func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize( O3 )   using namespace std;   void io() {}   long long fast_exp(long long base, int exp, int m) {     long long res = 1;     while (exp > 0) {       if (exp % 2 == 1) {         res = (res * base) % m;       }       base = (base * base) % m;       exp /= 2;     }     return res % m;   }   long long arr[200005];   long long val[200005];   long long siz[200005];   map<long long, long long> mp;   long long ans, cnt, tmp;   long long vis[200005];   vector<long long> adj[200005];   long long dp[2001][2001];   long long n, m, k;   int main() {     io();     ios ::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long long t = 0;     cin >> arr[0] >> arr[1] >> arr[2];     sort(arr, arr + 3);     if (arr[2] - arr[1] - arr[0] < 0) {       cout << 0 <<   n ;       return 0;     }     cout << arr[2] - arr[1] - arr[0] + 1 <<   n ;   }   