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lab12bonustask.c

+#include <stdio.h>
+#include <math.h>
+#include <string.h>
+
+
+void meanPoint(float matrix[5][3], float lenghts[3]);
+void fromPointsToMean(float matrix[5][3], float lenghts[3], float leng[5][3]);
+void Distance(float leng[5][3], float distances[5]);
+void bubbleSort(float distances[5], int index[5]);
+
+int main(){
+	
+	float matrix[5][3] = {
+		{1, 3.1, 21},
+		{2, -3.2, 23},
+		{2.3, 12.8, 2},
+		{2, 1.4, -23},
+		{12, 2, -2.3}
+	};
+	int i, j;
+	float lenghts[3] = {0};
+	float leng[5][3];
+	float distances[5] = {0};
+	int var;
+	int index[5];
+	
+	for(i = 0; i < 5; i++){
+		index[i] = i;
+	}
+	
+	meanPoint(matrix, lenghts);
+	printf("The mean of point of this crap is: " );
+	
+	for(j = 0; j < 3; j++){
+		printf("%f, ", lenghts[j]);
+	}
+	printf("\n");
+	
+	fromPointsToMean(matrix, lenghts, leng);
+	printf("the point from mean:\n");
+	
+	for(i = 0; i < 5; i++){
+		for(j = 0; j < 3; j++){
+			printf("%f, ", leng[i][j]);
+		}
+		printf("\n");
+	}
+	
+	printf("\nThe distaces from mean point to the other point lol:\n");
+	
+	Distance(leng, distances);
+	
+	for(i = 0; i < 5; i++){
+		printf("%f\n", distances[i]);
+	}
+	
+	
+	printf("\nThe same distaces but in order lol:\n");
+	bubbleSort(distances, index);
+	
+	for(i = 0; i < 5; i++){
+		var = index[i];
+		for(j = 0; j < 3; j++){
+			printf("%f ", matrix[var][j]);
+		}
+		printf("\n");
+	}
+	
+	
+	return 0;
+}
+	
+void meanPoint(float matrix[5][3], float lenghts[3]){
+	
+	int i, j;
+	float len[3] = {0};
+	
+	for(j = 0; j < 3; j++){
+		for(i = 0; i < 5; i++){
+			len[j] += matrix[i][j];
+		}
+		lenghts[j] = len[j] / 5;
+	}
+}
+
+void fromPointsToMean(float matrix[5][3], float lenghts[3], float leng[5][3]){
+	
+	int i, j;
+	
+	for(i = 0; i < 5; i++){
+		for(j = 0; j < 3; j++){
+			leng[i][j] = matrix[i][j] - lenghts[j];
+		}
+	}
+}
+
+void Distance(float leng[5][3], float distances[5]){
+	
+	int i, j;
+	int x = 0;
+	float sumOfSquares = 0;
+	
+	for(i = 0; i < 5; i++){
+		for(j = 0; j < 3; j++){
+			sumOfSquares += pow(leng[i][j], 2);
+		}
+		distances[x] = sqrt(sumOfSquares);
+		x++;
+		sumOfSquares = 0;
+	}
+}
+
+void bubbleSort(float distances[5], int index[5]){
+	
+	int i, j, tmp, swap;
+	
+	for(i = 0; i < 5; i++){
+		for(j = i + 1; j < 5; j++){
+			if(distances[i] > distances[j]){
+				tmp = distances[i];
+				distances[i] = distances[j];
+				distances[j] = tmp;
+				swap = index[i];
+				index[i] = index[j];
+				index[j] = swap;
+			}
+		}
+	}
+}