oj.uz

Submission #1075863

# Submission time Handle Problem Language Result Execution time Memory
1075863 2024-08-26T09:33:22 Z mdn2002 The Big Prize (IOI17_prize) C++14
20 / 100
 57 ms 596 KB 
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;

int find_best(int n) {
	int mx = 0, lim = 500;
	for (int i = 0; i < min(n, lim); i ++) {
        vector<int> a = ask(i);
        mx = max(mx, a[0] + a[1]);
        if (a[0] + a[1] == 0) return i;
	}

	for (int i = 0; i < n; i ++) {
        vector<int> a = ask(i);
        if (a[0] + a[1] == mx) {
            vector<int> c = ask(min(n - 1, i + 220));
            if (a[1] == c[1]) {
                i = min(n - 1, i + 220);
                continue;
            }
            int l = 0, r = 220;
            while (l < r) {
                int mid = (l + r) / 2;
                if (i + mid >= n) r = mid;
                else {
                    vector<int> b = ask(i + mid);
                    if (a[1] == b[1]) l = mid + 1;
                    else r = mid;
                }
            }
            i = l - 1;
        }
        else if (a[0] + a[1] == 0) return i;
	}
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:35:1: warning: control reaches end of non-void function [-Wreturn-type]
   35 | }
      | ^

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 344 KB Output is correct
2 Correct 12 ms 344 KB Output is correct
3 Correct 12 ms 344 KB Output is correct
4 Correct 23 ms 344 KB Output is correct
5 Correct 11 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 10 ms 344 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 10 ms 344 KB Output is correct
10 Correct 23 ms 344 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 596 KB Output is correct
2 Correct 11 ms 344 KB Output is correct
3 Correct 13 ms 344 KB Output is correct
4 Correct 18 ms 344 KB Output is correct
5 Correct 9 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 10 ms 344 KB Output is correct
8 Correct 14 ms 344 KB Output is correct
9 Correct 10 ms 344 KB Output is correct
10 Correct 14 ms 344 KB Output is correct
11 Incorrect 57 ms 344 KB Incorrect
12 Halted 0 ms 0 KB -