Merge pull request #723 from VARADSP/patch-1

sortcom.cpp

Author: t2013anurag

sorting/sort_strings/sortcom.cpp

@@ -0,0 +1,59 @@
+//sorts array of strings with user written comparison function
+#include<iostream>
+#include<string.h>
+#include<functional>
+#include<algorithm>
+using namespace std;
+char *names[] = {"George","Penny","Estelle","Don","Mike","Bob"};
+bool alpha_comp(char *,char*);
+string names1[] = {"George","Penny","Estelle","Don","Mike","Bob"};//Input Strings Array For Sorting
+bool isDon(string name)
+{
+    return name=="Don";
+}
+double in_to_cm(double s)
+{
+    return (s * 2.54);
+}
+int main()
+{
+    double centi[7];
+    double inches[] = {3.5,6.4,6,7,8};//Input Values In Inches For Converting To Centimetres
+    transform(inches,inches+7,centi,in_to_cm);
+    for(int i=0;i<7;i++)
+        cout << centi[i] << "\t";
+    cout << endl;
+    string *ptr;
+    ptr=find_if(names1,names1+5,isDon);
+    if(ptr==names1+5)
+        cout << "Don is not on the list \n";
+    else
+    {
+        cout << "Don is element " << (ptr-names1) << " on the list\n";
+    }
+    sort(names,names+6,alpha_comp);
+    for(int i=0;i<6;i++)
+        cout << names[i] << endl;
+    return 0;
+}
+bool alpha_comp(char *s1,char *s2)
+{
+    return (strcmp(s1,s2)<0)?true:false;
+}
+
+
+// Input:
+//sorts these string values
+// string names1[] = {"George","Penny","Estelle","Don","Mike","Bob"};
+//converts these inches to centimetres
+// double inches[] = {3.5,6.4,6,7,8};
+
+// Output:
+// 8.89 16.256 15.24 17.78 20.32 5.34025e-317 22.5806
+// Don is element 3 on the list
+// Bob
+// Don
+// Estelle
+// George
+// Mike
+// Penny