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help in a problem
http://mirror.codeforces.com/contest/437/problem/C
for second case if i remove 3 first cost=100 then remove 4 cost=100+100=200;(3 already removed) and 2 then will cost=200+100=300 and 1 cost=300+0=300; i find 300 ,but the result is 400, am i missing something ?
