Submission #1011453

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1011453	2024-06-30T13:55:26 Z	Double_Slash	Languages (IOI10_languages)	C++17	Compilation error	0 ms	0 KB

lang

#include "lang.h"
#include "grader.h"
#include <bits/extc++.h>
 
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
using pint = pair<int, int>;
 
double magic(double x) {
	return abs(x);
}

template <typename T, class Hash, int MAX>
struct Data {
	int tot = 0;
    gp_hash_table<T, int, Hash> m;
    set<pair<int, T>> inv;
 
	double operator&(const Data<T, Hash, MAX> &o) const {
		double ret = 0;
		for (auto [k, v]: m) {
			ret += magic((double) v / tot - (o.m.find(k) != m.end() ? (double) *o.m.find(k) / o.tot : 0));
		}
		for (auto [k, v]: o.m) {
			if (m.find(k) == m.end()) ret += magic((double) v / o.tot);
		}
		return ret;
	}
 
	void operator+=(const Data<T, Hash, MAX> &o) {
		for (auto &[k, v]: o.m) {
          inv.erase({m[k], k});
			inv.emplace(m[k] += v, k);
		}
		tot += o.tot;
      while (inv.size() > MAX) {
          tot -= inv.begin()->first;
          m.erase(inv.begin()->second);
        inv.erase(inv.begin());
}
	}};

struct hash2 {
ll operator() (const pint &x) const { return (ll) x.first << 16 | x.second; }
};
struct hash3 {
ll operator()(const array<int, 3> &x) const { return ((ll) x[0] << 32) | ((ll) x[1] << 16) | x[2]; }
};
 
struct Profile {
Data<int, hash<int>, 100> sing;
  Data<pint, hash2, 100> doub;
  Data<array<int, 3>, hash3, 100> trip;
 
	Profile() {}
 
	Profile(int *arr) {
		for (int i = 0; i < 100; ++i) {
          sing.m[arr[i]]++;
          if (i) doub.m[{arr[i - 1], arr[i]}]++;
          if (i >=2) trip.m[{arr[i - 2], arr[i - 1], arr[i]}];
		}
      for (auto [k, v]: sing.m) sing.inv.emplace(v, k);
      for (auto [k, v]: doub.m) doub.inv.emplace(v, k);
            for (auto [k, v]: trip.m) trip.inv.emplace(v, k);
      
      sing.tot = 100;
      doub.tot = 99;
      trip.tot = 98;
	}
 
	double operator&(const Profile &o) const {
		return (sing & o.sing) + (doub & o.doub) + (trip & o.trip);
	}
 
	void operator+=(const Profile &o) {
      sing += o.sing;
doub += o.doub;
      trip += o.trip;
	}
} profile[56];
 
void excerpt(int *E) {
	Profile p(E);
	pair<double, int> mn{1e18, 0};
	for (int i = 0; i < 56; ++i) {
		mn = min(mn, {p & profile[i], i});
	}
	int ans = language(mn.second);
	profile[ans] += p;
}

Compilation message

lang.cpp: In instantiation of 'double Data<T, Hash, MAX>::operator&(const Data<T, Hash, MAX>&) const [with T = int; Hash = std::hash<int>; int MAX = 100]':
lang.cpp:74:20:   required from here
lang.cpp:23:62: error: invalid cast from type 'const std::pair<const int, int>' to type 'double'
   23 |    ret += magic((double) v / tot - (o.m.find(k) != m.end() ? (double) *o.m.find(k) / o.tot : 0));
      |                                                              ^~~~~~~~~~~~~~~~~~~~~
lang.cpp: In instantiation of 'double Data<T, Hash, MAX>::operator&(const Data<T, Hash, MAX>&) const [with T = std::pair<int, int>; Hash = hash2; int MAX = 100]':
lang.cpp:74:38:   required from here
lang.cpp:23:62: error: invalid cast from type 'const std::pair<const std::pair<int, int>, int>' to type 'double'
lang.cpp: In instantiation of 'double Data<T, Hash, MAX>::operator&(const Data<T, Hash, MAX>&) const [with T = std::array<int, 3>; Hash = hash3; int MAX = 100]':
lang.cpp:74:56:   required from here
lang.cpp:23:62: error: invalid cast from type 'const std::pair<const std::array<int, 3>, int>' to type 'double'