c# - Finding the column total in an array -

i have 1-dimensional array random elements, got through m*n grid. want find out row total , column total, present in it.

here how 1 dimensional array is: [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]

i want treat :

01 02 03 04 05

06 07 08 09 10

11 12 13 14 15

16 17 18 19 20

now want find reo total , column total. row total done follows:

for (int = 0; < totalrows; i++)         {             (int j = 0; j < totalcolumns; j++)             {                 rowtotal[i] += numbers[temp + j];             }                            temp += totalcolumns;         } 

i trying same column. here code:

for (int = 0; < totalcolumns; i++)         {             tempk = 0;              (int j = 0; j < totalrows; j++)             {                 blocktotal[i] += numbers[i+j+tempk];                tempk += totalcolumns;              }         } 

am not able column total, intended. please help.

you can both in same loop

for (int = 0; < totalrows; i++) {     (int j = 0; j < totalcolumns; j++)     {         rowtotal[i] += numbers[i * totalcolumns + j];         blocktotal[j] += numbers[i * totalcolumns + j];     }             }