adding cs142 code

2016-04-06 20:45:34 -07:00
parent 552d456d53
commit 8e52ce1982
174 changed files with 14064 additions and 0 deletions
@@ -0,0 +1,46 @@
+#include <string>
+#include <sstream>
+#include <iostream>
+using namespace std;
+
+#include "tournament.h"
+
+int is_pow_2 (unsigned int x) {
+      return ((x != 0) && ((x & (~x + 1)) == x));
+}
+
+string tournament(garray & restaurants) {
+    if(not is_pow_2(restaurants.size)){
+        ostringstream o;
+        o << restaurants.size << " is not a power of 2";
+        throw o.str();
+    }
+
+    string selection;
+
+    bool finished = false;
+    while(not finished) {
+        garray tmp;
+        for(int i=0; i < restaurants.size / 2; i++) {
+            int a_i = 2*i;
+            int b_i = a_i + 1;
+            string a = restaurants.data[a_i];
+            string b = restaurants.data[b_i];
+            cout << "(a) " << a << " (b) " << b <<  endl;
+            cout << "your selection: ";
+            cin >> selection;
+            if(selection[0] == 'a')
+                tmp.add(a);
+            else
+                tmp.add(b);
+        }
+        if(tmp.size == 1) {
+            finished = true;
+            selection = tmp.data[0];
+        }
+        else {
+            restaurants = tmp;
+        }
+    }
+    return selection;
+}