結果

問題 No.1619 Coccinellidae
ユーザー parentheses
提出日時 2021-07-22 22:51:50
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 10 ms / 2,000 ms
コード長 4,738 bytes
コンパイル時間 1,801 ms
コンパイル使用メモリ 197,880 KB
最終ジャッジ日時 2025-01-23 07:11:33
ジャッジサーバーID
(参考情報)
judge5 / judge4
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ファイルパターン 結果
sample AC * 1
other AC * 16
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ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
// --------------------------------------------------------
template<class T> bool chmax(T& a, const T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> bool chmin(T& a, const T b) { if (b < a) { a = b; return 1; } return 0; }
#define FOR(i,l,r) for (ll i = (l); i < (r); ++i)
#define RFOR(i,l,r) for (ll i = (r)-1; (l) <= i; --i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define ALL(c) (c).begin(), (c).end()
#define RALL(c) (c).rbegin(), (c).rend()
#define SORT(c) sort(ALL(c))
#define RSORT(c) sort(RALL(c))
#define MIN(c) *min_element(ALL(c))
#define MAX(c) *max_element(ALL(c))
#define SUMLL(c) accumulate(ALL(c), 0LL)
#define COUNT(c,v) count(ALL(c),(v))
#define SZ(c) ((ll)(c).size())
#define BIT(b,i) (((b)>>(i)) & 1)
#define PCNT(b) __builtin_popcountll(b)
#define CIN(c) cin >> (c)
#define COUT(c) cout << (c) << '\n'
#define debug(x) cerr << "l." << __LINE__ << " : " << #x << " = " << (x) << '\n'
ll llceil(ll a, ll b) { return (a + b - 1) / b; }
ll bitlen(ll b) { if (b <= 0) { return 0; } return (64LL - __builtin_clzll(b)); }
string toupper(const string& S) { string T(S); REP(i,SZ(T)) T[i] = toupper(T[i]); return T; }
string tolower(const string& S) { string T(S); REP(i,SZ(T)) T[i] = tolower(T[i]); return T; }
template<class T> void cout_line(const vector<T>& ans, ll l, ll r) { for (ll i = l; i < r; i++) { if (i != l) { cout << " "; } cout << ans[i]; } cout
    << '\n'; }
template<class T> void debug_line(const vector<T>& ans, ll l, ll r, ll L = 0) { cerr << "l." << L << " :"; for (ll i = l; i < r; i++) { cerr << " "
    << ans[i]; } cerr << '\n'; }
using P = pair<ll,ll>;
using VP = vector<P>;
using VVP = vector<VP>;
using VS = vector<string>;
using VVS = vector<VS>;
using VLL = vector<ll>;
using VVLL = vector<VLL>;
using VVVLL = vector<VVLL>;
using VB = vector<bool>;
using VVB = vector<VB>;
using VVVB = vector<VVB>;
using VD = vector<double>;
using VVD = vector<VD>;
using VVVD = vector<VVD>;
using VLD = vector<ld>;
using VVLD = vector<VLD>;
using VVVLD = vector<VVLD>;
static const double EPS = 1e-10;
static const double PI = acos(-1.0);
static const ll MOD = 1000000007;
// static const ll MOD = 998244353;
static const ll INF = (1LL << 62) - 1; // 4611686018427387904 - 1
// --------------------------------------------------------
// #include <atcoder/all>
// using namespace atcoder;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(15);
ll N, M, K; cin >> N >> M >> K;
VLL A(N); iota(ALL(A),0);
A.back() = M - (N-2)*(N-1)/2;
VLL B;
ll k = 0;
while (!A.empty()) {
ll tmp = SZ(A) - 1;
if (k + tmp <= K) {
k += tmp;
B.push_back(A.back()); A.pop_back();
continue;
}
break;
}
ll t = SZ(A) - (K - k);
VLL ans;
for (ll b : B) ans.push_back(b);
ll tmp = 1;
REP(i,SZ(A)) {
if (tmp == t) ans.push_back(A.back());
if (i == SZ(A) - 1) break;
ans.push_back(A[i]);
tmp++;
}
assert(SUMLL(ans) == M);
for (ll a : ans) COUT(a);
return 0;
}
// ----- -----
//
// ■
// □
// - N
// □
// - O()
// □
// -
// □
// -
//
// ■
// (1) {1,2,3} K
// --> K
// O(N)
// {1,2,3,...,(M-f(N-1))} f(N) = N(N+1)/2
//
// (2) yyy
//
//
// -----------------------------
// ■
// - [ ]
// - [ ]
// - [ ]
// - [ ]
// - [ ]
// - [ ] DP
// - [ ]
//
// ■ ()
// - (+ /)
// -
// - (x,y bit)
// - ()
// -
// - (DP )
// -
// - ()
// - (mod )
// - ()
// - ()
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