Submission #1252335

#	Time	Username	Problem	Language	Result	Execution time	Memory
1252335		NekoRolly	Festival (IOI25_festival)	C++20	Compilation error	0 ms	0 KiB

festival

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

struct coupon{
    ll p,t,id;
};

bool comp(coupon A,coupon B){ // *{P[i], T[i]}
    auto [p, a, ida] = A;
    auto [q, b, idb] = B;
    return a*b*p + b*q <= a*b*q + a*p;
}

vector<int> max_coupons(int A,vector<int> P,vector<int> T){
    int n = P.size();
    coupon a[n];

    for (int i=0; i<P.size(); i++)
        a[i] = {P[i], T[i], i};

    sort(a, a+n, comp);

    vector<int> vans;
    for (int i=0; i<n; i++)
        vans.push_back(a[i].id);

    return vans;
}

Compilation message (stderr)

festival.cpp:6:5: error: 'll' does not name a type
    6 |     ll p,t,id;
      |     ^~
festival.cpp: In function 'bool comp(coupon, coupon)':
festival.cpp:10:10: error: cannot decompose class type 'coupon' without non-static data members
   10 |     auto [p, a, ida] = A;
      |          ^~~~~~~~~~~
festival.cpp:11:10: error: cannot decompose class type 'coupon' without non-static data members
   11 |     auto [q, b, idb] = B;
      |          ^~~~~~~~~~~
festival.cpp: In function 'std::vector<int> max_coupons(int, std::vector<int>, std::vector<int>)':
festival.cpp:20:30: error: no match for 'operator=' (operand types are 'coupon' and '<brace-enclosed initializer list>')
   20 |         a[i] = {P[i], T[i], i};
      |                              ^
festival.cpp:5:8: note: candidate: 'constexpr coupon& coupon::operator=(const coupon&)'
    5 | struct coupon{
      |        ^~~~~~
festival.cpp:5:8: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const coupon&'
festival.cpp:5:8: note: candidate: 'constexpr coupon& coupon::operator=(coupon&&)'
festival.cpp:5:8: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'coupon&&'
festival.cpp:26:29: error: 'struct coupon' has no member named 'id'
   26 |         vans.push_back(a[i].id);
      |                             ^~