38 lines
565 B
C++
38 lines
565 B
C++
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#include<bits/stdc++.h>
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using namespace std;
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using ll = long long;
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void solve()
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{
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int n,m;
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cin>>n>>m;
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vector<int>v;
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for(int i=0; i<n; ++i)
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{
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int x;
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cin>>x;
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v.push_back(x);
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}
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sort(v.begin(),v.end());
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int sum=0;
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for(int i=0; i<m; ++i)
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{
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if(v[i]>=0)
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break;
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else
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sum+=abs(v[i]);
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}
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cout<<sum<<endl;
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}
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int main()
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{
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ios_base::sync_with_stdio(false);
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cin.tie(nullptr);
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int TC = 1;
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//cin >> TC;
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//cin.ignore();
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while (TC--) solve();
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}
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