Submission #238134

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
238134	2020-06-10T01:58:05 Z	HellAngel	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	Compilation error	0 ms	0 KB

skyscraper

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

const int maxn = 50007;

int n, m, a[maxn], start[maxn], len[maxn], dist[maxn];
vector<int> pos[maxn];

priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;

bool Inside(int x)
{
    return (x >= 0 && x < n);
}

int32_t main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin), freopen("test.out", "w", stdout);
    cin >> n >> m;
    fill_n(dist, n, 1e9);
    for(int i = 1; i <= m; i++)
    {
        cin >> start[i] >> len[i];
        pos[start[i]].push_back(len[i]);
    }
    for(int i = 0; i < n; i++)
    {
        sort(pos[i].begin(), pos[i].end());
        pos[i].erase(unique(pos[i].begin(), pos[i].end()), pos[i].end());
        reverse(pos[i].begin(), pos[i],end());
    }
    if(m == 1)
    {
        cout << -1;
        return 0;
    }
    dist[start[1]] = 0;
    pq.emplace(0, start[1]);
    while(pq.size())
    {
        pair<int, int> p = pq.top();
        pq.pop();
        if(p.first != dist[p.second]) continue;
        int u = p.second;
        if(u == start[2])
        {
            cout << p.first;
            exit(0);
        }
        for(auto j: pos[u])
        {
            int cnt = 0;
            for(int i = 1;;i++)
            {
                int nxt = u + i * j;
                bool ok = 0;
                bool sure = 0;
                ok |= Inside(nxt);
                if(Inside(nxt) && dist[nxt] > dist[u] + i)
                {
                    sure = 1;
                    dist[nxt] = dist[u] + i;
                    pq.emplace(dist[nxt], nxt);
                }
                nxt = u - i * j;
                ok |= Inside(nxt);
                if(Inside(nxt) && dist[nxt] > dist[u] + i)
                {
                    sure = 1;
                    dist[nxt] = dist[u] + i;
                    pq.emplace(dist[nxt], nxt);
                }
                if(!sure)
                {
                    cnt++;
                }
                else cnt = 0;
                if(cnt >= 10000) break;
                if(!ok) break;
            }
        }
    }
    cout << -1;
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:32:44: error: no matching function for call to 'end()'
         reverse(pos[i].begin(), pos[i],end());
                                            ^
In file included from /usr/include/c++/7/bits/range_access.h:36:0,
                 from /usr/include/c++/7/string:51,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from skyscraper.cpp:1:
/usr/include/c++/7/initializer_list:99:5: note: candidate: template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)
     end(initializer_list<_Tp> __ils) noexcept
     ^~~
/usr/include/c++/7/initializer_list:99:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:32:44: note:   candidate expects 1 argument, 0 provided
         reverse(pos[i].begin(), pos[i],end());
                                            ^
In file included from /usr/include/c++/7/string:51:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from skyscraper.cpp:1:
/usr/include/c++/7/bits/range_access.h:68:5: note: candidate: template<class _Container> decltype (__cont.end()) std::end(_Container&)
     end(_Container& __cont) -> decltype(__cont.end())
     ^~~
/usr/include/c++/7/bits/range_access.h:68:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:32:44: note:   candidate expects 1 argument, 0 provided
         reverse(pos[i].begin(), pos[i],end());
                                            ^
In file included from /usr/include/c++/7/string:51:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from skyscraper.cpp:1:
/usr/include/c++/7/bits/range_access.h:78:5: note: candidate: template<class _Container> decltype (__cont.end()) std::end(const _Container&)
     end(const _Container& __cont) -> decltype(__cont.end())
     ^~~
/usr/include/c++/7/bits/range_access.h:78:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:32:44: note:   candidate expects 1 argument, 0 provided
         reverse(pos[i].begin(), pos[i],end());
                                            ^
In file included from /usr/include/c++/7/string:51:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from skyscraper.cpp:1:
/usr/include/c++/7/bits/range_access.h:97:5: note: candidate: template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])
     end(_Tp (&__arr)[_Nm])
     ^~~
/usr/include/c++/7/bits/range_access.h:97:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:32:44: note:   candidate expects 1 argument, 0 provided
         reverse(pos[i].begin(), pos[i],end());
                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95:0,
                 from skyscraper.cpp:1:
/usr/include/c++/7/valarray:1221:5: note: candidate: template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)
     end(valarray<_Tp>& __va)
     ^~~
/usr/include/c++/7/valarray:1221:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:32:44: note:   candidate expects 1 argument, 0 provided
         reverse(pos[i].begin(), pos[i],end());
                                            ^
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:95:0,
                 from skyscraper.cpp:1:
/usr/include/c++/7/valarray:1231:5: note: candidate: template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)
     end(const valarray<_Tp>& __va)
     ^~~
/usr/include/c++/7/valarray:1231:5: note:   template argument deduction/substitution failed:
skyscraper.cpp:32:44: note:   candidate expects 1 argument, 0 provided
         reverse(pos[i].begin(), pos[i],end());
                                            ^
skyscraper.cpp:20:63: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     if(fopen("test.inp", "r")) freopen("test.inp", "r", stdin), freopen("test.out", "w", stdout);
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:20:63: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]