oj.uz

Submission #269602

# Submission time Handle Problem Language Result Execution time Memory
269602 2020-08-17T08:04:17 Z PeppaPig Last supper (IOI12_supper) C++14
17 / 100
 573 ms 148672 KB 
#include "advisor.h"
#include <bits/stdc++.h>

#define pii pair<int, int>
#define x first
#define y second

using namespace std;

static const int N = 1e5 + 5;

static int t[N];

static void update(int x, int k) {
    for(int i = x + 1; i < N; i += i & -i)
        t[i] += k;
}

static int query(int x, int ret = 0) {
    for(int i = x + 1; i; i -= i & -i)
        ret += t[i];
    return ret;
}

static queue<int> col[N];

void ComputeAdvice(int *C, int n, int k, int M) {
    for(int i = 0; i < n; i++) col[C[i]].emplace(i);
    for(int i = 0; i < n; i++) col[i].emplace(1e9);

    priority_queue<pii> Q;
    for(int i = 0; i < k; i++) update(i, 1), Q.emplace(col[i].front(), i);
    for(int i = 0; i < n; i++) {
        col[C[i]].pop();
        if(query(C[i]) - query(C[i] - 1) == 1) {
            for(int j = 0; j < 15; j++) WriteAdvice(0);
            Q.emplace(col[C[i]].front(), C[i]);
        } else {
            pii now = Q.top(); Q.pop();
            int idx = query(now.y); 

            for(int j = 0; j < 15; j++) WriteAdvice(idx >> j & 1);
            Q.emplace(col[C[i]].front(), C[i]);

            update(now.y, -1), update(C[i], 1);
        }
    }
}

#include "assistant.h"
#include <bits/stdc++.h>

using namespace std;

static const int N = 1e5 + 5;

static int t[N];

static void update(int x, int k) {
    for(int i = x + 1; i < N; i += i & -i)
        t[i] += k;
}

static int query(int x, int ret = 0) {
    for(int i = x + 1; i; i -= i & -i)
        ret += t[i];
    return ret;
}

void Assist(unsigned char *A, int n, int k, int R) {
    for(int i = 0; i < k; i++) update(i, 1);
    for(int i = 0; i < n; i++) {
        int now = GetRequest();
        if(query(now) - query(now - 1) == 1) continue;
        
        int idx = 0;
        for(int j = 15 * i; j < 15 * (i + 1); j++)
            if(A[j] == 1) idx += (1 << (j - 15 * i));
        
        int l = 0, r = n - 1;
        while(l < r) {
            int mid = (l + r) >> 1;
            if(query(mid) >= idx) r = mid;
            else l = mid + 1;
        }

        PutBack(r);
        update(r, -1), update(now, 1);
    }
}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 135408 KB Output is correct
2 Correct 53 ms 135216 KB Output is correct
3 Correct 63 ms 135416 KB Output is correct
4 Correct 63 ms 135664 KB Output is correct
5 Incorrect 56 ms 135672 KB Error - advice is too long
6 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 136688 KB Output is correct
2 Correct 277 ms 142064 KB Output is correct
3 Incorrect 469 ms 148536 KB Error - Putting back a color that is not on the scaffold
4 Halted 0 ms 0 KB -

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 397 ms 144936 KB Output is correct
2 Correct 504 ms 148424 KB Output is correct
3 Correct 505 ms 148504 KB Output is correct
4 Correct 480 ms 148424 KB Output is correct
5 Correct 474 ms 148400 KB Output is correct
6 Correct 496 ms 148512 KB Output is correct
7 Correct 479 ms 148464 KB Output is correct
8 Correct 511 ms 148432 KB Output is correct
9 Correct 460 ms 148672 KB Output is correct
10 Correct 509 ms 148472 KB Output is correct

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 65 ms 135560 KB Error - advice is too long
2 Halted 0 ms 0 KB -

Subtask #5
8.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 519 ms 147376 KB Output is partially correct - 1500000 bits used
2 Correct 512 ms 147560 KB Output is partially correct - 1500000 bits used
3 Correct 486 ms 147232 KB Output is partially correct - 1500000 bits used
4 Correct 573 ms 147400 KB Output is partially correct - 1500000 bits used
5 Correct 521 ms 147176 KB Output is partially correct - 1500000 bits used
6 Correct 554 ms 147392 KB Output is partially correct - 1500000 bits used
7 Correct 527 ms 147176 KB Output is partially correct - 1497585 bits used
8 Correct 508 ms 147480 KB Output is partially correct - 1500000 bits used
9 Correct 495 ms 147296 KB Output is partially correct - 1500000 bits used
10 Correct 560 ms 147408 KB Output is partially correct - 1500000 bits used