Go: package main

import (
	"bufio"
	"fmt"
	"math"
	"os"
	"strconv"
	"strings"
)

const MaxW = 1000
const MaxN = 1000

type Tuple struct {
	Value  int
	Weight int
}

func nextLine(sc *bufio.Scanner) string {
	sc.Scan()
	return sc.Text()
}

func solve(w int, n int, vws []Tuple) Tuple {
	var dp [MaxN + 1][MaxW + 1]int

	for i := 0; i < n; i++ {
		for j:= w; j > 0; j-- {
			if j < vws[i].Weight {
				dp[i + 1][j] = dp[i][j]
			} else {
				dp[i + 1][j] = int(math.Max(float64(dp[i][j]), float64(dp[i][j - vws[i].Weight] + vws[i].Value)))
			}
		}
	}

	maxValue := dp[n][w]
	minWeight := w

	for j := w - 1; j > 0; j-- {
		if maxValue == dp[n][j] {
			minWeight = j
		} else {
			break
		}
	}

	return Tuple{Value: maxValue, Weight: minWeight}
}

func main() {
	var sc = bufio.NewScanner(os.Stdin)
	index := 1
	for {
		var w, n int
		w, _ = strconv.Atoi(nextLine(sc))
		if w == 0 {
			return
		}
		n, _ = strconv.Atoi(nextLine(sc))

		vws := make([]Tuple, n, n)
		for i := 0; i < n; i++ {
			array := strings.Split(nextLine(sc), ",")
			v, _ := strconv.Atoi(array[0])
			w, _ := strconv.Atoi(array[1])
			vws[i] = Tuple{Value: v, Weight: w}
		}

		t := solve(w, n, vws)
		fmt.Printf("Case %d:\n", index)
		fmt.Println(t.Value)
		fmt.Println(t.Weight)
		index++
	}
}

C++: #include <fstream>
#include <iostream>
#include <string>
#include <stdio.h>
#include <vector>
using namespace std;

#define READ_BY_TEXT false

vector<string> splitByDelimiter(string target, string delim) {
    std::string s = target;
    std::string delimiter = delim;
    size_t pos = 0;
    std::string token;
    vector<string> arr;
    while ((pos = s.find(delimiter)) != std::string::npos) {
        token = s.substr(0, pos);
        arr.push_back(token);
        s.erase(0, pos + delimiter.length());
    }
    arr.push_back(s);
    return arr;
}

int W, N;
int w[1000], v[1000];
int dp[1000][1000];
//vector<int> lines;
//int max_v, min_w;

int recursive(int i, int j) {
    
    if (dp[i][j] != -1) return dp[i][j];
    
    int ret;
    if (i >= N) {
        ret = 0;
    }
    else if (j < w[i]) {
        ret = recursive(i+1, j);
    }
    else {
        ret = max(recursive(i+1, j), recursive(i+1, j-w[i])+v[i]);
    }
    dp[i][j] = ret;
    
    return ret;
}

int calcMinWeight(int i, int j) {
    
    if (i >= N) {
        return 0;
    }
    
    int m_w = W;
    if (dp[i][j] == -1) {
        m_w = min(m_w, calcMinWeight(i+1, j));
    }
    else {
        m_w = min(m_w, calcMinWeight(i+1, j-w[i]) + w[i]);
    }
    
    return m_w;
}

int main() {
    
#if READ_BY_TEXT
    // Get values from test.txt
    std::ifstream ifs("test.txt");
    std::string str;
    if (ifs.fail())
    {
        std::cerr << "??±???" << std::endl;
        return -1;
    }
    getline(ifs, str);
    vector<string> words = splitByDelimiter(str, " ");
    num_d = stoi(words[0]);
    num_n = stoi(words[1]);
    for (int i=0; i<num_n; i++) {
        getline(ifs, str);
        lines.push_back(stoi(str));
    }
#else
    
    int case_v = 1;
    while (true) {
        cin >> W;
        if (!W) break;
        cin >> N;
        string input;
        for (int i = 0; i < N; i++) {
//            getline(cin, input);
            cin >> input;
            vector<string> words = splitByDelimiter(input, ",");
            v[i] = stoi(words[0]);
            w[i] = stoi(words[1]);
        }
        memset(dp, -1, sizeof(dp));
        
        // Solve
        int min_w = W;
        int max_v = recursive(0, W);
        for (int i = 0; i < N; i++) {
            for (int j = 0; j <= W; j++) {
//                cout << "dp[" << i << "][" << j << "] = " << dp[i][j] << endl;
                if (dp[i][j] == max_v) {
//                    cout << "i " << i << " j " << j << endl;
                    min_w = min(min_w, calcMinWeight(i, j));
//                    min_w = min(j, min_w);
                }
            }
        }
        
        cout << "Case " << case_v << ":" << endl;
        cout << max_v << endl;
        cout << min_w << endl;
        case_v++;
    }
    
//    string input;
//    getline(cin, input);
//    vector<string> words = splitByDelimiter(input, " ");
//    num_d = stoi(words[0]);
//    num_n = stoi(words[1]);
//    string input1;
//    for (int i=0; i<num_n; i++) {
//        getline(cin, input1);
//        lines.push_back(stoi(input1));
//    }
#endif
    
//    recursive(0, 0, "");
//    cout << result << endl;
    
    //    cout << "num_d = " << num_d << " num_n = " << num_n << "\n";
    //
    //    // Check parsed contents
    //    for (int i = 0; i < lines.size(); i++) {
    //        cout << "line[" << i << "] " << to_string(lines[i]) << "\n";
    //    }
    
    return 0;
}

C++: #include<iostream>
#include<vector>
int main()
{
	for (int i = 1;; i++)
	{
		int W;
		std::cin >> W;
		if (W == 0)
		{
			break;
		}
		int N;
		std::cin >> N;
		std::vector<std::vector<int>>table(N + 1, std::vector<int>(W + 1, -1));
		table[0][0] = 0;
		for (int n = 0; n < N; n++)
		{
			int vi, wi;
			char foo;
			std::cin >> vi >> foo >> wi;
			for (int w = 0; w <= W; w++)
			{
				if (table[n][w] != -1)
				{
					if (table[n + 1][w] < table[n][w])
					{
						table[n + 1][w] = table[n][w];
					}
					if (w + wi <= W)
					{
						table[n + 1][w + wi] = table[n][w] + vi;
					}
				}
			}
		}
		int max_value = 0;
		int weight;
		for (int w = 0; w <= W; w++)
		{
			if (table[N][w] > max_value)
			{
				max_value = table[N][w];
				weight = w;
			}
		}
		std::cout << "Case " << i << ":" << std::endl;
		std::cout << max_value << std::endl;
		std::cout << weight << std::endl;
	}
}

C++: #include <iostream>
#include <utility>
#include <vector>
using namespace std;

pair<int, int> hoge(vector< pair<int, int> > &c, int i, int ww, int w, int v)
{
    if (i  == int(c.size()) || ww < w) {
        return make_pair(w, v);
    }

    pair<int, int> c1, c2;
    c1 = hoge(c, i+1, ww, w + c[i].first, v + c[i].second);
    c2 = hoge(c, i+1, ww, w, v);

    if (ww < c1.first) {
        return c2;
    }
    else if (c1.second == c2.second) {
        return (c1.first < c2.first)? c1 : c2;
    }
    else {
        return (c1.second < c2.second)? c2 : c1;
    }
}

int main(int argc, char const* argv[])
{
    int ww, nn;
    for(int i = 0;; ++i) {
        vector< pair<int, int> > container;
        cin >> ww;
        if (ww == 0)
            break;
        cin >> nn;
        for (int i = 0; i < nn; ++i) {
            int v, w;
            char c;
            cin >> v >> c >> w;
            container.push_back(make_pair(w, v));
        }
        pair<int, int> r = hoge(container, 0, ww, 0, 0);
        cout << "Case " << i+1 << ":" << endl;
        cout << r.second << endl;
        cout << r.first  << endl;
    }
    
    return 0;
}