func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e6 + 5;   const int MOD = 1e9 + 7;   vector<pair<long long int, long long int> > vp;   map<long long int, long long int> mp, mpp;   vector<long long int> v, v1, v2;   long long int dp[N], visit[N];   template <typename Arg1>   void __f(const char* name, Arg1&& arg1) {     cerr << name <<   :   << arg1 << std::endl;   }   template <typename Arg1, typename... Args>   void __f(const char* names, Arg1&& arg1, Args&&... args) {     const char* comma = strchr(names + 1,  , );     cerr.write(names, comma - names) <<   :   << arg1 <<     ;     __f(comma + 1, args...);   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(NULL);     cout.tie(NULL);     long long int n, m, val, k, d, mi = 1e9, mx(0);     long long int sum(0), ct(0), p(0), q(0);     cin >> n >> m;     if (n <= 2 * m)       cout << 0 <<    ;     else       cout << n - 2 * m <<    ;     long long int low = 0, high = n;     while (low <= high) {       long long int mid = (low + high) >> 1;       if (((mid * (mid - 1) / 2)) >= m) {         high = mid - 1;       } else {         low = mid + 1;       }     }     cout << n - (high + 1);   }   