Added Lexicographically comparision

lexicographically_compare.cpp

@@ -0,0 +1,70 @@
+#include <bits/stdc++.h>
+#define in tlong long
+using namespace std ;
+int main() {
+    int n1, n2;
+
+    cout << "Enter size of first array: ";
+    cin >> n1;
+
+    vector<int> v1(n1);
+    cout << "Enter " << n1 << " elements for first array: ";
+    for(int i = 0; i < n1; i++) {
+        cin >> v1[i];
+    }
+
+    cout << "\nEnter size of second array: ";
+    cin >> n2;
+
+    vector<int> v2(n2);
+    cout << "Enter " << n2 << " elements for second array: ";
+    for(int i = 0; i < n2; i++) {
+        cin >> v2[i];
+    }
+
+    cout << "\nFirst array: ";
+    for(int x : v1) cout << x << " ";
+    cout << "\n";
+
+    cout << "Second array: ";
+    for(int x : v2) cout << x << " ";
+    cout << "\n\n";
+
+    bool result = lexicographical_compare(v1.begin(), v1.end(), v2.begin(), v2.end());
+
+    if(result) {
+        cout << "First array is lexicographically less than second array\n";
+    } else {
+        cout << "First array is NOT lexicographically less than second array\n";
+    }
+    return 0;
+}
+
+/*
+**Example run 1:**
+
+Enter size of first array: 4
+Enter 4 elements for first array: 1 2 3 4
+
+Enter size of second array: 4
+Enter 4 elements for second array: 1 2 4 5
+
+First array: 1 2 3 4 
+Second array: 1 2 4 5 
+
+First array is lexicographically less than second array
+
+
+**Example run 2:**
+
+Enter size of first array: 3
+Enter 3 elements for first array: 5 6 7
+
+Enter size of second array: 3
+Enter 3 elements for second array: 1 2 3
+
+First array: 5 6 7 
+Second array: 1 2 3 
+
+First array is NOT lexicographically less than second array
+*/