the ASCII code value of the letter before it plus 1
 
#include &lt;iostream&gt; 
using namespace std; 
int Tester(int&amp; var) { return ++var; } 
int Tester(int var, double y, int ch); 
int main() { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int var = 27; double y = 14.7; int ch = 'E'; 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;var = Tester(Tester(var), y, ch); 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt; var &lt;&lt; endl; return 0; 
}//end main 
int Tester(int var, double y, int ch) { 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;var = Tester(ch) / static_cast&lt;int&gt;(y); 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return var; 
}&nbsp;