https://codeforces.com/contest/1064
A
1 #include<bits/stdc++.h> 2 #define pb push_back 3 using namespace std; 4 5 bool Check(int a,int b,int c){ 6 if(a+b>c&&b+c>a&&a+c>b) return true; 7 return false; 8 } 9 10 int main(){ 11 int a,b,c; 12 cin>>a>>b>>c; 13 if(Check(a,b,c)){ 14 cout<<0<<endl; 15 } 16 else{ 17 cout<<min(abs(a+b-c),min(abs(b+c-a),abs(a+c-b)))+1<<endl; 18 19 } 20 }