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 <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
using namespace std;
#define MAX_N 1000
#define MAX_W 1000

int N, W;
int v[MAX_N], w[MAX_N];
int memo[MAX_N][MAX_W];
int resW;

int solve(int index, int weight){
  if(memo[index][weight] > 0) return memo[index][weight];

  int res;
  if(index == N) res = 0;
  else if(weight < w[index]) res = solve(index + 1, weight);
  else{
    res = max(solve(index + 1, weight), solve(index + 1, weight - w[index]) + v[index]);
  }
  return memo[index][weight] = res;
}

void askw(int ans, int weight, int index){
  if(ans == 0){
    if(weight < resW) resW = weight;
  }
  if(index == N) return;
  if(ans - v[index] >= 0){
    askw(ans - v[index], weight + w[index], index + 1);
    askw(ans, weight, index + 1);
  }
}

int main(void){
  int cnt = 0, ans;
  while(cin >> W, W){
    cnt++;
    cin >> N;
    for(int i = 0; i < N; i++){
      scanf("%d,%d", &v[i], &w[i]);
    }
    resW = 1e9;
    memset(memo, -1, sizeof(memo));
    ans = solve(0, W); askw(ans, 0, 0);
    cout << "Case " << cnt << ":" << endl;
    cout << ans << endl;
    cout << resW << endl;
  }
  return 0;
}

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

using namespace std;

int MAX = 1000*1000;

void solve(int n, int W, vector<int> v, vector<int> w) {
	int **dp = new int*[n];
	for (int i=0; i<n; i++) {
		dp[i] = new int[MAX+1];
		for (int j=0; j<MAX+1; j++)
			dp[i][j] = 0;
	}

	int ans = 0;

	dp[0][w[0]] = v[0];
	for (int i=1; i<n; i++) {
		for (int j = 0; j+w[i]<=W; j++) {
			dp[i][j] = max(dp[i][j], dp[i-1][j]);
			dp[i][j+w[i]] = max(dp[i-1][j+w[i]], dp[i-1][j]+v[i]);
		}
	}

	int val = 0, weight = 0;
	for (int j=0; j<=W; j++) {
		if (val < dp[n-1][j]) {
			val = dp[n-1][j];
			weight = j;
		}
	}

	cout << val << endl << weight << endl;

	for (int i=0; i<n; i++)
		delete [] dp[i];
	delete [] dp;
}

int main() {
	

	int n, W;
	int ver = 1;

	cin >> W;
	while (W!=0) {
		cin >> n;

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

		cout << "Case " << ver << ":" << endl;
		solve(n, W, v, w);

		cin >> W;
		ver++;
	}
}

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <map>
#include <sstream>
#include <functional>
#include <numeric>
#include <cmath>
#include <cstring>
#include <cstdio>
#include <queue>
#include <stack>
#include <set>

using namespace std;

#define ALL(co) co.begin(), co.end()
#define tpl(...) make_tuple(__VA_ARGS__)

typedef long long LL;
typedef pair<int, int> P; typedef pair<int, P> IP; typedef pair<P, P> PP;
typedef vector<int> Array; typedef vector<vector<int> > Array2;
typedef vector<LL> LArray; typedef vector<P> PArray; typedef vector<string> SArray;

const int INF = 1 << 29;
const LL LINF = 1LL << 60;

inline int getInt() { int itiv; return (cin >> itiv, itiv); }
template <typename T> void readAll(vector<T>& vec) { for (int i = 0, size = vec.size(); i < size; i++) cin >> vec[i]; }
template <typename T, typename U> void readAll(vector<pair<T, U> >& vec) { for (int i = 0, size = vec.size(); i < size; i++) cin >> vec[i].first >> vec[i].second; }
template < typename T > inline string toString( const T &a ){ ostringstream oss; oss << a; return oss.str(); };
inline bool between(int min, int max, int n) { return min <= n && n <= max; }
inline bool inRange(int begin, int end, int n) { return begin <= n && n < end; }
inline bool inRange(int size, int n) { return 0 <= n && n < size; }

int dx[] = { -1, 0, 1, 0 }, dy[] = { 0, -1, 0, 1 };
int dr[] = { 0, -1, 0, 1 }, dc[] = { -1, 0, 1, 0 };

int n, w;
const int M_W = 1001;
const int M_N = 1001;
P dp[M_N][M_W];
PArray arr;

P dfs(int idx, int weight)
{
	if(idx == n) return P(0, weight);
	if(dp[idx][weight] != P()) return dp[idx][weight];

	P v1 = P(-1, weight + arr[idx].second);
	if(v1.second <= w)
	{
		P ret = dfs(idx + 1, weight + arr[idx].second);
		v1.first = ret.first + arr[idx].first;
		v1.second = ret.second;
	}
	P v2 = dfs(idx + 1, weight);
	P ans;
	if(v1.first == v2.first)
	{
		ans.first = v1.first;
		ans.second = min(v1.second, v2.second);
	}
	else ans = max(v1, v2);
	return ans;
}

int main(void)
{
	ios::sync_with_stdio(false);
	int counter = 0;
	while(cin >> w && w)
	{
		counter++;
		cin >> n;
		arr.resize(n);
		char c;
		for (int i = 0; i < n; i++)
		{
			cin >> arr[i].first >> c >> arr[i].second;
		}
		memset(dp, 0, sizeof(dp));
		P ans = dfs(0, 0);
		
		cout << "Case " << counter << ":" << endl;
		cout << ans.first << endl;
		cout << ans.second << endl;
	}
	return 0;
}

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

#define SIZE 1000

int w, n;
int dp[SIZE + 1][SIZE + 1];
int va[SIZE], wa[SIZE];

int main() {
	int u = 0;
	while (cin >> w) {
		if (w == 0) break;
		cin >> n;
		u++;

		char t;
		for (int i = 0; i < n; i++) {
			cin >> va[i] >> t >> wa[i];
		}

		dp[1001][1001] = { 0 };
		for (int i = 1; i <= n; i++) {
			for (int j = 0; j <= w; j++) {
				if (wa[i] <= j) {
					dp[i][j] = max(dp[i - 1][j], dp[i - 1][j - wa[i]] + va[i]);
				} else {
					dp[i][j] = dp[i - 1][j];
				}
			}
		}

		int mv = 0, mw;
		for (int i = 0; i <= w; i++) {
			if (dp[n][i] > mv) {
				mv = dp[n][i];
				mw = i;
			}
		}
		cout << "Case " << u << ":" << endl;
		cout << mv << endl;
		cout << mw << endl;
	}
	return 0;
}