제출 #1035964

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1035964		trMatherz	휴가 (IOI14_holiday)	C++17	컴파일 에러	0 ms	0 KiB

holiday

//#include <iostream>
#include "holiday.h"
 
// #include <fstream>
// std::ifstream cin ("cbarn.in");
// std::ofstream cout ("cbarn.out");
 
 
// includes
#include <cmath>
#include <set>
#include <map>
#include <queue>
#include <string>
#include <vector>
#include <array>
#include <algorithm>
#include <numeric>
#include <iomanip>
#include <unordered_set>
#include <stack>
#include <ext/pb_ds/assoc_container.hpp>
#include <random>
#include <chrono>
#include <bitset>
#include <complex>
 
// usings
using namespace std;
using namespace __gnu_pbds;
 
// misc
#define ll long long
#define ld long double
#define pb push_back
#define pq priority_queue
#define ub upper_bound
#define lb lower_bound
template <typename T, typename U>
bool emin(T &a, const U &b) { return b < a ? a = b, true : false; }
template <typename T, typename U>
bool emax(T &a, const U &b) { return b > a ? a = b, true : false; }
typedef uint64_t hash_t;
 
// vectors
#define vi vector<int>
#define vvi vector<vi>
#define vvvi vector<vvi>
#define vpii vector<pair<int, int>>
#define vvpii vector<vector<pair<int, int>>>
#define vppipi vector<pair<int, pair<int, int>>>
#define vl vector<ll>
#define vvl vector<vl>
#define vvvl vector<vvl>
#define vpll vector<pair<ll, ll>>
#define vvpll vector<vpll>
#define vb vector<bool>
#define vvb vector<vb>
#define vs vector<string>
#define sz(x) (int)x.size()
#define rz resize
#define all(x) x.begin(), x.end()
#define vc vector<char>
#define vvc vector<vc>
 
// pairs
#define pii pair<int, int>
#define pll pair<ll, ll>
#define mp make_pair
#define f first
#define s second
 
// sets
#define si set<int>
#define sl set<ll>
#define ss set<string>
#define in insert
template <class T>
using iset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
 
// maps
#define mii map<int, int>
#define mll map<ll, ll>
 
// loops
#define FR(x, z, y) for (int x = z; x < y; x++)
#define FRE(x, z, y) FR(x, z, y + 1)
#define F(x, y) FR(x, 0, y)
#define FE(x, y) F(x, y + 1)
#define A(x, y) for (auto &x : y)

int N, D; 
vl a; int z;
vpll lef, rig; 
vpll seg; vi o; 
void plop(int x){ seg[x] = {seg[x * 2].f + seg[x * 2 + 1].f, seg[x * 2].s + seg[x * 2 + 1].s}; }
void upd(int l, int r, int x, int v, pll y) {
    if(r < v || l > v) return;
    if(l == r) {seg[x] = y; return;}
    int m = (l + r) / 2;
    upd(l, m, x * 2, v, y); upd(m + 1, r, x * 2 + 1, v, y); 
    plop(x); 
}
ll get(int l, int r, int x, int v){
    if(v <= 0) return 0; 
    if(seg[x].s <= v) return seg[x].f; 
    int m = (l + r) / 2; 
    return get(l, m, x * 2, v) + get(m + 1, r, x * 2 + 1, v - seg[x * 2].s);
}
void go(int l, int r, int rl, int rr, int q){
    int m = (l + r) / 2;
    ll bes = -1, p = -1; 
    for(int i = z + 1; i < rl; i++) upd(0, N * 2 - 1, 1, o[i], {a[i], 1});
    for(int i = rl ; i <= rr; i++){
        upd(0, N * 2 - 1, 1, o[i], {a[i], 1});
        ll c = get(0, N * 2 - 1, 1, m - abs(z - i));
        if(c > bes) bes = c, p = i; 
    }
    for(int i = z + 1; i <= rr; i++) upd(0, N * 2 - 1, 1, o[i], {0, 0});
    if(q == 0) rig[m] = {bes, p}; 
    else lef[m] = {bes, p};
    if(l != r) go(l, m, rl, p, q), go(m + 1, r, p, rr, q); 
}

ll findMaxAttraction(int n, int start, int d, int attraction[]){
    N = n, D = d; a = vl(N); F(i, N) a[i] = attraction[i]; z = start; 
    seg = vpll(N * 4, {0, 0}); o = vi(N); F(i, N) o[i] = i; 
    sort(all(o), [](auto x, auto y){return a[x] > a[y];});
    lef = rig = vpll(D + 1, {0, start}); 
    if(start != N - 1) go(0, D, start + 1, N - 1, 0);
    if(start != 0) go(0, D, 0, start - 1, 1);
    ll an = 0; 
    F(i, D) emax(rig[i + 1].f, rig[i].f), emax(lef[i + 1].f, lef[i].f); 
    FE(i, D) emax(an, rig[i].f + lef[D - i]);
    F(i, D) emax(an, rig[i].f + lef[D - i - 1] + a[start]);
    return an; 
}

컴파일 시 표준 에러 (stderr) 메시지

holiday.cpp: In function 'long long int findMaxAttraction(int, int, int, int*)':
holiday.cpp:134:32: error: no match for 'operator+' (operand types are 'long long int' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'})
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from holiday.cpp:10:
/usr/include/c++/10/bits/stl_iterator.h:508:5: note: candidate: 'template<class _Iterator> constexpr std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)'
  508 |     operator+(typename reverse_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:508:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::reverse_iterator<_Iterator>'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from holiday.cpp:10:
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note: candidate: 'template<class _Iterator> constexpr std::move_iterator<_IteratorL> std::operator+(typename std::move_iterator<_IteratorL>::difference_type, const std::move_iterator<_IteratorL>&)'
 1540 |     operator+(typename move_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::move_iterator<_IteratorL>'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6022:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6022 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6022:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:56,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 1160 |     operator+(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const _CharT*' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:56,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.tcc:1180:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(_CharT, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 1180 |     operator+(_CharT __lhs, const basic_string<_CharT, _Traits, _Alloc>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1180:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6059:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
 6059 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6059:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6075:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, _CharT)'
 6075 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6075:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6087:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6087 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6087:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6093:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
 6093 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6093:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6099:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
 6099 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6099:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6121:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const _CharT*, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
 6121 |     operator+(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6121:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const _CharT*' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6127:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(_CharT, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
 6127 |     operator+(_CharT __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6127:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6133:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, const _CharT*)'
 6133 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6133:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6139:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, _CharT)'
 6139 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6139:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from holiday.cpp:26:
/usr/include/c++/10/complex:331:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator+(const std::complex<_Tp>&, const std::complex<_Tp>&)'
  331 |     operator+(const complex<_Tp>& __x, const complex<_Tp>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/complex:331:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::complex<_Tp>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from holiday.cpp:26:
/usr/include/c++/10/complex:340:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator+(const std::complex<_Tp>&, const _Tp&)'
  340 |     operator+(const complex<_Tp>& __x, const _Tp& __y)
      |     ^~~~~~~~
/usr/include/c++/10/complex:340:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::complex<_Tp>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from holiday.cpp:26:
/usr/include/c++/10/complex:349:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator+(const _Tp&, const std::complex<_Tp>&)'
  349 |     operator+(const _Tp& __x, const complex<_Tp>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/complex:349:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::complex<_Tp>'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
In file included from holiday.cpp:26:
/usr/include/c++/10/complex:450:5: note: candidate: 'template<class _Tp> std::complex<_Tp> std::operator+(const std::complex<_Tp>&)'
  450 |     operator+(const complex<_Tp>& __x)
      |     ^~~~~~~~
/usr/include/c++/10/complex:450:5: note:   template argument deduction/substitution failed:
holiday.cpp:134:43: note:   mismatched types 'const std::complex<_Tp>' and 'long long int'
  134 |     FE(i, D) emax(an, rig[i].f + lef[D - i]);
      |                                           ^
holiday.cpp:135:31: error: no match for 'operator+' (operand types are 'long long int' and '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'})
  135 |     F(i, D) emax(an, rig[i].f + lef[D - i - 1] + a[start]);
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from holiday.cpp:10:
/usr/include/c++/10/bits/stl_iterator.h:508:5: note: candidate: 'template<class _Iterator> constexpr std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)'
  508 |     operator+(typename reverse_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:508:5: note:   template argument deduction/substitution failed:
holiday.cpp:135:46: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::reverse_iterator<_Iterator>'
  135 |     F(i, D) emax(an, rig[i].f + lef[D - i - 1] + a[start]);
      |                                              ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from holiday.cpp:10:
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note: candidate: 'template<class _Iterator> constexpr std::move_iterator<_IteratorL> std::operator+(typename std::move_iterator<_IteratorL>::difference_type, const std::move_iterator<_IteratorL>&)'
 1540 |     operator+(typename move_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note:   template argument deduction/substitution failed:
holiday.cpp:135:46: note:   '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::move_iterator<_IteratorL>'
  135 |     F(i, D) emax(an, rig[i].f + lef[D - i - 1] + a[start]);
      |                                              ^
In file included from /usr/include/c++/10/string:55,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.h:6022:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6022 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6022:5: note:   template argument deduction/substitution failed:
holiday.cpp:135:46: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'long long int'
  135 |     F(i, D) emax(an, rig[i].f + lef[D - i - 1] + a[start]);
      |                                              ^
In file included from /usr/include/c++/10/string:56,
                 from holiday.cpp:14:
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 1160 |     operator+(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note:   template argument deduction/substitution failed:
holiday.cpp:135:46: note:   mismatched