oj.uz

Submission #17001

# Submission time Handle Problem Language Result Execution time Memory
17001 2015-11-03T17:55:33 Z erdemkiraz Rice Hub (IOI11_ricehub) C++
0 / 100
 21 ms 6800 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 = 1e5 + 5;

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

int ptr, ans = 1;

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) {
    ptr = max(ptr, j);
    ll need = getL(i, j);
    if(need > m)
        return 0;
    ans = max(ans, j - i + 1);
    while(ptr + 1 <= n and a[ptr + 1] - a[j] <= a[j] - a[i]) {
        ptr++;
        if(getL(i, j) + getR(j, ptr) <= m)
            ans = max(ans, ptr - i + 1);
        else {
            ptr--;
            break;
        }
    }
    return 1;
}

void solve() {
    for(int i = 1; i <= n; i++)
        L[i] = L[i - 1] + a[i];
    :: ptr = 1;
    int ptr = 1;
    for(int i = 1; i <= n; i++) {
        ptr = max(ptr, i);
        while(ptr + 1 <= n and check(i, ptr + 1))
            ptr++;
    }
}

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;
    }
    for(int i = 1; i <= n; i++) {
        a[i] = X[n - i];
    }
    solve();
    return ans;
}

Subtask #1
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 6800 KB Output is correct
2 Correct 0 ms 6800 KB Output is correct
3 Correct 0 ms 6800 KB Output is correct
4 Correct 0 ms 6800 KB Output is correct
5 Incorrect 0 ms 6800 KB Output isn't correct

Subtask #2
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 6800 KB Output is correct
2 Correct 0 ms 6800 KB Output is correct
3 Correct 0 ms 6800 KB Output is correct
4 Correct 0 ms 6800 KB Output is correct
5 Correct 0 ms 6800 KB Output is correct
6 Correct 0 ms 6800 KB Output is correct
7 Correct 0 ms 6800 KB Output is correct
8 Correct 0 ms 6800 KB Output is correct
9 Correct 0 ms 6800 KB Output is correct
10 Correct 0 ms 6800 KB Output is correct
11 Correct 0 ms 6800 KB Output is correct
12 Correct 0 ms 6800 KB Output is correct
13 Incorrect 0 ms 6800 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
0.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 6800 KB Output is correct
2 Correct 0 ms 6800 KB Output is correct
3 Correct 0 ms 6800 KB Output is correct
4 Correct 0 ms 6800 KB Output is correct
5 Correct 0 ms 6800 KB Output is correct
6 Correct 0 ms 6800 KB Output is correct
7 Correct 0 ms 6800 KB Output is correct
8 Correct 0 ms 6800 KB Output is correct
9 Correct 0 ms 6800 KB Output is correct
10 Correct 0 ms 6800 KB Output is correct
11 Correct 0 ms 6800 KB Output is correct
12 Correct 0 ms 6800 KB Output is correct
13 Correct 0 ms 6800 KB Output is correct
14 Correct 0 ms 6800 KB Output is correct
15 Incorrect 0 ms 6800 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 6800 KB Output is correct
2 Correct 0 ms 6800 KB Output is correct
3 Correct 16 ms 6800 KB Output is correct
4 Correct 20 ms 6800 KB Output is correct
5 Correct 7 ms 6800 KB Output is correct
6 Correct 5 ms 6800 KB Output is correct
7 Correct 8 ms 6800 KB Output is correct
8 Correct 0 ms 6800 KB Output is correct
9 Correct 0 ms 6800 KB Output is correct
10 Correct 0 ms 6800 KB Output is correct
11 Correct 20 ms 6800 KB Output is correct
12 Correct 21 ms 6800 KB Output is correct
13 Incorrect 10 ms 6800 KB Output isn't correct
14 Halted 0 ms 0 KB -