Driver Code
int main ( ) { vector < vector < int > > mat = { { 1 , 1 , 0 , 0 , 0 } , { 1 , 1 , 0 , 1 , 1 } , { 1 , 0 , 0 , 1 , 1 } , { 1 , 0 , 0 , 0 , 0 } , { 0 , 0 , 1 , 1 , 1 } } ; sizeOfConnections ( mat ) ; return 0 ; }