题解

#include<bits/stdc++.h>
using namespace std;
int a,b,c[101],d;
int main(){
cin>>a;
cin>>b;
for(int i=1;i<=b;i++){
cin>>c[i];
if(a>=c[i]) a-=c[i];
else d++;
}
cout<<d;
return 0;
}