IndustryCodeLab · Sumit-Rajak99 · Aug 28, 2025 · Aug 28, 2025 · Aug 30, 2025 · Sep 9, 2025
diff --git a/MissingNumberSum.class b/MissingNumberSum.class
diff --git a/MissingNumberSum.java b/MissingNumberSum.java
@@ -0,0 +1,15 @@
+// File: MissingNumberSum.java
+public class MissingNumberSum {
+    public static int missingNumber(int[] nums) {
+        int n = nums.length;
+        long expected = (long) n * (n + 1) / 2; // use long to avoid overflow
+        long actual = 0;
+        for (int v : nums) actual += v;
+        return (int) (expected - actual);
+    }
+
+    public static void main(String[] args) {
+        int[] a1 = {3,0,1};
+        System.out.println(missingNumber(a1)); // 2
+    }
+}
diff --git a/Palindrome.java b/Palindrome.java
@@ -0,0 +1,20 @@
+import java.util.*;
+
+class PalindromeString {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Enter a string: ");
+        String s = sc.nextLine();
+
+        String rev = "";
+        for (int i = s.length() - 1; i >= 0; i--) {
+            rev = rev + s.charAt(i);
+        }
+
+        if (s.equals(rev)) {
+            System.out.println("Palindrome");
+        } else {
+            System.out.println("Not Palindrome");
+        }
+    }
+}
diff --git a/aman.py b/aman.py
@@ -0,0 +1,2 @@
+a=10
+print(a)
diff --git a/ankit.html b/ankit.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <link rel="stylesheet" href="styled.css">
+</head>
+<body>
+    <h1>hello deepak</h1>
+    <h1>I am good, how are you</h1>
+    <div>
+    <p>Prithibi ta naki choto hote hote Lyrics
+[Verse 1]
+Prithibita naki choto hote hote
+Satellite aar cable er hate
+Drawing room a rakha boka baksho te bondhi
+
+[Verse 2]
+Ghore boshe sara duniyar saathe
+Jogajog aaj hater mutho te
+Ghuche geche desh kal simanar gondi
+
+[Chorus]
+Bhebe dekhecho ki
+Tara rao joto alok borsho dure
+Taro dure
+Tumi aar ami jai krome shore shore
+Bhebe dekhecho ki
+Tara rao joto alok borsho dure
+Taro dure
+Tumi aar ami jai krome shore shore
+
+[Verse 3]
+Shaari shaari mukh aashe aar jae
+Neshatur chokh tv porday
+Poka-makore aguner sathe songii
+
+[Verse 4]
+Pasha pashi boshe еk sathe dekha
+Ek sathe noy asholе je eka
+Tomar amar bharater noya fondi</p>
+
+</div>
+<p style="color:black">This masterpeice was created in the early 1970s. it is then adapted in bollywood Without giving any credit to its original makers  ( Crosswinds, Lakkhichara, and Moheener Ghoraguli) Bengali music was ahead of its time.</p>
+<audio src="./audio/Prithibita-Naki-Choto-Hote-Hote.mp3" controls muted></audio>
+</body>
+</html>
diff --git a/audio/Prithibita-Naki-Choto-Hote-Hote.mp3 b/audio/Prithibita-Naki-Choto-Hote-Hote.mp3
diff --git a/buyand sell.cpp b/buyand sell.cpp
@@ -0,0 +1,25 @@
+ #include <iostream>
+#include <vector>
+using namespace std;
+
+class Solution {
+public:
+    int maxProfit(vector<int>& prices) {
+        int profit = 0;
+        for (int i = 1; i < prices.size(); i++) {
+            if (prices[i] > prices[i - 1]) {
+                profit += prices[i] - prices[i - 1];
+            }
+        }
+        return profit;
+    }
+};
+
+int main() {
+    Solution obj;
+    vector<int> prices = {7, 1, 5, 3, 6, 4};
+    int result = obj.maxProfit(prices);
+    cout << "Maximum Profit: " << result << endl;
+    return 0;
+}
+
diff --git a/ccdc.cpp b/ccdc.cpp
@@ -0,0 +1,24 @@
+#include<iostream>
+using namespace std;
+void print(int n){
+for(int i=0;i<n;i++){
+    for(int j=0;j<=n-i+1;j++){
+        cout<<j;
+    }
+    cout<<endl;
+}
+}
+
+int main(){
+
+   int t;
+   cin>>t;
+
+   for(int i=0;i<t;i++){
+    int n;
+    cin>>n;
+    print(n);
+   cout<<" ";
+   }
+
+}
diff --git a/change.html b/change.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <button onclick="mycolor()"> hello </button>
+    <script>function mycolor(){
+ let r=Math.floor(Math.random()*256)
+  let g=Math.floor(Math.random()*256)
+   let b=Math.floor(Math.random()*256)
+    let my= `rgb(${r},${g},${b})`
+    document.body.style.backgroundColor=my;
+    } 
+
+
+    </script>
+</body>
+</html>
diff --git a/code.cpp b/code.cpp
@@ -0,0 +1,48 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+class Solution {
+public:
+    string longestPalindrome(string s) {
+        int start = 0, maxLen = 1; // start index and max length
+
+        for (int i = 0; i < s.length(); i++) {
+            // Odd length palindrome
+            int l = i, r = i;
+            while (l >= 0 && r < s.length() && s[l] == s[r]) {
+                if (r - l + 1 > maxLen) {
+                    start = l;
+                    maxLen = r - l + 1;
+                }
+                l--;
+                r++;
+            }
+
+            // Even length palindrome
+            l = i, r = i + 1;
+            while (l >= 0 && r < s.length() && s[l] == s[r]) {
+                if (r - l + 1 > maxLen) {
+                    start = l;
+                    maxLen = r - l + 1;
+                }
+                l--;
+                r++;
+            }
+        }
+
+        return s.substr(start, maxLen);
+    }
+};
+
+int main() {
+    Solution sol;
+    string str;
+    cout << "Enter a string: ";
+    cin >> str;
+
+    string ans = sol.longestPalindrome(str);
+    cout << "Longest Palindromic Substring: " << ans << endl;
+
+    return 0;
+}
diff --git a/first.py b/first.py
@@ -0,0 +1,3 @@
+print (13&19)
+print (13 | 19)
+print(13 ^ 19)
diff --git a/grid.html b/grid.html
@@ -0,0 +1,58 @@
+ <!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Grid Exercise with Rows + Media Query</title>
+<style>
+*{box-sizing:border-box;margin:0;padding:0}
+body{font-family:Arial,Helvetica,sans-serif;background:#f5f5f5;padding:20px}
+
+h2{text-align:center;margin-bottom:15px}
+
+.gallery{
+  display:grid;
+  grid-template-columns: repeat(3, 1fr);  
+  gap:12px;
+  max-width:1000px;
+  margin:0 auto;
+}
+.gallery img{
+  width:100%;
+  height:100%;
+  object-fit:cover;
+  border-radius:8px;
+  box-shadow:0 2px 6px rgba(0,0,0,0.2);
+}
+
+
+@media(max-width:900px){
+  .gallery{
+    grid-template-columns:repeat(2,1fr);
+    grid-template-rows:auto auto auto; 
+  }
+}
+
+
+@media(max-width:500px){
+  .gallery{
+    grid-template-columns:1fr;
+    grid-template-rows:auto; 
+  }
+}
+</style>
+</head>
+<body>
+
+<h2>Responsive Image Gallery (Rows + Columns)</h2>
+<div class="gallery">
+  <img class="img1" src="https://picsum.photos/id/1011/600/400" alt="img1">
+  <img src="https://picsum.photos/id/1021/600/400" alt="img2">
+  <img src="https://picsum.photos/id/1031/600/400" alt="img3">
+  <img src="https://picsum.photos/id/1041/600/400" alt="img4">
+  <img src="https://picsum.photos/id/1051/600/400" alt="img5">
+  <img src="https://picsum.photos/id/1061/600/400" alt="img6">
+</div>
+
+</body>
+</html>
diff --git a/grid2.html b/grid2.html
@@ -0,0 +1,62 @@
+
+Viewed
+Original file line number	Diff line number	Diff line change
+@@ -0,0 +1,58 @@
+ <!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Grid Exercise with Rows + Media Query</title>
+<style>
+*{box-sizing:border-box;margin:0;padding:0}
+body{font-family:Arial,Helvetica,sans-serif;background:#f5f5f5;padding:20px}
+
+h2{text-align:center;margin-bottom:15px}
+
+.gallery{
+  display:grid;
+  grid-template-columns: repeat(3, 1fr);  
+  gap:12px;
+  max-width:1000px;
+  margin:0 auto;
+}
+.gallery img{
+  width:100%;
+  height:100%;
+  object-fit:cover;
+  border-radius:8px;
+  box-shadow:0 2px 6px rgba(0,0,0,0.2);
+}
+
+
+@media(max-width:900px){
+  .gallery{
+    grid-template-columns:repeat(2,1fr);
+    grid-template-rows:auto auto auto; 
+  }
+}
+
+
+@media(max-width:500px){
+  .gallery{
+    grid-template-columns:1fr;
+    grid-template-rows:auto; 
+  }
+}
+</style>
+</head>
+<body>
+
+<h2>Responsive Image Gallery (Rows + Columns)</h2>
+<div class="gallery">
+  <img class="img1" src="https://picsum.photos/id/1011/600/400" alt="img1">
+  <img src="https://picsum.photos/id/1021/600/400" alt="img2">
+  <img src="https://picsum.photos/id/1031/600/400" alt="img3">
+  <img src="https://picsum.photos/id/1041/600/400" alt="img4">
+  <img src="https://picsum.photos/id/1051/600/400" alt="img5">
+  <img src="https://picsum.photos/id/1061/600/400" alt="img6">
+</div>
+
+</body>
+</html>
diff --git a/index .html b/index .html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+
+<body>
+    <h1>Hello sharvan</h1>
+</body>
+
+</html>
diff --git a/index.html11 b/index.html11
diff --git a/index1.html b/index1.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+
+    <h1>this is bhopal</h1>
+<h2>this is mp nagar</h2>
+<h3>cybrom technology</h3>
+
+
+</body>
+</html>
diff --git a/k.cpp b/k.cpp
@@ -0,0 +1 @@
+git