Add C++ solutions

2 files changed, 62 insertions, 0 deletions

diff --git a/challenge-252/e-choroba/cpp/ch-1.cpp b/challenge-252/e-choroba/cpp/ch-1.cpp
new file mode 100644
index 0000000000..ec85e36bf0
--- /dev/null
+++ b/challenge-252/e-choroba/cpp/ch-1.cpp
@@ -0,0 +1,21 @@
+#include <cassert>
+#include <cmath>
+#include <iostream>
+#include <vector>
+
+long special_numbers(std::vector<long> ints) {
+    size_t s = ints.size();
+    long r = 0;
+    for (size_t i = 0; i <= s; ++i) {
+        if (s % (i + 1) == 0) {
+            r += std::pow(ints[i], 2);
+        }
+    }
+    return r;
+}
+
+int main(int argc, char* argv[]) {
+    assert(special_numbers({1, 2, 3, 4}) == 21);
+    assert(special_numbers({2, 7, 1, 19, 18, 3}) == 63);
+    std::cout << "Ok." << std::endl;
+}
diff --git a/challenge-252/e-choroba/cpp/ch-2.cpp b/challenge-252/e-choroba/cpp/ch-2.cpp
new file mode 100644
index 0000000000..e10d27aae6
--- /dev/null
+++ b/challenge-252/e-choroba/cpp/ch-2.cpp
@@ -0,0 +1,41 @@
+#include <cassert>
+#include <iostream>
+#include <vector>
+
+std::vector<int> unique_sum_zero(int n) {
+    std::vector<int> v;
+    if (n % 2) {
+        v = {0};
+    }
+    for (int i = 1; i <= n / 2; ++i) {
+        v.insert(v.end(), {i, -i});
+    }
+    return v;
+}
+
+int main(int argc, char* argv[]) {
+
+    auto u1 = unique_sum_zero(1);
+    assert(u1.size() == 1);
+    assert(u1[0] == 0);
+
+    auto u2 = unique_sum_zero(2);
+    assert(u2.size() == 2);
+    assert(u2[0] == 1);
+    assert(u2[1] == -1);
+
+    auto u3 = unique_sum_zero(3);
+    assert(u3.size() == 3);
+    assert(u3[0] == 0);
+    assert(u3[1] == 1);
+    assert(u3[2] == -1);
+
+    auto u4 = unique_sum_zero(4);
+    assert(u4.size() == 4);
+    assert(u4[0] == 1);
+    assert(u4[1] == -1);
+    assert(u4[2] == 2);
+    assert(u4[3] == -2);
+
+    std::cout << "Ok." << std::endl;
+}