oj.uz

Submission #51305

# Submission time Handle Problem Language Result Execution time Memory
51305 2018-06-17T12:34:13 Z Nicksechko Bootfall (IZhO17_bootfall) C++14
44 / 100
 710 ms 3588 KB 
#include <iostream>
#include <fstream>
#include <set>
#include <map>
#include <cstdio>
#include <string>
#include <vector>
#include <algorithm>
#include <random>
#include <chrono>
#include <queue>
#include <unordered_map>
//#include <unordered_set>
#include <iomanip>
#include <stack>
#include <ctime>
#include <cassert>
#include <cmath>

#define y1 ups
#define left lll
#define right rrr
#define next nnn
//#define find fff

typedef unsigned long long ull;

using namespace std;

//mt19937_64 twister(chrono::steady_clock().now().time_since_epoch().count());
mt19937_64 twister(8888);

long long rnd(long long l, long long r)
{
    uniform_int_distribution<long long> dis(l, r);
    return dis(twister);
}

const int mod = (int)1e9 + 9;
//const int mod[2] = {(int)1e9 + 7, (int)1e9 + 9};
//const int st[2] = {887, 8887};'
const int maxn = 588;
const int inf = 1e4 + 88;
const int logn = 22;
const int maxa = 500*500 + 88;
const int block = 775;
const long long infll = 1e18 + 88;
const char sgl[5] = {'a', 'e', 'i', 'o', 'u'};
const int dx[] = {-1, 1, 0, 0};
const int dy[] = {0, 0, -1, 1};
const int knightx[] = {-2, -2, -1, -1, 1, 1, 2, 2};
const int knighty[] = {-1, 1, -2, 2, -2, 2, -1, 1};
const int kingx[] = {-1, -1, -1, 0, 0, 1, 1, 1};
const int kingy[] = {-1, 0, 1, -1, 1, -1, 0, 1};
const char sep = 'a' - 1;
const double eps = 1e-9;
const int maxn1 = 1e3 + 88;

//#define int long long

int a[588];
int ans[maxa], dp[maxa];
int all_sum;
vector<int> v;

int msum(int a, int b)
{
    return (a + b)%mod;
}

void add(int x)
{
    all_sum += x;
    for (int i = maxa - x - 1; i >= 0; i--)
        dp[i + x] = msum(dp[i + x], dp[i]);
}

void del(int x)
{
    all_sum -= x;
    for (int i = 0; i + x < maxa; i++)
        dp[i + x] = msum(dp[i + x], mod - dp[i]);
}

void solve()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
//    ifstream cin("input.txt");
//    ofstream cout("output.txt");
//    ifstream cin("bootfall.in");
//    ofstream cout("bootfall.out");
    int n, i, j;
    cin >> n;
    dp[0] = 1;
    for (i = 0; i < n; i++)
    {
        cin >> a[i];
        add(a[i]);
    }
    if ((all_sum&1) || dp[all_sum >> 1] == 0)
    {
        cout << 0;
        return;
    }
    for (i = 1; i < maxa; i++)
        ans[i] = true;
    for (i = 0; i < n; i++)
    {
        del(a[i]);
        for (j = 1; j < maxa; j++)
            if (((all_sum + j)&1) || dp[(all_sum + j) >> 1] == 0)
                ans[j] = false;
        add(a[i]);
    }
    for (i = 0; i < maxa; i++)
        if (ans[i])
            v.push_back(i);
    cout << v.size() << "\n";
    for (i = 0; i < v.size(); i++)
        cout << v[i] << " ";
}

//#undef int

int main()
{
//    srand(time(0));
//    srand(8);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
//    ifstream cin("input.txt");
//    ofstream cout("output.txt");
//    ifstream cin("output.txt");
//    ifstream fin("12.out");
//    int a, b, i = 0;
//    while (cin >> a)
//    {
//        fin >> b;
//        if (a != b)
//        {
//            cout << i << " " << a << " " << b;
//            return 0;
//        }
//        i++;
//    }
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);
//    freopen("f.in", "r", stdin);
//    freopen("f.out", "w", stdout);
//    int t = 10000;
//    while (t--)
//    {
//        if (t == 9947)
//            t = 9947;
//        gen();
//        cout << t << endl;
//        brut();
//        if (!solve())
//        {
//            cout << "kek";
//            return 0;
//        }
//    }
    solve();
    return 0;
}

Compilation message

bootfall.cpp: In function 'void solve()':
bootfall.cpp:121:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < v.size(); i++)
                 ~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2296 KB Output is correct
2 Correct 16 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 16 ms 2448 KB Output is correct
5 Correct 27 ms 2708 KB Output is correct
6 Correct 19 ms 2808 KB Output is correct
7 Correct 18 ms 2808 KB Output is correct
8 Correct 25 ms 2808 KB Output is correct
9 Correct 24 ms 2808 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2296 KB Output is correct
2 Correct 16 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 16 ms 2448 KB Output is correct
5 Correct 27 ms 2708 KB Output is correct
6 Correct 19 ms 2808 KB Output is correct
7 Correct 18 ms 2808 KB Output is correct
8 Correct 25 ms 2808 KB Output is correct
9 Correct 24 ms 2808 KB Output is correct
10 Correct 58 ms 2808 KB Output is correct
11 Correct 64 ms 2808 KB Output is correct
12 Correct 58 ms 2808 KB Output is correct
13 Correct 63 ms 2808 KB Output is correct
14 Correct 56 ms 2808 KB Output is correct
15 Correct 59 ms 2808 KB Output is correct
16 Correct 64 ms 2808 KB Output is correct
17 Correct 39 ms 2808 KB Output is correct
18 Correct 49 ms 2808 KB Output is correct
19 Correct 53 ms 2808 KB Output is correct
20 Correct 57 ms 2808 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2296 KB Output is correct
2 Correct 16 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 16 ms 2448 KB Output is correct
5 Correct 27 ms 2708 KB Output is correct
6 Correct 19 ms 2808 KB Output is correct
7 Correct 18 ms 2808 KB Output is correct
8 Correct 25 ms 2808 KB Output is correct
9 Correct 24 ms 2808 KB Output is correct
10 Correct 58 ms 2808 KB Output is correct
11 Correct 64 ms 2808 KB Output is correct
12 Correct 58 ms 2808 KB Output is correct
13 Correct 63 ms 2808 KB Output is correct
14 Correct 56 ms 2808 KB Output is correct
15 Correct 59 ms 2808 KB Output is correct
16 Correct 64 ms 2808 KB Output is correct
17 Correct 39 ms 2808 KB Output is correct
18 Correct 49 ms 2808 KB Output is correct
19 Correct 53 ms 2808 KB Output is correct
20 Correct 57 ms 2808 KB Output is correct
21 Correct 119 ms 2808 KB Output is correct
22 Correct 141 ms 2824 KB Output is correct
23 Correct 95 ms 2824 KB Output is correct
24 Correct 203 ms 2860 KB Output is correct
25 Correct 168 ms 2884 KB Output is correct
26 Correct 180 ms 2884 KB Output is correct
27 Correct 177 ms 2884 KB Output is correct
28 Correct 233 ms 2884 KB Output is correct
29 Correct 187 ms 2992 KB Output is correct
30 Correct 226 ms 2992 KB Output is correct
31 Correct 183 ms 2992 KB Output is correct
32 Correct 200 ms 2992 KB Output is correct
33 Correct 179 ms 2992 KB Output is correct
34 Correct 251 ms 2992 KB Output is correct
35 Correct 178 ms 2992 KB Output is correct
36 Correct 186 ms 2992 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2296 KB Output is correct
2 Correct 16 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 16 ms 2448 KB Output is correct
5 Correct 27 ms 2708 KB Output is correct
6 Correct 19 ms 2808 KB Output is correct
7 Correct 18 ms 2808 KB Output is correct
8 Correct 25 ms 2808 KB Output is correct
9 Correct 24 ms 2808 KB Output is correct
10 Correct 58 ms 2808 KB Output is correct
11 Correct 64 ms 2808 KB Output is correct
12 Correct 58 ms 2808 KB Output is correct
13 Correct 63 ms 2808 KB Output is correct
14 Correct 56 ms 2808 KB Output is correct
15 Correct 59 ms 2808 KB Output is correct
16 Correct 64 ms 2808 KB Output is correct
17 Correct 39 ms 2808 KB Output is correct
18 Correct 49 ms 2808 KB Output is correct
19 Correct 53 ms 2808 KB Output is correct
20 Correct 57 ms 2808 KB Output is correct
21 Correct 119 ms 2808 KB Output is correct
22 Correct 141 ms 2824 KB Output is correct
23 Correct 95 ms 2824 KB Output is correct
24 Correct 203 ms 2860 KB Output is correct
25 Correct 168 ms 2884 KB Output is correct
26 Correct 180 ms 2884 KB Output is correct
27 Correct 177 ms 2884 KB Output is correct
28 Correct 233 ms 2884 KB Output is correct
29 Correct 187 ms 2992 KB Output is correct
30 Correct 226 ms 2992 KB Output is correct
31 Correct 183 ms 2992 KB Output is correct
32 Correct 200 ms 2992 KB Output is correct
33 Correct 179 ms 2992 KB Output is correct
34 Correct 251 ms 2992 KB Output is correct
35 Correct 178 ms 2992 KB Output is correct
36 Correct 186 ms 2992 KB Output is correct
37 Correct 403 ms 3088 KB Output is correct
38 Correct 365 ms 3088 KB Output is correct
39 Correct 481 ms 3088 KB Output is correct
40 Correct 558 ms 3180 KB Output is correct
41 Correct 479 ms 3180 KB Output is correct
42 Correct 496 ms 3180 KB Output is correct
43 Correct 457 ms 3272 KB Output is correct
44 Correct 454 ms 3404 KB Output is correct
45 Correct 451 ms 3404 KB Output is correct
46 Correct 503 ms 3404 KB Output is correct
47 Correct 445 ms 3404 KB Output is correct
48 Correct 482 ms 3404 KB Output is correct
49 Correct 454 ms 3404 KB Output is correct
50 Correct 474 ms 3404 KB Output is correct
51 Correct 140 ms 3404 KB Output is correct
52 Correct 502 ms 3408 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2296 KB Output is correct
2 Correct 16 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 16 ms 2448 KB Output is correct
5 Correct 27 ms 2708 KB Output is correct
6 Correct 19 ms 2808 KB Output is correct
7 Correct 18 ms 2808 KB Output is correct
8 Correct 25 ms 2808 KB Output is correct
9 Correct 24 ms 2808 KB Output is correct
10 Correct 58 ms 2808 KB Output is correct
11 Correct 64 ms 2808 KB Output is correct
12 Correct 58 ms 2808 KB Output is correct
13 Correct 63 ms 2808 KB Output is correct
14 Correct 56 ms 2808 KB Output is correct
15 Correct 59 ms 2808 KB Output is correct
16 Correct 64 ms 2808 KB Output is correct
17 Correct 39 ms 2808 KB Output is correct
18 Correct 49 ms 2808 KB Output is correct
19 Correct 53 ms 2808 KB Output is correct
20 Correct 57 ms 2808 KB Output is correct
21 Correct 119 ms 2808 KB Output is correct
22 Correct 141 ms 2824 KB Output is correct
23 Correct 95 ms 2824 KB Output is correct
24 Correct 203 ms 2860 KB Output is correct
25 Correct 168 ms 2884 KB Output is correct
26 Correct 180 ms 2884 KB Output is correct
27 Correct 177 ms 2884 KB Output is correct
28 Correct 233 ms 2884 KB Output is correct
29 Correct 187 ms 2992 KB Output is correct
30 Correct 226 ms 2992 KB Output is correct
31 Correct 183 ms 2992 KB Output is correct
32 Correct 200 ms 2992 KB Output is correct
33 Correct 179 ms 2992 KB Output is correct
34 Correct 251 ms 2992 KB Output is correct
35 Correct 178 ms 2992 KB Output is correct
36 Correct 186 ms 2992 KB Output is correct
37 Correct 403 ms 3088 KB Output is correct
38 Correct 365 ms 3088 KB Output is correct
39 Correct 481 ms 3088 KB Output is correct
40 Correct 558 ms 3180 KB Output is correct
41 Correct 479 ms 3180 KB Output is correct
42 Correct 496 ms 3180 KB Output is correct
43 Correct 457 ms 3272 KB Output is correct
44 Correct 454 ms 3404 KB Output is correct
45 Correct 451 ms 3404 KB Output is correct
46 Correct 503 ms 3404 KB Output is correct
47 Correct 445 ms 3404 KB Output is correct
48 Correct 482 ms 3404 KB Output is correct
49 Correct 454 ms 3404 KB Output is correct
50 Correct 474 ms 3404 KB Output is correct
51 Correct 140 ms 3404 KB Output is correct
52 Correct 502 ms 3408 KB Output is correct
53 Correct 529 ms 3408 KB Output is correct
54 Correct 642 ms 3444 KB Output is correct
55 Correct 710 ms 3580 KB Output is correct
56 Correct 614 ms 3580 KB Output is correct
57 Correct 668 ms 3588 KB Output is correct
58 Correct 623 ms 3588 KB Output is correct
59 Incorrect 630 ms 3588 KB Output isn't correct
60 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 2296 KB Output is correct
2 Correct 16 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 16 ms 2448 KB Output is correct
5 Correct 27 ms 2708 KB Output is correct
6 Correct 19 ms 2808 KB Output is correct
7 Correct 18 ms 2808 KB Output is correct
8 Correct 25 ms 2808 KB Output is correct
9 Correct 24 ms 2808 KB Output is correct
10 Correct 58 ms 2808 KB Output is correct
11 Correct 64 ms 2808 KB Output is correct
12 Correct 58 ms 2808 KB Output is correct
13 Correct 63 ms 2808 KB Output is correct
14 Correct 56 ms 2808 KB Output is correct
15 Correct 59 ms 2808 KB Output is correct
16 Correct 64 ms 2808 KB Output is correct
17 Correct 39 ms 2808 KB Output is correct
18 Correct 49 ms 2808 KB Output is correct
19 Correct 53 ms 2808 KB Output is correct
20 Correct 57 ms 2808 KB Output is correct
21 Correct 119 ms 2808 KB Output is correct
22 Correct 141 ms 2824 KB Output is correct
23 Correct 95 ms 2824 KB Output is correct
24 Correct 203 ms 2860 KB Output is correct
25 Correct 168 ms 2884 KB Output is correct
26 Correct 180 ms 2884 KB Output is correct
27 Correct 177 ms 2884 KB Output is correct
28 Correct 233 ms 2884 KB Output is correct
29 Correct 187 ms 2992 KB Output is correct
30 Correct 226 ms 2992 KB Output is correct
31 Correct 183 ms 2992 KB Output is correct
32 Correct 200 ms 2992 KB Output is correct
33 Correct 179 ms 2992 KB Output is correct
34 Correct 251 ms 2992 KB Output is correct
35 Correct 178 ms 2992 KB Output is correct
36 Correct 186 ms 2992 KB Output is correct
37 Correct 403 ms 3088 KB Output is correct
38 Correct 365 ms 3088 KB Output is correct
39 Correct 481 ms 3088 KB Output is correct
40 Correct 558 ms 3180 KB Output is correct
41 Correct 479 ms 3180 KB Output is correct
42 Correct 496 ms 3180 KB Output is correct
43 Correct 457 ms 3272 KB Output is correct
44 Correct 454 ms 3404 KB Output is correct
45 Correct 451 ms 3404 KB Output is correct
46 Correct 503 ms 3404 KB Output is correct
47 Correct 445 ms 3404 KB Output is correct
48 Correct 482 ms 3404 KB Output is correct
49 Correct 454 ms 3404 KB Output is correct
50 Correct 474 ms 3404 KB Output is correct
51 Correct 140 ms 3404 KB Output is correct
52 Correct 502 ms 3408 KB Output is correct
53 Correct 529 ms 3408 KB Output is correct
54 Correct 642 ms 3444 KB Output is correct
55 Correct 710 ms 3580 KB Output is correct
56 Correct 614 ms 3580 KB Output is correct
57 Correct 668 ms 3588 KB Output is correct
58 Correct 623 ms 3588 KB Output is correct
59 Incorrect 630 ms 3588 KB Output isn't correct
60 Halted 0 ms 0 KB -