Language: C++

#define rop(i,n) for(int i=1;i<=n;i++)
#define drep(i,n) for(int i=n-1;0<=i;i--)
#define drop(i,n) for(int i=n;0<i;i--)
#define yes(ans) if(ans)cout<<"yes"<<rt;else cout<<"no"<<rt;
#define Yes(ans) if(ans)cout<<"Yes"<<rt;else cout<<"No"<<rt;
#define YES(ans) if(ans)cout<<"YES"<<rt;else cout<<"NO"<<rt;
#define sec(a,b,ans) if(ans)cout<<a<<rt;else cout<<b<<rt;
#define vcin(s,n) rep(i,n)cin>>s[i];//vcin(配列名),(繰り返し回数)
#define sort(s) sort(s.begin(),s.end())//標準=昇順
#define reve(s) reverse(s.begin(),s.end())
#define asas int ans=0
#define llcncn llint cnt=0
#define llasas llint ans=0
#define str string
#define please return
#define AC 0
#define ic_a int a;cin>>a;
#define ic_b int b;cin>>b;
#define ic_s string s;cin>>s;
#define Rapid_pleaseAC_fast cin.tie(0);ios::sync_with_stdio(false)
#define Pi 3.1415926535897932384626
#define nine 1000000000

using namespace std;
typedef vector<int> vint;
typedef vector<string> vstr;
typedef vector<char> vchar;
typedef vector<double> vdou;
typedef long long int llint;
typedef pair<int, int> pint;
typedef pair<llint, llint> pllint;
typedef vector<llint> vllint;
typedef vector<pint> vpint;
typedef vector<pair<llint, llint>> vpllint;
typedef vector<vector<int>> vvint;
typedef vector<vector<char>> vvchar;
typedef vector<vector<llint>> vvllint;
typedef vector<vector<string>> vvstr;
typedef vector<vector<bool>> vvbool;
typedef vector<vector<pint>> vvpint;
typedef vector<bool> vbool;
typedef long double ld;
const ld eps = 1.0e-10; // 許容される誤差
long long GCD(long long a, long long b) {
	if (b == 0) return a;
	else return GCD(b, a % b);
}

long long LCM(long long a, long long b) {
	return a * b / GCD(a, b);
}

unsigned GetDigit(unsigned num) {
	return std::to_string(num).length();
}

int tow(int n) {//2のn乗
	if (n == 0)return 1;
	int x = tow(n / 2);
	x *= x;
	if (n % 2 == 1)x *= 2;
	return x;//@domino
}

int keta(int n) {
	int sum = 0;
	while (n != 0) {
		sum += n % 10; n /= 10;
	}
	return sum;//Nanashi,tRue,wai
}

/*

 (char)toupper(a[n])=文字列のn文字目を大文字で出力

  pow(a,b)=aのb乗

  */
ld mysqrtl(ld x)
{
	ld a = sqrt((double)x); // 近似値
	do {
		a = (a + x / a) / 2.0L;
	} while (fabsl(x - a * a) > eps);
	return a;
}


int main(void) {
	Rapid_pleaseAC_fast;
    double a,b,c,ad=1.0, bd=1.0, cd=1.0,x,y,z;
	cin >> a>>b>>c;
	ad += a - 1.0;
	bd += b - 1.0;
	cd += c - 1.0;
	x = mysqrtl(ad);
	y = mysqrtl(bd);
	z = mysqrtl(cd);
	if (x+y<z)cout << "Yes" << endl;
	else cout << "No" << endl;
	please AC;
}

Compiler output:
a.cc:25:9: error: 'vector' does not name a type
   25 | typedef vector<int> vint;
      |         ^~~~~~
a.cc:26:9: error: 'vector' does not name a type
   26 | typedef vector<string> vstr;
      |         ^~~~~~
a.cc:27:9: error: 'vector' does not name a type
   27 | typedef vector<char> vchar;
      |         ^~~~~~
a.cc:28:9: error: 'vector' does not name a type
   28 | typedef vector<double> vdou;
      |         ^~~~~~
a.cc:30:9: error: 'pair' does not name a type
   30 | typedef pair<int, int> pint;
      |         ^~~~
a.cc:31:9: error: 'pair' does not name a type
   31 | typedef pair<llint, llint> pllint;
      |         ^~~~
a.cc:32:9: error: 'vector' does not name a type
   32 | typedef vector<llint> vllint;
      |         ^~~~~~
a.cc:33:9: error: 'vector' does not name a type
   33 | typedef vector<pint> vpint;
      |         ^~~~~~
a.cc:34:9: error: 'vector' does not name a type
   34 | typedef vector<pair<llint, llint>> vpllint;
      |         ^~~~~~
a.cc:35:9: error: 'vector' does not name a type
   35 | typedef vector<vector<int>> vvint;
      |         ^~~~~~
a.cc:36:9: error: 'vector' does not name a type
   36 | typedef vector<vector<char>> vvchar;
      |         ^~~~~~
a.cc:37:9: error: 'vector' does not name a type
   37 | typedef vector<vector<llint>> vvllint;
      |         ^~~~~~
a.cc:38:9: error: 'vector' does not name a type
   38 | typedef vector<vector<string>> vvstr;
      |         ^~~~~~
a.cc:39:9: error: 'vector' does not name a type
   39 | typedef vector<vector<bool>> vvbool;
      |         ^~~~~~
a.cc:40:9: error: 'vector' does not name a type
   40 | typedef vector<vector<pint>> vvpint;
      |         ^~~~~~
a.cc:41:9: error: 'vector' does not name a type
   41 | typedef vector<bool> vbool;
      |         ^~~~~~
a.cc: In function 'unsigned int GetDigit(unsigned int)':
a.cc:54:21: error: 'to_string' is not a member of 'std'
   54 |         return std::to_string(num).length();
      |                     ^~~~~~~~~
a.cc:1:1: note: 'std::to_string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
  +++ |+#include <string>
    1 | #define rop(i,n) for(int i=1;i<=n;i++)
a.cc: In function 'ld mysqrtl(ld)':
a.cc:82:16: error: 'sqrt' was not declared in this scope; did you mean 'sort'?
   82 |         ld a = sqrt((double)x); // 近似値
      |                ^~~~
      |                sort
a.cc:85:18: error: 'fabsl' was not declared in this scope
   85 |         } while (fabsl(x - a * a) > eps);
      |                  ^~~~~
a.cc: In function 'int main()':
a.cc:20:29: error: 'cin' was not declared in this scope
   20 | #define Rapid_pleaseAC_fast cin.tie(0);ios::sync_with_stdio(false)
      |                             ^~~
a.cc:91:9: note: in expansion of macro 'Rapid_pleaseAC_fast'
   91 |         Rapid_pleaseAC_fast;
      |         ^~~~~~~~~~~~~~~~~~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #define rop(i,n) for(int i=1;i<=n;i++)
a.cc:20:40: error: 'ios' has not been declared
   20 | #define Rapid_pleaseAC_fast cin.tie(0);ios::sync_with_stdio(false)
      |                                        ^~~
a.cc:91:9: note: in expansion of macro 'Rapid_pleaseAC_fast'
   91 |         Rapid_pleaseAC_fast;
      |         ^~~~~~~~~~~~~~~~~~~
a.cc:100:19: error: 'cout' was not declared in this scope
  100 |         if (x+y<z)cout << "Yes" << endl;
      |                   ^~~~
a.cc:100:19: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:100:36: error: 'endl' was not declared in this scope
  100 |         if (x+y<z)cout << "Yes" << endl;
      |                                    ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #define rop(i,n) for(int i=1;i<=n;i++)
a.cc:101:14: error: 'cout' was not declared in this scope
  101 |         else cout << "No" << endl;
      |              ^~~~
a.cc:101:14: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:101:30: error: 'endl' was not declared in this scope
  101 |         else cout << "No" << endl;
      |                              ^~~~
a.cc:101:30: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'