Go: package main

import (
	"bufio"
	"os"
	"strconv"
	"strings"
	"fmt"
)

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	Case := 1
	for {
		scanner.Scan()
		W, _ := strconv.Atoi(scanner.Text())
		if W == 0 {
			break
		}
		scanner.Scan()
		n, _ := strconv.Atoi(scanner.Text())
		w := make([]int, n+1)
		v := make([]int, n+1)
		for i := 1; i <= n; i++ {
			scanner.Scan()
			info := strings.Split(scanner.Text(), ",")
			v[i], _ = strconv.Atoi(info[0])
			w[i], _ = strconv.Atoi(info[1])
		}
		// fmt.Println(v)
		// fmt.Println(w)
		dp := make([][]int, n+1)
		for i := range dp {
			dp[i] = make([]int, W+1)
		}
		maxV := -(1 << 21)
		minW := 1 << 21
		for i := 1; i <= n; i++ {
			for j := 1; j <= W; j++ {
				// fmt.Println(dp)
				if j-w[i] >= 0 {
					dp[i][j] = max(dp[i-1][j], dp[i-1][j-w[i]]+v[i])
					if maxV < dp[i][j] {
						maxV = dp[i][j]
						minW = j
					} else if maxV == dp[i][j] {
						minW = min(minW, j)
					}
				} else {
					dp[i][j] = dp[i-1][j]
				}
			}
		}
		fmt.Printf("Case %d:\n", Case)
		Case += 1
		fmt.Println(maxV)
		fmt.Println(minW)
	}
}
func max(x, y int) int {
	if x < y {
		return y
	}
	return x
}
func min(x, y int) int {
	if x < y {
		return x
	}
	return y
}

C++: #include <fstream>
#include <iostream>
#include <string.h>
#include <stdio.h>
#include <vector>
using namespace std;

#define READ_BY_TEXT false

vector<string> splitByDelimiter(string target, string delim) {
    std::string s = target;
    std::string delimiter = delim;
    size_t pos = 0;
    std::string token;
    vector<string> arr;
    while ((pos = s.find(delimiter)) != std::string::npos) {
        token = s.substr(0, pos);
        arr.push_back(token);
        s.erase(0, pos + delimiter.length());
    }
    arr.push_back(s);
    return arr;
}

int W, N;
int w[1000], v[1000];
int dp[1000][1000];
//vector<int> lines;
//int max_v, min_w;

int recursive(int i, int j) {
    
    if (dp[i][j] != -1) return dp[i][j];
    
    int ret;
    if (i >= N) {
        ret = 0;
    }
    else if (j < w[i]) {
        ret = recursive(i+1, j);
    }
    else {
        ret = max(recursive(i+1, j), recursive(i+1, j-w[i])+v[i]);
    }
    dp[i][j] = ret;
    
    return ret;
}

int calcMinWeight(int i, int j) {
    
    if (i >= N) {
        return 0;
    }
    
    int m_w = W;
    if (dp[i][j] == -1) {
        m_w = min(m_w, calcMinWeight(i+1, j));
    }
    else {
        m_w = min(m_w, calcMinWeight(i+1, j-w[i]) + w[i]);
    }
    
    return m_w;
}

int main() {
    
#if READ_BY_TEXT
    // Get values from test.txt
    std::ifstream ifs("test.txt");
    std::string str;
    if (ifs.fail())
    {
        std::cerr << "??±???" << std::endl;
        return -1;
    }
    getline(ifs, str);
    vector<string> words = splitByDelimiter(str, " ");
    num_d = stoi(words[0]);
    num_n = stoi(words[1]);
    for (int i=0; i<num_n; i++) {
        getline(ifs, str);
        lines.push_back(stoi(str));
    }
#else
    
    int case_v = 1;
    while (true) {
        cin >> W;
        if (!W) break;
        cin >> N;
        string input;
        for (int i = 0; i < N; i++) {
//            getline(cin, input);
            cin >> input;
            vector<string> words = splitByDelimiter(input, ",");
            v[i] = stoi(words[0]);
            w[i] = stoi(words[1]);
        }
        memset(dp, -1, sizeof(dp));
        
        // Solve
        int min_w = W;
        int max_v = recursive(0, W);
        for (int i = 0; i < N; i++) {
            for (int j = 0; j <= W; j++) {
//                cout << "dp[" << i << "][" << j << "] = " << dp[i][j] << endl;
                if (dp[i][j] == max_v) {
//                    cout << "i " << i << " j " << j << endl;
                    min_w = min(min_w, calcMinWeight(i, j));
//                    min_w = min(j, min_w);
                }
            }
        }
        
        cout << "Case " << case_v << ":" << endl;
        cout << max_v << endl;
        cout << min_w << endl;
        case_v++;
    }
    
//    string input;
//    getline(cin, input);
//    vector<string> words = splitByDelimiter(input, " ");
//    num_d = stoi(words[0]);
//    num_n = stoi(words[1]);
//    string input1;
//    for (int i=0; i<num_n; i++) {
//        getline(cin, input1);
//        lines.push_back(stoi(input1));
//    }
#endif
    
//    recursive(0, 0, "");
//    cout << result << endl;
    
    //    cout << "num_d = " << num_d << " num_n = " << num_n << "\n";
    //
    //    // Check parsed contents
    //    for (int i = 0; i < lines.size(); i++) {
    //        cout << "line[" << i << "] " << to_string(lines[i]) << "\n";
    //    }
    
    return 0;
}

C++: #include <iostream>
#include <stdio.h>
#include <algorithm>
#include <map>
using namespace std;

typedef map<int, int> M;

const int MAX_N = 1000;
const int MAX_W = 10000;

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

int main()
{
    int times = 1;
    while (1) {
        int lim;
        cin >> lim;
        if (lim == 0) break;
        int n;
        cin >> n;
        int v[MAX_N], w[MAX_N];
        for (int i = 0; i < n; i++)
            scanf("%d,%d", &v[i], &w[i]);

        M m;
        for (int i = n -1; i >= 0; i--) {
            for (int j = 0; j <= lim; j++) {
                if (j < w[i]) dp[i][j] = dp[i + 1][j];
                else dp[i][j] = max(dp[i + 1][j], dp[i + 1][j - w[i]] + v[i]);
                if (m[dp[i][j]] == 0 || m[dp[i][j]] > j ) m[dp[i][j]] = j;
            }
        }
        cout << "Case " << times << ":" << endl << dp[0][lim] << endl << m[dp[0][lim]] << endl;
        times++;
    }

    return 0;
}

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

int T, N, V[1010], W[1010];

int main() {

	for ( int t = 1; scanf( "%d", &T ) && T; t++ ) {
	
		scanf( "%d", &N );
	
		for ( int i = 0; i < N; i++ ) { scanf( "%d,%d", &V[i], &W[i] ); }
	
		int A[1010][1010] = {{0}};
	
		for ( int i = 1; i < N; i++ ) {
		
			for ( int j = 0; j <= T; j++ ) {
	
				if ( j < W[i-1] ) {
	
					A[i][j] = A[i-1][j];
	
				} else {
	
					A[i][j] = max( A[i-1][j], A[i-1][j-W[i-1]] + V[i-1] );
					
				}
	
			}
	
		}
		
		/*for ( int i = 1; i < N; i++ ) {
		
			printf( "i = %d\n", i );
		
			for ( int j = 0; j <= T; j++ ) {
			
				printf( "\tj = %d\t%d\n", j, A[i][j] );
			
			}
		
		}*/
		
		int best = -1, best_w = -1;
		
		for ( int j = 0; j <= T; j++ ) {
		
			if ( A[N-1][j] > best ) {
			
				best = A[N-1][j];
				best_w = j - 1;
				
			}
		
		}
		
		printf( "Case %d:\n%d\n%d\n", t, best, best_w );
	
	}

}

C++: #include <iostream>
#include <stdio.h>

using namespace std;

constexpr auto MAX_W = 1000;
constexpr auto MAX_N = 10000;

auto W = 0;
auto N = 0;

int value[MAX_N] = {};
int weight[MAX_N] = {};
int dp[MAX_N+1][MAX_W+1] = {};

auto solve() -> void {
    for (auto i = 0; i < N; i++) {
        for (auto j = 0; j <= W; j++) {
            if (j < weight[i]) {
                dp[i + 1][j] = dp[i][j];
            } else {
                dp[i + 1][j] = max(dp[i][j], dp[i][j - weight[i]] + value[i]);
            }
        }
    }
}

auto main(int argc, char const *argv[]) -> int {
    auto count = 0;
    while (cin>>W, W) {
        count++;
        cin>>N;
        for (auto i = 0; i < N; i++) {
            scanf("%d,%d", &value[i], &weight[i]);
        }

        cout<<"Case "<<count<<":"<<endl; 
        solve();
        cout<<dp[N][W]<<endl;
        for(auto i = 0; i <= W; i++) {
            if(dp[N][W] == dp[N][i]) {
                printf("%d\n",i);
                break;
            }
        }
    }

    return 0;
}