
DSA quiz
Authored by JEYASARAVANAN JEYASARAVANAN
Computers
University
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <stdio.h>
int main() {
int a = 5;
int b = a+++a;
printf("%d", b);
return 0;
}
What happens?
Prints 11
Prints 10
Compile error
Runtime error
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <iostream>
using namespace std;
int main() {
int arr[3] = {1, 2, 3};
cout << arr[3];
return 0;
}
What happens?
Prints 0
Undefined behavior (may print garbage)
Compile error
Prints 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <stdio.h>
int main() {
char str[5] = "Hello";
printf("%s", str);
return 0;
}
What happens?
Prints Hello
Compile error: string too long
Prints Hell
Runtime error
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <iostream>
using namespace std;
int main() {
int *p = NULL;
cout << *p;
}
Prints 0
Prints garbage
Compile error
Runtime segmentation fault
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <stdio.h>
int main() {
int x = 10;
printf("%d", ++x++);
return 0;
}
Prints 12
Compile error
Prints 11
Undefined behavior
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <iostream>
using namespace std;
int main() {
string s = "abc";
s[3] = 'd';
cout << s;
}
Prints abcd
Runtime error
Prints abc
Prints garbage
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
#include <stdio.h>
int main() {
int a = 5, b = 2;
printf("%d", a+++b);
return 0;
}
8
7
6
Compile error
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