SRM542 Div2 Easy(250) WorkingRabbits
#include <string> #include <vector> using namespace std; class WorkingRabbits{public: double getEfficiency( vector <string> profit ) { int n = (int)profit.size(); int s = 0; int c = 0; for ( int i=0; i<n; i++ ) for ( int j=i+1; j<n; j++ ) s += profit[i][j]-'0', c++; return (double)s/c; }};