From 2e4417c1dc1e6702b423d45c5cc7d15c106e639c Mon Sep 17 00:00:00 2001
From: AZEN-SGG <krivoruchenko.sergei@gmail.com>
Date: Wed, 25 Sep 2024 08:00:08 +0300
Subject: [PATCH] =?UTF-8?q?=D0=A1=D0=B4=D0=B5=D0=BB=D0=B0=D0=BB=2022=20?=
 =?UTF-8?q?=D0=97=D0=B0=D0=B4=D0=B0=D0=BD=D0=B8=D0=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 22Ex/input.txt         |  1 +
 22Ex/main.c            | 21 +++++++++++++++++++++
 22Ex/make_increasing.c | 21 +++++++++++++++++++++
 22Ex/make_increasing.h | 12 ++++++++++++
 22Ex/makefile          | 11 +++++++++++
 22Ex/tools.c           | 23 +++++++++++++++++++++++
 22Ex/tools.h           |  8 ++++++++
 7 files changed, 97 insertions(+)
 create mode 100644 22Ex/input.txt
 create mode 100644 22Ex/main.c
 create mode 100644 22Ex/make_increasing.c
 create mode 100644 22Ex/make_increasing.h
 create mode 100644 22Ex/makefile
 create mode 100644 22Ex/tools.c
 create mode 100644 22Ex/tools.h

diff --git a/22Ex/input.txt b/22Ex/input.txt
new file mode 100644
index 0000000..7e92570
--- /dev/null
+++ b/22Ex/input.txt
@@ -0,0 +1 @@
+1 2 3 4 5
\ No newline at end of file
diff --git a/22Ex/main.c b/22Ex/main.c
new file mode 100644
index 0000000..d11e94f
--- /dev/null
+++ b/22Ex/main.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include "tools.h"
+#include "make_increasing.h"
+
+/*
+23 Task
+Example:
+1 2 3 4 5 - possible
+2 1 3 5 4 - impossible
+*/
+
+int main(void) {
+    FILE * file = getFile();
+    if (file == NULL) return 1;
+    if (makeIncreasing(file) != TRUE) {
+        printf("No, it is impossible");
+        return 1;
+    } else printf("Yes, it is possible");
+
+    return 0;
+}
diff --git a/22Ex/make_increasing.c b/22Ex/make_increasing.c
new file mode 100644
index 0000000..8f5db99
--- /dev/null
+++ b/22Ex/make_increasing.c
@@ -0,0 +1,21 @@
+#include "make_increasing.h"
+
+int makeIncreasing(FILE * file) {
+    double current, next;
+    unsigned short used = 0;
+
+    if (fscanf(file, "%lf", &current) != 1) {
+        printf("File is empty!");
+        return 0;
+    }
+
+    while (fscanf(file, "%lf", &next) == 1) {
+        if ((next - current) < DISREG) {
+            if (used == TRUE) return 0;
+            used = TRUE;
+        }
+        current = next;
+    }
+
+    return 1;
+}
diff --git a/22Ex/make_increasing.h b/22Ex/make_increasing.h
new file mode 100644
index 0000000..1171d58
--- /dev/null
+++ b/22Ex/make_increasing.h
@@ -0,0 +1,12 @@
+#ifndef MAKE_INCREASING
+#define MAKE_INCREASING
+
+#include <stdio.h>
+#include <math.h>
+
+#define DISREG 1.e-6
+#define TRUE 1
+
+int makeIncreasing(FILE * file);
+
+#endif
diff --git a/22Ex/makefile b/22Ex/makefile
new file mode 100644
index 0000000..7f54909
--- /dev/null
+++ b/22Ex/makefile
@@ -0,0 +1,11 @@
+all: main.o make_increasing.o tools.o
+	gcc main.o make_increasing.o tools.o && del *.o
+
+main.o: main.c
+	gcc -c main.c
+	
+make_increasing.o: make_increasing.c
+	gcc -c make_increasing.c
+
+tools.o: tools.c
+	gcc -c tools.c
\ No newline at end of file
diff --git a/22Ex/tools.c b/22Ex/tools.c
new file mode 100644
index 0000000..3900212
--- /dev/null
+++ b/22Ex/tools.c
@@ -0,0 +1,23 @@
+#include "tools.h"
+
+FILE * getFile(void)
+{
+    FILE * file;
+    char filename[50];
+
+    printf("Enter filename: ");
+    if (scanf("%s", filename) == 1)
+    {
+        file = fopen(filename, "r");
+        if (file == NULL) {
+            printf("Error file!\n");
+            return NULL;
+        } else {
+            return file;
+        }
+    } else
+    {
+        printf("Empty name!\n");
+        return NULL;
+    }
+}
diff --git a/22Ex/tools.h b/22Ex/tools.h
new file mode 100644
index 0000000..860a2a7
--- /dev/null
+++ b/22Ex/tools.h
@@ -0,0 +1,8 @@
+#ifndef TOOLS
+#define TOOLS
+
+#include <stdio.h>
+
+FILE * getFile(void);
+
+#endif