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 <cstdio>

using namespace std;

void rec(int n, int w, int &v, int &rw,
        const int W, const int N,
        const int lv[], const int lw[])
{
    v = rw = 0;
    if (n == N) {
        // not remain any treasure
        v = 0;
        rw = w;
    } else if (w < lw[n]) {
        // cannot pack treasure[n]
        rec(n + 1, w, v, rw, W, N, lv, lw);
    } else {
        int v1, v2, w1, w2;

        // through treasure[n]
        rec(n + 1, w        , v, rw, W, N, lv, lw);
        v1 = v;
        w1 = rw;
        // pack treasure[n]
        rec(n + 1, w - lw[n], v, rw, W, N, lv, lw);
        v2 = v + lv[n];
        w2 = rw - lw[n];

        // which is good
        if (v1 > v2) {
            v = v1;
            rw = w1;
        } else if (v1 < v2) {
            v = v2;
            rw = w2;
        } else {
            if (w1 >= w2) {
                v = v1;
                rw = w1;
            } else {
                v = v2;
                rw = w2;
            }
        }
    }
    // printf("  (%d, %d, %d, %d) -> (%d, %d)\n", n, w, v, rw, v, rw);
}

int dp_v[1000][1000];
int dp_rw[1000][1000];

void rec_dp(int n, int w, int &v, int &rw,
        const int W, const int N,
        const int lv[], const int lw[])
{
    // memo'd
    if (dp_v[n][w] != 0 && dp_rw[n][w] != 0) {
        v = dp_v[n][w];
        rw = dp_rw[n][w];
        return;
    }

    v = rw = 0;
    if (n == N) {
        // not remain any treasure
        v = 0;
        rw = w;
    } else if (w < lw[n]) {
        // cannot pack treasure[n]
        rec_dp(n + 1, w, v, rw, W, N, lv, lw);
    } else {
        int v1, v2, w1, w2;

        // through treasure[n]
        rec_dp(n + 1, w        , v, rw, W, N, lv, lw);
        v1 = v;
        w1 = rw;
        // pack treasure[n]
        rec_dp(n + 1, w - lw[n], v, rw, W, N, lv, lw);
        v2 = v + lv[n];
        w2 = rw - lw[n];

        // which is good
        if (v1 > v2) {
            v = v1;
            rw = w1;
        } else if (v1 < v2) {
            v = v2;
            rw = w2;
        } else {
            if (w1 >= w2) {
                v = v1;
                rw = w1;
            } else {
                v = v2;
                rw = w2;
            }
        }
    }
    // printf("  (%d, %d, %d, %d) -> (%d, %d)\n", n, w, v, rw, v, rw);
    dp_v[n][w] = v;
    dp_rw[n][w] = rw;
}

int main()
{
    for (int icase = 1;; ++icase) {
        int W, N;
        scanf("%d", &W);
        if (W == 0)
            break;
        scanf("%d", &N);

        int v[1000], w[1000];
        for (int i = 0; i < N; ++i)
            scanf("%d,%d", &v[i], &w[i]);

        int retv, retw;
        for (int i = 0; i < 1000; ++i)
            for (int j = 0; j < 1000; ++j)
                dp_v[i][j] = dp_rw[i][j] = 0;
        rec_dp(0, W, retv, retw, W, N, v, w);

        printf("Case %d:\n%d\n%d\n", icase, retv, (W - retw) / 2);
    }

    return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <iomanip>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <bitset>
#include <stack>
#include <utility>
#include <numeric>
#include <algorithm>
#include <functional>
#include <cctype>
#include <complex>
#include <string>
#include <sstream>

using namespace std;

#define all(c) c.begin(),c.end()
#define rall(c) c.rbegin(),c.rend()
#define rep(i,n) for(int i=0;i<(n);i++)
#define tr(it,container) for(typeof(container.begin()) it = container.begin(); \
                             it != container.end(); ++it)
#define mp(a,b) make_pair((a),(b))
#define eq ==

typedef long long ll;
typedef complex<double> point;

// up right down left
const int dy[] = {-1,0,1,0};
const int dx[] = {0,1,0,-1};

const double EPS = 1e-9;
const int days[]     = {31,28,31,30,31,30,31,31,30,31,30,31};
const int daysleap[] = {31,29,31,30,31,30,31,31,30,31,30,31};

int main(){

    for(int loop = 1;;loop++){
        int N,W;
        cin >> W;
        if(W == 0) break;
        cin >> N;
        // value,weight
        vector<pair<int,int> > T(N);
        char c;
        rep(i,N) cin >> T[i].first >> c >> T[i].second;

        vector<vector<int> > DP(N,vector<int>(W+1));
        DP[0][T[0].second] = T[0].first;

        for(int i=1;i<N;i++){
            for(int j=0;j<W;j++){
                DP[i][j] = max(DP[i][j],DP[i-1][j]);
                if(j + T[i].second <= W){
                    DP[i][j+T[i].second] = max(DP[i][j+T[i].second],DP[i-1][j] + T[i].first);
                }
            }
        }

        int maxw=-1,maxk=-1;
        for(int i=0;i<=W;i++){
            if(maxk < DP[N-1][i]){
                maxk = DP[N-1][i];
                maxw = i;
            }
        }
        cout << "Case " << loop << ":" << endl;
        cout << maxk << endl << maxw << endl;
    }
    return 0;
}

C++: #include <iostream>
#include <vector>
#include <cstring>
#include <algorithm>

using namespace std;

int main(void){
	int i,j;
	int n,tmp;
	vector<int> v,w;
	int max_w;
	int cur=0,nxt=1;
	int dp[2][10001];
	int index;
	int tmp_max = 0;
	
	while(cin >> max_w){
		if(max_w == 0) break;
		memset(dp, 0, sizeof(dp));
		cur = 0;
		nxt = 1;
		cin >> n;
		for(i=0;i<n;i++){
			cin >> tmp;
			v.push_back(tmp);
			cin.ignore();
			cin >> tmp;
			w.push_back(tmp);
		}
		//f[^ÇÝÝ±±ÜÅ
		
		/*
		*  dp[i+1][j] := iÔÚÜÅÅd³jÉµ½Æ«ÌÅåÌ¿l
		*  dp[i+1][j] = max(dp[i][j], dp[i][j-w[i]] + v[i]) if(j > w[i])
		*  dp[i+1][j] = dp[i][j]
		*/
		for(i=0;i<n;i++){
			for(j=0;j<=max_w;j++){
				if(j >= w[i]){
					dp[nxt][j] = max(dp[cur][j], dp[cur][j-w[i]] + v[i]);
				}else{
					dp[nxt][j] = dp[cur][j];
				}
				//cout << dp[nxt][j] << " ";
			}
			nxt = 1 - nxt; //toggle
			cur = 1 - cur; //toggle
			//cout << endl;
		}
		
		cout << dp[cur][max_w] << endl;
		for(i=0;i<=max_w;i++){
			if(tmp_max < dp[cur][i]){
				tmp_max = dp[cur][i];
				index = i;
			}
		}
		cout << index << endl;
		v.clear();
		w.clear();
	}
	
	
}