Submission #1208212

#	Time	Username	Problem	Language	Result	Execution time	Memory
1208212		jasonic	Ancient Books (IOI17_books)	C++20	Compilation error	0 ms	0 KiB

books

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define fastIO cin.tie(0); ios::sync_with_stdio(false)
#define cerr if(0) cout
#define cerr2 if(0) cout

int n;

ll minimum_walk(vector<int> p, int s) {
    n = size(p);
    vector<bool> vis(n, false);
    assert(s == 0);
    ll cntGroups = -1;
    ll ans = 0;
    ll cntNotNeeded = 0;

    for(ll l = 0, i = 0, r = 0, size = 0, total = 0; r < n; i++) {
        
        if(p[i] != i && !vis[i]) {
            ll prev = i;
            ll curr = p[i];
            while(curr != i) {
                cerr << prev << ' ' << curr << ' ' << abs(prev - curr) << '\n';
                vis[prev] = true;
                vis[curr] = true;
                total += abs(prev - curr);
                r = max(r, curr);
                
                prev = p[prev];
                curr = p[curr];
            }
            cerr << prev << ' ' << curr << ' ' << abs(prev - curr) << '\n';
            size += abs(prev - curr);
            cerr << total << '\n';
            total += size;
            size = 0;
        }

        vis[i] = true;
        
        if(i == r) {
            cerr2 << l << ' ' << r << '\n';
            cerr2 << total << '\n';
            
            if(l != r) {
                ans += total;
                cntNotNeeded = 0;
            } else {
                cntNotNeeded++;
            }
            
            cntGroups++;
            l = i+1;
            r = i+1;
            total = 0;
        }
    }
    cerr2 << ans << ' ' << cntGroups << '\n';
    return ans + max(0, cntGroups + cntGroups) - cntNotNeeded - cntNotNeeded;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:61:21: error: no matching function for call to 'max(int, long long int)'
   61 |     return ans + max(0, cntGroups + cntGroups) - cntNotNeeded - cntNotNeeded;
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from books.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
books.cpp:61:21: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   61 |     return ans + max(0, cntGroups + cntGroups) - cntNotNeeded - cntNotNeeded;
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from books.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
books.cpp:61:21: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   61 |     return ans + max(0, cntGroups + cntGroups) - cntNotNeeded - cntNotNeeded;
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from books.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3461:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3461 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3461:5: note:   template argument deduction/substitution failed:
books.cpp:61:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   61 |     return ans + max(0, cntGroups + cntGroups) - cntNotNeeded - cntNotNeeded;
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/string:52,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from books.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3467 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3467:5: note:   template argument deduction/substitution failed:
books.cpp:61:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   61 |     return ans + max(0, cntGroups + cntGroups) - cntNotNeeded - cntNotNeeded;
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~