Language: C++

#include <bits/stdc++.h>
#pragma GCC optimize("O2")
using namespace std;

# define mp make_pair
# define pb push_back
# define PI acos(-1)
# define ff first 
# define ss second 
# define endl '\n'
# define vt vector
# define all(c) (c).begin(), (c).end()
# define rep(i,a,b) for(int i = a ; i < b ; ++i)

typedef long long ll ; 
typedef long double ld ; 
typedef pair<int,int> pii ; 
typedef pair<ll,ll> pll ;

template<class T> bool umin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool umax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }

const ll inf = 1e18 ; 
const int MxN = 300005; 
const ll mod = 1e9+7 ; 
const int MOD = 998244353 ; 

ll nCr(ll n,ll r){
	ll res=1;
	if(r>n) return 0;
	if(r>n-r) r=n-r;
	for(ll i=0;i<r;i++) {
		res*=(n-i);
		res/=(i+1);
	}
	return res;
}
ll power(ll a , ll n)
{
	ll res = 1;
	while(n)
	{
		if(n & 1)
			res = (res * a) % MOD;
		n >>= 1;
		a = (a * a) % MOD;
	}
	return res%MOD;
}



vt<pii> dir =  {{-1,0} , {1, 0} , {0,-1} , {0,1}} ; 

// ==========Start Here==============
 
int main()						
{								 _________________________________________________				
								/*|		*/	ios_base::sync_with_stdio(false); // |
								/*|		*/	cin.tie(NULL) ;                   // |
								/*|		*/ 									  // |
								/*|		*/	            			          // |
								/*|		*/	string s ;                        // |
								/*(		*/	cin >> s ;                        // |
								/* \	*/		int n = s.size() ;            // |
								/*  \	*/		int ans = n , ones = 0 ;      // |
		          APURV /* <---------)--------*/rep(i,1,n) {                  // |
								/*  /	*/			if(s[i] != s[i-1]) {      // |
								/* /	*/			umin(ans ,max( i , n-i)); // |
								/*(		*/			                          // |
								/*|		*/		}                             // |
								/*|		*/	}                                 // |
								/*|		*/	cout << ans ;                     // |
								/*|______________________________________________| 

	cerr <<"Time : "<<1000*((double)clock())/(double)CLOCKS_PER_SEC<<" ms\n";
	return 0 ; 
}


Compiler output:
a.cc:74:65: error: unterminated comment
   74 |                                                                 /*|______________________________________________|
      |                                                                 ^
a.cc: In function 'int main()':
a.cc:58:66: error: '_________________________________________________' was not declared in this scope
   58 | {                                                                _________________________________________________
      |                                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:67:27: error: 'APURV' was not declared in this scope
   67 |                           APURV /* <---------)--------*/rep(i,1,n) {                  // |
      |                           ^~~~~
a.cc:67:61: error: 'i' was not declared in this scope
   67 |                           APURV /* <---------)--------*/rep(i,1,n) {                  // |
      |                                                             ^
a.cc:13:37: note: in definition of macro 'rep'
   13 | # define rep(i,a,b) for(int i = a ; i < b ; ++i)
      |                                     ^
a.cc:73:102: error: expected '}' at end of input
   73 |                                                                 /*|             */      cout << ans ;                     // |
      |                                                                                                      ^
a.cc:58:1: note: to match this '{'
   58 | {                                                                _________________________________________________
      | ^