write a program in C to swap two variables
Answers were Sorted based on User's Feedback
Answer / muzammil
#include <stdio.h>
#include <conio.h>
main()
{
int a,b;
printf("Enter the values: ");
scanf("%d%d",&a,&b);
printf("The values before swapping: %d %d",a,b);
a=a-(b=(-b+(a=a+b)));
printf("The values after swapping are: %d %d",a,b);
getch();
}
Is This Answer Correct ? | 14 Yes | 3 No |
Answer / r.aruna
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,c;
clrscr();
printf("Enter the a value");
scanf("%d",&a);
printf("Enter the b value");
scanf("%d",&b);
a=a+b;
b=a-b;
a=a-b;
printf("After swapping a,b value",a,b);
getch();
}
Is This Answer Correct ? | 11 Yes | 3 No |
Answer / muzammil
Here are some LOGICS to swap two nmbrs
1) a+=b; b=a-b; a-=b;
2) a*=b; b=a/b; a/=b;
3) a=a^b; b=a^b; a=a^b;
Now Single line statements
4) a=a-(b=(-b+(a=a+b)));
5) a=a^(b=(b^(a=a^b)));
6) b=a+b-(a=b); This one was posted BY Senthil Thanks to him
7) b=a*b/(a=b); Dis is same as above one except for da
operators.
Is This Answer Correct ? | 5 Yes | 0 No |
Answer / priyamurugan
#include<stdio.h>
#include<conio.h>
main()
{
int a,b;
printf("\n BEFORE SWAPPING THE NOS");
printf("\n enter the a, b values");
scanf("%d %d",&a,&b);
swap(&a,&b);
printf("\n AFTER SWAPPING THE NOS");
printf("\n a=%d",a);
printf("\n b=%d",b);
getch();
}
swap(int *x,int *y)
{
int t;
t=*x;
*x=*y;
*y=t;
return();
}
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / srinivas
#include <stdio.h>
int main(void)
{
int a = 2, b = 5;
a = a + b;
b = a - b;
a = a - b;
printf("%d\t%d\n", a, b);
return 0;
}
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / senthil mca sns
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();
printf("Enter the a value:");
scanf("%d",&a);
printf("Enter the b value:");
scanf("%d",&b);
b=a+b-(a=b);
printf("After Swapping a=%d,b=%d",a,b);
getch();
}
Is This Answer Correct ? | 3 Yes | 2 No |
Answer / anju
#include<stdio.h>
#include<conio.h>
void main()
{
int a,b,temp;
scanf("%d%d",&a,&b);
printf("before swapping value of a=%d and b=%d",a,b);
temp=x;
x=y;
y=temp;
printf("after swapping value of a=%d and b=%d",a,b);
getch();
}
Is This Answer Correct ? | 1 Yes | 0 No |
Explain the advantages and disadvantages of macros.
Explain the difference between getch() and getche() in c?
a c variable cannot start with a) an alphabet b) a number c) a special symbol d) both b and c above
a linearly ordered set of data elements that have the same structure and whose order is preserved in storage by using sequential allocation a) circular b) ordinary c) array d) linear list
Why is #define used?
FIND THE OUTPUT IF THE INPUT IS 5 5.75 void main() { int i=1; float f=2.25; scanf("%d%f",&i,&f); printf("%d %f",,i,f); } ANSWER IS 5 AND 2.25 WHY?
Q-1: Create a structure to specify data on students given below: Roll number, Name, Department, Course, Year of joining Assume that there are not more than 450 students in the college.
Is c weakly typed?
main() { int arr[5]={23,67}; printf("%d%d%d",arr[2],arr[3],arr[4]); }
A B C D E F G F E D C B A A B C D E F F E D C B A A B C D E E D C B A A B C D D C B A A B C C B A A B B A A A
What is the hardest programming language?
write a program in c to find out the sum of digits of a number.but here is a condition that compiler sums the value from left to right....not right to left..