TECHNICAL C PROGRAM

int main() { unsigned int i=65000; while ( i++ != 0 ); printf("%d",i); return 0; }

PREDICT THE OUTPUT OR ERROR

• 1

• 2

• 3

• SYNTAX ERROR

#include <stdio.h>

int main() {

short i;

for (i = 1; i >= 0; i++)

printf("%d\n", i);

}

STATE THE OUTPUT

• The control won’t fall into the for loop

• Numbers will be displayed until the signed limit of short and throw a runtime error

• Numbers will be displayed until the signed limit of short and program will successfully terminate

• This program will get into an infinite loop and keep printing numbers with no errors

#include <stdio.h>

void main() {

int array[30], temp[30], i, j, k, l, num; //using 2 arrays

printf("Enter the number of lines to be printed: "); scanf("%d", &num);

temp[0] = 1;

array[0] = 1;

for (j = 0; j < num; j++)

printf(" "); printf(" 1\n");

for (i = 1; i < num; i++)

{ for (j = 0; j < i; j++)

printf(" ");

for (k = 1; k < num; k++)

{ array[k] = temp[k - 1] + temp[k];

} array[i] = 1; for (l = 0; l <= i; l++)

{ printf("%3d", array[l]);

temp[l] = array[l];

} printf("\n");

}

}

• Enter the number of lines to be printed: 4

  1

  1 1

  1 2 1

  1 3 3 1

• Enter the number of lines to be printed: 4

  1

  1 1

  1 1 1

  1 1 1 1

• Enter the number of lines to be printed: 4

  *

  * *

  * * *

  * * * *

• Enter the number of lines to be printed: 4

  1

  2 2

  3 3 3

  4 4 4 4

void main() { char a = 'a'; int x = (a % 10)++; printf("%d\n", x); }

GUESS THE OUTPUT

• Grabage Value

• Compiler Error

• Output: 10

• Output: 0

#include <stdio.h>

void main() {

int k = 0;

for (k < 3; k++)

printf("Hello");

}

• Compile time error

• Hello is printed thrice

• Nothing

• Varies

#include <stdio.h>

void main()

{

double k = 0;

for (k = 0.0; k < 3.0; k++)

printf("Hello");

}

• Run time error

• Hello is printed thrice

• Hello is printed twice

• Hello is printed infinitely

#include <stdio.h>

int main() {

int i = 0;

for (; ; ;)

printf("In for loop\n");

printf("After loop\n");

}

• a) Compile time error

• b) Infinite loop

• c) After looP

• d) Undefined behaviour

#include <stdio.h>

int main() {

for (int i = 0;i < 1; i++)

printf("In for loop\n");

}

• Compile time error

• In for loop

• Depends on the standard compiler implements

• Depends on the compiler

#include <stdio.h>

void main()

{

int i = 0;

while (++i)

{

printf("H");

}

}

• H

• H is printed infinite times

• Compile time error

• Varies

#include <stdio.h>

int main() {

int a = 1, b = 1, d = 1;

printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);

}

• 15, 4, 5

• 9, 6, 9

• 9, 3, 5

• Undefined (Compiler Dependent)