SRM500 Div2 Easy(250) SRMCards
#include <vector> #include <set> using namespace std; class SRMCards{public: int maxTurns( vector <int> cards ) { set<int> C(cards.begin(),cards.end()); int t = 0; while ( ! C.empty() ) { int m = *C.begin(); C.erase(m); C.erase(m+1); t++; } return t; }};