Initial commit: Pi calculation benchmark with 34 languages

- Added implementations for: bash, brainfuck, c, cpp, crystal, csharp, d, dart, elixir, erlang, fortran, go, haskell, java, javascript, julia, kotlin, objective-c, scala, typescript, lua, nim, odin, perl, php, python, r, ruby, rust, swift, zig, assembly, vimscript, wolfram
- All implementations use Machin's formula: π/4 = 4*arctan(1/5) - arctan(1/239)
- Build system with ./build.sh, test system with ./test.sh
- Performance testing with ./run_all.sh
- Comprehensive README.md explaining performance differences
- Test framework verifies correctness against known π values

r/cmd/build.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# R Build Script
+
+SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$SCRIPT_DIR"
+
+echo "=== R Build ==="
+echo ""
+
+# Check for Rscript
+if ! command -v Rscript &> /dev/null; then
+    echo "✗ R hittades inte!"
+    echo "  Installera R: brew install r"
+    exit 1
+fi
+
+echo "✓ R är installerat"
+echo "  Script: src/print_hej.R"
+echo ""
+
+# Skapa wrapper script
+mkdir -p bin
+cat > bin/print_hej << 'EOF'
+#!/bin/bash
+SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$SCRIPT_DIR"
+Rscript src/print_hej.R "$@"
+EOF
+chmod +x bin/print_hej
+
+echo "Wrapper script skapad: bin/print_hej"
+echo ""
+echo "För att köra:"
+echo "  ./bin/print_hej <decimaler>"