In this data will be stored in form of rows and colums i.e. table. A list of items can be given one variable name using two subscripts and such a variable is called a two -subscripted variable or a two -dimensional array. Declaration syntax:- Data_type array_name[nr][nc]; nr->no.of rows nc->no.of columns Initialization:- int mat[2][3]=【{2,3,4}{5,6,7}】 i=0,j=0 1row,1col-->mat[0][0]=2; 1row,2col-->mat[0][1]=3; 1row,3col-->mat[0][2]=4; . . . 2row,3col-->mat[1][2]=7; In above example int is data type Mat is array name 2 is total no.of rows 3 is total no.of columns 2,3,4,5,6,7 is elements Program on two dimensional array (Addition of two matrix) #include <iostream.h> #include <conio.h> class arr { int a[10][10],b[10][10],i, j,nr,nc; public: void acc(); void add(); }; void arr::acc() { cout<<"enter no of roos and colomus \n"; cin>>nr>>nc; cout << "enter array values of a\n"; for (i = 0; i < nr;...
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