oj.uz

Submission #301112

# Submission time Handle Problem Language Result Execution time Memory
301112 2020-09-17T16:34:18 Z fishy15 Languages (IOI10_languages) C++17
0 / 100
 10000 ms 237308 KB 
#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 <unordered_map>
#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 hash_pair {
    size_t operator() (const array<int, 3> &p) const {
        return p[0] + (1 << 16) * p[1] + (1LL << 32) * p[2];
    }
};

ll conv(const array<int, 3> &arr) {
    return arr[0] + (1 << 16) * arr[1] + (1LL << 32) * arr[2];
}

using mm = map<ll, int>;

struct val {
    int tot;
    mm freq;
    val() : tot(0) {}
    ld qry(const mm &f) {
        if (tot == 0) return INFLL;
        ld ans = 0;
        for (auto p : f) {
            ld actual_f = 1.0 * freq[p.first] / tot;
            ld given_f = 1.0 * p.second / LEN;
            ll val = fabs(actual_f - given_f) * 100;
            ans += val * val;
        }
        return ans;
    }
    void upd(int arr[LEN]) {
        tot += LEN;
        for (int i = 0; i < LEN - 2; i++) {
            freq[conv({arr[i], arr[i + 1], arr[i + 2]})]++;
        }
    }
};

val langs[LANGS];

void excerpt(int arr[LEN]) {
    ld min_val = INFLL;
    int ans = 0;
    mm cnt;
    for (int i = 0; i < LEN - 2; i++) {
        cnt[conv({arr[i], arr[i + 1], arr[i + 2]})]++;
    }
    for (int i = 0; i < LANGS; i++) {
        ld val = langs[i].qry(cnt);
        if (val < min_val) {
            min_val = val;
            ans = i;
        }
    }

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

Subtask #1
0 / 30.0

# Verdict Execution time Memory Grader output
1 Execution timed out 10079 ms 234200 KB Time limit exceeded

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Execution timed out 10099 ms 237308 KB Time limit exceeded