답안 #405192

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
405192	2021-05-15T20:41:57 Z	Falcon	Bootfall (IZhO17_bootfall)	C++17	100 / 100	746 ms	3908 KB

bootfall

#include <bits/stdc++.h>

#ifdef DEBUG
#include "debug.hpp"
#endif

using namespace std;

#define all(c)              (c).begin(), (c).end()
#define rall(c)             (c).rbegin(), (c).rend()
#define traverse(c, it)     for(auto it = (c).begin(); it != (c).end(); ++it)
#define rep(i, N)           for(int i = 0; i < (N); ++i)
#define rrep(i, N)          for(int i = (N) - 1; i >= 0; --i)
#define rep1(i, N)          for(int i = 1; i <= (N); ++i)
#define rep2(i, s, e)       for(int i = (s); i <= (e); ++i)

#ifdef DEBUG
#define debug(x...)         { \
                            ++dbg::depth; \
                            string dbg_vals = dbg::to_string(x); \
                            --dbg::depth; \
                            dbg::fprint(__func__, __LINE__, #x, dbg_vals); \
                            }

#define light_debug(x)      { \
                            dbg::light = true; \
                            dbg::dout << __func__ << ":" << __LINE__; \
                            dbg::dout << "  " << #x << " = " << x << endl; \
                            dbg::light = false; \
                            }

#else
#define debug(x...)         42
#define light_debug(x)      42
#endif


using ll = long long;

template<typename T>
inline T& ckmin(T& a, T b) { return a = a > b ? b : a; }

template<typename T>
inline T& ckmax(T& a, T b) { return a = a < b ? b : a; }


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n; cin >> n;
    vector<int> a(n); rep(i, n) cin >> a[i];
    int s{accumulate(all(a), 0)};

    vector<long long> ways(s + 1);
    ways[0] = 1; 

    auto add = [&](int x) {
        rrep(i, int(ways.size()))
            if(i - x >= 0) ways[i] += ways[i - x];
    };

    auto remove = [&](int x) {
        rep(i, int(ways.size()))
            if(i - x >= 0) ways[i] -= ways[i - x];
    };

    rep(i, n) add(a[i]);
    debug(ways);

    if(s % 2 != 0 || ways[s / 2] == 0)
        return cout << 0 << '\n', 0;

    vector<int> c(s + 1);
    vector<bool> b(s + 1);
    rep(i, n) {
        remove(a[i]);
        rep(x, int(ways.size())) {
            if(ways[x] == 0) continue;
            b[abs(s - a[i] - 2 * x)] = true;
        }

        rep(x, int(c.size()))
            if(b[x]) ++c[x], b[x] = false; 
        debug(i, ways);
        add(a[i]);
    }

    cout <<  count_if(all(c), [&](int x) { return x == n; }) << '\n';

    rep(i, int(c.size())) if(c[i] == n) cout << i << ' ';
    cout << '\n';
    
    
    #ifdef DEBUG
    dbg::dout << "\nExecution time: "
              << clock() * 1000 / CLOCKS_PER_SEC 
              << "ms" << endl;
    #endif
    return 0;
}

Compilation message

bootfall.cpp: In function 'int main()':
bootfall.cpp:33:29: warning: statement has no effect [-Wunused-value]
   33 | #define debug(x...)         42
      |                             ^~
bootfall.cpp:69:5: note: in expansion of macro 'debug'
   69 |     debug(ways);
      |     ^~~~~
bootfall.cpp:33:29: warning: statement has no effect [-Wunused-value]
   33 | #define debug(x...)         42
      |                             ^~
bootfall.cpp:85:9: note: in expansion of macro 'debug'
   85 |         debug(i, ways);
      |         ^~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	312 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	312 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	2 ms	332 KB	Output is correct
22	Correct	3 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	4 ms	332 KB	Output is correct
25	Correct	6 ms	440 KB	Output is correct
26	Correct	7 ms	436 KB	Output is correct
27	Correct	5 ms	332 KB	Output is correct
28	Correct	6 ms	332 KB	Output is correct
29	Correct	6 ms	392 KB	Output is correct
30	Correct	4 ms	332 KB	Output is correct
31	Correct	6 ms	332 KB	Output is correct
32	Correct	4 ms	312 KB	Output is correct
33	Correct	5 ms	428 KB	Output is correct
34	Correct	6 ms	332 KB	Output is correct
35	Correct	6 ms	332 KB	Output is correct
36	Correct	4 ms	332 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	312 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	2 ms	332 KB	Output is correct
22	Correct	3 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	4 ms	332 KB	Output is correct
25	Correct	6 ms	440 KB	Output is correct
26	Correct	7 ms	436 KB	Output is correct
27	Correct	5 ms	332 KB	Output is correct
28	Correct	6 ms	332 KB	Output is correct
29	Correct	6 ms	392 KB	Output is correct
30	Correct	4 ms	332 KB	Output is correct
31	Correct	6 ms	332 KB	Output is correct
32	Correct	4 ms	312 KB	Output is correct
33	Correct	5 ms	428 KB	Output is correct
34	Correct	6 ms	332 KB	Output is correct
35	Correct	6 ms	332 KB	Output is correct
36	Correct	4 ms	332 KB	Output is correct
37	Correct	27 ms	552 KB	Output is correct
38	Correct	30 ms	548 KB	Output is correct
39	Correct	79 ms	1040 KB	Output is correct
40	Correct	55 ms	708 KB	Output is correct
41	Correct	85 ms	1100 KB	Output is correct
42	Correct	48 ms	660 KB	Output is correct
43	Correct	82 ms	1096 KB	Output is correct
44	Correct	89 ms	1140 KB	Output is correct
45	Correct	89 ms	1092 KB	Output is correct
46	Correct	40 ms	588 KB	Output is correct
47	Correct	53 ms	704 KB	Output is correct
48	Correct	96 ms	1036 KB	Output is correct
49	Correct	83 ms	1056 KB	Output is correct
50	Correct	51 ms	688 KB	Output is correct
51	Correct	8 ms	460 KB	Output is correct
52	Correct	111 ms	1268 KB	Output is correct

Subtask #5
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	312 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	2 ms	332 KB	Output is correct
22	Correct	3 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	4 ms	332 KB	Output is correct
25	Correct	6 ms	440 KB	Output is correct
26	Correct	7 ms	436 KB	Output is correct
27	Correct	5 ms	332 KB	Output is correct
28	Correct	6 ms	332 KB	Output is correct
29	Correct	6 ms	392 KB	Output is correct
30	Correct	4 ms	332 KB	Output is correct
31	Correct	6 ms	332 KB	Output is correct
32	Correct	4 ms	312 KB	Output is correct
33	Correct	5 ms	428 KB	Output is correct
34	Correct	6 ms	332 KB	Output is correct
35	Correct	6 ms	332 KB	Output is correct
36	Correct	4 ms	332 KB	Output is correct
37	Correct	27 ms	552 KB	Output is correct
38	Correct	30 ms	548 KB	Output is correct
39	Correct	79 ms	1040 KB	Output is correct
40	Correct	55 ms	708 KB	Output is correct
41	Correct	85 ms	1100 KB	Output is correct
42	Correct	48 ms	660 KB	Output is correct
43	Correct	82 ms	1096 KB	Output is correct
44	Correct	89 ms	1140 KB	Output is correct
45	Correct	89 ms	1092 KB	Output is correct
46	Correct	40 ms	588 KB	Output is correct
47	Correct	53 ms	704 KB	Output is correct
48	Correct	96 ms	1036 KB	Output is correct
49	Correct	83 ms	1056 KB	Output is correct
50	Correct	51 ms	688 KB	Output is correct
51	Correct	8 ms	460 KB	Output is correct
52	Correct	111 ms	1268 KB	Output is correct
53	Correct	84 ms	964 KB	Output is correct
54	Correct	117 ms	1092 KB	Output is correct
55	Correct	248 ms	1880 KB	Output is correct
56	Correct	120 ms	1100 KB	Output is correct
57	Correct	244 ms	1956 KB	Output is correct
58	Correct	140 ms	1160 KB	Output is correct
59	Correct	173 ms	1340 KB	Output is correct
60	Correct	16 ms	716 KB	Output is correct
61	Correct	198 ms	1452 KB	Output is correct
62	Correct	195 ms	1704 KB	Output is correct
63	Correct	218 ms	1732 KB	Output is correct
64	Correct	195 ms	1896 KB	Output is correct
65	Correct	76 ms	964 KB	Output is correct
66	Correct	77 ms	940 KB	Output is correct

Subtask #6
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	312 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	204 KB	Output is correct
17	Correct	1 ms	204 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	2 ms	332 KB	Output is correct
22	Correct	3 ms	332 KB	Output is correct
23	Correct	2 ms	332 KB	Output is correct
24	Correct	4 ms	332 KB	Output is correct
25	Correct	6 ms	440 KB	Output is correct
26	Correct	7 ms	436 KB	Output is correct
27	Correct	5 ms	332 KB	Output is correct
28	Correct	6 ms	332 KB	Output is correct
29	Correct	6 ms	392 KB	Output is correct
30	Correct	4 ms	332 KB	Output is correct
31	Correct	6 ms	332 KB	Output is correct
32	Correct	4 ms	312 KB	Output is correct
33	Correct	5 ms	428 KB	Output is correct
34	Correct	6 ms	332 KB	Output is correct
35	Correct	6 ms	332 KB	Output is correct
36	Correct	4 ms	332 KB	Output is correct
37	Correct	27 ms	552 KB	Output is correct
38	Correct	30 ms	548 KB	Output is correct
39	Correct	79 ms	1040 KB	Output is correct
40	Correct	55 ms	708 KB	Output is correct
41	Correct	85 ms	1100 KB	Output is correct
42	Correct	48 ms	660 KB	Output is correct
43	Correct	82 ms	1096 KB	Output is correct
44	Correct	89 ms	1140 KB	Output is correct
45	Correct	89 ms	1092 KB	Output is correct
46	Correct	40 ms	588 KB	Output is correct
47	Correct	53 ms	704 KB	Output is correct
48	Correct	96 ms	1036 KB	Output is correct
49	Correct	83 ms	1056 KB	Output is correct
50	Correct	51 ms	688 KB	Output is correct
51	Correct	8 ms	460 KB	Output is correct
52	Correct	111 ms	1268 KB	Output is correct
53	Correct	84 ms	964 KB	Output is correct
54	Correct	117 ms	1092 KB	Output is correct
55	Correct	248 ms	1880 KB	Output is correct
56	Correct	120 ms	1100 KB	Output is correct
57	Correct	244 ms	1956 KB	Output is correct
58	Correct	140 ms	1160 KB	Output is correct
59	Correct	173 ms	1340 KB	Output is correct
60	Correct	16 ms	716 KB	Output is correct
61	Correct	198 ms	1452 KB	Output is correct
62	Correct	195 ms	1704 KB	Output is correct
63	Correct	218 ms	1732 KB	Output is correct
64	Correct	195 ms	1896 KB	Output is correct
65	Correct	76 ms	964 KB	Output is correct
66	Correct	77 ms	940 KB	Output is correct
67	Correct	196 ms	1456 KB	Output is correct
68	Correct	46 ms	1212 KB	Output is correct
69	Correct	628 ms	3372 KB	Output is correct
70	Correct	389 ms	2216 KB	Output is correct
71	Correct	389 ms	2164 KB	Output is correct
72	Correct	371 ms	1800 KB	Output is correct
73	Correct	374 ms	1732 KB	Output is correct
74	Correct	683 ms	3604 KB	Output is correct
75	Correct	526 ms	2892 KB	Output is correct
76	Correct	705 ms	3908 KB	Output is correct
77	Correct	746 ms	3772 KB	Output is correct

답안 #405192

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 7.0 / 7.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 21.0 / 21.0

Subtask #6 35.0 / 35.0

Subtask #1
6.0 / 6.0

Subtask #2
7.0 / 7.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
21.0 / 21.0

Subtask #6
35.0 / 35.0