#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
const int INF=0x3f3f3f3f;
int w[N],v[N],a[N],n,m;
int main()
{
	cin >> m >> n;
	for(int i=1;i<=n;i++)
	{
        cin >> w[i];
    }
    for(int i=1;i<=n;i++)
	{
        for(int j=m;j>=w[i];j--)
		{
            a[j]=max(a[j],a[j-w[i]]+w[i]);
        }
    }
    cout << m-a[m];
    return 0;
}

虽然只有一种味道，但真的 鲜~

葵花子味

#include <iostream>
#include <cstdio>
using namespace std;
const int SB=1e6+10;
int f[SB], w[SB];
int main() {
   int v, n;
   cin >> v >> n;
   for (int i = 1; i <= n; i++) cin >> w[i];
   for (int i = 1; i <= n; i++)
       for (int j = v; j >= w[i]; j--)
           f[j] = max(f[j], f[j - w[i]] + w[i]);
   cout << v - f[v];
   return 0;
}

#include<bits/stdc++.h>
using namespace std;
int w[100001],v[100001],dp[100001];
int main(){
    int n,m;
    cin>>m>>n;    for(int i=1;i<=n;i++){
        cin>>w[i];
    }
    for(int i=1;i<=n;i++){
        for(int j=m;j>=w[i];j--){
            dp[j]=max(dp[j],dp[j-w[i]]+w[i]);
        }
    }
    cout<<m-dp[m];
    return 0;
}

/*****************
备注：
*****************/
#include <iostream>
#include <iomanip>
#include <cmath>
#include <cstring>
#include <algorithm>
#include <cstdio>
using namespace std;
#define LL long long
#define MAXM 3010
#define MAXN 3010
const int N =1e5+10;
const int INF =0x3f3f3f3f;
int maxx = -INF,n,minn = INF,v;
int a[N];
void dfs(int step,int sum)
{
	if (sum <= v) maxx = max(maxx,sum);
	if (sum > v or step > n) return;
	dfs(step+1,sum+a[step]);
	dfs(step+1,sum);
}
int main(){
	cin >> v >> n;
	for (int i = 1;i<=n;i++)
	{
		cin >> a[i];
	}
	dfs(1,0);
	cout << v - maxx;
	return 0;
}

using namespace std;
int w[100001],v[100001],dp[100001];
int main(){
    int n,m;
    cin>>m>>n;    for(int i=1;i<=n;i++){
        cin>>w[i];
    }
    for(int i=1;i<=n;i++){
        for(int j=m;j>=w[i];j--){
            dp[j]=max(dp[j],dp[j-w[i]]+w[i]);
        }
    }
    cout<<m-dp[m];
    return 0;
}

#include <stdio.h>
#include <iostream>
using namespace std;
inline int read(string n){
	int x = 0, f = 1;
	printf("%s", n.c_str());
	char c = getchar();
	while(c < '0'  ||  c > '9'){
		if(c == '-')
			f = -1;
		c = getchar();
	}
	while(c >= '0'  &&  c <= '9'){
		x = x * 10 + c - 48;
		c = getchar();
	}
	return x * f;
}
inline float input(string n){
	float x = 0, f = 1, x2 = 0, cnt = 0, i = 0;
	printf("%s", n.c_str());
	char c = getchar();
	while(c < '0'  ||  c > '9'){
		if(c == '-')
			f = -1;
		c = getchar();
	}
	while(c >= '0'  &&  c <= '9'){
		x = x * 10 + c - 48;
		c = getchar();
	}
	c = getchar();
	while(c >= '0'  &&  c <= '9'){
		x2 = x2 * 10 + c - 48;
		cnt++;
		c = getchar();
	}
	for(; i < cnt; i++)
		x2 /= 10.0;
	return (x + x2) * f;
}
void write(int n) {
    if(n < 0){
        putchar('-');
        n = -n;
    }
    if(n > 9)
		write(n / 10);
    putchar(n % 10 + '0');
	return;
}
void print(float n){
	printf("%lf\n", n);
	return;
}
int m, n, f[20010], w[40], i, j;
int main(){
    m = read("");
    n = read("");
    for(i = 1; i <= n; i++)
        w[i] = read("");
    for(i = 1; i <= n; i++)
        for(j = m; j >= w[i]; j--)
            if(f[j] < f[j - w[i]] + w[i])
                f[j] = f[j - w[i]] + w[i];
    write(m-f[m]);
    return 0;
}

#include<bits/stdc++.h> using namespace std; int q,a[100001],b[100001]; int main(){ int w; cin>>w>>q; int i, j; for (i = 0; i < q; i++){ cin>>a[i]; } for (i = 0; i < q; i++){ for (j = w; j >= a[i]; j--) b[j] = max(b[j], b[j - a[i]] + a[i]); } cout<<w - b[w]; return 0; }

#include <iostream>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <cstdio>
#include <string>
#include <iomanip>
#include <queue>
#include <stack>
#include <list>
#include <map>
#include <vector>
#include <fstream>
using namespace std;
const int N = 1e5+10;
const int INF = 0x3f3f3f3f;
int maxx = -INF,n,minn = INF,v;
int a[N];
void dfs(int step,int sum){
	if (sum <= v) maxx = max(maxx,sum);
	if (sum > v or step > n) return;
	dfs(step+1,sum+a[step]);
	dfs(step+1,sum);
}
int main(){
	cin >> v >> n;
	for (int i = 1;i<=n;i++){
		cin >> a[i];
	}
	dfs(1,0);
	cout << v - maxx;
	return 0;
}