92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
#include "tools.h"
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FILE * getFile(void) {
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char filename[50];
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printf("Enter file name: ");
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if (scanf("%s", filename) == 1) {
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FILE * file = fopen(filename, "r");
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if (file == NULL) {
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printf("Error file!\n)");
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return NULL;
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} else {
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return file;
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}
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} else {
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printf("Empty name!\n");
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return NULL;
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}
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}
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double * getArray(FILE * file) {
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int i, size = 2;
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double * array = NULL;
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double current;
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if (fscanf(file, "%lf", ¤t) != 1) {
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printf("File if empty!");
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return array;
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}
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array = (double *)malloc(size * sizeof(double));
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i = 1;
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do {
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if (i >= size) {
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size *= 2;
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array = (double *)realloc(array, sizeof(double) * size);
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}
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array[i] = current;
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++i;
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} while (fscanf(file, "%lf", ¤t) == 1);
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array = (double *)realloc(array, sizeof(double) * i);
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array[0] = (double)i;
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return array;
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}
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bool orderliness(double * array, int length) {
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for (int i = 1; i < length; ++i) if ((array[i] - array[i - 1]) < exp) return false;
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return true;
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}
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void randomArray(void) {
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int length;
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printf("Enter length of array: ");
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if (scanf("%d", &length) == 1) {
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double * array = (double *)malloc(length * sizeof(double));
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generate(array, length);
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printArray(array, length);
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printf("\n");
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sort(array, length);
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printf("\n");
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printArray(array, length);
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free(array);
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} else {
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printf("Length not entered!\n");
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}
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}
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void generate(double * array, int length) {
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srand(time(NULL));
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for (int i = 0; i < length; ++i) {
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array[i] = 1.*rand() / (1. + rand()) * 1000;
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}
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}
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void printArray(double * array, int length) {
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length = (length > 10) ? 10 : length;
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for (int i = 0; i < length; ++i) {
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printf("%.2lf ", array[i]);
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}
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printf("\n");
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}
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