added unprotected flag checker

Author: Pooja444

Makefile

@@ -1,6 +1,8 @@
 all:
 	clang++ -o check_flag check_flag.cpp CustomVM.cpp
 	strip check_flag
-release:
+release-protected:
 	clang++ -O3 -o check_flag check_flag.cpp CustomVM.cpp
-	strip check_flag
+	strip check_flag
+release-unprotected:
+	clang++ -o unprotected_check_flag unprotected_check_flag.cpp

README.md

@@ -1,22 +0,0 @@
-// Get substring from 'for(' to ';'
-// Trim to check if it is empty
-for(; ...)
-for( ; ...)
-
-// find if first 4 characters are "int "
-1. From "int " to ";" take a substring
-2. Trim all whitespaces
-3. Variable: substring from 0 to =
-4. Initial value of that variable: substring from '=' + 1 till end
-
-for(int i = 0; ...)
-for(int i=0; ...)
-
-// First 4 characters are not 'int ' and first character is not a semicolon - variable was declared earlier
-for(i = 0; ...)
-for(i=0; ...)
-
-for(int i = 0 ; ...)
-for(int i=0 ; ...)
-for(i = 0 ; ...)
-for(i=0 ; ...)

unprotected_check_flag.cpp

@@ -0,0 +1,29 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    char* input = (char *)malloc(100);
+    cout << endl << "************************************************** Welcome to my flag checker program! **************************************************" << endl;
+    cout << endl;
+    cout << "All you need to do is enter a flag. If it is a valid flag, I will be very happy!!! :)" << endl;
+    cout << endl << "Please enter your flag now: ";
+    cin >> input;
+
+    vector<int> flagValues({100, 50, 0, 190, 20, 210, 90, 60, 190, 0, 30, 60, 0, 210, 190, 20, 230, 60, 130, 100, 150, 80});
+    int i;
+
+    for(i = 0; i < 22; i++) {
+        int flagValue = (int)input[i];
+        flagValue -= 95;
+        flagValue *= 10;
+        if(flagValue != flagValues[i]) {
+            cout << endl << "Hmmm, sorry, that's an invalid flag. Please try again!";
+            break;
+        }
+    }
+    
+    if(i == 22) {
+        cout << endl << "Congratulations, that's a valid flag!!!";
+    }
+}