211085_sushant

Assignment 2/211085_sushant/Ass2.cpp

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+#include <iostream>
+#include <string>
+#include <sstream>
+
+using namespace std;
+
+int main() {
+    string cipherText = "qmnjvsa nv wewc flct vprj tj tvvplvl fv xja vqildhc "
+                          "xmlnvc nacyclpa fc gyt vfvw. fv wgqyp, pqq pqcs y wsq "
+                          "rx qmnjvafy cgv tlvhf cw tyl aeuq fv xja tkbv cqnsqs. "
+                          "lhf avawnc cv eas fuqb qvq tc yllrqr xxwa cfy. psdc uqf "
+                          "avrqc gefq pyat trac xwv taa wwd dv eas flcbq. vd trawm "
+                          "vupq quw x decgqcwt, yq yafl vlqs yqklhq! snafq vml "
+                          "lhvqpawr nqg_vfusr_ec_wawy qp fn wgawdgf.";
+
+    string decryptedText;
+    int index = 0;
+    while (index < cipherText.length()) {
+        char characters[5];
+        string interstitials[5];
+        for (int curIndex = 0; curIndex < 5; curIndex++) {
+            if (isalpha(cipherText[index])) {
+                characters[curIndex] = cipherText[index];
+                // Take all the non-letters with it too
+                while (!isalpha(cipherText[index + 1]) && index < cipherText.length() - 1)
+                    interstitials[curIndex] += cipherText[++index];
+            }
+            index++;
+        }
+        // Concatenate in new order
+        decryptedText += characters[3] + interstitials[0] + characters[2] + interstitials[1] +
+                        characters[4] + interstitials[2] + characters[0] + interstitials[3] + characters[1] + interstitials[4];
+    }
+
+    cipherText = decryptedText;
+    string substitutionRules[] = { "Ow", "Aq", "Ta", "Sl", "Ph", "Ev", "Hf", "Gg", "Ud", "Rn", "Km", "Wr", "Dp", "Ic", "Ny", "Bj",
+                                   "Fs", "Ce", "Lt", "Yx", "Qi", "Mu", "Jk", "Vb" };
+
+    for (string rule : substitutionRules) {
+        size_t pos = cipherText.find(rule[1]);
+        while (pos != string::npos) {
+            cipherText.replace(pos, 1, string(1, rule[0]));
+            pos = cipherText.find(rule[1], pos + 1);
+        }
+    }
+
+    // Print
+    int position = 0;
+    bool afterFullStop = false;
+    bool replaceSpaces = false;
+    for (char c : cipherText) {
+        if (!isalpha(c)) {
+            if (afterFullStop) {
+                cout << c;
+            } else {
+                if (c == '.') {
+                    afterFullStop = true;
+                    replaceSpaces = true;
+                } else if (c == '_') {
+                    cout << ' ';
+                } else {
+                    if (replaceSpaces) {
+                        cout << " " << c;
+                        replaceSpaces = false;
+                    } else {
+                        cout << c;
+                    }
+                }
+            }
+            continue;
+        }
+        cout << c;
+        position++;
+        if (position == 5) {
+            position = 0;
+        }
+    }
+
+    return 0;
+}

Assignment 2/211085_sushant/README.md

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+BREAKER OF THIS CODE WILL BE BLESSED BY THE SQUEAKY SPIRIT RESIDING IN THE HOLE GO AHEAD, AND FIND A WAY OF BREAKING THE SPELL ON HIM CAST BY THE EVIL JAFFAR. THE SPIRIT OF THE CAVE MAN IS ALWAYS WITH YOU. FIND THE MAGIC WAND THAT WILL LET YOU OUT OF THE CAVES. IT WOULD MAKE YOU A MAGICIAN, NO LESS THAN JAFFAR! SPEAK THE PASSWORD THE_MAGIC_OF_WAND TO GO THRHGTO.U