From 754e3cc853431167ab428a0830f11f22f94389e9 Mon Sep 17 00:00:00 2001
From: staso <stasor12@gmail.com>
Date: Fri, 18 Nov 2016 23:34:23 +0200
Subject: [PATCH 1/4] Homework

---
 A/04/23/task01.c | 15 +++++++++++++++
 A/04/23/task02.c | 19 +++++++++++++++++++
 A/04/23/task03.c | 20 ++++++++++++++++++++
 3 files changed, 54 insertions(+)
 create mode 100644 A/04/23/task01.c
 create mode 100644 A/04/23/task02.c
 create mode 100644 A/04/23/task03.c

diff --git a/A/04/23/task01.c b/A/04/23/task01.c
new file mode 100644
index 000000000..52f6552d6
--- /dev/null
+++ b/A/04/23/task01.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+int main(){
+	int n,a[100],i=0;
+	scanf("%d",&n);
+	while(i<n){
+		scanf("%d",&a[i]);
+		i++;
+	}
+	while(i>0){
+		i--;
+		printf("%d\n",a[i]);
+
+	}
+}
diff --git a/A/04/23/task02.c b/A/04/23/task02.c
new file mode 100644
index 000000000..bcdc3c23c
--- /dev/null
+++ b/A/04/23/task02.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int main(){
+	int n,i=0,s,a[100],b;
+	scanf("%d",&n);
+	while(i<n){
+		scanf("%d",&b);
+		if(b%2!=0){a[i]=b;i++;}
+	}
+	n=n-1;
+	i=0;
+	while(i<n){
+		s=a[i]-a[n];
+		n--;
+		i++;
+		printf("%d\n",s);	
+	}
+	if(i==n)printf("%d",a[i]);
+}
diff --git a/A/04/23/task03.c b/A/04/23/task03.c
new file mode 100644
index 000000000..ede9500ca
--- /dev/null
+++ b/A/04/23/task03.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(){
+	int i=0,c=0,d=0;
+	char n[1000],b='A',a='a';
+	fgets(n, 1000, stdin);
+	while(d<26){
+		while(n[i]!=NULL){
+			if(n[i]==a || n[i]==b)c++;
+			i++;
+		}
+		if(c!=0)printf("%c - %d\n",a,c);
+		i=0;
+		a++;
+		b++;
+		d++;
+		c=0;
+	}
+}

From 5e145f41cb7db4664ea4357664d97fc3c33ea97f Mon Sep 17 00:00:00 2001
From: staso <stasor12@gmail.com>
Date: Fri, 18 Nov 2016 23:40:54 +0200
Subject: [PATCH 2/4] Homework

---
 A/04/23/task03.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/A/04/23/task03.c b/A/04/23/task03.c
index ede9500ca..1351b7833 100644
--- a/A/04/23/task03.c
+++ b/A/04/23/task03.c
@@ -6,7 +6,7 @@ int main(){
 	char n[1000],b='A',a='a';
 	fgets(n, 1000, stdin);
 	while(d<26){
-		while(n[i]!=NULL){
+		while(n[i]!='\0'){
 			if(n[i]==a || n[i]==b)c++;
 			i++;
 		}

From 958bce6f2bab03d63052077d9f817bc7b273c886 Mon Sep 17 00:00:00 2001
From: staso <stasor12@gmail.com>
Date: Fri, 25 Nov 2016 23:47:12 +0200
Subject: [PATCH 3/4] Homework

---
 A/04/23/task04.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 A/04/23/task04.c

diff --git a/A/04/23/task04.c b/A/04/23/task04.c
new file mode 100644
index 000000000..2b8beddc6
--- /dev/null
+++ b/A/04/23/task04.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(){
+	int b=0,d=0,a=0,i=0,e;
+	float c,n[64],s,m;
+	while(!feof(stdin)){
+		scanf("%f",&c);
+		while(b<=i){
+			if(n[b]==c){d=1;break;}
+			b++;
+		}
+		if(d==0){n[i]=c;i++;}
+		b=0;
+		d=0;
+	}
+	printf("%d",i);
+}

From f421978d9877f68fa9c1308757ee1f44ed97dde5 Mon Sep 17 00:00:00 2001
From: staso <stasor12@gmail.com>
Date: Fri, 25 Nov 2016 23:50:46 +0200
Subject: [PATCH 4/4] Homework

---
 A/04/23/task04.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/A/04/23/task04.c b/A/04/23/task04.c
index 2b8beddc6..85f4097f5 100644
--- a/A/04/23/task04.c
+++ b/A/04/23/task04.c
@@ -2,8 +2,8 @@
 #include <stdlib.h>
 
 int main(){
-	int b=0,d=0,a=0,i=0,e;
-	float c,n[64],s,m;
+	int b=0,d=0,i=0;
+	float c,n[64];
 	while(!feof(stdin)){
 		scanf("%f",&c);
 		while(b<=i){