help,为啥0蛋

#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,h,p[105],c[105],dp[55005];
int Tmax=5000;
int Min=0x3f3f3f3f;
signed main(){
	cin>>n>>h;
	for (int i=1;i<=n;i++){
		cin>>p[i]>>c[i];
	}
	memset(dp,0x3f3f3f3f,sizeof(dp));
	for (int i=1;i<=n;i++){
		for (int j=p[i];j<=h+Tmax;j++){
			dp[j]=min(dp[j],dp[j-p[i]]+c[i]);
		}
	}
	for (int i=h;i<=h+Tmax;i++){
		Min=min(Min,dp[i]);
	}
	cout<<Min;
	return 0;
}