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Submission #224590

# Submission time Handle Problem Language Result Execution time Memory
224590 2020-04-18T13:14:17 Z my99n Rice Hub (IOI11_ricehub) C++14
0 / 100
 9 ms 640 KB 
#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;

long long s[100100];

int sum(int l, int r) {
    if (l == 0) return s[r];
    return s[r] - s[l - 1];
}

int besthub(int n, int L, int x[], long long b) {
    s[0] = x[0];
    for (int i = 1; i < n; i++) s[i] = 0;
    for (int i = 1; i < n; i++) s[i] = x[i] + s[i - 1];
    int l = 0, r = 0, ans = 1;

    for (int i = 0; i < n; i++) {
        int l = 0, r = n - 1;
        while (l < r) {
            int mid = (l + r) / 2;
            int med = (i + mid) / 2;
            int left = s[med] * (med - i + 1) - sum(i, med);
            int right = sum(med + 1, mid) - s[med] * (mid - med);
            if (left + right > b)
                r = mid;
            else
                l = mid + 1;
        }
        ans = max(ans, l - i + 1);
    }
    return ans;
}

Compilation message

ricehub.cpp: In function 'int besthub(int, int, int*, long long int)':
ricehub.cpp:16:9: warning: unused variable 'l' [-Wunused-variable]
     int l = 0, r = 0, ans = 1;
         ^
ricehub.cpp:16:16: warning: unused variable 'r' [-Wunused-variable]
     int l = 0, r = 0, ans = 1;
                ^

Subtask #1
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 640 KB Output isn't correct
2 Halted 0 ms 0 KB -