bill total value – codeforce 727b

#include <vector>
#include <string>
using namespace std;
const double epsilon = 0.00001;
int (int x) {
	if (x == 0) return 1;
	int n = 0;
	while (x > 0) {
		n ++;
		x = x / 10;
	}
	return n;
}
vector<int> v;
vector<int> w;
double solve() {
	if (v.size() == 1)
		return v[0];
	double tmp = 0.0;
	for (int i = 0; i < v.size()-1; i++)
		tmp = tmp*1000 + v[i];
	
	//cout << v[v.size()-1] << endl;
	//cout << f(32) << endl;
	//cout << w[v.size()-1] << endl;
	if (w[v.size()-1] <= 2) {
		//cout << "----> " << v[v.size()-1] << endl;
		tmp += 0.01 * v[v.size()-1];
	}
	else tmp = tmp * 1000 + v[v.size()-1];
	//cout << "return " << tmp << endl;
	return tmp;
}
void out(double sum) {
	vector<int> v;
	int zhengshu = (int)sum;
	//cout << (sum-zhengshu)*100 + epsilon << endl;
	int xiaoshu = ((sum - zhengshu)*100) + epsilon;
	//cout << "xs : " << xiaoshu << endl;
	//cout << zhengshu << endl;
	if (zhengshu == 0)
		v.push_back(0);
	while (zhengshu > 0){
		v.push_back(zhengshu % 1000);
		zhengshu = zhengshu / 1000;
	}
	cout << v[v.size()-1];
	for (int i = v.size()-2; i >=0; i--){
		cout << ".";
		if (f(v[i]) == 1) cout << "00";
		else if (f(v[i]) == 2) cout << "0";
		cout << v[i];
	}
	if (xiaoshu == 0)
		cout << endl;
	else {
		cout << '.'; 
		if (f(xiaoshu) == 1) cout << '0';
		cout << xiaoshu << endl;
	}
}
int main() {
	string s;
	cin >> s;
	int len = s.length();
	int num = 0;
	double sum = 0.00;
	int len_num = 0;
	for (int i = 0; i < len; i++) {
		if ('0' <= s[i] && s[i] <= '9') {
			num = num * 10 + (s[i]-'0');
			len_num++;
		}
		if (s[i] == '.') {
			v.push_back(num);
			w.push_back(len_num);
			num = 0;  len_num = 0;
		}
		if ('a' <= s[i] && s[i] <= 'z') {
			v.push_back(num);
			w.push_back(len_num);
			sum += solve();
			num = 0; len_num = 0;
			v.clear(); w.clear();
		}
	}
	v.push_back(num);
	w.push_back(len_num);
	sum += solve();
	out(sum);
	//printf("%.2fn", sum);
	return 0;
}