oj.uz

Submission #973408

# Submission time Handle Problem Language Result Execution time Memory
973408 2024-05-02T01:15:43 Z __Davit__ The Big Prize (IOI17_prize) C++17
20 / 100
 1 ms 600 KB 
#include "prize.h"
#include<bits/stdc++.h>

#define ll long long
#define lld long double
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define vr(v) v.begin(),v.end()
#define rv(v) v.rbegin(),v.rend()
#define Code ios_base::sync_with_stdio(false);
#define By cin.tie(NULL);
#define Davit cout.tie(NULL);
using namespace std;

namespace RND {

    mt19937 myrand(chrono::steady_clock::now().time_since_epoch().count());

    ll RANDOM(ll l, ll r) {
        ll res = myrand() % (r - l + 1) + l;
        return res;
    }

    void shuffle(vector<int> &a) {
        for (int i = 0; i < (int) a.size(); i++) {
            int idx = RANDOM(0, (int) a.size() - 1);
            swap(a[i], a[idx]);
        }
    }
};

int find_best(int n) {
    int ina = 0, inb = n - 1, answer = n - 1;
    while (ina <= inb) {
        int mid = (ina + inb) >> 1;
        vector<int> tmp = ask(mid);
        if (tmp[0] == tmp[1] && tmp[0] == 0) {
            return mid;
        }
        if (tmp[0]) {
            inb = mid - 1;
            answer = mid - 1;
        } else {
            ina = mid + 1;
            answer = mid + 1;
        }
    }


    return answer;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 596 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 600 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 428 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Incorrect 1 ms 600 KB answer is not correct
12 Halted 0 ms 0 KB -