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답안 #173625

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
173625 2020-01-04T17:41:33 Z aleks5d Bootfall (IZhO17_bootfall) C++17
65 / 100
 1000 ms 6904 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(3e5);
    vector<int> canbe(3e5, 0);
    vector<ll> dp2(3e5);
    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

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 6136 KB Output is correct
2 Correct 22 ms 6264 KB Output is correct
3 Correct 9 ms 6264 KB Output is correct
4 Correct 17 ms 6368 KB Output is correct
5 Correct 35 ms 6200 KB Output is correct
6 Correct 26 ms 6264 KB Output is correct
7 Correct 21 ms 6136 KB Output is correct
8 Correct 35 ms 6264 KB Output is correct
9 Correct 31 ms 6392 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 6136 KB Output is correct
2 Correct 22 ms 6264 KB Output is correct
3 Correct 9 ms 6264 KB Output is correct
4 Correct 17 ms 6368 KB Output is correct
5 Correct 35 ms 6200 KB Output is correct
6 Correct 26 ms 6264 KB Output is correct
7 Correct 21 ms 6136 KB Output is correct
8 Correct 35 ms 6264 KB Output is correct
9 Correct 31 ms 6392 KB Output is correct
10 Correct 76 ms 6292 KB Output is correct
11 Correct 78 ms 6392 KB Output is correct
12 Correct 77 ms 6264 KB Output is correct
13 Correct 68 ms 6136 KB Output is correct
14 Correct 72 ms 6264 KB Output is correct
15 Correct 74 ms 6136 KB Output is correct
16 Correct 78 ms 6136 KB Output is correct
17 Correct 50 ms 6264 KB Output is correct
18 Correct 63 ms 6136 KB Output is correct
19 Correct 68 ms 6264 KB Output is correct
20 Correct 77 ms 6268 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 6136 KB Output is correct
2 Correct 22 ms 6264 KB Output is correct
3 Correct 9 ms 6264 KB Output is correct
4 Correct 17 ms 6368 KB Output is correct
5 Correct 35 ms 6200 KB Output is correct
6 Correct 26 ms 6264 KB Output is correct
7 Correct 21 ms 6136 KB Output is correct
8 Correct 35 ms 6264 KB Output is correct
9 Correct 31 ms 6392 KB Output is correct
10 Correct 76 ms 6292 KB Output is correct
11 Correct 78 ms 6392 KB Output is correct
12 Correct 77 ms 6264 KB Output is correct
13 Correct 68 ms 6136 KB Output is correct
14 Correct 72 ms 6264 KB Output is correct
15 Correct 74 ms 6136 KB Output is correct
16 Correct 78 ms 6136 KB Output is correct
17 Correct 50 ms 6264 KB Output is correct
18 Correct 63 ms 6136 KB Output is correct
19 Correct 68 ms 6264 KB Output is correct
20 Correct 77 ms 6268 KB Output is correct
21 Correct 155 ms 6264 KB Output is correct
22 Correct 178 ms 6256 KB Output is correct
23 Correct 122 ms 6260 KB Output is correct
24 Correct 223 ms 6264 KB Output is correct
25 Correct 225 ms 6264 KB Output is correct
26 Correct 236 ms 6264 KB Output is correct
27 Correct 234 ms 6264 KB Output is correct
28 Correct 238 ms 6392 KB Output is correct
29 Correct 235 ms 6264 KB Output is correct
30 Correct 241 ms 6264 KB Output is correct
31 Correct 238 ms 6268 KB Output is correct
32 Correct 238 ms 6392 KB Output is correct
33 Correct 233 ms 6364 KB Output is correct
34 Correct 239 ms 6136 KB Output is correct
35 Correct 237 ms 6136 KB Output is correct
36 Correct 236 ms 6264 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 6136 KB Output is correct
2 Correct 22 ms 6264 KB Output is correct
3 Correct 9 ms 6264 KB Output is correct
4 Correct 17 ms 6368 KB Output is correct
5 Correct 35 ms 6200 KB Output is correct
6 Correct 26 ms 6264 KB Output is correct
7 Correct 21 ms 6136 KB Output is correct
8 Correct 35 ms 6264 KB Output is correct
9 Correct 31 ms 6392 KB Output is correct
10 Correct 76 ms 6292 KB Output is correct
11 Correct 78 ms 6392 KB Output is correct
12 Correct 77 ms 6264 KB Output is correct
13 Correct 68 ms 6136 KB Output is correct
14 Correct 72 ms 6264 KB Output is correct
15 Correct 74 ms 6136 KB Output is correct
16 Correct 78 ms 6136 KB Output is correct
17 Correct 50 ms 6264 KB Output is correct
18 Correct 63 ms 6136 KB Output is correct
19 Correct 68 ms 6264 KB Output is correct
20 Correct 77 ms 6268 KB Output is correct
21 Correct 155 ms 6264 KB Output is correct
22 Correct 178 ms 6256 KB Output is correct
23 Correct 122 ms 6260 KB Output is correct
24 Correct 223 ms 6264 KB Output is correct
25 Correct 225 ms 6264 KB Output is correct
26 Correct 236 ms 6264 KB Output is correct
27 Correct 234 ms 6264 KB Output is correct
28 Correct 238 ms 6392 KB Output is correct
29 Correct 235 ms 6264 KB Output is correct
30 Correct 241 ms 6264 KB Output is correct
31 Correct 238 ms 6268 KB Output is correct
32 Correct 238 ms 6392 KB Output is correct
33 Correct 233 ms 6364 KB Output is correct
34 Correct 239 ms 6136 KB Output is correct
35 Correct 237 ms 6136 KB Output is correct
36 Correct 236 ms 6264 KB Output is correct
37 Correct 461 ms 6392 KB Output is correct
38 Correct 464 ms 6392 KB Output is correct
39 Correct 563 ms 6364 KB Output is correct
40 Correct 632 ms 6492 KB Output is correct
41 Correct 611 ms 6292 KB Output is correct
42 Correct 575 ms 6520 KB Output is correct
43 Correct 562 ms 6652 KB Output is correct
44 Correct 574 ms 6648 KB Output is correct
45 Correct 577 ms 6620 KB Output is correct
46 Correct 620 ms 6264 KB Output is correct
47 Correct 580 ms 6428 KB Output is correct
48 Correct 574 ms 6520 KB Output is correct
49 Correct 573 ms 6268 KB Output is correct
50 Correct 577 ms 6396 KB Output is correct
51 Correct 180 ms 6256 KB Output is correct
52 Correct 627 ms 6648 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 6136 KB Output is correct
2 Correct 22 ms 6264 KB Output is correct
3 Correct 9 ms 6264 KB Output is correct
4 Correct 17 ms 6368 KB Output is correct
5 Correct 35 ms 6200 KB Output is correct
6 Correct 26 ms 6264 KB Output is correct
7 Correct 21 ms 6136 KB Output is correct
8 Correct 35 ms 6264 KB Output is correct
9 Correct 31 ms 6392 KB Output is correct
10 Correct 76 ms 6292 KB Output is correct
11 Correct 78 ms 6392 KB Output is correct
12 Correct 77 ms 6264 KB Output is correct
13 Correct 68 ms 6136 KB Output is correct
14 Correct 72 ms 6264 KB Output is correct
15 Correct 74 ms 6136 KB Output is correct
16 Correct 78 ms 6136 KB Output is correct
17 Correct 50 ms 6264 KB Output is correct
18 Correct 63 ms 6136 KB Output is correct
19 Correct 68 ms 6264 KB Output is correct
20 Correct 77 ms 6268 KB Output is correct
21 Correct 155 ms 6264 KB Output is correct
22 Correct 178 ms 6256 KB Output is correct
23 Correct 122 ms 6260 KB Output is correct
24 Correct 223 ms 6264 KB Output is correct
25 Correct 225 ms 6264 KB Output is correct
26 Correct 236 ms 6264 KB Output is correct
27 Correct 234 ms 6264 KB Output is correct
28 Correct 238 ms 6392 KB Output is correct
29 Correct 235 ms 6264 KB Output is correct
30 Correct 241 ms 6264 KB Output is correct
31 Correct 238 ms 6268 KB Output is correct
32 Correct 238 ms 6392 KB Output is correct
33 Correct 233 ms 6364 KB Output is correct
34 Correct 239 ms 6136 KB Output is correct
35 Correct 237 ms 6136 KB Output is correct
36 Correct 236 ms 6264 KB Output is correct
37 Correct 461 ms 6392 KB Output is correct
38 Correct 464 ms 6392 KB Output is correct
39 Correct 563 ms 6364 KB Output is correct
40 Correct 632 ms 6492 KB Output is correct
41 Correct 611 ms 6292 KB Output is correct
42 Correct 575 ms 6520 KB Output is correct
43 Correct 562 ms 6652 KB Output is correct
44 Correct 574 ms 6648 KB Output is correct
45 Correct 577 ms 6620 KB Output is correct
46 Correct 620 ms 6264 KB Output is correct
47 Correct 580 ms 6428 KB Output is correct
48 Correct 574 ms 6520 KB Output is correct
49 Correct 573 ms 6268 KB Output is correct
50 Correct 577 ms 6396 KB Output is correct
51 Correct 180 ms 6256 KB Output is correct
52 Correct 627 ms 6648 KB Output is correct
53 Correct 690 ms 6508 KB Output is correct
54 Correct 804 ms 6644 KB Output is correct
55 Correct 796 ms 6776 KB Output is correct
56 Correct 697 ms 6644 KB Output is correct
57 Correct 796 ms 6900 KB Output is correct
58 Correct 804 ms 6644 KB Output is correct
59 Correct 802 ms 6644 KB Output is correct
60 Correct 239 ms 6268 KB Output is correct
61 Correct 805 ms 6776 KB Output is correct
62 Correct 740 ms 6876 KB Output is correct
63 Correct 743 ms 6780 KB Output is correct
64 Correct 716 ms 6904 KB Output is correct
65 Correct 723 ms 6364 KB Output is correct
66 Correct 707 ms 6392 KB Output is correct

Subtask #6
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 6136 KB Output is correct
2 Correct 22 ms 6264 KB Output is correct
3 Correct 9 ms 6264 KB Output is correct
4 Correct 17 ms 6368 KB Output is correct
5 Correct 35 ms 6200 KB Output is correct
6 Correct 26 ms 6264 KB Output is correct
7 Correct 21 ms 6136 KB Output is correct
8 Correct 35 ms 6264 KB Output is correct
9 Correct 31 ms 6392 KB Output is correct
10 Correct 76 ms 6292 KB Output is correct
11 Correct 78 ms 6392 KB Output is correct
12 Correct 77 ms 6264 KB Output is correct
13 Correct 68 ms 6136 KB Output is correct
14 Correct 72 ms 6264 KB Output is correct
15 Correct 74 ms 6136 KB Output is correct
16 Correct 78 ms 6136 KB Output is correct
17 Correct 50 ms 6264 KB Output is correct
18 Correct 63 ms 6136 KB Output is correct
19 Correct 68 ms 6264 KB Output is correct
20 Correct 77 ms 6268 KB Output is correct
21 Correct 155 ms 6264 KB Output is correct
22 Correct 178 ms 6256 KB Output is correct
23 Correct 122 ms 6260 KB Output is correct
24 Correct 223 ms 6264 KB Output is correct
25 Correct 225 ms 6264 KB Output is correct
26 Correct 236 ms 6264 KB Output is correct
27 Correct 234 ms 6264 KB Output is correct
28 Correct 238 ms 6392 KB Output is correct
29 Correct 235 ms 6264 KB Output is correct
30 Correct 241 ms 6264 KB Output is correct
31 Correct 238 ms 6268 KB Output is correct
32 Correct 238 ms 6392 KB Output is correct
33 Correct 233 ms 6364 KB Output is correct
34 Correct 239 ms 6136 KB Output is correct
35 Correct 237 ms 6136 KB Output is correct
36 Correct 236 ms 6264 KB Output is correct
37 Correct 461 ms 6392 KB Output is correct
38 Correct 464 ms 6392 KB Output is correct
39 Correct 563 ms 6364 KB Output is correct
40 Correct 632 ms 6492 KB Output is correct
41 Correct 611 ms 6292 KB Output is correct
42 Correct 575 ms 6520 KB Output is correct
43 Correct 562 ms 6652 KB Output is correct
44 Correct 574 ms 6648 KB Output is correct
45 Correct 577 ms 6620 KB Output is correct
46 Correct 620 ms 6264 KB Output is correct
47 Correct 580 ms 6428 KB Output is correct
48 Correct 574 ms 6520 KB Output is correct
49 Correct 573 ms 6268 KB Output is correct
50 Correct 577 ms 6396 KB Output is correct
51 Correct 180 ms 6256 KB Output is correct
52 Correct 627 ms 6648 KB Output is correct
53 Correct 690 ms 6508 KB Output is correct
54 Correct 804 ms 6644 KB Output is correct
55 Correct 796 ms 6776 KB Output is correct
56 Correct 697 ms 6644 KB Output is correct
57 Correct 796 ms 6900 KB Output is correct
58 Correct 804 ms 6644 KB Output is correct
59 Correct 802 ms 6644 KB Output is correct
60 Correct 239 ms 6268 KB Output is correct
61 Correct 805 ms 6776 KB Output is correct
62 Correct 740 ms 6876 KB Output is correct
63 Correct 743 ms 6780 KB Output is correct
64 Correct 716 ms 6904 KB Output is correct
65 Correct 723 ms 6364 KB Output is correct
66 Correct 707 ms 6392 KB Output is correct
67 Correct 919 ms 6768 KB Output is correct
68 Correct 346 ms 6264 KB Output is correct
69 Execution timed out 1073 ms 6264 KB Time limit exceeded
70 Halted 0 ms 0 KB -