SRM487 Div2 Easy(250) BunnyExamAfter
#include <string> using namespace std; class BunnyExamAfter{public: int getMaximum( string black, string gray, string white ) { int N = (int)black.size(); int ans = 0; for ( int i=0; i<N; i++ ) { if ( black[i] != gray[i] || black[i] != white[i] ) ans++; if ( black[i] != gray[i] && gray[i] == white[i] ) ans++; } return ans; }};