Submission #1686485

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Source Code Expand

#include <iostream>
using namespace std;
int main(void){
    // Here your code !
    int k,t;
    cin>>k>>t;
    int a[t];
    int max=0;
    int sum=0;
    for(int i=0;i<t;i++){
        cin>>a[i];
        sum+=a[i];
        if(max<a[i]){
            max=a[i];
        }
    }
    if(max-1>sum-max){
        cout<<max-1-sum+max<<endl;
    }else{
        cout<<"0"<<endl;
    }
    return 0;
}

Submission Info

Judge Result