Colorful Graph: http://codeforces.com/contest/246/problem/D
Colorful Graph: http://codeforces.com/contest/246/problem/D

paramsingh/codechef-solutions,paramsingh/codechef-solutions,paramsingh/codechef-solutions,paramsingh/cp,paramsingh/cp,paramsingh/cp,paramsingh/cp,paramsingh/codechef-solutions,paramsingh/cp