답안 #804694

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
804694	2023-08-03T10:53:44 Z	Ellinor	커다란 상품 (IOI17_prize)	C++14	20 / 100	1 ms	344 KB

prize

#include <bits/stdc++.h>
using namespace std;

#define rep(i,a,b) for (int i = (a); i < (b); i++)
#define pb push_back
typedef long long ll;
typedef pair<int, int> pii;

#include "prize.h"

int find_best(int n) 
{
    int ans;
    int low = 0, high = n - 1;
    int mid;
    while (low <= high)
    {
        mid = (low + high) / 2;

        std::vector<int> res = ask(mid);
        if(res[0] + res[1] == 0) ans = mid;

        if (res[0] > res[1]) high = mid - 1;
        else low = mid + 1;
    }

	return ans;
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:27:9: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |  return ans;
      |         ^~~

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	296 KB	Output is correct
3	Correct	1 ms	288 KB	Output is correct
4	Correct	1 ms	292 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	288 KB	Output is correct
7	Correct	1 ms	312 KB	Output is correct
8	Correct	1 ms	276 KB	Output is correct
9	Correct	0 ms	288 KB	Output is correct
10	Correct	1 ms	256 KB	Output is correct

Subtask #2

0 / 80.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	292 KB	Output is correct
2	Correct	1 ms	292 KB	Output is correct
3	Correct	1 ms	316 KB	Output is correct
4	Correct	1 ms	296 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	0 ms	292 KB	Output is correct
7	Correct	1 ms	296 KB	Output is correct
8	Correct	1 ms	208 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	208 KB	Output is correct
11	Incorrect	1 ms	208 KB	answer is not correct
12	Halted	0 ms	0 KB	-