Tutorial 6

👉
1. Write a program that prints the following text at the terminal.

#include <stdio.h>

int main (void)

{

    printf ("* In C, lowercase letters are significant. \n");

    printf ("* main is where program execution begins.\n");

    printf ("* Opening and closing braces enclose program statements in a routine.\n");

    printf ("* All program statements must be terminated by a semicolon.\n");

return 0;

}

#include <stdio.h> int main(void) {


The program starts with including the standard input-output library and defining the main function, which is where the program execution begins.int main(void) :-

This is the beginning of the main function, which is the entry point of every C program. int is the return type of the main function, and void inside the parentheses indicates that main takes no arguments.


printf("* In C, lowercase letters are significant. \n"); 
printf("* main is where program execution begins.\n");
printf("* Opening and closing braces enclose program statements in a routine.\n"); 
printf("* All program statements must be terminated by a semicolon.\n");

The printf() function is used to print out each statement. 
The \n is used to add a newline at the end of each statement for better formatting.return 0;

This statement indicates that the main function is finished executing, and it returns 0 to the operating system, indicating successful completion of the program.

return 0; }

Finally, the main function returns 0 to the operating system, indicating successful completion of the program.

👉
2. Write a program that prints the following text at the terminal. 

i)

*

* *

* * *

* * * *

* * * * *

* * * * * *


#include<stdio.h>

int main(void)

{

int row,column;

for(row=1;row<=6;row++)

{

for(column=1;column<=row;column++)

{

printf("*");

}

printf("\n");

}

return 0;

}

This C program prints a pattern resembling a right triangle with asterisks, where the number of asterisks in each row increases from 1 in the first row to 6 in the last row. It achieves this using nested loops: the outer loop controls the number of rows, and the inner loop determines the number of asterisks to print in each row. After printing the required number of asterisks in each row, a newline character is printed to move to the next row. Thus, the result is a right triangle pattern made of asterisks.

ii)
* * * * * * *
* * * * * * *
* * * * * * *
* * * * * * *
* * * * * * *


#include<stdio.h>
int main(void)
{
int row,column;

for(row=1;row<=5;row++)
{
for(column=1;column<=7;column++)
{
printf("*");
}
printf("\n");
}
return 0;
}

This C program uses nested loops to print a rectangle made of asterisks with 5 rows and 7 columns. The outer loop iterates over each row, and the inner loop prints asterisks to form each row. After printing 7 asterisks in each row, a newline character is printed to move to the next row. The result is a rectangle composed of asterisks.

iii)

* * * * * *
* * * * *
* * * *
* * *
* *
*


#include<stdio.h>
int main(void)
{
int row,column;
for(row=6;row>=1;row--)
{
for(column=1;column<=row;column++)
{
printf("*");
}
printf("\n");
}
return 0;
}

This C program prints a pattern resembling a right triangle with asterisks, where the number of asterisks in each row decreases from 6 in the first row to 1 in the last row. It achieves this by using nested loops: the outer loop controls the number of rows, and the inner loop determines the number of asterisks to print in each row. After printing the required number of asterisks in each row, a newline character is printed to move to the next row. Thus, the result is a right triangle pattern made of asterisks.

iv)
*
* *
* * *
* * * *
* * * * *
* * * * * *

#include<stdio.h>
int main()
{
int row,column;
for(row=6;row>=1;row--)
{
for(column=1;column<=6;column++)
{
if(row>column)
{
printf(" ");
}
else
{
printf("*");
}
}
printf("\n");
}
return 0;
}

This C program prints a pattern resembling a right triangle with asterisks, where the number of asterisks in each row increases from 1 in the first row to 6 in the last row, but the asterisks are aligned to the right. It achieves this by using nested loops: the outer loop controls the number of rows, and the inner loop determines the number of characters to print in each row. Within the inner loop, there's an if-else statement that checks if the current row number is greater than the current column number. If it is, it prints a space; otherwise, it prints an asterisk. This creates the alignment effect, shifting the asterisks to the right. After printing the required number of characters in each row, a newline character is printed to move to the next row. Thus, the result is a right triangle pattern made of asterisks aligned to the right.

v)
* * * * * *
* * * * *
* * * *
* * *
* *
*

#include<stdio.h>
int main()
{
int row, column;
for (row = 1; row <= 6; row++) 
    {
        for (column = 1; column <= 6; column++) 
        {
            if (column < row) 
            {
                printf(" ");
            } 
            else 
            {
                printf("*");
            }
        }
        printf("\n");
    }
    return 0;
}

This C program prints a pattern resembling a right triangle with asterisks, but with the asterisks aligned to the right. It achieves this using nested loops: the outer loop controls the number of rows, and the inner loop determines the number of characters to print in each row. Within the inner loop, there's an if-else statement that checks if the current column number is less than the current row number. If it is, it prints a space; otherwise, it prints an asterisk. This creates the alignment effect, shifting the asterisks to the right. After printing the required number of characters in each row, a newline character is printed to move to the next row. Thus, the result is a right triangle pattern made of asterisks aligned to the right.

vi)
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

#include<stdio.h>
int main() 
{
int row, column;
for (row = 1; row <= 6; row++)
  {
        for (column = 1; column <= 6;column++) 
{
if(row>=column)
{
printf("%i",column);
}
        }
        printf("\n");
    }
    return 0;
}

This C program prints a pattern where each row consists of numbers from 1 to the row number, and the number of columns is fixed at 6. It achieves this using nested loops: the outer loop controls the number of rows, and the inner loop determines the numbers to print in each row. Within the inner loop, there's an if statement that checks if the current row number is greater than or equal to the current column number. If it is, it prints the column number. After printing the required numbers in each row, a newline character is printed to move to the next row. Thus, the result is a pattern where each row displays numbers incrementally from 1 to the row number.


👉
4. What output would you expect from the following program?

#include <stdio.h>

int main (void)

{

    printf ("Testing...");

    printf ("....1");a

    printf ("...2");

    printf ("..3");

    printf ("\n");

return 0;

}


OUTPUT =>

Testing.......1...2..3


This C program defines a main() function that sequentially prints out the strings "Testing...", "....1", "...2", and "..3" each on a separate line using the printf() function. It concludes with a newline character. The program then returns 0, indicating successful execution to the operating system.

By

Comments

Post a Comment

Popular posts from this blog

Introduction To C

Image
Dennis Ritchie C programming is considered as the base for other programming languages, that is why it is known as mother language . Because most compilers, JVMs, kernels, etc. are written in C, and because most programming languages (such C++, Java, C#, etc.) adopt C syntax, C language is regarded as the mother tongue of all current programming languages. It offers the fundamental ideas used in numerous languages, including C++, Java, C#, and others, such as the array, strings, functions, file management, etc. C programming language  was developed in 1972 by  Dennis Ritchie  at bell laboratories of AT&T (American Telephone & Telegraph), located in the U.S.A. It was developed to overcome the problems of previous languages such as B, BCPL, etc. Initially, C language was developed to be used in UNIX operating system. It inherits many features of previous languages such as B and BCPL. Let's see the programming languages that were developed before C language. Lan
Read more

First C Program

Image
Before starting the abcd of C language, you need to learn how to write, compile and run the first c program. To write the first c program, open the C console and write the following code: #include <stdio.h> :-includes the standard input output library functions. The printf() function is defined in stdio.h . int main() :-The main() function is the entry point of every program in c language. printf() :-The printf() function is used to print data on the console. return 0 :-The return 0 statement, returns execution status to the OS. The 0 value is used for successful execution and 1 for unsuccessful execution. You will see the following output on user screen.
Read more

Compilation process in c

Image
   What is a compilation?        C is a programming language that converts source code into object code or machine code. The conversion process has four steps: Pre-processing, Compiling, Assembling, and Linking.      The preprocessor eliminates all the comments from the source code and carries out the preprocessor directives. For instance, it substitutes the directive <stdio.h> with the contents of the 'stdio.h' file.       The following are the phases through which our program passes before being transformed into an executable form:         Preprocessor         Compiler         Assembler         Linker Preprocessor A source code file is a text file that contains instructions written in the C programming language. The file name has a ".c" extension to indicate its format. Before compiling the source code, a preprocessor analyzes and modifies it according to certain directives. The preprocessor then passes the expanded code to the compiler, which translates it in
Read more