commit 2425721cf91be54df0c8dd453136d5bfd0341d48
parent 0d8935a6a3865e72f81644d6eb069fc3ff9efb4f
Author: Christos Margiolis <christos@margiolis.net>
Date: Wed, 8 Jan 2020 22:10:42 +0200
initial commmit
Diffstat:
4 files changed, 286 insertions(+), 0 deletions(-)
diff --git a/assignment-1.5-arrays-pointers-files/combinations/Makefile b/assignment-1.5-arrays-pointers-files/combinations/Makefile
@@ -0,0 +1,31 @@
+EXEC = combs
+
+SRC_DIR = src
+OBJ_DIR = obj
+
+SRC = $(wildcard $(SRC_DIR)/*.c)
+OBJ = $(SRC:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)
+
+MKDIR_P = mkdir -p
+
+CPPFLAGS += -Iinclude
+CFLAGS += -Wall
+LDFLAGS += -Llib
+LDLIBS += -lm
+
+.PHONY: all clean
+
+all: $(EXEC)
+
+$(EXEC): $(OBJ)
+ $(CC) $(LDFLAGS) $^ $(LDLIBS) -o $@
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
+ $(MKDIR_P) $(OBJ_DIR)
+ $(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
+
+run:
+ ./$(EXEC)
+
+clean:
+ $(RM) $(OBJ) $(EXEC)+
\ No newline at end of file
diff --git a/assignment-1.5-arrays-pointers-files/combinations/include/combinations.h b/assignment-1.5-arrays-pointers-files/combinations/include/combinations.h
@@ -0,0 +1,29 @@
+#ifndef COMBINATIONS_H
+#define COMBINATIONS_H
+
+#include <stdbool.h>
+
+int get_n(const char *);
+int combinations_count(int);
+int factorial(int);
+int sum_calc();
+int sum_comb_calc();
+int even_calc();
+int not_printed();
+
+int *fill_array(int);
+
+float frequency();
+
+char *get_filename();
+
+bool exists_in_array(int *, int, int);
+bool is_subset();
+
+void x_pair(int *, int *);
+void y_pair(int *, int *);
+void combinations(int *);
+void print_combs();
+void read_file();
+
+#endif
diff --git a/assignment-1.5-arrays-pointers-files/combinations/src/combinations.c b/assignment-1.5-arrays-pointers-files/combinations/src/combinations.c
@@ -0,0 +1,201 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include "combinations.h"
+
+#define COMBSN 6
+
+
+int get_n(const char *varName)
+{
+ int num;
+
+ do
+ {
+ printf("%s (6 < N <= 49): ", varName);
+ scanf("%d", &num);
+ } while (num <= 6 || num > 49);
+
+ return num;
+}
+
+
+int *fill_array(int N)
+{
+ int *arr, num, i = 0;
+
+ arr = (int *)malloc(N * sizeof(int));
+
+ if (arr == NULL)
+ {
+ printf("Not enough memory, error.\n");
+ exit(1);
+ }
+ else
+ {
+ do
+ {
+ printf("arr[%d]: ", i);
+ scanf("%d", &num);
+
+ if (num >= 1 && num <= 49)
+ {
+ if (i == 0)
+ {
+ *(arr + i) = num;
+ i++;
+ }
+ else
+ {
+ if (!exists_in_array(arr, N, num))
+ {
+ *(arr + i) = num;
+ i++;
+ }
+ else
+ printf("Give a different number.\n");
+ }
+ }
+ else
+ printf("Give a number in [1, 49].\n");
+
+ } while (i < N);
+ }
+
+ return arr;
+}
+
+
+bool exists_in_array(int *arr, int N, int num)
+{
+ int *arrEnd = arr + N - 1;
+
+ while (arr <= arrEnd && *arr != num)
+ arr++;
+
+ if (arr <= arrEnd)
+ return true;
+ else
+ return false;
+}
+
+
+void x_pair(int *x1, int *x2)
+{
+ do
+ {
+ printf("x1: ");
+ scanf("%d", x1);
+ printf("x2: ");
+ scanf("%d", x2);
+ } while (*x1 < 0 || *x1 > *x2 || *x2 > 6); // 0 ≤ Χ1 ≤ Χ2 ≤ 6
+}
+
+
+void y_pair(int *y1, int *y2)
+{
+ do
+ {
+ printf("y1: ");
+ scanf("%d", y1);
+ printf("y2: ");
+ scanf("%d", y2);
+ } while (*y1 < 21 || *y1 > *y2 || *y2 > 279); // 21 ≤ Υ1 ≤ Υ2 ≤ 279
+}
+
+
+void combinations(int *arr)
+{
+ int i, j, temp;
+
+ for (i = 1; i <= COMBSN; i++)
+ {
+ for (j = 0; j < COMBSN-1; j++)
+ {
+ temp = *(arr + j);
+ *(arr + j) = *(arr + j + 1);
+ *(arr + j + 1) = temp;
+ }
+ }
+}
+
+
+int find_even()
+{
+
+}
+
+
+int even_calc()
+{
+
+}
+
+
+int sum_calc()
+{
+
+}
+
+
+void print_combs()
+{
+
+}
+
+
+int combinations_count(int N)
+{
+ int numCombinations;
+
+ numCombinations = factorial(N) / (factorial(6) * factorial(N - 6));
+
+ return numCombinations;
+}
+
+
+int factorial(int num)
+{
+ int i, fac;
+
+ for (i = 1, fac = 1; i <= num; i++)
+ fac *= i;
+
+ return fac;
+}
+
+
+int sum_comb_calc()
+{
+
+}
+
+
+int not_printed()
+{
+
+}
+
+
+float frequency()
+{
+
+}
+
+
+char *get_filename()
+{
+
+}
+
+
+bool is_subset()
+{
+
+}
+
+
+void read_file()
+{
+
+}+
\ No newline at end of file
diff --git a/assignment-1.5-arrays-pointers-files/combinations/src/main.c b/assignment-1.5-arrays-pointers-files/combinations/src/main.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "combinations.h"
+
+
+int main(int argc, char **argv)
+{
+ int N, K;
+ int *arr;
+ int x1, x2, y1, y2;
+
+ N = get_n("N");
+ K = get_n("K");
+ arr = fill_array(N);
+ x_pair(&x1, &x2);
+ y_pair(&y1, &y2);
+ combinations(arr);
+
+
+ free(arr);
+
+ return 0;
+}
