Submission #5999188

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int flag=0,pd;
int main(){
	int k,t;
	int a[1001];
	cin>>k>>t;
	for(int i=0;i<t;i++) cin>>a[i],flag+=a[i];
	for(int i=0;i<t;i++){
		pd=a[i]*2-flag-1;
		if(pd>=0){
			cout<<pd<<endl;
			return 0;
		}
	}
	cout<<"0"<<endl;
	return 0;
} 

Submission Info

Judge Result