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Submission #244836

# Submission time Handle Problem Language Result Execution time Memory
244836 2020-07-05T07:09:17 Z NONAME Kas (COCI17_kas) C++14
70 / 100
 2000 ms 142872 KB 
#include <bits/stdc++.h>
#define dbg(x) cerr << #x << " = " << x << "\n"
#define fast_io ios_base::sync_with_stdio(0); cin.tie(0); cout.tie()
using namespace std;
using ll = long long;

const int fx = -(3e5 + 100);

int n, a[500], total;
map <int, int> f[500];
map <int, bool> mk[500];

int rec(int p, int cur) {
    if (p == n)
        return (cur == 0) ? 0 : -3e5;

    if (mk[p][int(1e5) + cur])
        return f[p][int(1e5) + cur];

    int res = max(rec(p + 1, cur),
              max(rec(p + 1, cur - a[p]), rec(p + 1, cur + a[p]) + a[p]));

    mk[p][int(1e5) + cur] = 1;
    return f[p][int(1e5) + cur] = res;
}

int main() {
    fast_io;

    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
        total += a[i];
    }

    //for (int i = 0; i < n; ++i)
    //for (int j = 0; j <= 3e5; ++j)
        //f[i][j] = fx;

    int res = rec(0, 0);
    cout << res + (total - 2 * res) << "\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 640 KB Output is correct
2 Correct 6 ms 512 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 7 ms 896 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 640 KB Output is correct
2 Correct 8 ms 896 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 768 KB Output is correct
2 Correct 7 ms 768 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1152 KB Output is correct
2 Correct 10 ms 1152 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 2560 KB Output is correct
2 Correct 21 ms 2432 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 5120 KB Output is correct
2 Correct 20 ms 2560 KB Output is correct

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2096 ms 142872 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2094 ms 140944 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2090 ms 138344 KB Time limit exceeded
2 Halted 0 ms 0 KB -