p1final.c

/*
. Write a program to find the distance between two points
void input(float *x1, float *y1, float *x2, float *y2);
void find_distance(float x1, float y1, float x2, float y2, float *area);
void output(float x1, float y1,float x2, float y2, float area);
input:
1 1 2 2
output:
the distance between point (1.000000,1.000000) and (2.000000,2.000000) is with 1.4142
*/
#include <stdio.h>
#include <math.h>

void input(float* x1, float* y1, float* x2, float* y2)
{
    printf("Enter the two points:\n");
    scanf("%f%f%f%f", x1, y1, x2, y2);
}

float find_distance(float x1, float y1, float x2, float y2)
{
    return sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
}

void output(float x1, float y1, float x2, float y2, float distance)
{
    printf("The distance b/w (%f,%f) and (%f, %f) is %f\n", x1, y1, x2, y2, distance);
}

int main()
{
    float x1, y1, x2, y2, dist;
    input(&x1, &y1, &x2, &y2);
    dist = find_distance(x1, y1, x2, y2);
    output(x1, y1, x2, y2, dist);
    return 0;
}