結果
問題 | No.2142 Segment Zero |
ユーザー | karinohito |
提出日時 | 2022-12-02 23:11:23 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 786 ms / 2,000 ms |
コード長 | 2,673 bytes |
コンパイル時間 | 4,566 ms |
コンパイル使用メモリ | 269,476 KB |
実行使用メモリ | 57,984 KB |
最終ジャッジ日時 | 2024-10-10 01:40:17 |
合計ジャッジ時間 | 21,583 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 572 ms
57,984 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 728 ms
57,856 KB |
testcase_05 | AC | 723 ms
57,856 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 576 ms
57,984 KB |
testcase_08 | AC | 776 ms
57,856 KB |
testcase_09 | AC | 575 ms
57,984 KB |
testcase_10 | AC | 775 ms
57,984 KB |
testcase_11 | AC | 774 ms
57,856 KB |
testcase_12 | AC | 786 ms
57,984 KB |
testcase_13 | AC | 779 ms
57,856 KB |
testcase_14 | AC | 779 ms
57,984 KB |
testcase_15 | AC | 778 ms
57,856 KB |
testcase_16 | AC | 776 ms
57,984 KB |
testcase_17 | AC | 641 ms
48,768 KB |
testcase_18 | AC | 117 ms
16,128 KB |
testcase_19 | AC | 111 ms
14,592 KB |
testcase_20 | AC | 421 ms
33,664 KB |
testcase_21 | AC | 384 ms
37,376 KB |
testcase_22 | AC | 568 ms
43,136 KB |
testcase_23 | AC | 96 ms
14,464 KB |
testcase_24 | AC | 166 ms
20,864 KB |
testcase_25 | AC | 197 ms
24,192 KB |
testcase_26 | AC | 389 ms
41,600 KB |
testcase_27 | AC | 422 ms
43,520 KB |
testcase_28 | AC | 326 ms
28,672 KB |
testcase_29 | AC | 411 ms
33,280 KB |
testcase_30 | AC | 553 ms
42,368 KB |
testcase_31 | AC | 383 ms
41,088 KB |
testcase_32 | AC | 164 ms
19,200 KB |
testcase_33 | AC | 59 ms
10,496 KB |
testcase_34 | AC | 206 ms
24,576 KB |
testcase_35 | AC | 755 ms
56,576 KB |
testcase_36 | AC | 143 ms
15,360 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #include <atcoder/all> using namespace atcoder; using ll = long long; using vll = vector<ll>; using vvll = vector<vll>; using vvvll = vector<vvll>; using vvvvll = vector<vvvll>; using vvvvvll = vector<vvvvll>; using vvvvvvll = vector<vvvvvll>; using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>; using vvvvb = vector<vvvb>; using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>; using vvvvd = vector<vvvd>; using vvvvvd = vector<vvvvd>; #define all(A) A.begin(),A.end() #define ALL(A) A.begin(),A.end() #define rep(i, n) for (ll i = 0; i < (ll) (n); i++) using pqr = priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>>; template<class T> bool chmax(T& p, T q, bool C = 1) { if (C == 0 && p == q) { return 1; } if (p < q) { p = q; return 1; } else { return 0; } } template<class T> bool chmin(T& p, T q, bool C = 1) { if (C == 0 && p == q) { return 1; } if (p > q) { p = q; return 1; } else { return 0; } } ll gcd(ll(a), ll(b)) { if (a == 0)return b; if (b == 0)return a; ll c = a; while (a % b != 0) { c = a % b; a = b; b = c; } return b; } ll sqrtz(ll N) { ll L = 0; ll R = sqrt(N) + 10000; while (abs(R - L) > 1) { ll mid = (R + L) / 2; if (mid * mid <= N)L = mid; else R = mid; } return L; } using mint = modint998244353; //using Mint = modint; vector<mint> fact, factinv, inv; const ll mod = 998244353; void prenCkModp(ll n) { fact.resize(n + 5); factinv.resize(n + 5); inv.resize(n + 5); fact[0] = fact[1] = 1; factinv[0] = factinv[1] = 1; inv[1] = 1; for (ll i = 2; i < n + 5; i++) { fact[i] = (fact[i - 1] * i); inv[i] = mod - (inv[mod % i] * (mod / i)); factinv[i] = (factinv[i - 1] * inv[i]); } } mint nCk(ll n, ll k) { if (n < k || k < 0) return 0; return fact[n] * (factinv[k] * factinv[n - k]); } int main() { ll N,K; cin>>N>>K; ll S=N*(N+1)/2; rep(i,N+1){ ll d=(i)*(i+1)/2; if(K==d||S-d==K){ cout<<1<<endl; return 0; } if(S-K==i){ cout<<1<<endl; return 0; } } vll A(N+1,0); set<ll> SS; rep(i,N){ A[i+1]=A[i]+(i+1); SS.insert(A[i]); SS.insert(A[i+1]); } rep(i,N+1){ ll d=A[i]; if(SS.count(d+(S-K))){ cout<<1<<endl; return 0; } } cout<<2<<endl; return 0; }