제출 #300570

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
300570		fishy15	Languages (IOI10_languages)	C++17	66 / 100	2253 ms	21240 KiB

lang

#include <iostream>
#include <iomanip>
#include <fstream>
#include <vector>
#include <array>
#include <algorithm>
#include <utility>
#include <map>
#include <queue>
#include <set>
#include <cmath>
#include <cstdio>
#include <cstring>
#include "lang.h"
#include "grader.h"

#define ll long long
#define ld long double
#define eps 1e-8
#define MOD 1000000007

#define INF 0x3f3f3f3f
#define INFLL 0x3f3f3f3f3f3f3f3f

// change if necessary
#define MAXN 70000

using namespace std;

// replace this back when submit
const int LEN = 100;
const int LANGS = 56;

struct val {
    int tot;
    int freq[MAXN];
    val() {
        memset(freq, 0, sizeof freq);
    }
    double qry(int arr[LEN]) {
        if (tot == 0) return -INFLL;
        double ans = 0;
        for (int i = 0; i < LEN; i++) {
            ans += log(1.0 * freq[arr[i]] / tot);
        }
        return ans;
    }
    void upd(int arr[LEN]) {
        tot += LEN;
        for (int i = 0; i < LEN; i++) {
            freq[arr[i]]++;
        }
    }
};

val langs[LANGS];

void excerpt(int arr[LEN]) {
    ll max_val = -INFLL;
    int ans = 0;
    for (int i = 0; i < LANGS; i++) {
        double val = langs[i].qry(arr);
        if (val > max_val) {
            max_val = val;
            ans = i;
        }
    }

    int correct = language(ans);
    langs[correct].upd(arr);
}

• Subtask 1: 30 / 30
• Subtask 2: 36 / 80