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Submission #937827

# Submission time Handle Problem Language Result Execution time Memory
937827 2024-03-04T14:55:23 Z Alcabel The Big Prize (IOI17_prize) C++17
20 / 100
 47 ms 600 KB 
#include <bits/stdc++.h>
#include "prize.h"
using namespace std;

const int need = 473;

int find_best(int n) {
    int mxcnt = 0;
    vector<int> res;
    int nonmax = 0;
    for (int i = 0; i < min(n, need); ++i) {
        res = ask(i);
        if (res[0] + res[1] == 0) {
            return i;
        }
        if (res[0] + res[1] > mxcnt) {
            mxcnt = res[0] + res[1];
            nonmax = i;
        } else if (res[0] + res[1] < mxcnt) {
            ++nonmax;
        }
    }
    int last = need - 1;
    while (true) {
        int left = last, right = n;
        while (right - left > 1) {
            int mid = left + (right - left) / 2;
            res = ask(mid);
            if (res[0] + res[1] == 0) {
                return mid;
            }
            if (res[0] + res[1] < mxcnt) {
                right = mid;
            } else if (res[0] == nonmax) {
                left = mid;
            } else {
                right = mid;
            }
        }
        assert(right != n);
        last = right;
    }
}

Subtask #1
20.0 / 20.0

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

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 2 ms 344 KB Output is correct
5 Correct 2 ms 428 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 2 ms 424 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 3 ms 344 KB Output is correct
11 Incorrect 47 ms 600 KB Incorrect
12 Halted 0 ms 0 KB -