[1008] A÷B

Content

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Problem link : https://www.acmicpc.net/problem/1008

Problem

After receiving the two integers A and B, write a program that outputs A/B.

Input

A and B are given in the first line. (0 < A, B < 10)

Output

Print A/B on the first line. If the absolute or relative error between the actual correct answer and the output value is 10-9 or less, it is the correct answer.

Answer

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#include<iostream>
using namespace std;

int main() {
	double a, b = 0;
	cin >> a >> b;
	printf("%.9lf", a / b);
	return 0;
}

If normally using cout , there is an error even if using cout.precision(9);. The problem means to print out 9 significant digits, which is not 9 digits below the decimal point, so it may be wrong in solving the problem. We can do cout << fixed << setprecision(9) <<a/b <<endl; but I went with the simple way.