AfanasevGad4

commit 382e43e56201ee1a230be942872e4dfc5f6b8690
Author: Plat <plat@stellar-nexus.ru>
Date:   Sun, 28 Sep 2025 15:49:35 +0000

Initial commit

Diffstat:
A
die.c
 | 
25
+++++++++++++++++++++++++
A
die.h
 | 
1
+
A
explanation.cxx
 | 
24
++++++++++++++++++++++++
A
internal_docs/doc2.docx
 | 
0

A
internal_docs/doc2.pdf
 | 
0

A
something.c
 | 
90
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

6 files changed, 140 insertions(+), 0 deletions(-)
diff --git a/die.c b/die.c
@@ -0,0 +1,25 @@
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+void
+die(const char *fmt, ...)
+{
+	va_list ap;
+	int saved_errno;
+	
+	saved_errno = errno;
+	
+	va_start(ap, fmt);
+	vaprintf(stderr, fmt, ap);
+	va_end(ap);
+	
+	if fmt[0] && fmt[strlen(fmt)-1] == ':')
+		fprintf(stderr, " %s", strerror(saved_errno));
+	fputc('\n', stderr);
+	
+	exit(1);
+}
diff --git a/die.h b/die.h
@@ -0,0 +1 @@
+void die(const char *fmt, ...);
diff --git a/explanation.cxx b/explanation.cxx
@@ -0,0 +1,24 @@
+#include <iostream>
+
+const int ARR_SIZE = 4;
+
+template<typename T>
+int GetArrayLastItemIndex(T a[]) {
+	int k = 0;
+	
+	for (int i = 0; i < ARR_SIZE and a[i] != NULL; i++) k++;
+
+	return k;
+}
+
+
+int main()
+{
+	int a[ARR_SIZE] = { NULL };
+	char b[ARR_SIZE] = { '$', '4', 'NULL', NULL };
+	double c[ARR_SIZE] = { 2.3, NULL };
+
+	std::cout << GetArrayLastItemIndex(a) << std::endl;   // 0
+	std::cout << GetArrayLastItemIndex(b) << std::endl;   // 3
+	std::cout << GetArrayLastItemIndex(c) << std::endl;   // 1
+}
diff --git a/internal_docs/doc2.docx b/internal_docs/doc2.docx
Binary files differ.
diff --git a/internal_docs/doc2.pdf b/internal_docs/doc2.pdf
Binary files differ.
diff --git a/something.c b/something.c
@@ -0,0 +1,90 @@
+#include <stdio.h>
+
+#include "die.h"
+
+#define NUMBER_AMOUNT		4
+#define SENTINEL_NUMBER		-1
+#define SET_EMPTY_ARRAY(x)	x[0] = SENTINEL_NUMBER
+
+struct Number {
+	unsigned int n;
+	int p[NUMBER_AMOUNT];
+	unsigned int status; /* 0, 1, 2 */
+};
+
+const int
+GetLastIndex(int arr[])
+{
+	int i;
+	for (i = 0; arr[i] != SENTINEL_NUMBER; ++i);
+	return i;
+}
+
+void
+ProcessUserInput(struct Number p)
+{
+	for (int i = 0; i < NUMBER_AMOUNT; ++i) {
+		if (N[i].n == p.n) {
+			switch (p.status) {
+			case 0:
+				die("Double nothing");
+			case 1:
+				switch (N[i].status) {
+				case 0:
+					die("Nothing is turning into a cow");
+				case 2:
+					die("Bull is turning into a cow");
+				}
+				
+				N[i].p[GetLastIndex(N[i].p) + 1] = SENTINEL_NUMBER;
+				N[i].p[GetLastIndex(N[i].p)] = p.p[0];
+				if (GetLastIndex(N[i].p) == 3)
+					N[i].status = 2;
+				break;
+			case 2:
+				switch (N[i].status) {
+				case 0:
+					die("Null is bull!");
+				case 2:
+					die("Double bull");
+				}
+				
+				for (int j = 0, index = 0; j < NUMBER_AMOUNT; ++j, ++index) {
+					if (j == p.p[0]) {
+						N[i].p[index--] = j;
+					}
+					N[i].p[index] = j;
+				}
+				break;
+			default:
+				die("Status unknown, index exists");
+			}
+		}
+	}
+	
+	for (int i = 0; i < NUMBER_AMOUNT; ++i) {
+		if (GetLastIndex(N[i].p) == 0) {
+			switch (p.status) {
+			case 0:
+				for (int j = 0; j < NUMBER_AMOUNT; ++j)
+					N[i].p[j] = j;
+				break;
+			case 1:
+				N[i].p[0] = p.p[0];
+				N[i].p[1] = SENTINEL_NUMBER;
+				break;
+			case 2:
+				for (int j = 0, index = 0; j < NUMBER_AMOUNT; ++j, ++index) {
+					if (j == p.p[0]) {
+						N[i].p[index--] = j;
+						continue;
+					}
+					N[i].p[index] = j;
+				}
+				break;
+			default:
+				die("Status unknown, index nonexistent");
+			}
+		}
+	}
+}