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 <sstream>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <ctime>
using namespace std;

typedef long long ll;
typedef pair<int, int> P;

#define all(c) (c).begin(), (c).end()
#define pb push_back
#define mp make_pair
#define EXIST(v,i) (find(all(v), i) != (v).end())
#define ERASE(v,i) (v).erase(remove(all(v), i), (v).end())
#define INDEX(v,i) (find(all(v), i) - (v).begin())
#define rep(i,n) for(int i = 0; i < (int)n; ++i)
#define debug(x) cerr << #x << " = " << (x) << endl;

inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

const int INF = 100000000;
const double PI = 3.14159265358979323846;
const double EPS = 1e-10;

int main() {
	int CaseSet = 1;
	for(int W; scanf(" %d", &W), W;) {
		int N; scanf(" %d", &N);
		vector<int> value(N);
		vector<int> weight(N);
		rep(i,N) scanf(" %d,%d", &value[i], &weight[i]);

		int dp[N][W+1];
		memset(dp, 0, sizeof dp);
		for(int j = weight[0]; j <= W; j++) dp[0][j] = value[0];
		for(int i = 1; i < N; i++) {
			for(int j = weight[i]; j <= W; j++) {
				int t = dp[i - 1][j - weight[i]] + value[i];
				if(dp[i][j] < t) {
					dp[i][j] = t;
				}
			}
		}

		int vans = *max_element(dp[N - 1], dp[N - 1] + W);
		int ind = find(dp[N - 1], dp[N - 1] + W, vans) - dp[N - 1];

		cout << "Case " << CaseSet++ << ":" <<endl;
		cout << vans << endl;
		cout << ind << endl;
	}
	return 0;
}

C++: 
// dpの練習
// dpでなく、愚直に組んだプログラミング
// ナップサック問題とほぼ同じ

#include <iostream>
#include <algorithm>
#include <cstring>

using namespace std;

int wei; // 持てる最大の重さ
int n; // お宝の数
int v[1001]; // お宝の価値
int w[1001]; // お宝の重さ
 // グローバル配列は0で初期化されている
int dp[1001][1001]; //メモテーブル

int max_value(int i, int j) {
  int value;

  if( dp[i][j] >= 0 ){
    return dp[i][j];
    //すでに１回は調べている
  }
 
  if (i == n) {
    // 品物がもう残っていないときは、価値の和の最大値は0で確定
    //もうお宝がないつまり、価値は0
    value = 0;
  } else if (j < w[i]) {
    //風呂敷が持てる重さを超えてしまう
    // 残りの容量が足りず品物iを入れられないので、入れないパターンだけ処理
    // i+1 以降の品物のみを使ったときの最大値をそのままこの場合の最大値にする
    value = max_value(i + 1, j);
  } else {
    //左がお宝を入れない、右がお宝を入れた場合
    // 品物iを入れるか入れないか選べるので、両方試して価値の和が大きい方を選ぶ
    value = max( max_value(i + 1, j), max_value(i + 1, j - w[i]) + v[i] );
  } 
  return dp[i][j] = value;
  //メモに記憶させる
}

void max_weight( int ans ){

  int w_min;
   
  for (int i = wei -1 ; i >= 0 ; i--){
    if( ans != max_value( 0 , i ) ){
         w_min = i + 1;
         break;
    }
  }
  cout << w_min << endl;  
}


int main(void){

  int cnt = 1;
  while( cin >> wei ){
    memset( dp , -1 , sizeof(dp) );
    //まだ調べてないところを-1で初期化
    if( wei == 0 )break;
    cin >> n;
    char ten;
    for( int i = 0 ; i < n ; i++ ){
      cin >> v[i] >> ten >> w[i];
    }
    cout << "Case " << cnt << ":" << endl;
    int ans = max_value( 0 , wei );
    cout << ans << endl;
    max_weight(ans);
    cnt++;
  }
  return 0;
}

C++: #include <bits/stdc++.h>
#define loop(i, a, n) for (int i = (a); i < (n); i++)
#define rep(i, n) loop(i, 0, n)
constexpr int INF = 1000000000;
template<typename A, typename B> bool cmin(A &a, const B &b) { return a > b ? (a = b, true) : false; }
using namespace std;

using Weight = int;
struct Edge {
  int src, dst;
  Weight weight;
  Edge(const int s = 0, const int d = 0, const Weight w = 0) : src(s), dst(d), weight(w) {}
};

using Edges = std::vector<Edge>;

class Graph {
  std::vector<Edges> g;

public:
  Graph(const int size = 0) : g(size) {}
  size_t size() const { return g.size(); }
  const Edges &operator[](const int i) const { return g[i]; }
  void addArc(const int src, const int dst, const Weight w = 1) { g[src].emplace_back(src, dst, w); }
  void addEdge(const int node1, const int node2, const Weight w = 1) {
    addArc(node1, node2, w);
    addArc(node2, node1, w);
  }
};

vector<Weight> dijkstra(const Graph &g, const int src) {
  using state = pair<Weight, int>;
  priority_queue<state, vector<state>, greater<state>> q;
  vector<Weight> dist(g.size(), INF);
  dist[src] = 0;
  q.emplace(0, src);
  while (q.size()) {
    Weight d;
    int v;
    tie(d, v) = q.top();
    q.pop();
    if (dist[v] < d) continue;
    for (auto &e : g[v]) {
      if (cmin(dist[e.dst], dist[v] + e.weight)) q.emplace(dist[e.dst], e.dst);
    }
  }
  return dist;
}

int main() {
  int caseIndex = 0;
  int W;
  while (cin >> W, W) {
    cout << "Case " << ++caseIndex << ':' << endl;
    int N;
    cin >> N;
    Graph g((N + 1) * (W + 1));
    rep(i, W) g.addArc(i, i + 1, 0);
    rep(i, N) {
      int v, w;
      char gomi;
      cin >> v >> gomi >> w;
      rep(j, W + 1) {
        g.addArc(i * (W + 1) + j, (i + 1) * (W + 1) + j, 0);
        if (j + w <= W) g.addArc(i * (W + 1) + j, (i + 1) * (W + 1) + j + w, -v);
      }
    }
    vector<Weight> &&dist = dijkstra(g, 0);
    int maxi = dist.back();
    cout << -maxi << endl;
    rep(i, W + 1) if (maxi == dist[N * (W + 1) + i]) {
      cout << i << endl;
      break;
    }
  }
}

C++: #include <cstdio>

#include <cstdlib>

#include <cmath>

#include <climits>

#include <cfloat>

#include <map>

#include <utility>

#include <set>

#include <iostream>

#include <memory>

#include <string>

#include <vector>

#include <algorithm>

#include <functional>

#include <sstream>

#include <complex>

#include <stack>

#include <queue>

#include <numeric>

#include <cstring>



#define rep(i, n) for(int i = 0; i < (n); i++)

#define pb push_back



using namespace std;



typedef long long ll;

typedef pair<int, int> P;

typedef vector<int> vi;

typedef vector<vi> vvi;



const int INF = 1 << 29;

const double EPS = 1e-9;

const int MAX_N = 1000;

const int MAX_W = 1000;



int dp[MAX_N + 1][MAX_W + 1];

int dpw[MAX_N + 1][MAX_W + 1];



int main(){

	int n, cap, ans_c = 0;

	int v[MAX_N], w[MAX_N];

	

	while(1){

		memset(dp, 0 , sizeof(dp));

		memset(dpw, 0, sizeof(dpw));

		scanf("%d", &cap);

		if(cap == 0) break;

		scanf("%d", &n);



		rep(i, n){

			scanf("%d,%d\n",&v[i],&w[i]);

		}



		for(int i = 0; i < n; i++){

			for(int j = 0; j <= cap; j++){

				if(j < w[i]){

					dp[i+1][j] = dp[i][j];

					dpw[i+1][j] = dpw[i][j];

				}else{

					dp[i+1][j] = max(dp[i][j], dp[i][j - w[i]] + v[i]);

					if(dp[i+1][j] == dp[i][j - w[i]] +v[i]){

						dpw[i+1][j] = dpw[i][j-w[i]] + w[i];

					}else{

						dpw[i+1][j] = dpw[i][j];

					}

				}

			}

		}

		ans_c++;

		printf("Case %d:\n%d\n%d\n", ans_c , dp[n][cap], dpw[n][cap]);

	}

}