这题"灰常"简单,我也就花了2分钟而已

include <bits/stdc++.h>

using namespace std; int q[101]; int main(){

int m, n;
scanf("%d%*c%d", &m, &n);
printf("%d/%d=0.", m, n);
for(int i = 1; i <= 100; i++){
	m *= 10;
	q[i] = m/n;
	m = m % n;
}
for(int i = 1; i <= 100; i++){
	cout << q[i];
}
return 0;

}