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Submission #16994

# Submission time Handle Problem Language Result Execution time Memory
16994 2015-11-03T17:38:10 Z erdemkiraz Rice Hub (IOI11_ricehub) C++
25 / 100
 30 ms 25160 KB 
#include <bits/stdc++.h>
#include "ricehub.h"

using namespace std;

#define type(x) __typeof((x).begin())
#define foreach(it, x) for(type(x) it = (x).begin(); it != (x).end(); it++)

typedef long long ll;
typedef pair < int, int > ii;

const int inf = 1e9 + 333;
const ll linf = 1e18 + inf;

const int N = 1e6 + 5;

int n;
ll m;
int a[N];
ll L[N], R[N];

int ptr;

ll getL(int i, int j) {
    return (ll) (j - i + 1) * a[j] - (L[j] - L[i - 1]);
}

ll getR(int i, int j) {
    return L[j] - L[i - 1] - (ll) (j - i + 1) * a[i];
}

bool check(int i, int j) {
    ll need = getL(i, j);
    if(need > m)
        return 0;
    while(ptr + 1 <= n and need + getR(j, ptr + 1) <= m)
        ptr++;
    return 1;
}

int solve() {
    for(int i = 1; i <= n; i++)
        L[i] = L[i - 1] + a[i];
    for(int i = n; i >= 1; i--)
        R[i] = R[i + 1] + a[i];
    :: ptr = 1;
    int ptr = 1, ans = 1;
    for(int i = 1; i <= n; i++) {
        while(ptr + 1 <= n and check(i, ptr + 1))
            ptr++;
        //printf("i = %d ptr = %d :: ptr = %d\n", i, ptr, :: ptr);
        ans = max(ans, :: ptr - i + 1);
    }
    return ans;
}

int besthub(int R, int L, int X[], long long B) {
    n = R;
    m = B;
    for(int i = 0; i < n; i++) {
        a[i + 1] = X[i];
        X[i] = L - X[i] + 1;
    }
    int ans = solve();
    for(int i = 1; i <= n; i++) {
        a[i] = X[n - i];
    }
    return max(ans, solve());
}

Subtask #1
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 25160 KB Output is correct
2 Correct 0 ms 25160 KB Output is correct
3 Correct 0 ms 25160 KB Output is correct
4 Correct 0 ms 25160 KB Output is correct
5 Incorrect 0 ms 25160 KB Output isn't correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 25160 KB Output is correct
2 Correct 0 ms 25160 KB Output is correct
3 Correct 0 ms 25160 KB Output is correct
4 Correct 0 ms 25160 KB Output is correct
5 Correct 0 ms 25160 KB Output is correct
6 Correct 0 ms 25160 KB Output is correct
7 Correct 0 ms 25160 KB Output is correct
8 Correct 0 ms 25160 KB Output is correct
9 Correct 0 ms 25160 KB Output is correct
10 Correct 0 ms 25160 KB Output is correct
11 Correct 0 ms 25160 KB Output is correct
12 Correct 0 ms 25160 KB Output is correct
13 Correct 0 ms 25160 KB Output is correct
14 Correct 0 ms 25160 KB Output is correct
15 Correct 0 ms 25160 KB Output is correct
16 Correct 0 ms 25160 KB Output is correct
17 Correct 0 ms 25160 KB Output is correct
18 Correct 0 ms 25160 KB Output is correct
19 Correct 0 ms 25160 KB Output is correct
20 Correct 0 ms 25160 KB Output is correct
21 Correct 0 ms 25160 KB Output is correct
22 Correct 0 ms 25160 KB Output is correct
23 Correct 0 ms 25160 KB Output is correct
24 Correct 0 ms 25160 KB Output is correct
25 Correct 0 ms 25160 KB Output is correct
26 Correct 0 ms 25160 KB Output is correct
27 Correct 0 ms 25160 KB Output is correct
28 Correct 0 ms 25160 KB Output is correct

Subtask #3
0.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 25160 KB Output is correct
2 Correct 0 ms 25160 KB Output is correct
3 Correct 0 ms 25160 KB Output is correct
4 Correct 0 ms 25160 KB Output is correct
5 Correct 0 ms 25160 KB Output is correct
6 Correct 0 ms 25160 KB Output is correct
7 Correct 0 ms 25160 KB Output is correct
8 Correct 0 ms 25160 KB Output is correct
9 Correct 0 ms 25160 KB Output is correct
10 Correct 0 ms 25160 KB Output is correct
11 Correct 0 ms 25160 KB Output is correct
12 Correct 0 ms 25160 KB Output is correct
13 Correct 0 ms 25160 KB Output is correct
14 Correct 0 ms 25160 KB Output is correct
15 Incorrect 0 ms 25160 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #4
0.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 25160 KB Output is correct
2 Correct 6 ms 25160 KB Output is correct
3 Correct 16 ms 25160 KB Output is correct
4 Correct 24 ms 25160 KB Output is correct
5 Correct 13 ms 25160 KB Output is correct
6 Correct 13 ms 25160 KB Output is correct
7 Correct 25 ms 25160 KB Output is correct
8 Correct 25 ms 25160 KB Output is correct
9 Correct 12 ms 25160 KB Output is correct
10 Correct 12 ms 25160 KB Output is correct
11 Correct 28 ms 25160 KB Output is correct
12 Correct 30 ms 25160 KB Output is correct
13 Incorrect 0 ms 25160 KB Output isn't correct
14 Halted 0 ms 0 KB -