Submission #47235

#	Time	Username	Problem	Language	Result	Execution time	Memory
47235		PowerOfNinjaGo	Maxcomp (info1cup18_maxcomp)	C++17	Compilation error	0 ms	0 KiB

maxcomp

//Power Of Ninja Go
#include <bits/stdc++.h>
//#ifdef atom #else #endif
using namespace std;
typedef long long ll; typedef pair<int, int> ii; typedef vector<int> vi; typedef vector< ii > vii;
#define X first
#define Y second
#define pb push_back
const int maxn = 1e3+5;
int arr[maxn][maxn];
int main()
{
    int n, m; scanf("%d %d", &n, &m);
    for(int i = 1; i<= n; i++)
    {
        for(int j = 1; j<= m; j++)
        {
            scanf("%d", arr[i]+j);
        }
    }
    ll best = -1e18;
    for(int i = 1; i<= n; i++)
    {
        for(int j = 1; j<= m; j++)
        {
            for(int i2 = 1; i2<= n; i2++)
            {
                for(int j2 = 1; j2<= m; j2++)
                {
                    best = max(best, abs(i-i2)+abs(j-j2)+abs(arr[i][j]-arr[i2][j2]));
                }
            }
        }
    }
    cout << best << endl;
}

Compilation message (stderr)

maxcomp.cpp: In function 'int main()':
maxcomp.cpp:30:84: error: no matching function for call to 'max(ll&, int)'
                     best = max(best, abs(i-i2)+abs(j-j2)+abs(arr[i][j]-arr[i2][j2]));
                                                                                    ^
In file included from /usr/include/c++/7/bits/specfun.h:45:0,
                 from /usr/include/c++/7/cmath:1914,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:41,
                 from maxcomp.cpp:2:
/usr/include/c++/7/bits/stl_algobase.h:219:5: note: candidate: template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:219:5: note:   template argument deduction/substitution failed:
maxcomp.cpp:30:84: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
                     best = max(best, abs(i-i2)+abs(j-j2)+abs(arr[i][j]-arr[i2][j2]));
                                                                                    ^
In file included from /usr/include/c++/7/bits/specfun.h:45:0,
                 from /usr/include/c++/7/cmath:1914,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:41,
                 from maxcomp.cpp:2:
/usr/include/c++/7/bits/stl_algobase.h:265:5: note: candidate: template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algobase.h:265:5: note:   template argument deduction/substitution failed:
maxcomp.cpp:30:84: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
                     best = max(best, abs(i-i2)+abs(j-j2)+abs(arr[i][j]-arr[i2][j2]));
                                                                                    ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from maxcomp.cpp:2:
/usr/include/c++/7/bits/stl_algo.h:3462:5: note: candidate: template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3462:5: note:   template argument deduction/substitution failed:
maxcomp.cpp:30:84: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
                     best = max(best, abs(i-i2)+abs(j-j2)+abs(arr[i][j]-arr[i2][j2]));
                                                                                    ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from maxcomp.cpp:2:
/usr/include/c++/7/bits/stl_algo.h:3468:5: note: candidate: template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^~~
/usr/include/c++/7/bits/stl_algo.h:3468:5: note:   template argument deduction/substitution failed:
maxcomp.cpp:30:84: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
                     best = max(best, abs(i-i2)+abs(j-j2)+abs(arr[i][j]-arr[i2][j2]));
                                                                                    ^
maxcomp.cpp:13:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int n, m; scanf("%d %d", &n, &m);
               ~~~~~^~~~~~~~~~~~~~~~~
maxcomp.cpp:18:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", arr[i]+j);
             ~~~~~^~~~~~~~~~~~~~~~