1. Write a C program to generate Pascal's triangle.
Ans:
#include<stdio.h> long
factorial(int); int main()
{
int i, n, c;
printf("How many rows you want
to show in pascal triangle?\n");
scanf("%d",&n);
for ( i = 0 ; i < n ; i++ )
{
for
( c = 0 ; c <= ( n i 2 ) ; c++ ) printf(" ");
for( c = 0 ; c <= i ; c++ )
printf("%ld
",factorial(i)/(factorial(c)*factorial(ic))); printf("\n");
}
return 0;
}
long factorial(int n)
{
int c;
long result = 1;
for( c = 1 ; c <= n ; c++ ) result = result*c; return (
result );
}
2.
Write a C Program to find the surface area and the volume of a sphere. (Surface Area = 4 π r2 and Volume = 4/ 3 π r3 )
#include <stdio.h>
#include <math.h>
intmain()
{
floatradius; floatsurface_area,volume;
printf("Enter
radius of the sphere :
\n"); scanf("%f",&radius);
surface_area =4*(22/7)*radius
*radius; volume =(4.0/3)*(22/7)*radius
*radius
*radius;
printf("Surface
area of sphere is: %.3f",surface_area); printf("\nVolume
of sphere is : %.3f",volume); return0;
}
3.
Write a C program to find whether the given matrix is symmetric or not.
Ans:
#include<conio.h>
#include<stdio.h>
void main()
{
int
a[10][10],i,j,m; clrscr();
printf("Enter
order of square matrix: "); scanf("%d",&m);
for(i=1;i<=m;i++)
{
for(j=1;j<=m;j++)
{
printf("Enter
value of a[%d][%d]: ",i,j); scanf("%d",&a[i][j]);
}
}
for(i=1;i<=m;i++)
{
for(j=1;j<=m;j++)
{
if(a[i][j]!=a[j][i])
{
printf("\n\nMatrix
is not symmetric"); getch();
exit(0);
}
}
}
printf("\n\nMatrix
is symmetric"); getch();
}
4.
Write a interactive C program to create records of 15 students, where each record has fields name, rollno, GPA and fees. Write a function calcfee ( ) to reduce the fees of those students who have obtained GPA greater than 9.0 by 25% of the original fees, 10% fee concession if GPA is between 8.0 and 8.9 and 5% concession if the GPA is between 7.5 and 7.9. Display all the records before and after updation.
#include<stdio.h>
#define SIZE 50
struct student
{
char
name[30]; int rollno;
int gpa,fee;
};
void calcfee(struct student st[])
{
for (i = 0; i < n; i++)
{
if(st[i].gpa>=9.0)
st[i].fee=st[i].fee(st[i].fee*0.25);
else if(s[i]t.gpa<=8.9 && st[i].gpa<8.0)
{
St[i].fee=st[i].fee(st[i].fee*0.05);
printf("Total Fee=%d",st[i].fee); printf("roll no=%d",
&st[i].rollno);
}
}
}
void main()
{
int i, j, max, count, total, n,
a[SIZE], ni;
struct
student st; clrscr();
printf("Enter
how many students: "); scanf("%d", &n);
for (i = 0; i < n; i++)
{
printf("\nEnter
details name, rollno,gpa,fee"); scanf("%s", &st[i].name);
scanf("%d",
&st[i].rollno); scanf("%d", &st[i].gpa);
scanf("%d", &st[i].fee);
}
Printf(“\nPrint
Before update\n”) for (i = 0; i < n; i++)
{
printf("roll
no=%d", &st[i].rollno); printf (“GPA=%d", &st[i].gpa);
printf("GPA=%d",
&st[i].gpa); printf("fee=%d", &st[i].fee); calcfee(st[i]);
}
Printf(update data:\n”) getch();
}
5.
Using pointers, write a function that receives a string and a character as argument. Delete all occurrences of this character in the string. The function should return corrected string with no holes/spaces.
Ans:
#include<stdio.h>
#include<conio.h>
#include<string.h>
void
del(char str[], char ch);
void main()
{ char str[10]; char ch;
printf("\nEnter
the string : "); gets(str);
printf("\nEnter
character which you want to delete : "); scanf("%ch", &ch);
del(str,
ch); getch();
}
void del(char str[], char ch) { int i, j = 0;
int
size; char ch1; char str1[10];
size = strlen(str);
for (i = 0; i < size; i++) { if (str[i] != ch) {
ch1 = str[i]; str1[j] = ch1;
j++;
}
}
str1[j] = '\0';
printf("\n corrected string is
: %s", str1);
}
6.
Define a structure that describes a hotel. It should have members that include the name, address, star(5 star, 3 star or 2 star), average room charge and number of rooms. Write a function to perform the following operations:
(i) To print out hotels of a given grade in order of charges.
(ii) To print out hotels with room charges less than a given value.
Ans:
#include <stdio.h> struct hotel
{
char name[20]; char add[20]; int grade;
int arc; int rooms; };
void output(); void out();
struct hotel inn[]={
{"PLAZA","G99,DELHI",3,4500,50},
{"MYUR","E45,NOIDA",4,5000,100}, {"RAJDOOT","H44,DELHI",2,4000,50},
{"SAMRATH","B75,BOMBAY",5,6000,200},
{"SURYA","A77,NOIDA",1,3500,150}
};
void main()
{
int go; clrscr();
printf("Enter 1 for grade search\n");
printf("Enter 2 to search by charge:");
scanf("%d",&go);
switch(go)
{
case 1: output(); break;
case 2: out(); break;
default:printf("Wrong input"); break;
}
getch();
}
void output()
{
int gr,i;
printf("Enter Grade 1 to 5:");
scanf("%d",&gr); if(gr>=1||gr<=5)
{
for(i=0;i<=4;i++)
{
if(inn[i].grade==gr)
printf("Hotel Name: %s\nAddress:%s\nGrade:%d\nAverage Room
charge:%d\n\ Number of
Rooms:%d",inn[i].name,inn[i].add,inn[i].grade,inn[i].arc,inn[i].rooms);
}
}
else
printf("Wrong grade input!");
}
void out()
{
int ch,i=0;
printf("Enter the Room charges not greater than
6000:"); scanf("%d",&ch);
while(i<5)
{
if(inn[i].arc<ch)
printf("Hotel Name: %s\nAddress:%s\nGrade:%d\nAverage Room
charge:%d\n\ Number of Rooms:%d\n",inn[i].name,inn[i].add,inn[i].grade,inn[i].arc,inn[i].rooms);
i++;
}}
7. Write an interactive C program which copies one file to another.
Ans:
#include<stdio.h>
void main()
{
char
x; FILE *p,*y; clrscr();
p=fopen("abc.txt","r");
y=fopen("xyz.txt","w");
do
{
x=fgetc(p);
putchar(x);
fputc(x,y);
}while(x!=eof());
getch();
}
8. Write an interactive C program to reverse the first n characters in a file. (Note: The file name and n are to be specified on the command line.)
Note: You must execute the program and submit the program logic, sample input and output along with the necessary documentation for these practical questions. Assumptions can be made wherever necessary.
Ans:
#include <stdio.h> #include <conio.h> #include
<string.h> #include <process.h>
void main(int argc, char *argv[])
{
char a[15]; char
s[20]; char n;
int k; int j=0; int i; int len;
FILE *fp;
if(argc!=3)
{
puts("Improper number of arguments."); exit(0);
}
fp = fopen(argv[1],"r"); if(fp == NULL)
{
puts("File cannot be opened."); exit(0);
}
k=*argv[2]48;
n = fread(a,1,k,fp); a[n]='\0'; len=strlen(a);
for(i=len1;i>=0;i)
{
s[j]=a[i];
printf("%c",s[j]);
j=j+1;
}
s[j+1]='\0';
getch();
}
***********************END OF ASSIGNMENT*******************
-----------------------------------------------------------------------------------------
Assignment Solution on process | IGNOU BCA MCA Solved Assignment 2016 2017 Join IGNOU BCA MCA Coaching Class | Synopsis & Project Support
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Assignment Solution on process | IGNOU BCA MCA Solved Assignment 2016 2017 Join IGNOU BCA MCA Coaching Class | Synopsis & Project Support
Powered by IGNOUFriend | www.ignoufriend.co.in |
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