[Sync Iteration] cpp/food-chain/1

solutions/cpp/food-chain/1/food_chain.cpp

@@ -0,0 +1,58 @@
+#include "food_chain.h"
+#include <sstream>
+
+using namespace std;
+
+namespace food_chain {
+
+const vector<Animal> data = {
+    {"fly", ""},
+    {"spider", "It wriggled and jiggled and tickled inside her.\n"},
+    {"bird", "How absurd to swallow a bird!\n"},
+    {"cat", "Imagine that, to swallow a cat!\n"},
+    {"dog", "What a hog, to swallow a dog!\n"},
+    {"goat", "Just opened her throat and swallowed a goat!\n"},
+    {"cow", "I don't know how she swallowed a cow!\n"},
+    {"horse", "She's dead, of course!\n"}
+};
+
+string verse(int number) {
+    int idx = number - 1;
+    ostringstream ss;
+
+    ss << "I know an old lady who swallowed a " << data[idx].name << ".\n";
+    ss << data[idx].reaction;
+
+    if (number == 8) {
+        return ss.str();
+    }
+
+    for (int i = idx; i > 0; --i) {
+        ss << "She swallowed the " << data[i].name << " to catch the " << data[i - 1].name;
+        if (i - 1 == 1) {
+            ss << " that wriggled and jiggled and tickled inside her";
+        }
+        ss << ".\n";
+    }
+
+    ss << "I don't know why she swallowed the fly. Perhaps she'll die.\n";
+
+    return ss.str();
+}
+
+string verses(int start, int end) {
+    ostringstream ss;
+
+    for (int i = start; i <= end; ++i) {
+        ss << verse(i);
+        ss << "\n";
+    }
+
+    return ss.str();
+}
+
+std::string sing() {
+    return verses(1, 8);
+}
+
+}

solutions/cpp/food-chain/1/food_chain.h

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+#pragma once
+#include <string>
+#include <vector>
+
+namespace food_chain {
+
+    struct Animal {
+        std::string name;
+        std::string reaction;
+    };
+
+    // Devuelve una sola estrofa (1 a 8)
+    std::string verse(int number);
+
+    // Devuelve un rango de estrofa
+    std::string verses(int start, int end);
+
+    // Devuelve la canción completa
+    std::string sing();
+
+}