Code Snipers(Preliminary Round)- Questions
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//Functions
1)
void main()
{
m();
void m()
{
printf("hi");
}
}
//pointers
2)
#include<stdio.h>
int main()
{
int *x;
*x=100;
return 0;
}
3)
#include<stdio.h>
int main()
{
int a[] = {10, 20, 30, 40, 50};
int j;
for(j=0; j<5; j++)
{
printf("%d\n", a);
a++;
}
return 0;
}
//Structure and unions
4)
struct emp
{
int ecode;
struct emp *e;
};
5)
typedef struct data mystruct;
struct data
{
int x;
mystruct *b;
};
6)
#include<stdio.h>
int main()
{
struct a
{
float category:5;
char scheme:4;
};
printf("size=%d", sizeof(struct a));
return 0;
}
7)
struct emp
{
int ecode;
struct emp e;
};
8)
#include<stdio.h>
int main()
{
struct emp
{
char name[25];
int age;
float bs;
};
struct emp e;
e.name = "Suresh";
e.age = 25;
printf("%s %d\n", e.name, e.age);
return 0;
}
9)
#include<stdio.h>
#include<string.h>
void modify(struct emp*);
struct emp
{
char name[20];
int age;
};
int main()
{
struct emp e = {"Sanjay", 35};
modify(&e);
printf("%s %d", e.name, e.age);
return 0;
}
void modify(struct emp *p)
{
p ->age=p->age+2;
}
10)
#include<stdio.h>
int main()
{
struct bits
{
int i:40;
}bit;
printf("%d\n", sizeof(bit));
return 0;
}
//Array
11)
#include<stdio.h>
void fun(int *p[][4]);
int main()
{
int a[3][4];
fun(a);
return 0;
}
12)
#include<stdio.h>
int main()
{
int size, i;
scanf("%d", &size);
int arr[size];
for(i=1; i<=size; i++)
{
scanf("%d", arr[i]);
printf("%d", arr[i]);
}
return 0;
}
What is the output of the following(13-17)
13)
#include<stdio.h>
#include<string.h>
int main()
{
char str1[20] = "Hello", str2[20] = " World";
printf("%s\n", strcpy(str2, strcat(str1, str2)));
return 0;
}
14)
#include<stdio.h>
int main()
{
char p[] = "%d\n";
p[1] = 'c';
printf(p, 65);
return 0;
}
15)
#include<stdio.h>
#include<string.h>
int main()
{
printf("%d\n", strlen("123456"));
return 0;
}
16)
#include<stdio.h>
int main()
{
printf(5+"Good Morning\n");
return 0;
}
17)
#include<stdio.h>
#include<string.h>
int main()
{
char str[] = "tce\0\cse\0";
printf("%s\n", str);
return 0;
}
//Constructors and Destructors
18)
#include<iostream.h>
class CSE
{
int x;
public:
CSE(int xx, float yy)
{
cout<< char(int(y)y);
}
};
int main()
{
CSE *p = new CSE(35, 99.50f);
return 0;
}
19)
#include<iostream.h>
class cse
{
int x;
public:
cse();
cse();
void const Show() ;
};
cse:cse()
{
x = 25;
}
void cse:Show() const
{
cout<< x;
}
int main()
{
cse objB;
objB.Show();
return 0;
}
20)To ensure that every object in the array receives a destructor call,
always delete memory allocated as an array with operator __________ .
//object and class
21)
#include<iostream.h>
class cse
{
public:
int x;
};
int main()
{
cse *p = new cse();
(*p).x = 10;
cout<< (*p).x << " " << p.x << " " ;
p->x = 20;
cout<< (*p).x << " " << p.x ;
return 0;
}
22)
#include<iostream.h>
class cse
{
static int x;
public:
static void SetData(int xx)
{
x = xx;
}
void Display()
{
cout<< x ;
}
};
int cse::x = 0;
int main()
{
cse::SetData(33);
cse::Display();
return 0;
}
23)
#include<iostream.h>
class cse
{
static int x;
public:
static void SetData(int xx)
{
x = xx;
}
static void Display()
{
cout<< x ;
}
};
int cse::x = 0;
int main()
{
cse::SetData(44);
cse::Display();
return 0;
}
//References
24)
#include<iostream.h>
int main()
{
int x = 80;
int y& = x;
x++;
cout << x << " " << --y;
return 0;
}
25)
#include<iostream.h>
int main()
{
int x;
int &y = x;
x++;
cout << x << " " << --y;
return 0;
}
26)
#include<iostream.h>
int main()
{
int *x = 10;
int *y = &x;
x++;
cout<< x << " " << y++;
return 0;
}
27)
#include<iostream.h>
int main()
{
int x = 10;
int y = x;
x = 25;
y = 50;
cout<< x << " " << --y;
return 0;
}
//Memory Allocation
28)
#include<stdio.h>
#include<stdlib.h>
int main()
{
int *a[3];
a = (int*) malloc(sizeof(int)*3);
free(a);
return 0;
}
29)
#include<stdio.h>
#include<stdlib.h>
int main()
{
char *ptr;
*ptr = (char)malloc(30);
strcpy(ptr, "RAM");
printf("%s", ptr);
free(ptr);
return 0;
}
//bonus question
30)
#include <iostream>
int main()
{
int h;
cout>>hy;
cin<<h;
return char(h);
}
