Important patterns for IPLC Practical exam with solution

1)Write a program to print following pyramid.
 *
 * *
 * * *
 * * * *
Ans :

#include<stdio.h>
#include<conio.h>
void main()
{
int num,row,col,space;
clrscr();
printf("Enter a num = ");
scanf("%d",&num);
for(row=1;row<num;row++)
{
for(space=num-1;space>row;space--)
{ printf(" "); }

for(col=1;col<=row;col++)
{
printf(" *");
}
printf("\n");
}
        gotoxy(60,20);     //this is optional part
printf("By Aaftab");//this is optional part
        getch();

}


2)Write a program that accepts an integer N, if the integer N = 4,then print the pyramid :
 1
 121
 12321
 1234321
Ans :
#include<stdio.h>
#include<conio.h>
void main()
{
int row,col,k,num,a,b,c;
clrscr();
printf("Enter a num = ");
scanf("%d",&num);
for(row=1;row<num;row++)
{
for(col=1;col<=row;col++)
{
printf("%d",col);
}
for(k=row-1;k!=0;k--)
{
printf("%d",k);
}
printf("\n");
}
        gotoxy(60,20);     //this is optional part
printf("By Aaftab");//this is optional part
        getch();

}

3) Write a program that accepts an integer N, if the integer N =4,then print the pyramid :
4 4 4 4
3 3 3
2 2
1
Ans :

#include<stdio.h>
#include<conio.h>
void main()
{
int row,col,no;
clrscr();
printf("Enter a num =");
scanf("%d",&no);
for(row=no;row>0;row--)
{
for(col=1;col<=row;col++)
{
printf("%d",row);
}
printf("\n");
}
        gotoxy(60,20);     //this is optional part
printf("By Aaftab");//this is optional part
        getch();

}
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4) Write a program to Print following:
A
B C
D E F
G H I J
Ans :

#include<stdio.h>
#include<conio.h>
void main()
{
char ch='A';
int row,col,no;
clrscr();
printf("Enter a num =");
scanf("%d",&no);
for(row=1;row<=no;row++)
{
for(col=1;col<=row;col++)
{
printf("%c",ch);
ch++;
}
printf("\n");
}
        gotoxy(60,20);     //this is optional part
printf("By Aaftab");//this is optional part
        getch();

}
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5) Write a program to Print following:
1
0 1
1 0 1
0 1 0 1
1 0 1 0 1
Ans :
#include<stdio.h>
#include<conio.h>
void main()
{
int i, j=1, rows,rem;
clrscr();
printf("Enter the number of rows = ");
scanf("%d", &rows);
for (i = 1; i <= rows; i++)
{
j=1;
for(; j <= i; j++)
{
rem=j%2;
printf("%d", rem);
}
printf("\n");
}
        gotoxy(60,20);     //this is optional part
printf("By Aaftab");//this is optional part
        getch();

}

6) Write a program to Print following:
A
ABA
ABCBA
ABCDCBA
Ans :

#include<stdio.h>
#include<conio.h>
int main()
{
    int i,j,k,m,rows,ch='A';
    clrscr();
    printf("Enter the number of rows =");
    scanf("%d",&rows);
    for(i=1; i<=rows; i++)
    {

    for(k=1; k<=i; k++)
    {
printf("%c",ch++);
    }
    ch--;
    for(m=1; m<i; m++)
    {
printf("%c",--ch);
    }
    printf("\n");
    }
        gotoxy(60,20);     //this is optional part
printf("By Aaftab");//this is optional part
        getch();

}

Click Here to Download c file

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