/* slip no : 6_1 Write a C++
program to create a class which contains two dimensional integer array of size
mXn. Write a member function to display sum of all elements of entered matrix.
(Use Dynamic Constructor for allocating memory and Destructor to free memory of
an object) */
#include<conio.h>
#include<iostream.h>
main()
{
int
r,c,sum=0;
clrscr();
cout<<"\n
Enter dimension ";
cin>>r;
cin>>c;
int
**a;
a=new
int*[r];//[s];
for(int
i=0;i<r;i++)
{ a[i]=new
int[c];
}
for(i=0;i<r;i++)
{
for(int
j=0;j<c;j++)
{
cout<<"\n
enter data : ";
cin>>a[i][j];
}
}
for(i=0;i<r;i++)
{
for(int
j=0;j<c;j++)
{
cout<<"\t"<<a[i][j];
}
cout<<endl;
}
for(i=0;i<r;i++)
{
for(int
j=0;j<c;j++)
{
sum=sum+a[i][j];
}
}
cout<<"\n
sum of all elements of matrix : "<<sum;
getch();
}
/* Slip no : 6_2 Create a class
Time which contains data members as: Hours, Minutes and Seconds. Write C++
program to perform following necessary member functions:
To read time
To display time in format like:
hh:mm:ss
To add two different times (Use
Objects as argument) */
#include<iostream.h>
#include<conio.h>
class Time
{
int
hr,min,sec;
public:
void
settime(int x,int y,int z)
{ hr=x;
min=y;
sec=z;
}
void
showtime()
{ cout<<"\n"<<hr<<":"<<min<<":"<<sec<<endl;
}
Time
add(Time t)
{
Time
t1;
t1.sec=sec+t.sec;
t1.min=t1.sec/60;
t1.sec=t1.sec%60;
t1.min=t1.min+min+t.min;
t1.hr=t1.min/60;
t1.min=t1.min%60;
t1.hr=t1.hr+hr+t.hr;
return
t1;
}
};
void main()
{
int
h,m,s;
cout<<"\n
Enter hr:\t";
cin>>h;
cout<<"\n
Enter min:\t";
cin>>m;
cout<<"\n
Enter sec:\t";
cin>>s;
Time
t1;
t1.settime(h,m,s);
t1.showtime();
Time
t2;
cout<<"\n
Enter hr:\t";
cin>>h;
cout<<"\n
Enter min:\t";
cin>>m;
cout<<"\n
Enter sec:\t";
cin>>s;
t2.settime(h,m,s);
t2.showtime();
Time
t3;
cout<<"\t
Addition of 2 times : ";
t3=t1.add(t2);
t3.showtime();
getch();
}
slip 6
![slip 6]()
Reviewed by Dinesh Varal
on
January 16, 2018
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