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# Struggling with pointers and DMA

Hey (again), Iâ€™m trying to complete the 36 end of module project for c++, and could someone please explain to me how to insert pointers and why my code doesnâ€™t work? #include <iostream> using namespace std; int main() { int ages[5]; for (int i = 0; i < 5; ++i) { cin >> ages[i]; } int min = ages[0]; for(int i = 0; i < 5; i++) { if(ages[i] < min) min = ages[i]; } float percentage = min; float discount = 50/100 * percentage; float sum = 50 - discount; cout << sum; return 0; }

2 Answers

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Dividing an integer by another integer in C++ will yield an integer as well, i.e. the decimal part is truncated. Therefore:
50 / 100 = 0
If you expect a decimal result, at least one operand has to be a floating point type, e.g.
50.0 / 100 = 0.5
50 / 100.0 = 0.5
50.0 / 100.0 = 0.5
Everything else should be fine. Why are you worrying about inserting pointers?

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cheers! i had been stuck on this for quite a while and i assumed that i needed to use pointers and DMA to solve it as it was the last few topics before the project