update

C++/s1.cpp

@@ -1,17 +1,21 @@
 // to find the reverse of a given number
 
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-int reverse(int x) {
-    long r=0;                                  
-    while(x){
-        r=r*10+x/10;
-        x=x/10;                                   
+int reverse(int x)
+{
+    long r = 0;
+    while (x)
+    {
+        // r=r*10+x/10; // bug
+        r = r * 10 + x % 10; // solution
+        x = x / 10;
     }
     return r;
 }
 
-int main(void){
+int main(void)
+{
     cout << reverse(12345) << endl;
-}
+}

C++/s2.cpp

@@ -3,16 +3,19 @@
 #include <iostream>
 #include <vector>
 
-int main(){
-    std :: vector<int> myVec;
+int main()
+{
+    std ::vector<int> myVec;
     myVec.push_back(1);
     myVec.push_back(2);
     myVec.push_back(3);
 
-    for(int i=0; i < myVec.size(); i++){
-        std :: cout << myVec[i] << std :: endl;
+    for (int i = 0; i < myVec.size(); i++)
+    {
+        std ::cout << myVec[i] << std ::endl;
     }
-    std :: cout << "Element at index 3: "<< myVec.at(3) << std::endl;
-
+    // std :: cout << "Element at index 3: "<< myVec.at(3) << std::endl; // bug
+    std ::cout << "Element at index 3: " << myVec.at(2) << std::endl; // solution
+
     return 0;
-}
+}

C++/s3.cpp

@@ -1,24 +1,30 @@
 // find the bug in the concept
 
-#include<iostream>
+#include <iostream>
 using namespace std;
 
 int i = 5;
 int j;
 
-int foo(int j) {
-  for (i=0; i<j; i++){
+int foo(int j)
+{
+  for (i = 0; i < j; i++)
+  {
     cout << i << " ";
   }
   return j;
 }
 
-void ineedj(void) {
+void ineedj(void)
+{
   cout << "j is " << j << "\n";
 }
 
-main() {
+// main() {//bug
+int main()
+{ // solution
   int j;
   j = foo(i);
   ineedj();
-}
+  return 0;
+}

C++/s4.cpp

@@ -1,20 +1,22 @@
 // random returns a random (positive) integer.
 // Random returns a random integer in the range 0 to n-1.
 
-#include<iostream>
+#include <iostream>
 #include <bits/stdc++.h>
 using namespace std;
-#define Random(n)  random()%n
+#define Random(n) random() % n
 
-int random(){
+int random()
+{
     srand(time(0));
     return rand();
 }
 
-
-int main(void){
-    int i=6, j=7;
-    int val = Random(j-i+1);
+int main(void)
+{
+    int i = 6, j = 7;
+    // int val = Random(j-i+1);
+    int val = random() % (j - i + 1);
 
     cout << val << endl;
-}
+}

C++/s5.cpp

@@ -1,13 +1,13 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-
-int main(void){
+int main(void)
+{
     string string1 = "Hello";
     string string2 = "Horld";
 
     if (string1 == string2)
-    cout << "Equal";
+        cout << "Equal";
     else
-    cout << "Not Equal";
-}
+        cout << "Not Equal";
+}

C++/s6.cpp

@@ -1,18 +1,36 @@
 // to find the largest sum of subarray
-#include<iostream>
+#include <iostream>
 using namespace std;
 
 int maxSubArraySum(int a[], int size)
 {
-    int max_so_far = INT_MIN, max_ending_here;
-
-    for (int i = 0; i < size; i++) {
+    // change INT_MIN to 0
+    int max_so_far = 0;
+    int max_ending_here = 0;
+
+    for (int i = 0; i < size; i++)
+    {
         max_ending_here = max_ending_here + a[i];
         if (max_so_far < max_ending_here)
             max_so_far = max_ending_here;
-
-        if (max_ending_here < 0)
+
+        // if (max_ending_here < 0)//bug
+        if (max_ending_here < max_so_far) // solution
             max_ending_here = max_so_far;
     }
     return max_so_far;
 }
+// solution
+int main()
+{
+    int a[5];
+    for (int i = 0; i < 4; i++)
+    {
+        a[i] = i;
+    }
+    a[4] = -2;
+
+    int max = maxSubArraySum(a, 5);
+    cout << max << endl;
+    return 0;
+}

JS & TS/four.js

@@ -21,7 +21,15 @@ let team = [
   },
 ];
 const filterBySalary = (peopleArray, threshold = 300) => {
-  return peopleArray.find((person) => person.salary > threshold);
+  // return peopleArray.find((person) => person.salary > threshold);
+  // pushing all the person with salary > threshold into the list
+  list = [];
+  peopleArray.forEach((person) => {
+    if (person.salary > threshold) {
+      list.push(person);
+    }
+  })
+  return list;
 };
 const filteredTeam = filterBySalary(team, 300);
-console.log(team, filteredTeam);
+console.log(filteredTeam);

JS & TS/one.js

@@ -1,5 +1,6 @@
 const printNames = (names) => {
   return `We are ${names.toLowerCase()}`;
 };
-const intro = printNames("krish" + +"bob");
+// const intro = printNames("krish" + +"bob");
+const intro = printNames("krish" + "bob");
 console.log(intro);

JS & TS/three.js

@@ -17,12 +17,15 @@ const team = [
   {
     name: "james",
     place: "earth",
+    // james' friends should be defined
   },
 ];
 const hasFriends = (person) => {
-  return !(person.friends === false);
+  // return !(person.friends === false);
+  return !(person.friends === undefined);
 };
 
 const jamesHolden = team[3];
 const jamesHasFriends = hasFriends(jamesHolden);
 console.log(jamesHasFriends);
+

JS & TS/two.js

@@ -17,6 +17,8 @@ const team = [
   {
     name: "james",
     place: "earth",
+    // james' earns value is not defined
+    earns: false,
   },
 ];
 

Web-Dev/css-is-awesome/initial.css

@@ -1,15 +1,16 @@
 body {
-    min-height: 90vh;
-    background: linear-gradient(90deg, #0c97fa 0%, #16e1f5 100%);
-    display: grid;
-    place-items: center;
+  min-height: 90vh;
+  background: linear-gradient(90deg, #0c97fa 0%, #16e1f5 100%);
+  display: grid;
+  place-items: center;
 }
 
 .container {
-    background: white;
-    width: 120px;
-    height: 200px;
-    padding-inline: 0.3rem;
-    font-size: 3rem;
-    border-radius: 0.3rem;
-}
+  background: white;
+  /* Do not give a fixed width */
+  /* width: 120px; */
+  height: 200px;
+  padding-inline: 0.3rem;
+  font-size: 3rem;
+  border-radius: 0.3rem;
+}