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>
#include<iostream>
using namespace std;

typedef struct{
  int g;
  int ye;
}SET;

int main(){
  
  int n,w;
  int cnt=1;
  while(1){
    
    scanf("%d",&w);
    if(w==0)break;
    scanf("%d",&n);
    SET data[1111]={0}; 
    int memo[1111][1111]={{0}};
    int max_y=0;
    int max_g=1111;
    
    for(int i=0;i<n;i++){
      scanf("%d,%d",&data[i].ye,&data[i].g);
    }
    memo[0][data[0].g]=data[0].ye;
    for(int i=1;i<n;i++){
      if(data[i].ye>memo[i-1][data[i].g]){
	memo[i][data[i].g]=data[i].ye;
      }
      for(int j=1;j<=w;j++){
	if(memo[i-1][j]>0){
	  if(memo[i-1][j]>memo[i][j]){
	    memo[i][j]=memo[i-1][j];
	  }
	  if(j+data[i].g<=w){
	    memo[i][j+data[i].g]=memo[i-1][j]+data[i].ye;
	  }
	}
	if(max_y<=memo[i][j]){
	  if(max_y==memo[i][j]){
	    if(max_g>j){
	      max_g=j;
	    }
	  }
	  else{
	    max_g=j;
	    max_y=memo[i][j];
	  }
	}
      }    
    }
    printf("Case %d:\n%d\n%d\n",cnt,max_y,max_g);
    cnt++;
  }
}

C++: #include<iostream>

using namespace std;

const int MAX_W = 1001;
const int MAX_T = 1001;

int dp[MAX_T][MAX_W];

void init(){
  for(int i = 0; i < MAX_T; i++){
    fill(dp[i],dp[i]+MAX_W,0);
  }
}

int main(){
  int rev = 0, max;
  while(cin >> max && max){
    rev++;
    init();
    int num;
    cin >> num;
    for(int i = 1; i <= num; i++){
      char trash;
      int price, weight;
      cin >> price >> trash >> weight;
      for(int j = 1; j <= max; j++){
	if(weight <= j){
	  dp[i][j] = price;
	  if(i)dp[i][j]+= dp[i-1][j-weight];
	}
      }
    }
    int ablep = 0, ablew = 10000;
    for(int i = 0; i <= num; i++){
      for(int j = 0; j <= max; j++){
	if(ablep < dp[i][j]){
	  ablep = dp[i][j];
	  ablew = j;
	}else if(ablep == dp[i][j]){
	  if(ablew > j) ablew = j;
	}
      }
    }
    cout << "Case " << rev << ":" << endl;
    cout << ablep << endl << ablew << endl;

  }
  return 0;
}

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

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define llong long long
#define pb(a) push_back(a)
#define INF 1000000000
using namespace std;
typedef pair<int, int> P;
typedef pair<llong, llong> LP;
typedef pair<int, P> PP;
typedef pair<llong, LP> LPP;




int main(){


    int W,N;
    char c;
    int times = 1;

    while(cin >> W){

        
        if(W == 0){
            return 0;
        }
        cin >> N;
        vector<int> v(N),w(N);
    
        REP(i,N){
            cin >> v[i] >> c >> w[i];
            //cout << v[i] << " " << w[i] << endl;
        }

        int dp[1010][1010];
        memset(dp,0,sizeof(dp));
        /*REP(i,N+1){
            REP(j,W+1){
                dp[i][j] = -INF;
            }
        }
        REP(i,W+1){
            dp[0][i] = 0;
        }*/
        
        for(int i = 1;i <= N;i++){
            for(int j = 0;j <= W;j++){

                if(j >= w[i-1]){
                    dp[i][j] = max(dp[i-1][j] , dp[i-1][j - w[i-1]] + v[i-1]  );
                }else{
                    dp[i][j] = dp[i-1][j];
                }
            }
        }
        int weight = 0;
        int value = 0;
        for(int i = 0;i < W;i++){

            if(weight < dp[N][i]){
                weight = i;
                value = dp[N][i];
            }
        }

        printf("Case %d:\n%d\n%d\n",times++,value,weight);
    }
    return 0;
}

C++: #include <iostream>	
#include <vector>
#include <array>
#include <map>
#include <algorithm>
typedef unsigned long long LL;

typedef struct tuple{
    LL weight;
    LL value;
} tuple;

bool operator<(const tuple& t1, const tuple& t2){ return t1.value < t2.value; }
bool operator==(const tuple& t1, const tuple& t2){ return t1.value == t2.value; }
tuple operator+(const tuple& t1, const tuple& t2){ return tuple {t1.weight + t2.weight, t1.value + t2.value};}

std::map<LL, std::map<LL, tuple>> dp{};
std::map<LL, std::map<LL, bool>> isdpable{};

tuple rec(const std::vector<tuple>& items, LL w, LL i = 0) {
    if (isdpable[i][w]) {
        return dp[i][w];
    }
    tuple retval;
    if (items.size() <= i) {
        retval = tuple{0,0};
    }
    else if (w < items.at(i).weight) {
        retval = rec(items, w, i + 1);    //i?????????????????????????????????
    } else {
        retval = std::max( rec(items, w - items[i].weight, i + 1) + items[i], //i???????????????????????????
                           rec(items, w, i + 1),                              //i?????????????????????????????????
                           [](auto a,auto b){
                               if (a == b) return a.weight > b.weight;
                               else return a < b;
                           });
    }
    dp[i][w] = retval;
    isdpable[i][w] = true;
    return retval;
}

void show_res(const tuple& resault) { 
    static LL i{1};
    std::cout << "Case " << i << ":" << std::endl;
    std::cout << resault.value << std::endl;
    std::cout << resault.weight << std::endl;
    i++;
}
void show_tup(const tuple& t) {
    std::cout << t.value << std::endl;
    std::cout << t.weight << std::endl;
}

int main(int argc, char const* argv[])
{
    for(;;){
        LL W{}, N{};
        std::vector<tuple> items{};
        std::cin >> W >> N;
        if (W==0) {
            break;
        }
        items.resize(N);
        for (LL i = 0; i < N; i++) {
            tuple input{};
            std::cin >> input.value;
            std::cin.ignore();
            std::cin >> input.weight;
            std::cin.ignore();
            items[i] = (input);
        }
        auto resault = rec(items, W);
        show_res(resault);
        isdpable.clear();
    }

    return 0;
}