#include<stdio.h> int main() { int a = 10; while(a > 0) printf("%d", a--); } What’s the issue?

No break condition; missing control inside loop

#include<stdio.h> int main() { int x = 10; switch(x) { case 10: printf("Ten"); default: printf("Other"); } return 0; } What’s the issue?

Missing break; causing fall-through

#include<stdio.h> int main() { int a = 0; do { printf("Hello"); } while(a); return 0; } What’s the issue?

Loop runs once despite condition

#include<stdio.h> int main() { int i = 0; while(i++ < 5) printf("%d", i); return 0; } What’s happening?

Value of i increments after comparison

#include<stdio.h> #include<stdlib.h> struct Node { int data; struct Node *next; }; int main() { struct Node *head; head->data = 10; printf("%d", head->data); return 0; } What’s wrong?

head is uninitialized, causing segmentation fault

#include<stdio.h> int main() { int a[5]; a[0] = 1; printf("%d", *a); return 0; } What’s the issue?

Incorrect pointer dereferencing

#include<stdio.h> int main() { int queue[3]; int front = 0, rear = 0; queue[rear++] = 5; printf("%d", queue[rear]); return 0; } What’s the issue?

Printing uninitialized queue value

#include<stdio.h> struct Node { int data; struct Node *next; }; int main() { struct Node n1; n1.next->data = 5; return 0; } What’s the issue?

Accessing data through uninitialized pointer

#include<stdio.h> int main() { int stack[5]; int top = -1; stack[top] = 10; printf("%d", stack[top]); return 0; } What’s the issue?

Stack underflow, accessing index -1

Round 2- Syntax ShowDown

Authored by Tharun Kumar

Other

University

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25 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
int a = 5
printf("%d", a);
return 0;
}
What’s the error?

Missing semicolon after int a = 5

Missing return statement

Wrong format specifier

No error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
int num = 10;
if(num = 5)
{
printf("Equal");
}
return 0;
}
What’s the error?

if condition should use == instead of =

Missing else block

No semicolon after if

No error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
int a = 5, b = 0;
printf("%d", a/b);
return 0;
}
What’s the error?

Division by zero

Missing semicolon

Wrong format specifier

No error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
int a;
scanf("%d", a);
return 0;
}
What’s the error?

Missing & before a in scanf

Missing format specifier

Missing semicolon

No error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
char str[10] = "Hello World";
printf("%s", str);
return 0;
}
What’s the error?

String too long for array

Missing semicolon

No null character

No error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
int a = 5;
int b = 0;
if(b)
{
printf("Zero");
}
return 0;
}
What’s the error?

if(b) will never run since b = 0

Wrong if syntax

printf missing

No error

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

#include<stdio.h>
int main()
{
int x = 10;
switch(x)
{
case 10:
printf("Ten");
case 20:
printf("Twenty");
default:
printf("Other");
}
return 0;
}
What’s the error?

Missing break statements

Missing printf

Wrong switch syntax

No error

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Round 2- Syntax ShowDown

#include<stdio.h>
int main()
{
int a = 5
printf("%d", a);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int num = 10;
if(num = 5)
{
printf("Equal");
}
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a = 5, b = 0;
printf("%d", a/b);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a;
scanf("%d", a);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
char str[10] = "Hello World";
printf("%s", str);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a = 5;
int b = 0;
if(b)
{
printf("Zero");
}
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int x = 10;
switch(x)
{
case 10:
printf("Ten");
case 20:
printf("Twenty");
default:
printf("Other");
}
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int p = NULL;
printf("%d", p);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int x = 10, y = 20;
printf("%d", x+y);
printf("%d", x-y);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a = "10";
printf("%d", a);
return 0;
}
What’s the error?

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Round 2- Syntax ShowDown

#include<stdio.h> int main() { int a = 5 printf("%d", a); return 0; } What’s the error?

#include<stdio.h> int main() { int num = 10; if(num = 5) { printf("Equal"); } return 0; } What’s the error?

#include<stdio.h> int main() { int a = 5, b = 0; printf("%d", a/b); return 0; } What’s the error?

#include<stdio.h> int main() { int a; scanf("%d", a); return 0; } What’s the error?

#include<stdio.h> int main() { char str[10] = "Hello World"; printf("%s", str); return 0; } What’s the error?

#include<stdio.h> int main() { int a = 5; int b = 0; if(b) { printf("Zero"); } return 0; } What’s the error?

#include<stdio.h> int main() { int x = 10; switch(x) { case 10: printf("Ten"); case 20: printf("Twenty"); default: printf("Other"); } return 0; } What’s the error?

#include<stdio.h> int main() { int *p = NULL; printf("%d", *p); return 0; } What’s the error?

#include<stdio.h> int main() { int x = 10, y = 20; printf("%d", x+y); printf("%d", x-y); return 0; } What’s the error?

#include<stdio.h> int main() { int a = "10"; printf("%d", a); return 0; } What’s the error?

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Popular Resources on Wayground

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#include<stdio.h>
int main()
{
int a = 5
printf("%d", a);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int num = 10;
if(num = 5)
{
printf("Equal");
}
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a = 5, b = 0;
printf("%d", a/b);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a;
scanf("%d", a);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
char str[10] = "Hello World";
printf("%s", str);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a = 5;
int b = 0;
if(b)
{
printf("Zero");
}
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int x = 10;
switch(x)
{
case 10:
printf("Ten");
case 20:
printf("Twenty");
default:
printf("Other");
}
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int p = NULL;
printf("%d", p);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int x = 10, y = 20;
printf("%d", x+y);
printf("%d", x-y);
return 0;
}
What’s the error?

#include<stdio.h>
int main()
{
int a = "10";
printf("%d", a);
return 0;
}
What’s the error?