oj.uz

Submission #173079

# Submission time Handle Problem Language Result Execution time Memory
173079 2020-01-03T10:18:14 Z emil_physmath Bank (IZhO14_bank) C++17
71 / 100
 1000 ms 79496 KB 
#include <algorithm>
#include <iostream>
#include <vector>
#include <set>
using namespace std;
typedef double ldouble;
typedef long long llong;
typedef unsigned int uint;

vector<uint> sumup[1001];
int sum[1 << 20], bits[1 << 20];

bool IsSet(uint mask, uint i)
{
    return mask & (1 << i);
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int n, m;
    cin >> n >> m;
    vector<int> a(n);
    for (int& x: a)
        cin >> x;
    vector<int> b(m);
    for (int& x: b)
        cin >> x;
    for (uint mask = 0; mask < (1 << m); ++mask)
    {
        int curSum = 0, curBits = 0;
        for (int i = 0; i < m; ++i)
            if (IsSet(mask, i))
            {
                ++curBits;
                curSum += b[i];
            }
        if (curSum <= 1000)
            sumup[curSum].push_back(mask);
        sum[mask] = curSum;
        bits[mask] = curBits;
    }
    vector<uint> possLeft;
    /* for (uint mask = 0; mask < (1 << m); ++mask)
        possLeft.push_back(mask); */
    possLeft.push_back((1 << m) - 1);
    vector<uint> temp;
    for (int i = 0; i < n; ++i)
    {
        temp.clear();
        // cerr << possLeft.size() << endl;
        for (uint left: possLeft)
        {
            if ((1 << bits[left]) < sumup[a[i]].size())
                for(uint mask = left; mask; mask = (mask - 1) & left)
                {
                    if (sum[mask] == a[i])
                        temp.push_back(left ^ mask);
                }
            else
                for (uint mask: sumup[a[i]])
                {
                    // cerr << "get " << a[i] << " with " << mask << endl;
                    if ((mask & left) == mask)
                        temp.push_back(left ^ mask);
                }
        }
        possLeft.clear();
        sort(temp.begin(), temp.end());
        for (int i = 0; i < temp.size(); ++i)
            if (!i || temp[i] != temp[i - 1])
               possLeft.push_back(temp[i]);
    }
    // cerr << possLeft.size() << endl;
    cout << (possLeft.size() ? "YES" : "NO");
}

Compilation message

bank.cpp: In function 'int main()':
bank.cpp:31:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (uint mask = 0; mask < (1 << m); ++mask)
                         ~~~~~^~~~~~~~~~
bank.cpp:56:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if ((1 << bits[left]) < sumup[a[i]].size())
                 ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
bank.cpp:72:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < temp.size(); ++i)
                         ~~^~~~~~~~~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 5 ms 888 KB Output is correct
5 Correct 99 ms 14788 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 98 ms 14220 KB Output is correct
9 Correct 99 ms 14456 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 380 KB Output is correct
8 Correct 2 ms 380 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 508 KB Output is correct
4 Correct 4 ms 632 KB Output is correct
5 Correct 4 ms 636 KB Output is correct
6 Correct 3 ms 508 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 3 ms 504 KB Output is correct

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 5 ms 888 KB Output is correct
5 Correct 99 ms 14788 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 98 ms 14220 KB Output is correct
9 Correct 99 ms 14456 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 380 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 3 ms 504 KB Output is correct
22 Correct 3 ms 508 KB Output is correct
23 Correct 4 ms 632 KB Output is correct
24 Correct 4 ms 636 KB Output is correct
25 Correct 3 ms 508 KB Output is correct
26 Correct 3 ms 504 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 3 ms 504 KB Output is correct
29 Correct 3 ms 504 KB Output is correct
30 Correct 3 ms 504 KB Output is correct
31 Correct 96 ms 13784 KB Output is correct
32 Correct 146 ms 16760 KB Output is correct
33 Correct 87 ms 9276 KB Output is correct
34 Correct 85 ms 8540 KB Output is correct
35 Correct 85 ms 8568 KB Output is correct
36 Correct 85 ms 8568 KB Output is correct
37 Correct 85 ms 8864 KB Output is correct
38 Correct 86 ms 8704 KB Output is correct
39 Correct 255 ms 18124 KB Output is correct
40 Correct 88 ms 10232 KB Output is correct
41 Correct 87 ms 9096 KB Output is correct
42 Correct 105 ms 14200 KB Output is correct
43 Correct 88 ms 10236 KB Output is correct
44 Correct 85 ms 8568 KB Output is correct
45 Correct 102 ms 14712 KB Output is correct
46 Correct 91 ms 11512 KB Output is correct
47 Correct 85 ms 8568 KB Output is correct
48 Correct 101 ms 14276 KB Output is correct
49 Correct 98 ms 14456 KB Output is correct
50 Correct 871 ms 22444 KB Output is correct
51 Correct 99 ms 14072 KB Output is correct
52 Correct 106 ms 13588 KB Output is correct
53 Execution timed out 1084 ms 79496 KB Time limit exceeded
54 Halted 0 ms 0 KB -