#include #include #include #include using namespace std; int main() { int n,m; vectorgomi; int first,sum,min,d,z; cin >> n >> m; gomi.resize(m); cin >>gomi[0]; first = abs(gomi[0]); for(int i=1;i>gomi[i]; z = abs(gomi[i]); if(first > z){ first = z; } } sort(gomi.begin(),gomi.end()); d = gomi[n-1] - gomi[0]; for(int j=1;jmin){ d=min; } } sum = first + d; cout << sum << endl; return 0; }