When I run my this program, after day 18 it gives me negative numbers. Where it should be positive. Can someone tell me why?
I'm just preparing for my test.
Code:#include <stdio.h></stdio.h> int main () { int loop_counter = 0; int algea = 1000000; int sum = 0; while (loop_counter<150) { sum=sum*1.5+algea; loop_counter= loop_counter+1; printf ("Day %d\t Total algea %d\n",loop_counter, sum); } return 0; }
You're probably trying to store a value that's too big for an int to deal with. Try declaring sum as a double instead.
You need to do this anyway, because multiplying by 1.5 is floating point arithmetic.
Code:while(!asleep) { sheep++; }
You are probably just exceeding the range of int. One way out would be to use a long long int instead. Another way out is to use a double, which may be more sensible since you are converting from double to int here (and truncating) anyway.
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
k, got it fixed, thank you so much.
