oj.uz

Submission #161621

# Submission time Handle Problem Language Result Execution time Memory
161621 2019-11-03T10:10:31 Z srvlt Nice sequence (IZhO18_sequence) C++14
76 / 100
 2000 ms 45380 KB 
//#pragma GCC target ("avx2,sse2")
//#pragma GCC optimization ("Ofast")
//#pragma GCC optimization ("unroll-loops")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

#define ordered_set tree <int, null_type, less_equal <int>, rb_tree_tag, tree_order_statistics_node_update>
#define ll long long
#define db long double
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define fi first
#define se second
#define mp make_pair
#define up_b upper_bound
#define low_b lower_bound
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
//#define endl "\n"

#define left fsdkfsdfsdfd
#define sum dfsdfsdfsdf
#define assign sdkfskdfkk

//#define int long long

using namespace std;

void dout() {
    cerr << endl;
}
template <typename Head, typename... Tail>
void dout(Head H, Tail... T) {
    cerr << H << ' ';
    dout(T...);
}
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair <int, int> pii;

int bit(signed x) {
    return __builtin_popcount(x);
}
int bit(ll x) {
    return __builtin_popcountll(x);
}

const int N = 4e5 + 123;
int n, m, k, used[N], p[N], a[N];
bool cycle;
vector <int> topsort;

void cleanup() {
    cycle = false;
    topsort = {};
    for (int i = 0; i <= k; i++) {
        used[i] = p[i] = a[i] = 0;
    }
    k = 0;
}

void dfs(int v) {
    used[v] = 1;
    if (v - n >= 0) {
        if (used[v - n] == 1) {
            cycle = true;
            return;
        }
        if (used[v - n] == 0) {
            dfs(v - n);
        }
    }
    if (v + m <= k) {
        if (used[v + m] == 1) {
            cycle = true;
            return;
        }
        if (used[v + m] == 0) {
            dfs(v + m);
        }
    }
    used[v] = 2;
}

void get(int v) {
    used[v] = 1;
    if (v - n >= 0) {
        if (!used[v - n]) {
            get(v - n);
        }
    }
    if (v + m <= k) {
        if (!used[v + m]) {
            get(v + m);
        }
    }
    topsort.pb(v);
}

bool check() {
    if (k == 0) {
        return true;
    }
    cycle = false;
    for (int i = 0; i <= k; i++) {
        if (used[i] == 0) {
            dfs(i);
        }
    }
    for (int i = 0; i <= k; i++) {
        used[i] = 0;
    }
    return !cycle;
}

void construct() {
    for (int i = 0; i <= k; i++) {
        if (used[i] == 0) {
            get(i);
        }
    }
    reverse(topsort.begin(), topsort.end());
    for (int i = 0; i <= k; i++) {
        p[topsort[i]] = i;
    }
    bool zero = false;
    for (int i = 1; i <= k; i++) {
        a[i] = p[i] - p[i - 1];
        if (a[i] == 0) {
            zero = true;
        }
    }
    cout << k << endl;
    for (int i = 1; i <= k; i++) {
        if (zero) {
            a[i]++;
        }
        cout << a[i] << " ";
    }
    cout << endl;
}

void solve(int tc) {
    // check for (int i = 0; i < n; j++)
    cin >> n >> m;
    int l = -1, r = 2 * max(n, m) + 7;
    while (l < r - 1) {
        int mid = l + r >> 1;
        k = mid;
        if (check()) {
            l = mid;
        }   else {
            r = mid;
        }
    }
    k = l;
    construct();
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);
    int tc = 1;
    cin >> tc;
    for (int i = 0; i < tc; i++) {
        solve(i);
        cleanup();
    }
}

Compilation message

sequence.cpp: In function 'void solve(int)':
sequence.cpp:151:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
         int mid = l + r >> 1;
                   ~~^~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 376 KB Ok
8 Correct 2 ms 376 KB Ok
9 Correct 2 ms 376 KB Ok
10 Correct 2 ms 380 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 388 KB Ok

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 5 ms 504 KB Ok
7 Correct 19 ms 1272 KB Ok
8 Correct 10 ms 760 KB Ok
9 Correct 23 ms 1400 KB Ok
10 Correct 13 ms 888 KB Ok

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 420 KB Ok
5 Correct 2 ms 380 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 376 KB Ok
8 Correct 2 ms 376 KB Ok
9 Correct 2 ms 300 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 2 ms 376 KB Ok

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 210 ms 11348 KB Ok
7 Correct 175 ms 12016 KB Ok
8 Correct 361 ms 14204 KB Ok
9 Correct 287 ms 14060 KB Ok
10 Correct 169 ms 7988 KB Ok
11 Correct 302 ms 14596 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 376 KB Ok
8 Correct 2 ms 376 KB Ok
9 Correct 2 ms 376 KB Ok
10 Correct 2 ms 380 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 388 KB Ok
13 Correct 2 ms 376 KB Ok
14 Correct 2 ms 376 KB Ok
15 Correct 2 ms 376 KB Ok
16 Correct 2 ms 420 KB Ok
17 Correct 2 ms 380 KB Ok
18 Correct 2 ms 376 KB Ok
19 Correct 2 ms 376 KB Ok
20 Correct 2 ms 376 KB Ok
21 Correct 2 ms 300 KB Ok
22 Correct 2 ms 376 KB Ok
23 Correct 2 ms 376 KB Ok
24 Correct 5 ms 504 KB Ok
25 Correct 5 ms 504 KB Ok
26 Correct 5 ms 504 KB Ok
27 Correct 5 ms 504 KB Ok
28 Correct 4 ms 504 KB Ok
29 Correct 4 ms 504 KB Ok
30 Correct 4 ms 376 KB Ok
31 Correct 5 ms 504 KB Ok
32 Correct 5 ms 504 KB Ok
33 Correct 5 ms 504 KB Ok
34 Correct 10 ms 636 KB Ok
35 Correct 10 ms 636 KB Ok
36 Correct 10 ms 732 KB Ok
37 Correct 10 ms 760 KB Ok
38 Correct 10 ms 760 KB Ok
39 Correct 10 ms 760 KB Ok
40 Correct 10 ms 760 KB Ok
41 Correct 10 ms 760 KB Ok
42 Correct 10 ms 760 KB Ok
43 Correct 10 ms 636 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 376 KB Ok
8 Correct 2 ms 376 KB Ok
9 Correct 2 ms 376 KB Ok
10 Correct 2 ms 380 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 388 KB Ok
13 Correct 2 ms 376 KB Ok
14 Correct 2 ms 376 KB Ok
15 Correct 2 ms 376 KB Ok
16 Correct 2 ms 376 KB Ok
17 Correct 2 ms 376 KB Ok
18 Correct 5 ms 504 KB Ok
19 Correct 19 ms 1272 KB Ok
20 Correct 10 ms 760 KB Ok
21 Correct 23 ms 1400 KB Ok
22 Correct 13 ms 888 KB Ok
23 Correct 2 ms 376 KB Ok
24 Correct 2 ms 376 KB Ok
25 Correct 2 ms 376 KB Ok
26 Correct 2 ms 420 KB Ok
27 Correct 2 ms 380 KB Ok
28 Correct 2 ms 376 KB Ok
29 Correct 2 ms 376 KB Ok
30 Correct 2 ms 376 KB Ok
31 Correct 2 ms 300 KB Ok
32 Correct 2 ms 376 KB Ok
33 Correct 2 ms 376 KB Ok
34 Correct 5 ms 504 KB Ok
35 Correct 5 ms 504 KB Ok
36 Correct 5 ms 504 KB Ok
37 Correct 5 ms 504 KB Ok
38 Correct 4 ms 504 KB Ok
39 Correct 4 ms 504 KB Ok
40 Correct 4 ms 376 KB Ok
41 Correct 5 ms 504 KB Ok
42 Correct 5 ms 504 KB Ok
43 Correct 5 ms 504 KB Ok
44 Correct 10 ms 636 KB Ok
45 Correct 10 ms 636 KB Ok
46 Correct 10 ms 732 KB Ok
47 Correct 10 ms 760 KB Ok
48 Correct 10 ms 760 KB Ok
49 Correct 10 ms 760 KB Ok
50 Correct 10 ms 760 KB Ok
51 Correct 10 ms 760 KB Ok
52 Correct 10 ms 760 KB Ok
53 Correct 10 ms 636 KB Ok
54 Correct 131 ms 4084 KB Ok
55 Correct 166 ms 4532 KB Ok
56 Correct 146 ms 4468 KB Ok
57 Correct 106 ms 3740 KB Ok
58 Correct 142 ms 4500 KB Ok
59 Correct 129 ms 4212 KB Ok
60 Correct 115 ms 4076 KB Ok
61 Correct 106 ms 3956 KB Ok
62 Correct 169 ms 4724 KB Ok
63 Correct 121 ms 4140 KB Ok
64 Correct 154 ms 4468 KB Ok
65 Correct 136 ms 4344 KB Ok
66 Correct 119 ms 4084 KB Ok
67 Correct 123 ms 3820 KB Ok
68 Correct 133 ms 4336 KB Ok
69 Correct 372 ms 11532 KB Ok
70 Correct 340 ms 11924 KB Ok
71 Correct 325 ms 11376 KB Ok
72 Correct 354 ms 11512 KB Ok
73 Correct 347 ms 11844 KB Ok
74 Correct 331 ms 11252 KB Ok
75 Correct 347 ms 11508 KB Ok
76 Correct 354 ms 11552 KB Ok
77 Correct 327 ms 11396 KB Ok
78 Correct 353 ms 11544 KB Ok
79 Correct 337 ms 11760 KB Ok
80 Correct 328 ms 11380 KB Ok
81 Correct 332 ms 11892 KB Ok
82 Correct 322 ms 11508 KB Ok
83 Correct 336 ms 11496 KB Ok

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 2 ms 376 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 376 KB Ok
8 Correct 2 ms 376 KB Ok
9 Correct 2 ms 376 KB Ok
10 Correct 2 ms 380 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 388 KB Ok
13 Correct 2 ms 376 KB Ok
14 Correct 2 ms 376 KB Ok
15 Correct 2 ms 376 KB Ok
16 Correct 2 ms 376 KB Ok
17 Correct 2 ms 376 KB Ok
18 Correct 5 ms 504 KB Ok
19 Correct 19 ms 1272 KB Ok
20 Correct 10 ms 760 KB Ok
21 Correct 23 ms 1400 KB Ok
22 Correct 13 ms 888 KB Ok
23 Correct 2 ms 376 KB Ok
24 Correct 2 ms 376 KB Ok
25 Correct 2 ms 376 KB Ok
26 Correct 2 ms 420 KB Ok
27 Correct 2 ms 380 KB Ok
28 Correct 2 ms 376 KB Ok
29 Correct 2 ms 376 KB Ok
30 Correct 2 ms 376 KB Ok
31 Correct 2 ms 300 KB Ok
32 Correct 2 ms 376 KB Ok
33 Correct 2 ms 376 KB Ok
34 Correct 2 ms 376 KB Ok
35 Correct 2 ms 376 KB Ok
36 Correct 2 ms 376 KB Ok
37 Correct 2 ms 376 KB Ok
38 Correct 2 ms 376 KB Ok
39 Correct 210 ms 11348 KB Ok
40 Correct 175 ms 12016 KB Ok
41 Correct 361 ms 14204 KB Ok
42 Correct 287 ms 14060 KB Ok
43 Correct 169 ms 7988 KB Ok
44 Correct 302 ms 14596 KB Ok
45 Correct 5 ms 504 KB Ok
46 Correct 5 ms 504 KB Ok
47 Correct 5 ms 504 KB Ok
48 Correct 5 ms 504 KB Ok
49 Correct 4 ms 504 KB Ok
50 Correct 4 ms 504 KB Ok
51 Correct 4 ms 376 KB Ok
52 Correct 5 ms 504 KB Ok
53 Correct 5 ms 504 KB Ok
54 Correct 5 ms 504 KB Ok
55 Correct 10 ms 636 KB Ok
56 Correct 10 ms 636 KB Ok
57 Correct 10 ms 732 KB Ok
58 Correct 10 ms 760 KB Ok
59 Correct 10 ms 760 KB Ok
60 Correct 10 ms 760 KB Ok
61 Correct 10 ms 760 KB Ok
62 Correct 10 ms 760 KB Ok
63 Correct 10 ms 760 KB Ok
64 Correct 10 ms 636 KB Ok
65 Correct 131 ms 4084 KB Ok
66 Correct 166 ms 4532 KB Ok
67 Correct 146 ms 4468 KB Ok
68 Correct 106 ms 3740 KB Ok
69 Correct 142 ms 4500 KB Ok
70 Correct 129 ms 4212 KB Ok
71 Correct 115 ms 4076 KB Ok
72 Correct 106 ms 3956 KB Ok
73 Correct 169 ms 4724 KB Ok
74 Correct 121 ms 4140 KB Ok
75 Correct 154 ms 4468 KB Ok
76 Correct 136 ms 4344 KB Ok
77 Correct 119 ms 4084 KB Ok
78 Correct 123 ms 3820 KB Ok
79 Correct 133 ms 4336 KB Ok
80 Correct 372 ms 11532 KB Ok
81 Correct 340 ms 11924 KB Ok
82 Correct 325 ms 11376 KB Ok
83 Correct 354 ms 11512 KB Ok
84 Correct 347 ms 11844 KB Ok
85 Correct 331 ms 11252 KB Ok
86 Correct 347 ms 11508 KB Ok
87 Correct 354 ms 11552 KB Ok
88 Correct 327 ms 11396 KB Ok
89 Correct 353 ms 11544 KB Ok
90 Correct 337 ms 11760 KB Ok
91 Correct 328 ms 11380 KB Ok
92 Correct 332 ms 11892 KB Ok
93 Correct 322 ms 11508 KB Ok
94 Correct 336 ms 11496 KB Ok
95 Correct 338 ms 10148 KB Ok
96 Correct 524 ms 14544 KB Ok
97 Correct 627 ms 12776 KB Ok
98 Correct 364 ms 11524 KB Ok
99 Correct 423 ms 11636 KB Ok
100 Correct 475 ms 12620 KB Ok
101 Correct 456 ms 12712 KB Ok
102 Correct 458 ms 12492 KB Ok
103 Correct 452 ms 13260 KB Ok
104 Correct 520 ms 14312 KB Ok
105 Correct 492 ms 14444 KB Ok
106 Correct 425 ms 12848 KB Ok
107 Correct 482 ms 13552 KB Ok
108 Correct 554 ms 14952 KB Ok
109 Correct 476 ms 14392 KB Ok
110 Correct 1802 ms 45380 KB Ok
111 Execution timed out 2052 ms 41564 KB Time limit exceeded
112 Halted 0 ms 0 KB -