Why is it that when I try to withdraw the amount, it does not give out what I need?

Question

C++ / C#

I tried to write a program, and there, when I try to display the sum of a row of a matrix entered in an array, it gives this: elements in a string
Here is a piece of code to find the sum of strings and write them into a separate array

for (i = 1; i <= m; i++) 
  {                              
    for (j = 1; j <= n; j++)
      summ[i] += ar[i][j];

Answer 1

The code is not enough, but I think that you do not initialize summ to zero