oj.uz

답안 #115272

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
115272 2019-06-06T12:55:10 Z oolimry 쌀 창고 (IOI11_ricehub) C++14
68 / 100
 1000 ms 1536 KB 
#include "ricehub.h"
#include <bits/stdc++.h>

using namespace std;

int besthub(int R, int L, int X[], long long B)
{
    long long pre[R];
    pre[0] = X[0];
    for(int i = 1;i < R;i++){
        pre[i] = pre[i-1] + X[i];
    }
    long long ans = 0;
    for(int pos = 1;pos <= L;pos++){
        int lr = lower_bound(X,X+R,pos) - X;
        int rl = upper_bound(X,X+R,pos) - X;
        int low = 0;
        int high = 1000000;
        //cout << pos << " " << lr << " " << rl << " ";
        while(true){
            if(low == high - 1) break;
            int s = (low + high) / 2;
            int ll = lr - s;
            int rr = rl + s;
            if(ll < 0 || rr >= R){
                high = s;
                continue;
            }

            long long sum = 0ll;
            sum += pre[lr-1];
            if(ll > 0) sum -= pre[ll-1];
            sum = s * pos - sum;
            sum += pre[rr-1];
            sum -= pre[rl-1];
            sum -= s * pos;
            //cout << "\n" << pos << " " << sum << " " << s << "wow\n";
            if(sum > B){
                high = s;
            }
            else{
                low = s;
            }
        }
        int ll = lr - low;
        int rr = rl + low;
        long long sum = 0ll;
        if(lr > 0) sum += pre[lr-1];
        if(ll > 0) sum -= pre[ll-1];
        sum = low * pos - sum;
        if(rr > 0) sum += pre[rr-1];
        if(rl > 0) sum -= pre[rl-1];
        //assert(lr-1 >= 0);
        //assert(rr-1 >= 0);
        //assert(rl-1 >= 0);
        sum -= low * pos;
        long long nos = rr - ll;
        ans = max(nos, ans);
        if(ll > 0 && sum + (long long)(abs(pos - X[ll-1])) <= B){
            ans = max(nos+1,ans);
        }
        if(rr < R && sum + (long long)(abs(pos - X[rr])) <= B){
            ans = max(nos+1,ans);
        }
        //cout << low << "\n";
    }
    return ans;
}

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 304 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct

Subtask #3
26.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 81 ms 400 KB Output is correct
4 Correct 82 ms 404 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 3 ms 256 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 3 ms 256 KB Output is correct
18 Correct 3 ms 256 KB Output is correct
19 Correct 87 ms 376 KB Output is correct
20 Correct 89 ms 256 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 3 ms 384 KB Output is correct
23 Correct 4 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 101 ms 504 KB Output is correct
26 Correct 126 ms 384 KB Output is correct
27 Correct 99 ms 384 KB Output is correct
28 Correct 99 ms 384 KB Output is correct

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 596 KB Output is correct
2 Correct 21 ms 512 KB Output is correct
3 Execution timed out 1066 ms 1536 KB Time limit exceeded
4 Halted 0 ms 0 KB -