C Practice Questions and Answers - Part - 1

Q1.What is output of following program?
Source Code->

#include <stdio.h>

#include<conio.h>
void main()
{
clrscr();
for (int i=0;i<5;i++)
{
for (int j=i;j<=8;j++)
printf("*");
printf("\n");
}
getch();
}

Cross-check your answer with this ->
*********
********
*******
******
*****

---

Q2.What is output of following program?
Source Code->

#include<stdio.h>
#include<conio.h>
void main()
{
int h=9;
float x,y;
clrscr();
x=(float)h*0.7;
y=h*0.7;
printf("Value of x : %f",x);
printf("\nValue of y : %f",y);
printf("\nValue of h : %f",(float)h*0.6);
getch();
}

Cross-check your answer with this ->

Value of x : 6.300000
Value of y : 6.300000
Value of h : 5.400000

---

Q3.What is output of following program?
Source Code->

#include <stdio.h>

#include<conio.h>

void main()

{

for ( int i=0; i<5; i++)

{

 for (int j=4-i; j>0; j--)

 printf(" ");

 for (j=0; j<=i; j++)

 printf("*");

 printf("\n");

 }

getch();

 }

Cross-check your answer with this ->

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

---

Q4.What is output of following program?

Source Code->

#include <stdio.h>

#include<conio.h>

void main()

{

clrscr();

for ( int i=5; i>0; i--)

{

 for (int j=i; j>0; j--)

 printf(" ");

 for (j=0; j<i; j++)

 printf("*");

 printf("\n");

 }

 getch();

 }

Cross-check your answer with this ->

      *****
    ****
   ***
  **
 *

      

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