Fixed the logical errors and formated the code for better readeability

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "C_Cpp.default.compilerPath": "/bin/gcc"
+}

issue1.c

@@ -1,20 +1,23 @@
-// Make sure the function reverse actually reverses the string
+// Made sure the function reverse actually reverses the string
 
-#include<stdio.h>
-#include<string.h>
-#include<stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
 
-char* reverse(char* str){
-    char* rev = (char*)malloc(sizeof(str));
+char *reverse(char *str)
+{
+    char *rev = (char *)malloc(sizeof(str));
     int size = strlen(str);
-    for(int i=0;i<size;i++){
-        rev[i] = str[i];
+    for (int i = 0; i < size; i++)
+    {
+        rev[size - i - 1] = str[i];
     }
     return rev;
 }
 
-int main(){
-    char* str = "Forward";
+int main()
+{
+    char *str = "Forward";
     str = reverse(str);
     printf("%s\n", str);
 }

issue2.c

@@ -1,11 +1,13 @@
-// Make sure program prints all even numbers from 1 to 40
+// Made sure program prints all even numbers from 1 to 40
 
 #include <stdio.h>
 
-int main(){
+int main()
+{
     int even = 0;
-    for(int i = 0; i <= 20; i++){
-        even *= 2;
+    for (int i = 1; i <= 20; i++)
+    {
+        even += 2;
         printf("%d\t", even);
     }
     printf("\n");

issue3.c

@@ -1,21 +1,23 @@
-// Make sure the program prints the string correctly
+// Made sure the program prints the string correctly
 
 #include <stdio.h>
 
-int main(){
+int main()
+{
     // Printing all the characters in an array
     char z[] = {'h', 'e', 'l', 'l', 'o', '!'};
 
-    char new[50] = ""; 
+    char new[50] = "";
 
-    for(int i = 0; i < 6; i++){
-        new[i] =  z;
+    for (int i = 0; i < 6; i++)
+    {
+        new[i] = z[i];
     }
 
-    for(int i = 0; i < 6; i++){
+    for (int i = 0; i < 6; i++)
+    {
         printf("%c", new[i]);
     }
     printf("\n");
     return 0;
-
 }

issue4.c

@@ -1,11 +1,15 @@
-// Make sure the sorting algorithm is correct
+// Made sure the sorting algorithm is correct
 
 #include <stdio.h>
 
-void sort(int a[], int b){
-    for(int i = 0; i < b; i++){
-        for(int j = 1; j < b; j++){
-            if(a[i] > a[j]){
+void ascending_sort(int a[], int b)
+{
+    for (int i = 0; i < b; i++)
+    {
+        for (int j = i; j < b; j++)
+        {
+            if (a[i] > a[j])
+            {
                 int temp = a[i];
                 a[i] = a[j];
                 a[j] = temp;
@@ -14,12 +18,14 @@ void sort(int a[], int b){
     }
 }
 
-int main(){
+int main()
+{
     // Sort in ascending order
     int numbers[] = {4, 2, 3, 1, 8, 7};
-    sort(numbers, 6);
-
-    for(int i = 0; i < 6; i++){
+    ascending_sort(numbers, 6);
+
+    for (int i = 0; i < 6; i++)
+    {
         printf("%d", numbers[i]);
     }
 }

issue5.c

@@ -1,29 +1,39 @@
-// Make sure you only get the desired output
+// Made sure you only get the desired output
 
-#include<stdio.h>
-int main(void){
+#include <stdio.h>
+int main(void)
+{
     int flag = 0;
-    
+
     printf("Choose the operation:-\n1. Multiples of 2\n2. Multiples of 3\n3. Multiples of 4\n");
     scanf(" %d", &flag);
 
-    switch(flag){
-        case 1 :
-            for(int i=1;i<6;i++){
-                printf("%d\t", 2*i);
-            }
-            printf("\n");
-        case 2 : 
-            for(int i=1;i<6;i++){
-                printf("%d\t", 3*i);
-            }
-            printf("\n");
-        case 3 : 
-            for(int i=1;i<6;i++){
-                printf("%d\t", 4*i);
-            }
-            printf("\n");
-        default :
-                printf("Choose a valid option!!!\n");
+    switch (flag)
+    {
+    case 1:
+        for (int i = 1; i < 6; i++)
+        {
+            printf("%d\t", 2 * i);
+        }
+        printf("\n");
+        break;
+    case 2:
+        for (int i = 1; i < 6; i++)
+        {
+            printf("%d\t", 3 * i);
+        }
+        printf("\n");
+        break;
+    case 3:
+        for (int i = 1; i < 6; i++)
+        {
+            printf("%d\t", 4 * i);
+        }
+        printf("\n");
+        break;
+
+    default:
+        printf("Choose a valid option!!!\n");
+        break;
     }
 }

issue6.c

@@ -1,12 +1,13 @@
-// Make sure the program is working correct logically
+// Made sure the program is working correct logically
 
-#include<stdio.h>
-#include<string.h>
-int main(void){
-    char* str1 = "This is a string";
-    char* str2 = "This is another string";
+#include <stdio.h>
+#include <string.h>
+int main(void)
+{
+    char *str1 = "This is a string";
+    char *str2 = "This is another string";
 
-    if(strcmp(str1, str2))
+    if (!strcmp(str1, str2))
         printf("Strings are same.\n");
     else
         printf("Strings are not same.\n");

issue7.c

@@ -1,11 +1,12 @@
-// Make sure the output is the correct sum of a and b
+// Made sure the output is the correct sum of a and b
 
-#include<stdio.h>
-#include<stdlib.h>
+#include <stdio.h>
+#include <stdlib.h>
 
-int main(void){
+int main(void)
+{
     int a = 5;
-    int* b = (int*)malloc(sizeof(int));
+    int *b = (int *)malloc(sizeof(int));
     *b = 7;
-    printf("%d\n", (a+b));
+    printf("%d\n", (a + *b));
 }

issue8.c

@@ -1,11 +1,13 @@
-// Only print the given string, nothing more
-// Bonus if you don't count the number of characters in the string manually
+// Only printed the given string, nothing more
+// didn't count the number of characters in the string manually
 
-#include<stdio.h>
-#include<string.h>
-int main(void){
-    char* str = "Welcome to IEEE\n";
-    for(int i=0;i<100;i++){
+#include <stdio.h>
+#include <string.h>
+int main(void)
+{
+    char *str = "Welcome to IEEE\n";
+    for (int i = 0; i < strlen(str) - 1; i++)
+    {
         printf("%c", str[i]);
     }
     printf("\n");

issue9.c

@@ -1,8 +1,8 @@
-// print correct factorial of the variable "num"
+// printed correct factorial of the variable "num"
 
 #include<stdio.h>
 int factorial(int n){
-    if(n == 2)
+    if(n == 1)
         return 1;
     else
         return n*factorial(n-1);

makefile

@@ -0,0 +1,3 @@
+all:
+	g++ ncurses.cpp -lncurses
+	./a.out

matplotlib.py

@@ -0,0 +1,9 @@
+import matplotlib.pyplot as pt 
+
+x=[1,2,3,4,5,6,7]
+y=[1,2,3,4,5,6,7]
+
+pt.plot(x,y)
+pt.xlable("x")
+pt.ylable("y")
+pt.show()

ncurses.c

@@ -0,0 +1,53 @@
+#include <ncurses.h>
+
+
+int main()
+{
+    // initating a terminal window
+    initscr();
+    // to start reciveing input immideateliy but on by default
+    cbreak();
+    // to pritnt to window
+    printw("hello world");
+    printw("enter the pin:");
+    // to hide the keystrokes
+    noecho();
+    for (int i = 0; i < 4; i++)
+    {
+        getch();
+    }
+    // to show the keystrokes
+    echo();
+
+    int height = 10, width = 20, start_y = 1, start_x = 1;
+
+    // created a window
+    WINDOW *win = newwin(height, width, start_y, start_x);
+    //to refresh the window
+    refresh();
+
+    //to add border to created sub window
+    box(win, 0, 0);
+    mvwprintw(win, 1, 1, "frame 1");
+    wrefresh(win);
+
+
+    // getting environment info
+    int y, x, ybeg, xbeg, ymax, xmax;
+    getyx(stdscr, y, x);
+    getmaxyx(stdscr, ymax, xmax);
+    getbegyx(win, ybeg, xbeg);
+
+    move(10, 10);
+    box(win, 10, 10);
+
+    wrefresh(win);
+
+    printw("%d %d %d %d %d %d", y, x, ybeg, xbeg, ymax, xmax);
+    wrefresh(win);
+    getch();
+
+    endwin();
+
+    return 0;
+}

proc.sh

@@ -0,0 +1,24 @@
+#! /bin/bash
+
+# showinf uptime
+a=($(cat /proc/uptime))
+h=$( echo "${a[0]}/3600" | bc )
+min=$(echo "((${a[0]}%3600)/60)" | bc )
+
+echo "uptime: $h hr and $min min" 
+
+# showing load average 
+l=($(cat /proc/loadavg))
+echo "loadavg"
+for num in {0..2}
+do
+c=$( echo "${l[num]}*100"  | bc )
+
+echo " $c % " 
+done
+echo " running processes/total : ${l[3]} "
+echo " most recent process (ID) : ${l[4]} "
+
+
+
+