Language: C++

#include <iostream>
#include <fstream>
#include <vector>
#include <utility>
#include <map>
#include <set>
#include <list>
#include <deque>
#include <queue>
#include <stack>
#include <forward_list>
#include <unordered_set>
#include <unordered_map>
#include <algorithm>
#include <string>
#include <bitset>
#include <memory>
#include <chrono>
#include <cmath>
#include <cstdio>
#include <ctime>
#include <cstring>
#include <cstdlib>
#include <cstdint>

using namespace std;

set<int> prime;

void calc_prime(int mm) {
    int cur = 2;
    while(cur <= mm) {
        for(auto itr = prime.begin();itr != prime.end();itr++) {
            if(cur % *itr == 0)
                goto not_prime;
        }
        prime.insert(cur);
    not_prime:
        cur++;
    }
}
/*
int main(void) {
    int n,res = 0;
    cin >> n;
    if(n % 2 == 0)
        res = n;
    else
        res = 2 * n;
    cout << res << endl;
    return 0;
}
 */
int main(void ) {
    int n;
    unsigned int maxn = 0,minn = 1000000001;
    cin >> n;
    for(int i = 0;i < n;i++) {
        int t;
        cin >> t;
        maxn = max(maxn,t);
        minn = min(minn,t);
    }
    cout << maxn - minn << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:61:19: error: no matching function for call to 'max(unsigned int&, int&)'
   61 |         maxn = max(maxn,t);
      |                ~~~^~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 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:61:19: note:   deduced conflicting types for parameter 'const _Tp' ('unsigned int' and 'int')
   61 |         maxn = max(maxn,t);
      |                ~~~^~~~~~~~
/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,
                 from a.cc:14:
/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:61:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'unsigned int'
   61 |         maxn = max(maxn,t);
      |                ~~~^~~~~~~~
a.cc:62:19: error: no matching function for call to 'min(unsigned int&, int&)'
   62 |         minn = min(minn,t);
      |                ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:62:19: note:   deduced conflicting types for parameter 'const _Tp' ('unsigned int' and 'int')
   62 |         minn = min(minn,t);
      |                ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:62:19: note:   mismatched types 'std::initializer_list<_Tp>' and 'unsigned int'
   62 |         minn = min(minn,t);
      |                ~~~^~~~~~~~