oj.uz

Submission #166810

# Submission time Handle Problem Language Result Execution time Memory
166810 2019-12-04T07:21:44 Z Yaroslaff Nice sequence (IZhO18_sequence) C++14
100 / 100
 1902 ms 47796 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 = min(n, m) - 2, r = 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:2:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("Ofast")
 
sequence.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("unroll-loops")
 
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 504 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 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 376 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 376 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 380 KB Ok
6 Correct 5 ms 504 KB Ok
7 Correct 19 ms 1272 KB Ok
8 Correct 9 ms 760 KB Ok
9 Correct 22 ms 1400 KB Ok
10 Correct 12 ms 932 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 292 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 380 KB Ok
8 Correct 2 ms 424 KB Ok
9 Correct 2 ms 376 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 2 ms 380 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 219 ms 11408 KB Ok
7 Correct 166 ms 11884 KB Ok
8 Correct 351 ms 14184 KB Ok
9 Correct 289 ms 14168 KB Ok
10 Correct 169 ms 7920 KB Ok
11 Correct 285 ms 14824 KB Ok

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 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 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 376 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 376 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 292 KB Ok
17 Correct 2 ms 376 KB Ok
18 Correct 2 ms 376 KB Ok
19 Correct 2 ms 380 KB Ok
20 Correct 2 ms 424 KB Ok
21 Correct 2 ms 376 KB Ok
22 Correct 2 ms 376 KB Ok
23 Correct 2 ms 380 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 5 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 9 ms 632 KB Ok
35 Correct 9 ms 760 KB Ok
36 Correct 9 ms 760 KB Ok
37 Correct 10 ms 760 KB Ok
38 Correct 9 ms 632 KB Ok
39 Correct 9 ms 732 KB Ok
40 Correct 10 ms 548 KB Ok
41 Correct 9 ms 632 KB Ok
42 Correct 10 ms 760 KB Ok
43 Correct 9 ms 760 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 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 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 376 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 376 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 380 KB Ok
18 Correct 5 ms 504 KB Ok
19 Correct 19 ms 1272 KB Ok
20 Correct 9 ms 760 KB Ok
21 Correct 22 ms 1400 KB Ok
22 Correct 12 ms 932 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 292 KB Ok
27 Correct 2 ms 376 KB Ok
28 Correct 2 ms 376 KB Ok
29 Correct 2 ms 380 KB Ok
30 Correct 2 ms 424 KB Ok
31 Correct 2 ms 376 KB Ok
32 Correct 2 ms 376 KB Ok
33 Correct 2 ms 380 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 5 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 9 ms 632 KB Ok
45 Correct 9 ms 760 KB Ok
46 Correct 9 ms 760 KB Ok
47 Correct 10 ms 760 KB Ok
48 Correct 9 ms 632 KB Ok
49 Correct 9 ms 732 KB Ok
50 Correct 10 ms 548 KB Ok
51 Correct 9 ms 632 KB Ok
52 Correct 10 ms 760 KB Ok
53 Correct 9 ms 760 KB Ok
54 Correct 132 ms 4116 KB Ok
55 Correct 145 ms 4596 KB Ok
56 Correct 154 ms 4492 KB Ok
57 Correct 108 ms 3572 KB Ok
58 Correct 142 ms 4420 KB Ok
59 Correct 134 ms 4212 KB Ok
60 Correct 114 ms 3884 KB Ok
61 Correct 111 ms 3828 KB Ok
62 Correct 159 ms 4724 KB Ok
63 Correct 122 ms 4056 KB Ok
64 Correct 152 ms 4472 KB Ok
65 Correct 138 ms 4336 KB Ok
66 Correct 122 ms 4080 KB Ok
67 Correct 109 ms 3700 KB Ok
68 Correct 132 ms 4208 KB Ok
69 Correct 311 ms 11332 KB Ok
70 Correct 324 ms 11848 KB Ok
71 Correct 298 ms 11348 KB Ok
72 Correct 304 ms 11252 KB Ok
73 Correct 302 ms 11504 KB Ok
74 Correct 296 ms 11252 KB Ok
75 Correct 297 ms 11272 KB Ok
76 Correct 329 ms 11376 KB Ok
77 Correct 292 ms 11268 KB Ok
78 Correct 326 ms 11144 KB Ok
79 Correct 304 ms 11632 KB Ok
80 Correct 303 ms 11376 KB Ok
81 Correct 297 ms 11756 KB Ok
82 Correct 310 ms 11324 KB Ok
83 Correct 300 ms 11484 KB Ok

Subtask #7
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 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 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 376 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 376 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 380 KB Ok
18 Correct 5 ms 504 KB Ok
19 Correct 19 ms 1272 KB Ok
20 Correct 9 ms 760 KB Ok
21 Correct 22 ms 1400 KB Ok
22 Correct 12 ms 932 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 292 KB Ok
27 Correct 2 ms 376 KB Ok
28 Correct 2 ms 376 KB Ok
29 Correct 2 ms 380 KB Ok
30 Correct 2 ms 424 KB Ok
31 Correct 2 ms 376 KB Ok
32 Correct 2 ms 376 KB Ok
33 Correct 2 ms 380 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 219 ms 11408 KB Ok
40 Correct 166 ms 11884 KB Ok
41 Correct 351 ms 14184 KB Ok
42 Correct 289 ms 14168 KB Ok
43 Correct 169 ms 7920 KB Ok
44 Correct 285 ms 14824 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 5 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 9 ms 632 KB Ok
56 Correct 9 ms 760 KB Ok
57 Correct 9 ms 760 KB Ok
58 Correct 10 ms 760 KB Ok
59 Correct 9 ms 632 KB Ok
60 Correct 9 ms 732 KB Ok
61 Correct 10 ms 548 KB Ok
62 Correct 9 ms 632 KB Ok
63 Correct 10 ms 760 KB Ok
64 Correct 9 ms 760 KB Ok
65 Correct 132 ms 4116 KB Ok
66 Correct 145 ms 4596 KB Ok
67 Correct 154 ms 4492 KB Ok
68 Correct 108 ms 3572 KB Ok
69 Correct 142 ms 4420 KB Ok
70 Correct 134 ms 4212 KB Ok
71 Correct 114 ms 3884 KB Ok
72 Correct 111 ms 3828 KB Ok
73 Correct 159 ms 4724 KB Ok
74 Correct 122 ms 4056 KB Ok
75 Correct 152 ms 4472 KB Ok
76 Correct 138 ms 4336 KB Ok
77 Correct 122 ms 4080 KB Ok
78 Correct 109 ms 3700 KB Ok
79 Correct 132 ms 4208 KB Ok
80 Correct 311 ms 11332 KB Ok
81 Correct 324 ms 11848 KB Ok
82 Correct 298 ms 11348 KB Ok
83 Correct 304 ms 11252 KB Ok
84 Correct 302 ms 11504 KB Ok
85 Correct 296 ms 11252 KB Ok
86 Correct 297 ms 11272 KB Ok
87 Correct 329 ms 11376 KB Ok
88 Correct 292 ms 11268 KB Ok
89 Correct 326 ms 11144 KB Ok
90 Correct 304 ms 11632 KB Ok
91 Correct 303 ms 11376 KB Ok
92 Correct 297 ms 11756 KB Ok
93 Correct 310 ms 11324 KB Ok
94 Correct 300 ms 11484 KB Ok
95 Correct 344 ms 10004 KB Ok
96 Correct 510 ms 14548 KB Ok
97 Correct 597 ms 12824 KB Ok
98 Correct 367 ms 11388 KB Ok
99 Correct 418 ms 11592 KB Ok
100 Correct 460 ms 12444 KB Ok
101 Correct 439 ms 12712 KB Ok
102 Correct 436 ms 12340 KB Ok
103 Correct 448 ms 13024 KB Ok
104 Correct 504 ms 14160 KB Ok
105 Correct 505 ms 14268 KB Ok
106 Correct 468 ms 12860 KB Ok
107 Correct 481 ms 13368 KB Ok
108 Correct 524 ms 14792 KB Ok
109 Correct 511 ms 14032 KB Ok
110 Correct 1498 ms 44668 KB Ok
111 Correct 1902 ms 46712 KB Ok
112 Correct 1518 ms 47332 KB Ok
113 Correct 1704 ms 45916 KB Ok
114 Correct 1557 ms 47460 KB Ok
115 Correct 1665 ms 46568 KB Ok
116 Correct 1686 ms 47732 KB Ok
117 Correct 1740 ms 45928 KB Ok
118 Correct 1518 ms 47156 KB Ok
119 Correct 1821 ms 45832 KB Ok
120 Correct 1658 ms 46604 KB Ok
121 Correct 1556 ms 46104 KB Ok
122 Correct 1661 ms 46860 KB Ok
123 Correct 1801 ms 46704 KB Ok
124 Correct 1485 ms 47796 KB Ok
125 Correct 1313 ms 29424 KB Ok