#include<stdio.h>
#include<vector>
using namespace std;

vector<double> dilution_sequence(double initial_percent, double replacement_percent, int times){
	vector<double> percent_remaining;
	percent_remaining.reserve(times + 1);
	percent_remaining.push_back(initial_percent);
	for(int i = 1; i <= times; i++){
		percent_remaining.push_back(percent_remaining[i-1] * ((100.0 - replacement_percent) / 100.0));
	}
	double *vector_data = percent_remaining.data();
	return percent_remaining;
}

int main(){
	vector<double> dilutions = dilution_sequence(50, 90, 5);
	for(int i = 0; i <= 5; i++){
		printf("After %d rocks, we have %lf percent antifreeze\n", i, dilutions[i]);
	}
	return 0;
}