Rewrite the following code using the if-else statement:
int m = 400; double ch = (m>300) ? (m / 10.0) * 2 : (m / 20.0) - 2;
int m = 400; double ch = 0.0; if(m > 300) ch = (m / 10.0) * 2; else ch = (m / 20.0) - 2;