Codechef Operations in a matrix
/* Sakshi had a matrix with N N rows (numbered 1 1 through N N ) and M M columns (numbered 1 1 through M M ). Initially, all cells of this matrix contained 0 0 -s. Let's denote a cell in row r r and column c c by ( r , c ) ( r , c ) . Sakshi is well-known for troubling others. This time, her friends Nikki and Mansi planned to take revenge and teach her a lesson, so they changed her matrix by performing the following operation Q Q times: Choose any valid cell ( x , y ) ( x , y ) . Add 1 1 to all the cells in row x x . Add 1 1 to all the cells in column y y . For each valid i i , the cell chosen in the i i -th operation was ( X i , Y i ) ( X i , Y i ) . Nikki and Mansi challenged Sakshi to find the number of cells in the resulting matrix which contain odd integers. Sakshi is not good at math, since she has spent...