TopCoder is a portal for coders/programmers preparing for competitions like ACM ICPC,etc. TopCoder Registration. After registering you need to download the TopCoder applet. TopCoder Applet. Click on TCHS logo to download the applet. And select Run/Install. After Download is complete, open the 'ContestAppletProd.jnlp' file from the Download location. Now you will see the TopCoder portal, … Continue reading Getting Started With TopCoder.