Consider the following program: #include

main()

{

char s[10],t[10];

int i,j;

strcpy(s,"frog");

for (i=0; i

t[i]=s[i];

j=0;

for (i=0; i

j=j+(int)t[i];

printf("%d ",j); The expected output of the program is 430, but it often produces a different result. The result seems to change depending on when the program is run, or on which computer it is run. Why?