有点绕

#include <iostream>
#include <cmath>
using namespace std;

int main() {
int n;
cin >> n;
int g0 = floor(n * 0.1);
int s0 = floor(n * 0.2);
int c0 = floor(n * 0.3);

int g1 = ceil(n * 0.1);
int s1 = ceil(n * 0.2);
int c1 = ceil(n * 0.3);

int gold_end0 = g0;
int silver_end0 = g0 + s0;
int copper_end0 = g0 + s0 + c0;

int gold_end1 = g1;
int silver_end1 = g1 + s1;
int copper_end1 = g1 + s1 + c1;

int a = gold_end1 - gold_end0;
int b = silver_end1 - silver_end0;
int c = copper_end1 - copper_end0;
cout << a << " " << b << " " << c << endl;
return 0;

}