Submission #1574146

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Source Code Expand

#include<bits/stdc++.h>
#define r(i,n) for(int i=0;i<n;i++)
using namespace std;
main(){
  int n;
  cin>>n>>n;
  int a[n];
  r(i,n)cin>>a[i];
  sort(a,a+n);
  int x=0,y=a[n-1];
  r(i,n-1)x+=a[i];
  cout<<max(0,y-x-1)<<endl;
}

Submission Info

Judge Result