CS153/hw4/hw4programs/reverse.oat

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int mod_ten (int n) {
if (n < 10) {
return n;
}
return mod_ten (n - 10);
}
int div_ten (int n) {
var c = 0;
while (n >= 10) {
n = n - 10;
c = c + 1;
}
return c;
}
int reversed (int n) {
var r = 0;
while (n != 0) {
var n_mod_ten = mod_ten(n);
r = (r * 10) + n_mod_ten;
n = div_ten(n);
}
return r;
}
int program (int argc, string[] argv) {
var n = 321;
return reversed(n);
}