deshaion

template <class T>
class Regression {
private:
    Matrix b_eq;

public:
    std::vector<double> predict(std::vector<T> &x) {
        std::vector<double> y(x.size());
        for (int i = 0; i < (int)x.size(); ++i) {
            double value = 1;

deshaion

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) {

deshaion

1 4
2 8
3 6
4 7
5 2
6 9
7 1
8 5
8 6
9 7

deshaion

#include <bits/stdc++.h>

#define S(x) scanf("%d", &x)
#define For(i, x, y) for(int i = x; i < y; ++i)
#define Fill(a, x) memset(a, x, sizeof(a))

void dout() { printf("\n"); }

template <typename Head, typename... Tail>
void dout(Head H, Tail... T) {