結果
問題 | No.1244 Black Segment |
ユーザー | heno239 |
提出日時 | 2020-10-03 19:45:06 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 89 ms / 2,000 ms |
コード長 | 3,646 bytes |
コンパイル時間 | 1,463 ms |
コンパイル使用メモリ | 120,028 KB |
実行使用メモリ | 82,504 KB |
最終ジャッジ日時 | 2024-07-18 04:59:39 |
合計ジャッジ時間 | 5,143 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 39 ms
75,136 KB |
testcase_01 | AC | 41 ms
75,080 KB |
testcase_02 | AC | 41 ms
75,008 KB |
testcase_03 | AC | 41 ms
75,136 KB |
testcase_04 | AC | 40 ms
75,008 KB |
testcase_05 | AC | 41 ms
75,136 KB |
testcase_06 | AC | 42 ms
75,136 KB |
testcase_07 | AC | 42 ms
75,076 KB |
testcase_08 | AC | 42 ms
75,136 KB |
testcase_09 | AC | 42 ms
75,136 KB |
testcase_10 | AC | 41 ms
75,008 KB |
testcase_11 | AC | 40 ms
75,136 KB |
testcase_12 | AC | 42 ms
75,008 KB |
testcase_13 | AC | 42 ms
75,328 KB |
testcase_14 | AC | 61 ms
77,184 KB |
testcase_15 | AC | 41 ms
75,204 KB |
testcase_16 | AC | 61 ms
77,252 KB |
testcase_17 | AC | 42 ms
75,464 KB |
testcase_18 | AC | 63 ms
78,208 KB |
testcase_19 | AC | 84 ms
79,048 KB |
testcase_20 | AC | 82 ms
79,428 KB |
testcase_21 | AC | 73 ms
79,428 KB |
testcase_22 | AC | 77 ms
79,360 KB |
testcase_23 | AC | 79 ms
79,488 KB |
testcase_24 | AC | 77 ms
80,000 KB |
testcase_25 | AC | 77 ms
79,936 KB |
testcase_26 | AC | 76 ms
79,744 KB |
testcase_27 | AC | 89 ms
82,372 KB |
testcase_28 | AC | 79 ms
80,256 KB |
testcase_29 | AC | 77 ms
80,064 KB |
testcase_30 | AC | 80 ms
80,000 KB |
testcase_31 | AC | 78 ms
79,684 KB |
testcase_32 | AC | 79 ms
79,872 KB |
testcase_33 | AC | 79 ms
79,688 KB |
testcase_34 | AC | 83 ms
79,744 KB |
testcase_35 | AC | 83 ms
82,504 KB |
testcase_36 | AC | 84 ms
82,432 KB |
testcase_37 | AC | 76 ms
81,096 KB |
testcase_38 | AC | 75 ms
80,836 KB |
ソースコード
#include<iostream> #include<string> #include<cstdio> #include<vector> #include<cmath> #include<algorithm> #include<functional> #include<iomanip> #include<queue> #include<ciso646> #include<random> #include<map> #include<set> #include<bitset> #include<stack> #include<unordered_map> #include<utility> #include<cassert> #include<complex> #include<numeric> #include<array> using namespace std; //#define int long long typedef long long ll; typedef unsigned long long ul; typedef unsigned int ui; constexpr ll mod = 998244353; const ll INF = mod * mod; typedef pair<int, int>P; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i<n;i++) #define per(i,n) for(int i=n-1;i>=0;i--) #define Rep(i,sta,n) for(int i=sta;i<n;i++) #define rep1(i,n) for(int i=1;i<=n;i++) #define per1(i,n) for(int i=n;i>=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) #define all(v) (v).begin(),(v).end() typedef pair<ll, ll> LP; typedef long double ld; typedef pair<ld, ld> LDP; const ld eps = 1e-12; const ld pi = acosl(-1.0); ll mod_pow(ll x, ll n, ll m = mod) { ll res = 1; while (n) { if (n & 1)res = res * x % m; x = x * x % m; n >>= 1; } return res; } struct modint { ll n; modint() :n(0) { ; } modint(ll m) :n(m) { if (n >= mod)n %= mod; else if (n < 0)n = (n % mod + mod) % mod; } operator int() { return n; } }; bool operator==(modint a, modint b) { return a.n == b.n; } modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; } modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; } modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; } modint operator+(modint a, modint b) { return a += b; } modint operator-(modint a, modint b) { return a -= b; } modint operator*(modint a, modint b) { return a *= b; } modint operator^(modint a, ll n) { if (n == 0)return modint(1); modint res = (a * a) ^ (n / 2); if (n % 2)res = res * a; return res; } ll inv(ll a, ll p) { return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p); } modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); } const int max_n = 1 << 22; modint fact[max_n], factinv[max_n]; void init_f() { fact[0] = modint(1); for (int i = 0; i < max_n - 1; i++) { fact[i + 1] = fact[i] * modint(i + 1); } factinv[max_n - 1] = modint(1) / fact[max_n - 1]; for (int i = max_n - 2; i >= 0; i--) { factinv[i] = factinv[i + 1] * modint(i + 1); } } modint comb(int a, int b) { if (a < 0 || b < 0 || a < b)return 0; return fact[a] * factinv[b] * factinv[a - b]; } modint calc(int n, int s) { if (n == 0 && s == 0)return 1; else if (n == 0)return 0; return comb(n - 1 + s + s, s) - comb(n - 1 + s + s, s - 1); } vector<int> le[1 << 17]; vector<int> ri[1 << 17]; void solve() { int n, m, a, b; cin >> n >> m >> a >> b; a--; b--; vector<int> l(m), r(m); rep(i, m) { cin >> l[i] >> r[i]; l[i]--; r[i]--; le[l[i]].push_back(r[i] + 1); ri[r[i]+1].push_back(l[i]); } vector<int> dist(n + 1, mod); queue<int> q; rep(i, a + 1) { q.push(i); dist[i] = 0; } while (!q.empty()) { int id = q.front(); q.pop(); for (int to : le[id]) { if (dist[id] + 1 < dist[to]) { dist[to] = dist[id] + 1; q.push(to); } } for (int to : ri[id]) { if (dist[id] + 1 < dist[to]) { dist[to] = dist[id] + 1; q.push(to); } } } int ans = mod; for (int i = b + 1; i <= n; i++)ans = min(ans, dist[i]); if (ans == mod)ans = -1; cout << ans << "\n"; } signed main() { ios::sync_with_stdio(false); cin.tie(0); //cout << fixed << setprecision(15); //init_f(); //init(); //expr(); //int t; cin >> t; rep(i, t) solve(); return 0; }