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 <vector>
#include <string>
#include <map>
#include <algorithm>
#include <cmath>
using namespace std;

#define REP(i,n) for(int (i)=0; (i)<(n); (i)++)
#define FOR(i,a,b) for(int (i)=(a); (i)<(b); (i)++)

int caseId = 1;

void solve42(int W) {
    cout << "Case " << caseId << ":" << endl;
    int N;
    cin >> N;
    int dp[1001] = {}; // dp[i]: maxvalue under weight i
    REP(i,N) {
        int v, w;
        scanf("%d,%d", &v, &w);
        for(int j = W; j >= w; j--) {
            dp[j] = max(dp[j], dp[j-w] + v);
        }
    }
    int value = 0, weight = 0;
    REP(i,W) {
        if (value < dp[i]) {
            value = dp[i];
            weight = i;
        }
    }
    cout << value << endl << weight << endl;
}

int main() {
    int W;
    while (cin >> W, W) {
        solve42(W);
        caseId++;
    }
    return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <cmath>
#include <utility>

#define ll (long long)
#define REP(i,n) for(int i = 0;i<(int)n;i++)
#define FOR(i,a,b) for(int i = (a);i < (b);i++)
#define RFOR(i,a,b) for(int i = (a);i>(b);i--)

using namespace std;


int main(void){
    
    /*(x,y) = (??????,??????)*/
    int max_w;
    int number;
    int answer = 0;
    int casecounter = 1;
    while(cin >> max_w,max_w)
    {
        int dp[1002][1002] = {0};
        int w[1002] = {0},v[1002] = {0};
        cin >> number;
        for(int i  =1; i<= number;i++)
            scanf("%d%*c%d",&v[i],&w[i]);
        
        for(int j = 1; j<= number;j++)
            for(int k = 0;k<=max_w;k++)
            {
              if(j == 1 && k>=w[j])
                  dp[j][k] = v[j];
              else if(k >= w[j])
                  dp[j][k] = v[j]+dp[j-1][k-w[j]];
              else
                  dp[j][k] = dp[j-1][k];
                
            }
        int max = 0;
        for(int i = 1;i<=max_w;i++)
        {
            if(max < dp[number][i])
            {
                answer = i;
                max = dp[number][i];
            }
            
        }
        printf("Case %d:\n",casecounter);
        printf("%d\n",dp[number][answer]);
        printf("%d\n",answer);
        casecounter++;
    }
    return 0;
    
}

C++: #include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
#define MAX 1001
typedef pair<int,int> P;

int dp[MAX][MAX],t,w,m;

void judge(vector<P> v){
   
    for(int i = 1 ; i <= m ; i++){
        for(int j = 1 ; j <= w ; j++){
            int k = j - v[i-1].first;
            if(k < 0){
                dp[i][j] = dp[i-1][j];
            }
            else{
                dp[i][j] = max(dp[i-1][j],dp[i-1][k]+v[i-1].second);
            }
        }
    }
    int ans_W=0,ans_C;
    for(int i = 0 ; i <= w ; i++){
        ans_W = max(ans_W,dp[m][i]);
    }
    for(int i = w ; i >= 0 ; i--){
        if(ans_W==dp[m][i]) ans_C = i;
    }
    
    cout << ans_W << endl;
    cout << ans_C << endl;
}

void print(){
    cout << "Case " << t++ << ":" << endl;
}

int main(){
    int val,wei;
    char ch;
    
    t = 1;
    while(cin >> w,w){
        cin >> m;
        vector<P> v;
        
        fill(dp[0],dp[MAX-1],0);
        
        print();
        for(int i = 1 ; i <= m ; i++){
            cin >> val >> ch >> wei;
            v.push_back(P(wei,val));
        }
        sort(v.begin(),v.end());
        judge(v);
    }
    
    return 0;
}

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

int a[1001] = { 0 };
int b[1001] = { 0 };
int w, n, mv, mw;
void solve(int W, int f, int sum) {
	f = min(f, n) + 1;
	for (int i = f; i < n; i++) {
		if (W - b[i] < 1) {
			mw = max(w - W, mw);
			mv = max(sum, mv);
			return;
		}
		solve(W - b[i], f, sum + a[i]);
	}
}

int main() {
	int u = 0;
	while (scanf("%d", &w)) {
		if (w == 0) break;
		scanf("%d", &n);

		mv = mw = 0; u++;
		for (int i = 0; i < n; i++) {
			scanf("%d,%d", &a[i], &b[i]);
		}

		solve(w, -1, 0);
		printf("Case %d:\n%d\n%d\n", u, mv, mw);
	}
	return 0;
}

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

struct treasure{
	int value;
	int weight;
};

bool comp(treasure t1, treasure t2){
	if(t1.weight <= t2.weight) return true;
	else return false;
}

int main(){
	int w;
	const int maxw = 10000;
	int count = 1;
	while(cin >> w){
		if(w == 0) break;
		int n;
		int cost[maxw + 1];
		int best[maxw + 1];
		for(int i = 0; i <= maxw; i++){
			cost[i] = 0;
			best[i] = 0;
		}
		vector<treasure> treasures;
		cin >> n;
		for(int i = 0; i < n; i++){
			treasure t;
			char c;
			cin >> t.value >> c >> t.weight;
			treasures.push_back(t);
		}
		for(int j = 0; j < n; j++){
			for(int k = 1; k <= w; k++)
				if(k >= treasures[j].weight)
					if(cost[k] < cost[k - treasures[j].weight] + treasures[j].value)
					{
						cost[k] = cost[k - treasures[j].weight] + treasures[j].value;
						best[k] = j;
					}
		}
		cout << "Case" << " " << count++ << ":" << endl;
		for(;w>0; w--) if(cost[w] != cost[w-1]) break;
		cout << cost[w] << endl;
		int total = 0;
		for(int l = w; l - treasures[best[l]].weight >= 0;){
			if(l - treasures[best[l]].weight >= 0){
				total += treasures[best[l]].weight;
				l -= treasures[best[l]].weight;
			}
		}
		cout << total << endl;
	}
	return 0;
}

C++: #include <iostream>
#include <vector>
#include <algorithm>
#include <string.h>

using namespace std;

typedef pair<int, int> obj;

int main(){
  int N, W, weight, value;
  char ch;
  int case_num = 1;

  while(1){
    cin >> W;
    if(W == 0) break;
    cin >> N;

    //printf("W = %d N = %d\n", W, N);

    vector<obj> obj_list;
    int dp[1010];
    memset(dp, -1, sizeof(dp));
    
    for(int i = 0; i < N; i++){
      cin >> value >> ch >> weight;
      obj_list.push_back(obj(value, weight));
      //printf("value = %d weight = %d\n", value, weight);
    }

    dp[0] = 0;

    for(int i = 0; i < N; i++){
      obj o = obj_list[i];

      for(int j = W; j >= 0; j--){
        if(dp[j] != -1){
          dp[j] = max(dp[j], dp[j]);
          if(j + o.second <= W){
            dp[j+o.second] = max(dp[j+o.second], dp[j] + o.first);
          }
        }
      }
    }
    int answer = 0;
    int answer_weight = 0;

    for(int i = 0; i <= W; i++){
      if(answer < dp[i]){
        answer = dp[i];
        answer_weight = i;
      }
    }

    cout << "Case " << case_num << ":" << endl;
    cout << answer << endl;
    cout << answer_weight << endl;

    case_num++;
  }

  return 0;
}