luc063.c

Metadata

• Author — Amit Dutta
• Last updated — 08 Feb 2026
• License — MIT License (See the LICENSE file for details)

Problem Statement

Problem Statement

The X and Y coordinates of 10 different points are entered through the keyboard. Write a program to find the distance of last point from the first point (sum of distances between consecutive points).

Source Code

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#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main()
{
    double x[10], y[10];
    double total_distance = 0.0;
    int i;

    printf("Enter coordinates (x, y) for 10 points:\n");
    for (i = 0; i < 10; i++)
    {
        printf("Point %d: ", i + 1);
        scanf("%lf %lf", &x[i], &y[i]);
    }

    // Sum of distances between consecutive points P(i) and P(i+1)
    for (i = 0; i < 9; i++)
    {
        double dx = x[i+1] - x[i];
        double dy = y[i+1] - y[i];
        total_distance += sqrt(dx*dx + dy*dy);
    }

    printf("\nTotal distance from first to last point: %.2f\n", total_distance);

    return 0;
}