Submission #339869

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
339869	2020-12-26T10:18:40 Z	Vladikus004	Mountain Trek Route (IZhO12_route)	C++14	Compilation error	0 ms	0 KB

route

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define inf 2e9
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;

//#define int long long
const int N = 1000000 + 3;
int n, k, a[N], b[N], cnt[N], buff[N];

ll solve(ll k){
    vector <int> st;
    for (int i = n - 1; i >= 0; i--)
        if (b[i] > 0) st.pb(i);
    for (int i = n - 1; i >= 0; i--){
        while (!st.empty() && b[st.back()] == 0) st.pop_back();
        if (b[i] > 0) st.push_back(i);
        if (b[i] < 0){
            while (b[i] < 0 && !st.empty()){
                int gt = min(-b[i], b[st.back()]);
                cnt[(st.back() + n - i) % n] += gt;
                b[st.back()] -= gt;
                b[i] += gt;
                while (!st.empty() && b[st.back()] == 0) st.pop_back();
            }
        }
    }
    ll ans = 0;
    for (int i = 1; i <= n; i++){
        ll gt = min(k/i, cnt[i]);
        k -= i * 1LL * gt;
        cnt[i] -= gt;
        ans += gt;
        cnt[i] = 0;
    }
    return ans*2LL;
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    cin >> n >> k;
    pair <ll, ll> mx = {-1, -1};
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < n - 1; i++) b[i] = a[i + 1] - a[i];
    b[n - 1] = a[0] - a[n - 1];
    ll pref = 0;
    for (int i = 0; i < n; i++){
        pref += b[i];
        mx = max(mx, {pref, i});
    }
    int cnt = 0;
    for (int i = mx.second; i < n; i++)
        buff[cnt++] = b[i];
    for (int i = 0; i < mx.second; i++)
        buff[cnt++] = b[i];
    for (int i = 0; i < n; i++)
        b[i] = buff[i];
    b[n] = b[0];
    for (int j = 0; j < n; j++)
        b[j] = b[j + 1];
    ll ans = 0;
        ans = max(ans, solve(k));
    cout << ans;
    return 0;
}

Compilation message

route.cpp: In function 'll solve(ll)':
route.cpp:34:32: error: no matching function for call to 'min(ll, int&)'
   34 |         ll gt = min(k/i, cnt[i]);
      |                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from route.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:198:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  198 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:198:5: note:   template argument deduction/substitution failed:
route.cpp:34:32: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   34 |         ll gt = min(k/i, cnt[i]);
      |                                ^
In file included from /usr/include/c++/9/bits/char_traits.h:39,
                 from /usr/include/c++/9/ios:40,
                 from /usr/include/c++/9/istream:38,
                 from /usr/include/c++/9/sstream:38,
                 from /usr/include/c++/9/complex:45,
                 from /usr/include/c++/9/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
                 from route.cpp:1:
/usr/include/c++/9/bits/stl_algobase.h:246:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  246 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algobase.h:246:5: note:   template argument deduction/substitution failed:
route.cpp:34:32: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   34 |         ll gt = min(k/i, cnt[i]);
      |                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from route.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3444:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(std::initializer_list<_Tp>)'
 3444 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3444:5: note:   template argument deduction/substitution failed:
route.cpp:34:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   34 |         ll gt = min(k/i, cnt[i]);
      |                                ^
In file included from /usr/include/c++/9/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
                 from route.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:3450:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(std::initializer_list<_Tp>, _Compare)'
 3450 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/9/bits/stl_algo.h:3450:5: note:   template argument deduction/substitution failed:
route.cpp:34:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   34 |         ll gt = min(k/i, cnt[i]);
      |                                ^
route.cpp: In function 'int32_t main()':
route.cpp:46:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   46 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
route.cpp:47:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   47 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~