Submission #1311360

#	Time	Username	Problem	Language	Result	Execution time	Memory
1311360		hackjs	Painting Walls (APIO20_paint)	C++20	Compilation error	0 ms	0 KiB

paint

#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>

#define ll long long
#define ull unsigned long long
#define ld long double
#define pb push_back
#define str string
#define sz(a) (int) a.size()
#define pii pair<int,int>
#define vi vector<int>
#define rall(a) a.rbegin(), a.rend()
#define all(a) a.begin(), a.end()
#define mp(a,b) make_pair(a,b)
#define fi first
#define se second
#define debug(a) cout << #a << " = " << a << endl;
#define fff cout << "----------------------------------------" <<endl;
// #define ordered_set tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update>
using namespace std;
// using namespace __gnu_pbds;

mt19937 rng(47);
int randint(int l, int r){
    return uniform_int_distribution<int>(l, r)(rng);
}

int minimumInstructions(int n,int m,int k, vi c, vi a, vector<vi> b){
    vector<unordered_map<int,int>> DP(n);
    vi F(n, 0);
    vector<vi> val(k);
    vector<unordered_map<int,bool>> vv(k);
    for(int i = 0;i < m;++i){
        for(int j : b[i]){
            val[j].pb(i);
            vv[j][i] = true;
        }
    }
    for(int j : val[c[n-1]]) {
        DP[n-1][j] = 1;
    }
    for(int i = n-2;i >= 0;--i){
        int x = 0;
        for(int j : val[c[i+1]]){
            int th = (j - 1 + m) % m;
            if(vv[c[i]][th]){
                x = max(x, DP[i][th] = max(DP[i][th], DP[i+1][j] + 1));
            }
        }
        for(int j : val[c[i]]){
            x = max(x, DP[i][j] = max(DP[i][j], 1ll));
        }
        F[i] = x;
    }
    int ans = 0;
    int l = 0;
    while(l < n){
        int x =F[l];
        x = min(x, m);
        ++ans;
        l += x;
        if(x == 0){
            return -1;
        }
    }
    return ans;
}

Compilation message (stderr)

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:52:38: error: no matching function for call to 'max(std::unordered_map<int, int>::mapped_type&, long long int)'
   52 |             x = max(x, DP[i][j] = max(DP[i][j], 1ll));
      |                                   ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from paint.cpp:1:
/usr/include/c++/13/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++/13/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
paint.cpp:52:38: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   52 |             x = max(x, DP[i][j] = max(DP[i][j], 1ll));
      |                                   ~~~^~~~~~~~~~~~~~~
/usr/include/c++/13/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++/13/bits/stl_algobase.h:303:5: note:   template argument deduction/substitution failed:
paint.cpp:52:38: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
   52 |             x = max(x, DP[i][j] = max(DP[i][j], 1ll));
      |                                   ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61:
/usr/include/c++/13/bits/stl_algo.h:5795:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5795 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5795:5: note:   template argument deduction/substitution failed:
paint.cpp:52:38: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   52 |             x = max(x, DP[i][j] = max(DP[i][j], 1ll));
      |                                   ~~~^~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5805 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note:   template argument deduction/substitution failed:
paint.cpp:52:38: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   52 |             x = max(x, DP[i][j] = max(DP[i][j], 1ll));
      |                                   ~~~^~~~~~~~~~~~~~~