feat(Codewars): WIP onlinePlatform/codewars/5kyu/coding_with_squared_strings.cc

Author: htbkoo

src/onlinePlatform/codewars/5kyu/CMakeLists.txt

@@ -19,3 +19,13 @@ target_link_libraries(
         GTest::gtest_main
 )
 gtest_discover_tests(square_matrix_multiplication_google_test)
+
+add_executable(
+        coding_with_squared_strings
+        coding_with_squared_strings_google_test.cc
+)
+target_link_libraries(
+        coding_with_squared_strings
+        GTest::gtest_main
+)
+gtest_discover_tests(coding_with_squared_strings)

src/onlinePlatform/codewars/5kyu/coding_with_squared_strings.cc

@@ -0,0 +1,49 @@
+// https://www.codewars.com/kata/56fcc393c5957c666900024d/train/cpp
+
+#include <string>
+#include <vector>
+
+#include <cmath>
+#include <numeric> // For std::accumulate
+
+std::string joinStringVector(const std::vector<std::string> &strings, const std::string &delimiter) {
+    if (strings.empty()) {
+        return "";
+    }
+    return std::accumulate(std::next(strings.begin()), strings.end(), strings[0],
+                           [&](const std::string &a, const std::string &b) {
+                               return a + delimiter + b;
+                           });
+}
+
+std::string joinVectorCharVector(const std::vector<std::vector<char> > &strings, const std::string &delimiter) {
+    if (strings.empty()) {
+        return "";
+    }
+
+    std::vector<std::string> v;
+
+
+    return std::accumulate(std::next(strings.begin()), strings.end(), strings[0],
+                           [&](const std::string &a, const std::string &b) {
+                               return a + delimiter + b;
+                           });
+}
+
+char FILLER_CHAR = (char) 11;
+std::string FILLER(1, FILLER_CHAR);
+
+class CodeSqStrings {
+public:
+    static std::string code(const std::string &strng) {
+        long n = std::ceil(std::sqrt(strng.length()));
+
+        std::vector temp(n, std::vector(n, FILLER_CHAR));
+
+        return joinStringVector(temp, "\n");
+    }
+
+    static std::string decode(const std::string &strng) {
+        return "";
+    }
+};

src/onlinePlatform/codewars/5kyu/coding_with_squared_strings_google_test.cc

@@ -0,0 +1,24 @@
+#include <gtest/gtest.h>
+#include <string>
+#include <vector>
+
+#include "coding_with_squared_strings.cc"
+
+TEST(CodingWithSquaredStrings, Tests_CodeDecode) {
+    std::string d = "What do you remember? When I looked at his streaky glasses, I wanted "
+    "to leave him. And before that? He stole those cherries for me at midnight. We were walking "
+    "in the rain and I loved him. And before that? I saw him coming "
+    "toward me that time at the picnic, edgy, foreign.";
+    std::string s = "\013ctg?.nadr d gdbW\n\013,i    lnis tl eh\n\013 mtIAakietboaara\n\013eeo nnigsoe st?t\n\013d wsddnh lfls   \n\013gaaa  gtfeoeehWd\n"
+    "\013ytrwbI .o rasiho\n\013, d e i rtev,se \n\013 t hflnW h e  ny\n\013fhmioo emot Is o\n\013oeemrvt eshh tIu\n\013r   eehw eaiwr  \n"
+    "\013eptc deea tmaelr\n\013iihot  rtc?.naoe\n\013gcamhhre h  tkom\n\013nntiaia meHAeyke\n\013.i ntmiwirend em";
+    EXPECT_EQ(CodeSqStrings::code(d), s);
+
+    d = "Some say the world will end in fire, Some say in ice. From what I've tasted of desire "
+    "I hold with those who favor fire. But if it had to perish twice, I think I know enough of hate"
+    " To say that for destruction ice Is also great And would suffice.";
+    s = "fa  h ttrheI ilS\nitifakw   s'irdo\nc cotnihftivce m\neAereocaihree,we\n.n   wedroe . i \n\013dIdT , es t Sls\n\013 seoe t.eIaFola\n"
+    "\013w s nIo   srm y\n\013oatso  Bwhtoee \n\013ulrautpuhoem nt\n\013lsuyghetold sdh\n\013doc hir  d wa e\n\013  tt niif ohyi \n\013sgihoksfawfa nw\n"
+    "\013uroaf h vi ti o\n\013fent I iotd nfr";
+    EXPECT_EQ(CodeSqStrings::code(d), s);
+}