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Lab12/Task1.c

+#include <stdio.h>
+#include <math.h>
+#define NoOfDimensions 2
+void distancesf(float points[5][3], float distances[10]);
+void MeanPointf(float points[5][3], float MeanPoint[3]);
+float AvgDist(float points[5][3], float MeanPoint[3], float MeanDist[5], int PointNumber[5]);
+int main()
+{
+	int i, j, swap, PointNumber[5];
+	float MeanPoint[3];
+	float MeanDist[5];
+	float points[5][3] = {{1, 3.1, 2.1},
+						  {2, -3.2, 23},
+						  {2.3, 12.8, 2},
+						  {2, 1.4, -23},
+						  {12, 2, -2.3}};
+	float distances[10];
+	distancesf(points, distances);
+	for (i = 0; i < 10; i++)
+	{
+		printf("%.2f\n", distances[i]);
+	}
+	float MinDist = distances[0];
+	for (i = 1; i < 10; i++)
+	{
+		if (distances[i] < MinDist)
+		{
+			MinDist = distances[i];
+		}
+	}
+	MeanPointf(points, MeanPoint);
+	printf("Min Dist is :\t%.2f", MinDist);
+	printf("\nMean point is:\t");
+	for (i = 0; i < 3; i++)
+	{
+		printf("%.2f  ", MeanPoint[i]);
+	}
+
+	printf("\nAverage distance to mean point is:\t%.2f\n", AvgDist(points, MeanPoint, MeanDist, PointNumber));
+
+	for (i = 0; i < 5; i++)
+	{
+		for (j = 0; j < 4; j++)
+		{
+			if (MeanDist[j] > MeanDist[j + 1])
+			{
+				swap = MeanDist[j];
+				MeanDist[j] = MeanDist[j + 1];
+				MeanDist[j + 1] = swap;
+			}
+		}
+	}
+	printf("from lowest to biggest distance to the mean point:\n");
+	for (i = 0; i < 5; i++)
+	{
+		printf("point %d:\t%.2f\n", PointNumber[i], MeanDist[i]);
+	}
+}
+
+void distancesf(float points[5][3], float distances[10])
+{
+	int N = 0;
+	int k = 0;
+	int i, j, h;
+	float x = 0;
+
+	for (j = 0; j < 5; j++)
+	{
+		N++;
+		for (i = N; i < 5; i++)
+		{
+			for (h = 0; h < NoOfDimensions; h++)
+			{
+				x += pow((points[i][h] - points[j][h]), 2);
+			}
+			distances[k] = pow(x, 0.5);
+			k++;
+		}
+	}
+}
+
+void MeanPointf(float points[5][3], float MeanPoint[3])
+{
+	int i;
+	float SumX = 0, SumY = 0, SumZ = 0;
+	for (i = 0; i < 5; i++)
+	{
+		SumX += points[i][0];
+		SumY += points[i][1];
+		SumZ += points[i][2];
+	}
+	MeanPoint[0] = (SumX / 5);
+	MeanPoint[1] = (SumY / 5);
+	MeanPoint[2] = (SumY / 5);
+}
+
+float AvgDist(float points[5][3], float MeanPoint[3], float MeanDist[5], int PointNumber[5])
+{
+	float answer;
+	float SumDist = 0;
+	int i;
+	for (i = 0; i < 5; i++)
+	{
+		MeanDist[i] = pow((pow(MeanPoint[0] - points[i][0], 2) + pow(MeanPoint[1] - points[i][1], 2) + pow(MeanPoint[1] - points[i][2], 2)), 0.5);
+		SumDist += MeanDist[i];
+		PointNumber[i] = (i + 1);
+	}
+	answer = (SumDist / 5);
+	return answer;
+}