From eb4ffb54cbee08c13d078e331c7eb76a9e13ab3f Mon Sep 17 00:00:00 2001
From: xavi <xavi@xavishobbies.org>
Date: Thu, 18 Apr 2024 12:33:14 -0700
Subject: [PATCH] Add c_projects

---
 c_projects/1darraysinc/a.out              | Bin 0 -> 17192 bytes
 c_projects/1darraysinc/main.c             |  19 +++++
 c_projects/array_reverse/a.out            | Bin 0 -> 17312 bytes
 c_projects/array_reverse/main.c           |  24 +++++++
 c_projects/arrays_and_strings/a.out       | Bin 0 -> 17824 bytes
 c_projects/arrays_and_strings/main.c      |  41 +++++++++++
 c_projects/dynamic_arrays_in_c/a.out      | Bin 0 -> 15752 bytes
 c_projects/dynamic_arrays_in_c/main.c     |  80 ++++++++++++++++++++++
 c_projects/permutations_of_strings/a.out  | Bin 0 -> 15496 bytes
 c_projects/permutations_of_strings/main.c |  14 ++++
 c_projects/printing_tokens/a.out          | Bin 0 -> 17168 bytes
 c_projects/printing_tokens/main.c         |  26 +++++++
 c_projects/printpattern/a.out             | Bin 0 -> 17864 bytes
 c_projects/printpattern/main.c            |  64 +++++++++++++++++
 c_projects/test/a.out                     | Bin 0 -> 16768 bytes
 c_projects/test/sources                   |   1 +
 c_projects/test/test.c                    |  20 ++++++
 c_projects/test/test.o                    | Bin 0 -> 1815 bytes
 18 files changed, 289 insertions(+)
 create mode 100755 c_projects/1darraysinc/a.out
 create mode 100644 c_projects/1darraysinc/main.c
 create mode 100755 c_projects/array_reverse/a.out
 create mode 100644 c_projects/array_reverse/main.c
 create mode 100755 c_projects/arrays_and_strings/a.out
 create mode 100644 c_projects/arrays_and_strings/main.c
 create mode 100755 c_projects/dynamic_arrays_in_c/a.out
 create mode 100644 c_projects/dynamic_arrays_in_c/main.c
 create mode 100755 c_projects/permutations_of_strings/a.out
 create mode 100644 c_projects/permutations_of_strings/main.c
 create mode 100755 c_projects/printing_tokens/a.out
 create mode 100644 c_projects/printing_tokens/main.c
 create mode 100755 c_projects/printpattern/a.out
 create mode 100644 c_projects/printpattern/main.c
 create mode 100755 c_projects/test/a.out
 create mode 100644 c_projects/test/sources
 create mode 100644 c_projects/test/test.c
 create mode 100644 c_projects/test/test.o

diff --git a/c_projects/1darraysinc/a.out b/c_projects/1darraysinc/a.out
new file mode 100755
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diff --git a/c_projects/1darraysinc/main.c b/c_projects/1darraysinc/main.c
new file mode 100644
index 0000000..28e5363
--- /dev/null
+++ b/c_projects/1darraysinc/main.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main() {
+	int n, i, sum = 0;
+
+	scanf("%d", &n);
+	int *arr = malloc( n * sizeof *arr);
+
+	for ( i = 0; i < n; i++ ){
+		scanf("%d", &arr[i]);
+		sum = sum + arr[i];
+	}
+	printf("%d", sum);
+
+	free(arr);
+
+    return 0;
+}
diff --git a/c_projects/array_reverse/a.out b/c_projects/array_reverse/a.out
new file mode 100755
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diff --git a/c_projects/array_reverse/main.c b/c_projects/array_reverse/main.c
new file mode 100644
index 0000000..1a50fec
--- /dev/null
+++ b/c_projects/array_reverse/main.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(){
+    int num, *arr, i;
+    scanf("%d", &num);
+    arr = (int*) malloc(num * sizeof(int));
+    for(i = 0; i < num; i++) {
+        scanf("%d", arr + i);
+    }
+
+
+    /* Write the logic to reverse the array. */
+	for ( i = 0; i < num/2; i++){
+		int temp = arr[i];
+		arr[i] = arr[num-i-1];
+		arr[num-i-1] = temp;
+	}
+
+    for(i = 0; i < num; i++)
+        printf("%d ", *(arr + i));
+	free(arr);
+    return 0;
+}
diff --git a/c_projects/arrays_and_strings/a.out b/c_projects/arrays_and_strings/a.out
new file mode 100755
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diff --git a/c_projects/arrays_and_strings/main.c b/c_projects/arrays_and_strings/main.c
new file mode 100644
index 0000000..1c95058
--- /dev/null
+++ b/c_projects/arrays_and_strings/main.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define NUM 10
+
+void zero_arr(int *arr){
+	int i;
+	for (i = 0; i < NUM; i++){
+		arr[i] = 0;
+	}
+}
+
+void count_nums(char *input, int *count){
+	int i;
+	for ( i = 0; i < strlen(input); i++ ){
+		count[input[i] - '0']++;
+	}
+
+}
+
+void print_arr(int *count){
+	int i;
+	for ( i = 0; i < NUM; i++ ){
+		printf("%d ", count[i]);
+	}
+}
+
+int main(){
+	int count[NUM];
+
+	char *input = malloc(1024 * sizeof *input);
+	scanf("%[^\n]", input);
+	input = realloc(input, strlen(input) + 1);
+
+	zero_arr(count);
+	count_nums(input, count);
+	print_arr(count);
+
+	return 0;
+}
diff --git a/c_projects/dynamic_arrays_in_c/a.out b/c_projects/dynamic_arrays_in_c/a.out
new file mode 100755
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HcmV?d00001

diff --git a/c_projects/dynamic_arrays_in_c/main.c b/c_projects/dynamic_arrays_in_c/main.c
new file mode 100644
index 0000000..8b1a24c
--- /dev/null
+++ b/c_projects/dynamic_arrays_in_c/main.c
@@ -0,0 +1,80 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define max_books 1100
+
+/*
+ * This stores the total number of books in each shelf.
+ */
+int* total_number_of_books;
+
+/*
+ * This stores the total number of pages in each book of each shelf.
+ * The rows represent the shelves and the columns represent the books.
+ */
+int** total_number_of_pages;
+
+int main()
+{
+	int i;
+    int total_number_of_shelves;
+    scanf("%d", &total_number_of_shelves);
+    
+    int total_number_of_queries;
+    scanf("%d", &total_number_of_queries);
+
+	total_number_of_pages = (int**)malloc( total_number_of_shelves * sizeof(int*) );
+	total_number_of_books = (int*)malloc( total_number_of_shelves * sizeof(int) );
+
+	for ( i = 0; i < total_number_of_shelves; i++ ){
+		*( total_number_of_books + i ) = 0;
+	}
+
+	for ( i = 0; i < total_number_of_shelves; i++ ){
+		*(total_number_of_pages + i) = malloc( max_books * sizeof( *(total_number_of_pages) ) );
+	}
+    
+    while (total_number_of_queries--) {
+        int type_of_query;
+        scanf("%d", &type_of_query);
+        
+        if (type_of_query == 1) {
+            /*
+             * Process the query of first type here.
+             */
+            int x, y;
+            scanf("%d %d", &x, &y);
+			
+			if ( x < total_number_of_shelves ){
+				total_number_of_pages[x][*(total_number_of_books + x)] = y;
+				(*(total_number_of_books + x))++;
+			}
+			
+
+        } else if (type_of_query == 2) {
+            int x, y;
+            scanf("%d %d", &x, &y);
+            printf("%d\n", *(*(total_number_of_pages + x) + y));
+        } else {
+            int x;
+            scanf("%d", &x);
+            printf("%d\n", *(total_number_of_books + x));
+        }
+    }
+
+    if (total_number_of_books) {
+        free(total_number_of_books);
+    }
+    
+    for (int i = 0; i < total_number_of_shelves; i++) {
+        if (*(total_number_of_pages + i)) {
+            free(*(total_number_of_pages + i));
+        }
+    }
+    
+    if (total_number_of_pages) {
+        free(total_number_of_pages);
+    }
+    
+    return 0;
+}
diff --git a/c_projects/permutations_of_strings/a.out b/c_projects/permutations_of_strings/a.out
new file mode 100755
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literal 0
HcmV?d00001

diff --git a/c_projects/permutations_of_strings/main.c b/c_projects/permutations_of_strings/main.c
new file mode 100644
index 0000000..2a42b83
--- /dev/null
+++ b/c_projects/permutations_of_strings/main.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <string.h>
+
+int main(){
+	char* a = "ab";
+	char* b = "ac";
+
+	if ( strcmp(a,b) ){
+		printf("hi");
+
+	}
+
+	return 0;
+}
diff --git a/c_projects/printing_tokens/a.out b/c_projects/printing_tokens/a.out
new file mode 100755
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GIT binary patch
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HcmV?d00001

diff --git a/c_projects/printing_tokens/main.c b/c_projects/printing_tokens/main.c
new file mode 100644
index 0000000..ae54bb6
--- /dev/null
+++ b/c_projects/printing_tokens/main.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+
+int main() {
+    char *s;
+    s = malloc(1024 * sizeof(char));
+    scanf("%[^\n]", s);
+    s = realloc(s, strlen(s) + 1);
+    //Write your logic to print the tokens of the sentence here.
+	char *ptr = s;
+	while ( *ptr != '\0' ){
+		if ( *ptr == ' ' ){
+			printf("\n");
+		}
+		else{
+			printf("%c", *ptr);
+		}
+		ptr++;
+	}
+	printf("\n");
+
+    return 0;
+}
diff --git a/c_projects/printpattern/a.out b/c_projects/printpattern/a.out
new file mode 100755
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diff --git a/c_projects/printpattern/main.c b/c_projects/printpattern/main.c
new file mode 100644
index 0000000..f60b9ac
--- /dev/null
+++ b/c_projects/printpattern/main.c
@@ -0,0 +1,64 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void print_array(int *arr){
+	int *ptr = arr;
+	while ( *ptr != '\0' ){
+		printf("%d ", *ptr);
+		ptr++;
+	}
+	printf("\n");
+}
+
+// starting at index 1, decrement by one until index size - 1
+// then move starting index up by one and have the stop address move back one and repeat
+void first_half(int *arr, int n, int arr_size){
+	int i;
+	for ( i = 0; i < (n - 1); i++ ){
+		int *ptr = &arr[i];
+		while ( ptr != &arr[(arr_size - 2) - i] ){
+			ptr++;
+			(*ptr)--;
+		}
+		print_array(arr);
+	}
+}
+
+// starting at the center, increment by one
+// then expand the contraints by moving the start index back one and end index up one
+// increment and repeat
+void second_half(int *arr, int n, int arr_size){
+	int i;
+	for ( i = (n - 1); i > 0; i-- ){
+		int *ptr = &arr[i];
+		while ( ptr != &arr[(arr_size) - i] ){
+			(*ptr)++;
+			ptr++;	
+		}
+		print_array(arr);
+	}
+}
+
+int main(){
+	int n, i, arr_size;
+    scanf("%d", &n);
+  	// Complete the code to print the pattern.
+
+	// Set array size to be able to count to 1 then back up to passed number
+	arr_size = (2 * n) - 1;
+	int *arr = malloc(arr_size * sizeof *arr);
+
+	// Fill the array with the passed number and print array
+	for ( i = 0; i < arr_size; i++ ){
+		arr[i] = n;
+	}
+	print_array(arr);
+	
+	// complete the first half of pattern
+	first_half(arr, n, arr_size);
+	second_half(arr, n, arr_size);
+
+    return 0;
+
+
+}
diff --git a/c_projects/test/a.out b/c_projects/test/a.out
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literal 0
HcmV?d00001

diff --git a/c_projects/test/sources b/c_projects/test/sources
new file mode 100644
index 0000000..c328f25
--- /dev/null
+++ b/c_projects/test/sources
@@ -0,0 +1 @@
+http://web.mit.edu/15.053/www/AMP.htm
diff --git a/c_projects/test/test.c b/c_projects/test/test.c
new file mode 100644
index 0000000..095a61c
--- /dev/null
+++ b/c_projects/test/test.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+int main(){
+	printf("Hello, World\n");	
+	int x = 40;
+	int y = 50;
+	int i,z = 0;
+
+	for ( i = 0; i < 5; i++ ){
+		int temp = x;
+		x = y;
+		z = temp + x + z;
+		y = temp;
+
+		printf("%d\n", z);
+	}
+
+
+	return 0;
+}
diff --git a/c_projects/test/test.o b/c_projects/test/test.o
new file mode 100644
index 0000000000000000000000000000000000000000..a55ef585c0252f9dcfd3363045053df39c555ba2
GIT binary patch
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literal 0
HcmV?d00001