Update README.md

README.md

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 Simple GA implementation using C++ & Java
 If you get error due to large population in DevC++ then cosider running this here: https://www.onlinegdb.com/online_c++_compiler
 
+For DevC++ users, to get the C++11 support:
+     Goto Tools -> Compiler Options -> Check the 'Add following commands when calling the compiler -> Add the following text
+
+        -std=c++11
+
 # Problem Statement
 
 The advt alternatives for a company include TV, newspaper and radio. The cost of each medium with audience converge is given below:-