oj.uz

Submission #877019

# Submission time Handle Problem Language Result Execution time Memory
877019 2023-11-22T18:06:27 Z fanwen Joker (BOI20_joker) C++17
100 / 100
 200 ms 47544 KB 
#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define ll long long
#define file(name)                  \
    if(fopen(name".inp", "r"))      \
        freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout); \

const int MAX = 5e5 + 5;

struct Edge {
	int u, v;
	int get(int x) {
		return x ^ u ^ v;
	}
} e[MAX];

int n, m, q;
vector <int> adj[MAX];

namespace sub1 {
	bool check() {
		return max({n, m, q}) <= 5000;
	}

	int dd[MAX];

	bool solve(int l, int r) {

		fill(dd + 1, dd + n + 1, -1);
		bool ans = true;
		function <void(int, int)> 
		dfs = [&] (int u, int c) {
			dd[u] = c;
			for (int i : adj[u]) if(i < l || i > r) {
				int v = e[i].get(u);
				if(dd[v] == -1) {
					dfs(v, 1 ^ c);
				} else {
					if(c == dd[v]) {
						ans = false;
					}
				}
			}
		};
		for (int u = 1; u <= n; ++u) if(dd[u] == -1) {
			dfs(u, 0);
		}
		return ans;
	}

	void solve() {
		while(q--) {
			int l, r; cin >> l >> r;
			cout << (solve(l, r) ? "NO" : "YES") << '\n';
		}
		exit(0);
	}
}

struct Query {
	int l, r, id;
} queries[MAX];

int ans[MAX];

namespace sub2 {

	bool check() {
		for (int i = 1; i <= q; ++i) {
			if(queries[i].l != 1) {
				return false;
			}
		}
		return true;
	}

	int rank[MAX];
	pair <int, int> par[MAX];
	bool bipartite[MAX];

	void make_set(int v) {
		par[v] = make_pair(v, 0);
		rank[v] = 0;
		bipartite[v] = true;
	}

	pair <int, int> find_set(int u) {
		if(u != par[u].fi) {
			int parity = par[u].se;
			par[u] = find_set(par[u].fi);
			par[u].se ^= parity;
		}
		return par[u];
	}

	bool total = true;

	bool merge(int a, int b) {
		pair <int, int> pa = find_set(a); a = pa.fi; int x = pa.se;
		pair <int, int> pb = find_set(b); b = pb.fi; int y = pb.se;

		if(a == b) {
			if(x == y) {
				bipartite[a] = false;
				total = false;
			}
			return false;
		}

		if(rank[a] < rank[b]) swap(a, b);

		par[b] = make_pair(a, 1 ^ x ^ y);

		bipartite[a] &= bipartite[b];
		if(rank[a] == rank[b]) rank[a]++;
		return true;
	}

	void solve() {
		sort(queries + 1, queries + q + 1, [&] (const Query &a, const Query &b) {
			return a.r > b.r;
		});

		int j = m;
		for (int i = 1; i <= n; ++i) make_set(i);
		for (int i = 1; i <= q; ++i) {
			while(j >= 1 && j > queries[i].r) {
				merge(e[j].u, e[j].v);
				j--;
			}
			ans[queries[i].id] = total;
		}
		for (int i = 1; i <= q; ++i) {
			cout << (ans[i] ? "NO" : "YES") << '\n';
		}
		exit(0);
	}
}

namespace sub3 {

	bool check() {
		return true;
	}

	struct save {
		int u, v, ranku, rankv, res, cnt;
	};

	vector <save> tmp;
	int res = true;

	int lab[MAX], wei[MAX], dp[MAX];

	int find(int u) {
		return lab[u] < 0 ? u : find(lab[u]);
	}

	int get_w(int u) {
		return lab[u] < 0 ? 0 : wei[u] ^ get_w(lab[u]);
	}

	bool merge(int u, int v, int cnt) {
		if(!res) return false;
		int w = 1 ^ get_w(u) ^ get_w(v);
		u = find(u), v = find(v);
		assert(u != 0 && v != 0);
		if(lab[u] > lab[v]) swap(u, v);
		tmp.push_back({u, v, lab[u], lab[v], res, cnt});
		if(u == v) {
			if(w) res = false;
			return w == 0;
		}

		lab[u] += lab[v];
		lab[v] = u;
		wei[v] = w;
		return true;
	}

	void rollback(int l, int r) {
		if(l > r) return;
		while(!tmp.empty() && tmp.back().cnt >= l && tmp.back().cnt <= r) {
			auto [u, v, labu, labv, x, _] = tmp.back(); tmp.pop_back();
			lab[u] = labu, lab[v] = labv;
			wei[v] = 0;
			res = x;
		}
	}

	void dnc(int l, int r, int optL, int optR) {
		if(l > r) return;
		int mid = l + r >> 1;
		for (int i = l; i < mid; i++) {
			merge(e[i].u, e[i].v, i);
		}
		int optM = max(mid, optL) - 1;

		for (int i = optR; i >= max(mid, optL); --i) {
			if(!res) {
				optM = i;
				break;
			}
			merge(e[i].u, e[i].v, i);
		}

		dp[mid] = ++optM;

		optM = min(m, optM);

		rollback(optM, optR);

		merge(e[mid].u, e[mid].v, mid);

		dnc(mid + 1, r, optM, optR);

		rollback(l, mid);

		for (int i = optM + 1; i <= optR; ++i) {
			merge(e[i].u, e[i].v, i);
		}

		dnc(l, mid - 1, optL, optM);

		rollback(optM + 1, optR);
	}

	void solve() {

		memset(lab, -1, sizeof lab);
		dnc(1, m, 1, m);
		for (int i = 1; i <= q; ++i) {
			int l = queries[i].l, r = queries[i].r;
			cout << (dp[l] > r ? "YES" : "NO") << '\n';
		}
	}
}

void you_make_it(void) {
    cin >> n >> m >> q;
    for (int i = 1; i <= m; ++i) {
    	cin >> e[i].u >> e[i].v;
    	adj[e[i].u].push_back(i);
    	adj[e[i].v].push_back(i);
    }
    // if(sub1::check()) sub1::solve();
    for (int i = 1; i <= q; ++i) cin >> queries[i].l >> queries[i].r, queries[i].id = i;
    if(sub3::check()) sub3::solve();
}

signed main() {

#ifdef LOCAL
    freopen("TASK.inp", "r", stdin);
    freopen("TASK.out", "w", stdout);
#endif
    file("joker");
    auto start_time = chrono::steady_clock::now();

    cin.tie(0), cout.tie(0) -> sync_with_stdio(0);

    you_make_it();

    auto end_time = chrono::steady_clock::now();

    cerr << "\nExecution time : " << chrono::duration_cast <chrono::milliseconds> (end_time - start_time).count() << "[ms]" << endl;

    return (0 ^ 0);
}

// Dream it. Wish it. Do it.

Compilation message

Joker.cpp: In function 'void sub3::dnc(int, int, int, int)':
Joker.cpp:197:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  197 |   int mid = l + r >> 1;
      |             ~~^~~
Joker.cpp: In function 'int main()':
Joker.cpp:10:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout); \
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Joker.cpp:261:5: note: in expansion of macro 'file'
  261 |     file("joker");
      |     ^~~~
Joker.cpp:10:49: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         freopen(name".inp", "r", stdin), freopen(name".out", "w", stdout); \
      |                                          ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Joker.cpp:261:5: note: in expansion of macro 'file'
  261 |     file("joker");
      |     ^~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 4 ms 23028 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 5 ms 22976 KB Output is correct
10 Correct 4 ms 22876 KB Output is correct
11 Correct 5 ms 23020 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 5 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 23128 KB Output is correct
16 Correct 4 ms 22876 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 4 ms 22876 KB Output is correct
20 Correct 4 ms 22960 KB Output is correct
21 Correct 4 ms 22876 KB Output is correct
22 Correct 5 ms 22876 KB Output is correct
23 Correct 4 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 4 ms 22876 KB Output is correct
28 Correct 5 ms 22880 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 4 ms 23028 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 5 ms 22976 KB Output is correct
10 Correct 4 ms 22876 KB Output is correct
11 Correct 5 ms 23020 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 5 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 23128 KB Output is correct
16 Correct 4 ms 22876 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 4 ms 22876 KB Output is correct
20 Correct 4 ms 22960 KB Output is correct
21 Correct 4 ms 22876 KB Output is correct
22 Correct 5 ms 22876 KB Output is correct
23 Correct 4 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 4 ms 22876 KB Output is correct
28 Correct 5 ms 22880 KB Output is correct
29 Correct 5 ms 22996 KB Output is correct
30 Correct 6 ms 23132 KB Output is correct
31 Correct 6 ms 23040 KB Output is correct
32 Correct 6 ms 23116 KB Output is correct
33 Correct 5 ms 23132 KB Output is correct
34 Correct 6 ms 23192 KB Output is correct
35 Correct 6 ms 23136 KB Output is correct
36 Correct 6 ms 23136 KB Output is correct
37 Correct 7 ms 23136 KB Output is correct
38 Correct 6 ms 23040 KB Output is correct
39 Correct 5 ms 23144 KB Output is correct
40 Correct 5 ms 23196 KB Output is correct
41 Correct 5 ms 23144 KB Output is correct
42 Correct 5 ms 23144 KB Output is correct
43 Correct 6 ms 23056 KB Output is correct
44 Correct 5 ms 23144 KB Output is correct
45 Correct 5 ms 23144 KB Output is correct
46 Correct 5 ms 23144 KB Output is correct
47 Correct 5 ms 23144 KB Output is correct
48 Correct 5 ms 23128 KB Output is correct
49 Correct 5 ms 23128 KB Output is correct
50 Correct 6 ms 23132 KB Output is correct
51 Correct 5 ms 23128 KB Output is correct
52 Correct 5 ms 23132 KB Output is correct
53 Correct 5 ms 23132 KB Output is correct
54 Correct 6 ms 23132 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 119 ms 33516 KB Output is correct
4 Correct 196 ms 43460 KB Output is correct
5 Correct 125 ms 43652 KB Output is correct
6 Correct 115 ms 39600 KB Output is correct
7 Correct 112 ms 38604 KB Output is correct
8 Correct 130 ms 37816 KB Output is correct
9 Correct 134 ms 38604 KB Output is correct
10 Correct 174 ms 40524 KB Output is correct
11 Correct 136 ms 39368 KB Output is correct
12 Correct 147 ms 39932 KB Output is correct
13 Correct 145 ms 37880 KB Output is correct
14 Correct 133 ms 37836 KB Output is correct
15 Correct 166 ms 38956 KB Output is correct
16 Correct 176 ms 41072 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 4 ms 23028 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 5 ms 22976 KB Output is correct
10 Correct 4 ms 22876 KB Output is correct
11 Correct 5 ms 23020 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 5 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 23128 KB Output is correct
16 Correct 4 ms 22876 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 4 ms 22876 KB Output is correct
20 Correct 4 ms 22960 KB Output is correct
21 Correct 4 ms 22876 KB Output is correct
22 Correct 5 ms 22876 KB Output is correct
23 Correct 4 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 4 ms 22876 KB Output is correct
28 Correct 5 ms 22880 KB Output is correct
29 Correct 119 ms 33516 KB Output is correct
30 Correct 196 ms 43460 KB Output is correct
31 Correct 125 ms 43652 KB Output is correct
32 Correct 115 ms 39600 KB Output is correct
33 Correct 112 ms 38604 KB Output is correct
34 Correct 130 ms 37816 KB Output is correct
35 Correct 134 ms 38604 KB Output is correct
36 Correct 174 ms 40524 KB Output is correct
37 Correct 136 ms 39368 KB Output is correct
38 Correct 147 ms 39932 KB Output is correct
39 Correct 145 ms 37880 KB Output is correct
40 Correct 133 ms 37836 KB Output is correct
41 Correct 166 ms 38956 KB Output is correct
42 Correct 176 ms 41072 KB Output is correct
43 Correct 123 ms 39116 KB Output is correct
44 Correct 200 ms 43960 KB Output is correct
45 Correct 168 ms 44764 KB Output is correct
46 Correct 116 ms 40220 KB Output is correct
47 Correct 112 ms 40004 KB Output is correct
48 Correct 152 ms 38592 KB Output is correct
49 Correct 177 ms 41244 KB Output is correct
50 Correct 151 ms 38696 KB Output is correct
51 Correct 143 ms 40472 KB Output is correct
52 Correct 154 ms 41072 KB Output is correct
53 Correct 147 ms 37948 KB Output is correct
54 Correct 153 ms 39692 KB Output is correct
55 Correct 164 ms 40392 KB Output is correct
56 Correct 184 ms 40980 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 4 ms 23028 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 5 ms 22976 KB Output is correct
10 Correct 4 ms 22876 KB Output is correct
11 Correct 5 ms 23020 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 5 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 23128 KB Output is correct
16 Correct 4 ms 22876 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 4 ms 22876 KB Output is correct
20 Correct 4 ms 22960 KB Output is correct
21 Correct 4 ms 22876 KB Output is correct
22 Correct 5 ms 22876 KB Output is correct
23 Correct 4 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 4 ms 22876 KB Output is correct
28 Correct 5 ms 22880 KB Output is correct
29 Correct 5 ms 22996 KB Output is correct
30 Correct 6 ms 23132 KB Output is correct
31 Correct 6 ms 23040 KB Output is correct
32 Correct 6 ms 23116 KB Output is correct
33 Correct 5 ms 23132 KB Output is correct
34 Correct 6 ms 23192 KB Output is correct
35 Correct 6 ms 23136 KB Output is correct
36 Correct 6 ms 23136 KB Output is correct
37 Correct 7 ms 23136 KB Output is correct
38 Correct 6 ms 23040 KB Output is correct
39 Correct 5 ms 23144 KB Output is correct
40 Correct 5 ms 23196 KB Output is correct
41 Correct 5 ms 23144 KB Output is correct
42 Correct 5 ms 23144 KB Output is correct
43 Correct 6 ms 23056 KB Output is correct
44 Correct 5 ms 23144 KB Output is correct
45 Correct 5 ms 23144 KB Output is correct
46 Correct 5 ms 23144 KB Output is correct
47 Correct 5 ms 23144 KB Output is correct
48 Correct 5 ms 23128 KB Output is correct
49 Correct 5 ms 23128 KB Output is correct
50 Correct 6 ms 23132 KB Output is correct
51 Correct 5 ms 23128 KB Output is correct
52 Correct 5 ms 23132 KB Output is correct
53 Correct 5 ms 23132 KB Output is correct
54 Correct 6 ms 23132 KB Output is correct
55 Correct 97 ms 33640 KB Output is correct
56 Correct 169 ms 40048 KB Output is correct
57 Correct 93 ms 40328 KB Output is correct
58 Correct 89 ms 35016 KB Output is correct
59 Correct 121 ms 35788 KB Output is correct
60 Correct 146 ms 36804 KB Output is correct
61 Correct 123 ms 34760 KB Output is correct
62 Correct 122 ms 35948 KB Output is correct
63 Correct 104 ms 34244 KB Output is correct
64 Correct 130 ms 35784 KB Output is correct
65 Correct 145 ms 36808 KB Output is correct

Subtask #6
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22876 KB Output is correct
2 Correct 5 ms 22876 KB Output is correct
3 Correct 4 ms 22872 KB Output is correct
4 Correct 4 ms 23028 KB Output is correct
5 Correct 4 ms 22876 KB Output is correct
6 Correct 4 ms 22876 KB Output is correct
7 Correct 4 ms 22876 KB Output is correct
8 Correct 4 ms 22876 KB Output is correct
9 Correct 5 ms 22976 KB Output is correct
10 Correct 4 ms 22876 KB Output is correct
11 Correct 5 ms 23020 KB Output is correct
12 Correct 5 ms 22876 KB Output is correct
13 Correct 5 ms 22876 KB Output is correct
14 Correct 5 ms 22876 KB Output is correct
15 Correct 5 ms 23128 KB Output is correct
16 Correct 4 ms 22876 KB Output is correct
17 Correct 5 ms 22876 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 4 ms 22876 KB Output is correct
20 Correct 4 ms 22960 KB Output is correct
21 Correct 4 ms 22876 KB Output is correct
22 Correct 5 ms 22876 KB Output is correct
23 Correct 4 ms 22876 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22876 KB Output is correct
26 Correct 5 ms 22876 KB Output is correct
27 Correct 4 ms 22876 KB Output is correct
28 Correct 5 ms 22880 KB Output is correct
29 Correct 5 ms 22996 KB Output is correct
30 Correct 6 ms 23132 KB Output is correct
31 Correct 6 ms 23040 KB Output is correct
32 Correct 6 ms 23116 KB Output is correct
33 Correct 5 ms 23132 KB Output is correct
34 Correct 6 ms 23192 KB Output is correct
35 Correct 6 ms 23136 KB Output is correct
36 Correct 6 ms 23136 KB Output is correct
37 Correct 7 ms 23136 KB Output is correct
38 Correct 6 ms 23040 KB Output is correct
39 Correct 5 ms 23144 KB Output is correct
40 Correct 5 ms 23196 KB Output is correct
41 Correct 5 ms 23144 KB Output is correct
42 Correct 5 ms 23144 KB Output is correct
43 Correct 6 ms 23056 KB Output is correct
44 Correct 5 ms 23144 KB Output is correct
45 Correct 5 ms 23144 KB Output is correct
46 Correct 5 ms 23144 KB Output is correct
47 Correct 5 ms 23144 KB Output is correct
48 Correct 5 ms 23128 KB Output is correct
49 Correct 5 ms 23128 KB Output is correct
50 Correct 6 ms 23132 KB Output is correct
51 Correct 5 ms 23128 KB Output is correct
52 Correct 5 ms 23132 KB Output is correct
53 Correct 5 ms 23132 KB Output is correct
54 Correct 6 ms 23132 KB Output is correct
55 Correct 119 ms 33516 KB Output is correct
56 Correct 196 ms 43460 KB Output is correct
57 Correct 125 ms 43652 KB Output is correct
58 Correct 115 ms 39600 KB Output is correct
59 Correct 112 ms 38604 KB Output is correct
60 Correct 130 ms 37816 KB Output is correct
61 Correct 134 ms 38604 KB Output is correct
62 Correct 174 ms 40524 KB Output is correct
63 Correct 136 ms 39368 KB Output is correct
64 Correct 147 ms 39932 KB Output is correct
65 Correct 145 ms 37880 KB Output is correct
66 Correct 133 ms 37836 KB Output is correct
67 Correct 166 ms 38956 KB Output is correct
68 Correct 176 ms 41072 KB Output is correct
69 Correct 123 ms 39116 KB Output is correct
70 Correct 200 ms 43960 KB Output is correct
71 Correct 168 ms 44764 KB Output is correct
72 Correct 116 ms 40220 KB Output is correct
73 Correct 112 ms 40004 KB Output is correct
74 Correct 152 ms 38592 KB Output is correct
75 Correct 177 ms 41244 KB Output is correct
76 Correct 151 ms 38696 KB Output is correct
77 Correct 143 ms 40472 KB Output is correct
78 Correct 154 ms 41072 KB Output is correct
79 Correct 147 ms 37948 KB Output is correct
80 Correct 153 ms 39692 KB Output is correct
81 Correct 164 ms 40392 KB Output is correct
82 Correct 184 ms 40980 KB Output is correct
83 Correct 97 ms 33640 KB Output is correct
84 Correct 169 ms 40048 KB Output is correct
85 Correct 93 ms 40328 KB Output is correct
86 Correct 89 ms 35016 KB Output is correct
87 Correct 121 ms 35788 KB Output is correct
88 Correct 146 ms 36804 KB Output is correct
89 Correct 123 ms 34760 KB Output is correct
90 Correct 122 ms 35948 KB Output is correct
91 Correct 104 ms 34244 KB Output is correct
92 Correct 130 ms 35784 KB Output is correct
93 Correct 145 ms 36808 KB Output is correct
94 Correct 127 ms 38860 KB Output is correct
95 Correct 167 ms 46008 KB Output is correct
96 Correct 131 ms 45828 KB Output is correct
97 Correct 122 ms 40388 KB Output is correct
98 Correct 122 ms 39564 KB Output is correct
99 Correct 141 ms 39104 KB Output is correct
100 Correct 154 ms 41144 KB Output is correct
101 Correct 140 ms 39112 KB Output is correct
102 Correct 154 ms 40448 KB Output is correct
103 Correct 175 ms 41960 KB Output is correct
104 Correct 144 ms 38580 KB Output is correct
105 Correct 159 ms 39872 KB Output is correct
106 Correct 185 ms 41460 KB Output is correct
107 Correct 108 ms 47544 KB Output is correct
108 Correct 132 ms 39112 KB Output is correct
109 Correct 131 ms 39032 KB Output is correct
110 Correct 125 ms 38332 KB Output is correct
111 Correct 125 ms 38404 KB Output is correct
112 Correct 126 ms 38160 KB Output is correct
113 Correct 125 ms 39696 KB Output is correct
114 Correct 125 ms 38588 KB Output is correct
115 Correct 124 ms 38160 KB Output is correct
116 Correct 131 ms 39372 KB Output is correct