Added 4 Solutions

Algorithms/Bit Manipulation/Sum vs XOR.cpp

@@ -0,0 +1,60 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+string ltrim(const string &);
+string rtrim(const string &);
+
+// Complete the sumXor function below.
+long sumXor(long n) {
+int ctr=0;
+while(n)
+{
+    if(n%2==0)
+    {
+        ctr++;
+    }
+    n/=2;
+}
+ return pow(2,ctr);
+}
+
+int main()
+{
+    ofstream fout(getenv("OUTPUT_PATH"));
+
+    string n_temp;
+    getline(cin, n_temp);
+
+    long n = stol(ltrim(rtrim(n_temp)));
+
+    long result = sumXor(n);
+
+    fout << result << "\n";
+
+    fout.close();
+
+    return 0;
+}
+
+string ltrim(const string &str) {
+    string s(str);
+
+    s.erase(
+        s.begin(),
+        find_if(s.begin(), s.end(), not1(ptr_fun<int, int>(isspace)))
+    );
+
+    return s;
+}
+
+string rtrim(const string &str) {
+    string s(str);
+
+    s.erase(
+        find_if(s.rbegin(), s.rend(), not1(ptr_fun<int, int>(isspace))).base(),
+        s.end()
+    );
+
+    return s;
+}

Algorithms/Implementation/Climbing_the_Leaderboard.cpp

@@ -0,0 +1,25 @@
+#include <ios>
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+std::vector<int> vec;
+
+int main()
+{
+    int n, q, v;
+    std::cin >> n;
+    for (int i = 0; i < n; i++)
+    {
+        std::cin >> v;
+        vec.push_back(v);
+    }
+    std::sort(vec.begin(), vec.end());
+    vec.resize(std::distance(vec.begin(), std::unique(vec.begin(), vec.end())));
+    std::cin >> q;
+    while (q--)
+    {
+        std::cin >> v;
+        std::cout << std::distance(std::upper_bound(vec.begin(), vec.end(), v), vec.end())+1 << '\n';
+    }
+}

Algorithms/Implementation/Encryption.cpp

@@ -0,0 +1,31 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+// Complete the encryption function below.
+void encryption(string s) {
+    int l=s.size();
+    int row=round(sqrt(l));
+    int column;
+    if(row>=sqrt(l))
+        column=row;
+    else column=row+1;
+    for(int j=0;j<column;++j)
+        {
+        for(int i=j; i<l;i+=column)
+        {
+            cout << s[i];
+        }
+        cout << ' ';
+        }
+
+}
+
+int main()
+{
+    string s;
+    getline(cin, s);
+    encryption(s);
+    return 0;
+}
+