Language: C++

#include <bits/stdc++.h>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <deque>
#include <functional>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
#define rep(i,s,e) for (int64_t i=s; i<e; i++)
#define pi 3.14159265358979323846264338327950L
using namespace std;

int main() {
  int N;
  cin >> N;
  vector<int> x(N);
  vector<int> y(N);
  vector<int> h(N);
  rep(i,0,N) {
    cin >> x[i] >> y[i] >> h[i];
  }
  rep(i,0,N) {
    if (h[i]>0) {
      int S=x[i], T=y[i], U=h[i];
      break;
    }
  }
  rep(X,0,101) {
    rep(Y,0,101) {
      int H=U+abs(X-S)+abs(Y-T);
      rep(i,0,N) {
        int K=0;
        if (h[i]==max((H-abs(x[i]-X)-abs(y[i]-Y)),0)) {
          K++;
        }
      }
      if (K==N) {
        cout << X << " " << Y << " " << H << endl;
      }
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:13: error: 'U' was not declared in this scope
   38 |       int H=U+abs(X-S)+abs(Y-T);
      |             ^
a.cc:38:21: error: 'S' was not declared in this scope
   38 |       int H=U+abs(X-S)+abs(Y-T);
      |                     ^
a.cc:38:30: error: 'T' was not declared in this scope
   38 |       int H=U+abs(X-S)+abs(Y-T);
      |                              ^
a.cc:41:22: error: no matching function for call to 'max(long int, int)'
   41 |         if (h[i]==max((H-abs(x[i]-X)-abs(y[i]-Y)),0)) {
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:41:22: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'int')
   41 |         if (h[i]==max((H-abs(x[i]-X)-abs(y[i]-Y)),0)) {
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:41:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   41 |         if (h[i]==max((H-abs(x[i]-X)-abs(y[i]-Y)),0)) {
      |                   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:45:11: error: 'K' was not declared in this scope
   45 |       if (K==N) {
      |           ^