Tricks: here(Thanks to vaibhav1997)

awesome list: here(Thanks to lnishan)

competitive programming tutorials: here

a2oj: here

problem classifier(spoj) :here

code library :here

calendar :here

about typing speed :here(Thanks to Penguin)

some intense templates : here(Thanks to MinakoKojima)

Topic wise Coding Resources : here (Thanks to hsk)

Way to practice competitive programming :here (Thanks to E869120)

DP tutorial : here(Thanks to Ahnaf.Shahriar.Asif)

// Share this list and comment more useful links like this which needs serious attention of noob like me.