oj.uz

Submission #173620

# Submission time Handle Problem Language Result Execution time Memory
173620 2020-01-04T17:37:09 Z aleks5d Bootfall (IZhO17_bootfall) C++17
44 / 100
 286 ms 2780 KB 
//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("O3")
#include<bits/stdc++.h>

using ll = long long int;
using ull = unsigned long long int;
using dd = double;
using ldd = long double;

namespace HASH {
const ll mod197 = 1e9 + 7;
const ll mod199 = 1e9 + 9;
const ll modfft = 998244353;
ll MOD = mod197;
void Hplus(ll& h, ll b, ll mod = MOD) {
    h += b;
    if (h > mod)
        h -= mod;
}

void Hminus(ll& h, ll b, ll mod = MOD) {
    h -= b;
    if (h < 0)
        h += mod;
}

void Hmuliply(ll& h, ll b, ll mod = MOD) {
    h *= b;
    h %= mod;
}

ll Hdivider(ll x, ll mod = MOD) {
    if (x < 0)
        x += mod;
    ll ans = 1;
    ll n = mod - 2;
    while (n) {
        if (n & 1)
            Hmuliply(ans, x);
        n >>= 1;
        Hmuliply(x, x);
    }
    return ans;
}
}

namespace someUsefull {
template<typename T1, typename T2>
inline void checkMin(T1& a, T2 b) {
    if (a > b)
        a = b;
}

template<typename T1, typename T2>
inline void checkMax(T1& a, T2 b) {
    if (a < b)
        a = b;
}
}

//name spaces
using namespace std;
using namespace HASH;
using namespace someUsefull;
//end of name spaces

//defines
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()

#define NO cout << "NO" << '\n';
#define YES cout << "YES" << '\n';
//end of defines

//debug defines
#ifdef HOME
    #define debug(x) cout << #x << " " << x << endl;
    #define debug_p(x) cout << #x << " " << x.ff << " " << x.ss << endl;
    #define debug_v(x) {cout << #x << " "; for (auto ioi : x) cout << ioi << " "; cout << endl;}
    #define debug_vp(x) {cout << #x << " "; for (auto ioi : x) cout << '[' << ioi.ff << " " << ioi.ss << ']'; cout << endl;}
    #define debug_v_v(x) {cout << #x << "/*\n"; for (auto ioi : x) { for (auto ioi2 : ioi) cout << ioi2 << " "; cout << '\n';} cout << "*/" << #x << endl;}
    int jjj;
    #define wait() cin >> jjj;
    #define PO cout << "POMELO" << endl;
    #define OL cout << "OLIVA" << endl;
    #define gen_clock(x) ll x = clock(); cout << "Clock " << #x << " created" << endl;
    #define check_clock(x) cout << "Time spent in " << #x << ": " << clock() - x << endl; x = clock();
    #define reset_clock(x) x = clock();
    #define say(x) cout << x << endl;
#else
    #define debug(x) 0;
    #define debug_p(x) 0;
    #define debug_v(x) 0;
    #define debug_vp(x) 0;
    #define debug_v_v(x) 0;
    #define wait() 0;
    #define PO 0;
    #define OL 0;
    #define gen_clock(x) 0;
    #define check_clock(x) 0;
    #define reset_clock(x) 0;
    #define say(x) 0;
#endif // HOME
//end of debug defines

void solve() {
    int n;
    cin >> n;
    vector<int> arr(n);
    for (int i = 0; i < n; ++i)
        cin >> arr[i];
    vector<ll> dp(1e5);
    vector<int> canbe(1e5, 0);
    vector<ll> dp2(1e5);
    dp[0] = 1;
    dp2[0] = 1;
    for (int i = 0; i < n; ++i) {
        for (int j = dp.size() - 1; j >= arr[i]; --j) {
            Hplus(dp[j], dp[j - arr[i]]);
            Hplus(dp2[j], dp2[j - arr[i]], modfft);
        }
    }
    int ma = 0;
    for (int j = dp.size() - 1; j > 0; --j)
    if (dp[j] || dp2[j]) {
        ma = j;
        break;
    }
    if (ma & 1) {
        cout << 0;
        return;
    }
    if (dp[ma >> 1] == 0 && dp2[ma >> 1] == 0) {
        cout << 0;
        return;
    }
    for (int i = 0; i < n; ++i) {
        if (i != -1) {
            for (int j = arr[i]; j < dp.size(); ++j) {
                Hminus(dp[j], dp[j - arr[i]]);
                Hminus(dp2[j], dp2[j - arr[i]], modfft);
            }
        }
        int ma = 0;
        for (int i = dp.size() - 1; i > 0; --i) {
            if (dp[i] || dp2[i]) {
                ma = i;
                break;
            }
        }
        debug(i);
        //vector<int> opa(dp.begin(), dp.begin() + ma + 1);
        //debug_v(opa);
        debug(ma);
        for (int i = 0; i * 2 <= ma; ++i) {
            if (dp[i] || dp2[i]) {
                debug(i);
                debug(ma - i - i);
                ++canbe[ma - i - i];
            }
        }
        if (i != -1) {
            for (int j = dp.size() - 1; j >= arr[i]; --j) {
                Hplus(dp[j], dp[j - arr[i]]);
                Hplus(dp2[j], dp2[j - arr[i]], modfft);
            }
        }
    }
    vector<int> ans;
    for (int i = 0; i < dp.size(); ++i) {
        if (canbe[i] == n) {
            ans.push_back(i);
        }
    }
    cout << ans.size() << '\n';
    for (int i : ans)
        cout << i << " ";

}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t;
    t = 1;
  // cin >> t;
    for (int i = 0; i < t; ++i) {
        solve();
        cout << '\n';
    }
    return 0;

}

/*
5
3 2
3 -2
-2 -2
-2 2
0 0
*/

Compilation message

bootfall.cpp: In function 'void solve()':
bootfall.cpp:140:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int j = arr[i]; j < dp.size(); ++j) {
                                  ~~^~~~~~~~~~~
bootfall.cpp:92:23: warning: statement has no effect [-Wunused-value]
     #define debug(x) 0;
                       ^
bootfall.cpp:152:9: note: in expansion of macro 'debug'
         debug(i);
         ^~~~~
bootfall.cpp:92:23: warning: statement has no effect [-Wunused-value]
     #define debug(x) 0;
                       ^
bootfall.cpp:155:9: note: in expansion of macro 'debug'
         debug(ma);
         ^~~~~
bootfall.cpp:92:23: warning: statement has no effect [-Wunused-value]
     #define debug(x) 0;
                       ^
bootfall.cpp:158:17: note: in expansion of macro 'debug'
                 debug(i);
                 ^~~~~
bootfall.cpp:92:23: warning: statement has no effect [-Wunused-value]
     #define debug(x) 0;
                       ^
bootfall.cpp:159:17: note: in expansion of macro 'debug'
                 debug(ma - i - i);
                 ^~~~~
bootfall.cpp:171:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < dp.size(); ++i) {
                     ~~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2296 KB Output is correct
2 Correct 9 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 7 ms 2296 KB Output is correct
5 Correct 14 ms 2296 KB Output is correct
6 Correct 10 ms 2296 KB Output is correct
7 Correct 9 ms 2300 KB Output is correct
8 Correct 14 ms 2296 KB Output is correct
9 Correct 12 ms 2296 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2296 KB Output is correct
2 Correct 9 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 7 ms 2296 KB Output is correct
5 Correct 14 ms 2296 KB Output is correct
6 Correct 10 ms 2296 KB Output is correct
7 Correct 9 ms 2300 KB Output is correct
8 Correct 14 ms 2296 KB Output is correct
9 Correct 12 ms 2296 KB Output is correct
10 Correct 28 ms 2344 KB Output is correct
11 Correct 30 ms 2296 KB Output is correct
12 Correct 77 ms 2296 KB Output is correct
13 Correct 26 ms 2300 KB Output is correct
14 Correct 27 ms 2296 KB Output is correct
15 Correct 27 ms 2296 KB Output is correct
16 Correct 29 ms 2296 KB Output is correct
17 Correct 19 ms 2296 KB Output is correct
18 Correct 22 ms 2296 KB Output is correct
19 Correct 26 ms 2424 KB Output is correct
20 Correct 29 ms 2296 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2296 KB Output is correct
2 Correct 9 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 7 ms 2296 KB Output is correct
5 Correct 14 ms 2296 KB Output is correct
6 Correct 10 ms 2296 KB Output is correct
7 Correct 9 ms 2300 KB Output is correct
8 Correct 14 ms 2296 KB Output is correct
9 Correct 12 ms 2296 KB Output is correct
10 Correct 28 ms 2344 KB Output is correct
11 Correct 30 ms 2296 KB Output is correct
12 Correct 77 ms 2296 KB Output is correct
13 Correct 26 ms 2300 KB Output is correct
14 Correct 27 ms 2296 KB Output is correct
15 Correct 27 ms 2296 KB Output is correct
16 Correct 29 ms 2296 KB Output is correct
17 Correct 19 ms 2296 KB Output is correct
18 Correct 22 ms 2296 KB Output is correct
19 Correct 26 ms 2424 KB Output is correct
20 Correct 29 ms 2296 KB Output is correct
21 Correct 59 ms 2384 KB Output is correct
22 Correct 64 ms 2384 KB Output is correct
23 Correct 45 ms 2296 KB Output is correct
24 Correct 80 ms 2424 KB Output is correct
25 Correct 81 ms 2424 KB Output is correct
26 Correct 85 ms 2424 KB Output is correct
27 Correct 84 ms 2296 KB Output is correct
28 Correct 86 ms 2296 KB Output is correct
29 Correct 84 ms 2296 KB Output is correct
30 Correct 86 ms 2392 KB Output is correct
31 Correct 87 ms 2424 KB Output is correct
32 Correct 84 ms 2424 KB Output is correct
33 Correct 84 ms 2296 KB Output is correct
34 Correct 85 ms 2348 KB Output is correct
35 Correct 86 ms 2296 KB Output is correct
36 Correct 85 ms 2384 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2296 KB Output is correct
2 Correct 9 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 7 ms 2296 KB Output is correct
5 Correct 14 ms 2296 KB Output is correct
6 Correct 10 ms 2296 KB Output is correct
7 Correct 9 ms 2300 KB Output is correct
8 Correct 14 ms 2296 KB Output is correct
9 Correct 12 ms 2296 KB Output is correct
10 Correct 28 ms 2344 KB Output is correct
11 Correct 30 ms 2296 KB Output is correct
12 Correct 77 ms 2296 KB Output is correct
13 Correct 26 ms 2300 KB Output is correct
14 Correct 27 ms 2296 KB Output is correct
15 Correct 27 ms 2296 KB Output is correct
16 Correct 29 ms 2296 KB Output is correct
17 Correct 19 ms 2296 KB Output is correct
18 Correct 22 ms 2296 KB Output is correct
19 Correct 26 ms 2424 KB Output is correct
20 Correct 29 ms 2296 KB Output is correct
21 Correct 59 ms 2384 KB Output is correct
22 Correct 64 ms 2384 KB Output is correct
23 Correct 45 ms 2296 KB Output is correct
24 Correct 80 ms 2424 KB Output is correct
25 Correct 81 ms 2424 KB Output is correct
26 Correct 85 ms 2424 KB Output is correct
27 Correct 84 ms 2296 KB Output is correct
28 Correct 86 ms 2296 KB Output is correct
29 Correct 84 ms 2296 KB Output is correct
30 Correct 86 ms 2392 KB Output is correct
31 Correct 87 ms 2424 KB Output is correct
32 Correct 84 ms 2424 KB Output is correct
33 Correct 84 ms 2296 KB Output is correct
34 Correct 85 ms 2348 KB Output is correct
35 Correct 86 ms 2296 KB Output is correct
36 Correct 85 ms 2384 KB Output is correct
37 Correct 164 ms 2552 KB Output is correct
38 Correct 165 ms 2552 KB Output is correct
39 Correct 199 ms 2424 KB Output is correct
40 Correct 226 ms 2552 KB Output is correct
41 Correct 213 ms 2296 KB Output is correct
42 Correct 210 ms 2576 KB Output is correct
43 Correct 198 ms 2780 KB Output is correct
44 Correct 204 ms 2768 KB Output is correct
45 Correct 209 ms 2776 KB Output is correct
46 Correct 220 ms 2424 KB Output is correct
47 Correct 207 ms 2552 KB Output is correct
48 Correct 202 ms 2680 KB Output is correct
49 Correct 203 ms 2348 KB Output is correct
50 Correct 206 ms 2480 KB Output is correct
51 Correct 64 ms 2296 KB Output is correct
52 Correct 218 ms 2740 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2296 KB Output is correct
2 Correct 9 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 7 ms 2296 KB Output is correct
5 Correct 14 ms 2296 KB Output is correct
6 Correct 10 ms 2296 KB Output is correct
7 Correct 9 ms 2300 KB Output is correct
8 Correct 14 ms 2296 KB Output is correct
9 Correct 12 ms 2296 KB Output is correct
10 Correct 28 ms 2344 KB Output is correct
11 Correct 30 ms 2296 KB Output is correct
12 Correct 77 ms 2296 KB Output is correct
13 Correct 26 ms 2300 KB Output is correct
14 Correct 27 ms 2296 KB Output is correct
15 Correct 27 ms 2296 KB Output is correct
16 Correct 29 ms 2296 KB Output is correct
17 Correct 19 ms 2296 KB Output is correct
18 Correct 22 ms 2296 KB Output is correct
19 Correct 26 ms 2424 KB Output is correct
20 Correct 29 ms 2296 KB Output is correct
21 Correct 59 ms 2384 KB Output is correct
22 Correct 64 ms 2384 KB Output is correct
23 Correct 45 ms 2296 KB Output is correct
24 Correct 80 ms 2424 KB Output is correct
25 Correct 81 ms 2424 KB Output is correct
26 Correct 85 ms 2424 KB Output is correct
27 Correct 84 ms 2296 KB Output is correct
28 Correct 86 ms 2296 KB Output is correct
29 Correct 84 ms 2296 KB Output is correct
30 Correct 86 ms 2392 KB Output is correct
31 Correct 87 ms 2424 KB Output is correct
32 Correct 84 ms 2424 KB Output is correct
33 Correct 84 ms 2296 KB Output is correct
34 Correct 85 ms 2348 KB Output is correct
35 Correct 86 ms 2296 KB Output is correct
36 Correct 85 ms 2384 KB Output is correct
37 Correct 164 ms 2552 KB Output is correct
38 Correct 165 ms 2552 KB Output is correct
39 Correct 199 ms 2424 KB Output is correct
40 Correct 226 ms 2552 KB Output is correct
41 Correct 213 ms 2296 KB Output is correct
42 Correct 210 ms 2576 KB Output is correct
43 Correct 198 ms 2780 KB Output is correct
44 Correct 204 ms 2768 KB Output is correct
45 Correct 209 ms 2776 KB Output is correct
46 Correct 220 ms 2424 KB Output is correct
47 Correct 207 ms 2552 KB Output is correct
48 Correct 202 ms 2680 KB Output is correct
49 Correct 203 ms 2348 KB Output is correct
50 Correct 206 ms 2480 KB Output is correct
51 Correct 64 ms 2296 KB Output is correct
52 Correct 218 ms 2740 KB Output is correct
53 Correct 257 ms 2644 KB Output is correct
54 Correct 286 ms 2772 KB Output is correct
55 Incorrect 86 ms 2424 KB Output isn't correct
56 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 2296 KB Output is correct
2 Correct 9 ms 2296 KB Output is correct
3 Correct 5 ms 2296 KB Output is correct
4 Correct 7 ms 2296 KB Output is correct
5 Correct 14 ms 2296 KB Output is correct
6 Correct 10 ms 2296 KB Output is correct
7 Correct 9 ms 2300 KB Output is correct
8 Correct 14 ms 2296 KB Output is correct
9 Correct 12 ms 2296 KB Output is correct
10 Correct 28 ms 2344 KB Output is correct
11 Correct 30 ms 2296 KB Output is correct
12 Correct 77 ms 2296 KB Output is correct
13 Correct 26 ms 2300 KB Output is correct
14 Correct 27 ms 2296 KB Output is correct
15 Correct 27 ms 2296 KB Output is correct
16 Correct 29 ms 2296 KB Output is correct
17 Correct 19 ms 2296 KB Output is correct
18 Correct 22 ms 2296 KB Output is correct
19 Correct 26 ms 2424 KB Output is correct
20 Correct 29 ms 2296 KB Output is correct
21 Correct 59 ms 2384 KB Output is correct
22 Correct 64 ms 2384 KB Output is correct
23 Correct 45 ms 2296 KB Output is correct
24 Correct 80 ms 2424 KB Output is correct
25 Correct 81 ms 2424 KB Output is correct
26 Correct 85 ms 2424 KB Output is correct
27 Correct 84 ms 2296 KB Output is correct
28 Correct 86 ms 2296 KB Output is correct
29 Correct 84 ms 2296 KB Output is correct
30 Correct 86 ms 2392 KB Output is correct
31 Correct 87 ms 2424 KB Output is correct
32 Correct 84 ms 2424 KB Output is correct
33 Correct 84 ms 2296 KB Output is correct
34 Correct 85 ms 2348 KB Output is correct
35 Correct 86 ms 2296 KB Output is correct
36 Correct 85 ms 2384 KB Output is correct
37 Correct 164 ms 2552 KB Output is correct
38 Correct 165 ms 2552 KB Output is correct
39 Correct 199 ms 2424 KB Output is correct
40 Correct 226 ms 2552 KB Output is correct
41 Correct 213 ms 2296 KB Output is correct
42 Correct 210 ms 2576 KB Output is correct
43 Correct 198 ms 2780 KB Output is correct
44 Correct 204 ms 2768 KB Output is correct
45 Correct 209 ms 2776 KB Output is correct
46 Correct 220 ms 2424 KB Output is correct
47 Correct 207 ms 2552 KB Output is correct
48 Correct 202 ms 2680 KB Output is correct
49 Correct 203 ms 2348 KB Output is correct
50 Correct 206 ms 2480 KB Output is correct
51 Correct 64 ms 2296 KB Output is correct
52 Correct 218 ms 2740 KB Output is correct
53 Correct 257 ms 2644 KB Output is correct
54 Correct 286 ms 2772 KB Output is correct
55 Incorrect 86 ms 2424 KB Output isn't correct
56 Halted 0 ms 0 KB -