init commit

contests/4contest/1.cpp

@@ -0,0 +1,15 @@
+#include <vector>
+#include <cstdint>
+
+void process(const std::vector<uint64_t>& from, std::vector<uint64_t>& into, int step) {
+    auto iterf = from.begin();
+    auto itert = into.rbegin();
+
+    while (iterf < from.end() && itert != into.rend()) {
+        *itert += *iterf;
+        ++itert;
+        iterf += step;
+    }
+
+    return;
+}