結果
| 問題 | No.3459 Defeat Slimes |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2026-02-28 14:23:00 |
| 言語 | C++23 (gcc 15.2.0 + boost 1.89.0) |
| 結果 |
AC
|
| 実行時間 | 262 ms / 3,000 ms |
| コード長 | 2,746 bytes |
| 記録 | |
| コンパイル時間 | 3,968 ms |
| コンパイル使用メモリ | 352,844 KB |
| 実行使用メモリ | 28,976 KB |
| 最終ジャッジ日時 | 2026-02-28 14:23:16 |
| 合計ジャッジ時間 | 13,380 ms |
|
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 * 3 |
| other | AC * 30 |
ソースコード
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define ld long double
using LL = long long; using ULL = unsigned long long;
using VI = vector<int>; using VVI = vector<VI>; using VVVI = vector<VVI>;
using VL = vector<LL>; using VVL = vector<VL>; using VVVL = vector<VVL>;
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 VC = vector<char>; using VS = vector<string>; using VVC = vector<VC>;
using PII = pair<int,int>; using PLL = pair<LL,LL>; using PDD = pair<double,double>; using PIL = pair<int,LL>;
using MII = map<int,int>; using MLL = map<LL,LL>;
using SI = set<int>; using SL = set<LL>;
using MSI = multiset<int>; using MSL = multiset<LL>;
template<class T> using MAXPQ = priority_queue<T>;
template<class T> using MINPQ = priority_queue< T, vector<T>, greater<T> >;
const ll MOD = 1000000007;
const ll MOD2 = 998244353;
const ll INF = 1LL << 60;
#define PI 3.14159265358979323846
#define FOR(i, a, b) for(int i = (a); i < (b); ++i)
#define REP(i, n) FOR(i, 0, n)
#define EACH(e, v) for(auto &e : v)
#define RITR(it, v) for(auto it = (v).rbegin(); it != (v).rend(); ++it)
#define ALL(v) v.begin(),v.end()
vector<ll> x8={1,1,1,0,0,-1,-1,-1},y8={1,0,-1,1,-1,1,0,-1};
int dx4[4]={1,-1,0,0}, dy4[4]={0,0,1,-1};
/*
memo
-uf,RMQ(segtree),BIT,BIT2,SegTree,SegTreeLazy
-isprime,Eratosthenes,gcdlcm,factorize,divisors,modpow,moddiv
nCr(+modnCr,inverse,extend_euclid.powmod),tobaseB,tobase10
-dijkstra,Floyd,bellmanford,sccd,topological,treediamiter
-compress1,compress2,rotate90
-co,ci,fo1,fo2,fo3,fo4
-bitsearch,binaryserach
-bfs
-SegTreedec,SegTreeLazydec
*/
using T = tuple<ll,ll,ll>;
int main(){
cin.tie(0);
ios_base::sync_with_stdio(0);
ll N,Y,Z; cin >> N >> Y >> Z;
VL C(N),L(N),X(N);
for(ll i = 0; i < N; i++){
cin >> C[i] >> L[i] >> X[i];
}
vector<PLL> slime;
for(ll i = 0; i < N; i++){
slime.push_back(PLL{L[i],i});
}
set<ll> st;
for(ll i = 0; i < N; i++){
st.insert(L[i]);
}
st.insert(Z);
sort(ALL(slime));
MAXPQ<PLL> q;
ll j = 0,ans = 0;
while(Y < Z){
while(j < N and slime[j].first <= Y){
auto [l,id] = slime[j];
ll c = C[id];
ll x = X[id];
q.push({x,c});
j++;
}
if(!q.size()) break;
auto [x,c] = q.top();
q.pop();
auto it = st.upper_bound(Y);
ll to = *it;
ll need = (to-Y+x-1)/x;
ll kill = min(need,c);
Y += kill*x;
ans += kill;
if(c > kill) q.push({x,c-kill});
}
cout << (Y < Z? -1:ans) << '\n';
}