1 files changed, 62 insertions, 0 deletions
diff --git a/c,cc/sort2.cc b/c,cc/sort2.cc
new file mode 100644
index 0000000..3d64952
--- /dev/null
+++ b/c,cc/sort2.cc
@@ -0,0 +1,62 @@
+#include <iostream>
+#include <algorithm>
+#include <utility>
+#include <vector>
+
+using namespace std;
+
+
+struct X
+{
+  string n;
+  int a;
+  int b;
+};
+
+bool cmph(X a, X b)
+{
+  return (a.a+a.b) > (b.a+b.b);
+}
+
+bool cmpf(X a, X b)
+{
+  return (a.a-a.b) > (b.a-b.b);
+}
+
+int main(void)
+{
+  X a;
+  a.n = "a";
+  a.a = 1;
+  a.b = 2;
+
+  X b;
+  b.n = "b";
+  b.a = 2;
+  b.b = 0;
+
+  X c;
+  c.n = "c";
+  c.a = 4;
+  c.b = -1;
+
+  vector<X> v;
+  v.push_back(a);
+  v.push_back(b);
+  v.push_back(c);
+
+  for (unsigned i = 0; i < v.size(); i++) {
+    cout << v[i].n << " " << v[i].a << " " << v[i].b << endl;
+  }
+  sort(v.begin(), v.end(), cmph);
+  cout << endl;
+  for (unsigned i = 0; i < v.size(); i++) {
+    cout << v[i].n << " " << v[i].a << " " << v[i].b << endl;
+  }
+  sort(v.begin(), v.end(), cmpf);
+  cout << endl;
+  for (unsigned i = 0; i < v.size(); i++) {
+    cout << v[i].n << " " << v[i].a << " " << v[i].b << endl;
+  }
+}
+