//Never stop trying
#include "bits/stdc++.h"
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
typedef long long ll;
#define int ll
typedef string str;
typedef long double ld;
typedef pair<int, int> pi;
#define fi first
#define se second
typedef vector<int> vi;
typedef vector<pi> vpi;
#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
const int MOD = 1e9 + 7; //998244353
const ll INF = 1e18;
const int MX = 3000 + 10;
const int nx[4] = {0, 0, 1, -1}, ny[4] = {1, -1, 0, 0}; //right left down up
template<class T> using V = vector<T>;
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
ll cdiv(ll a, ll b) { return a / b + ((a ^ b) > 0 && a % b); } // divide a by b rounded up
//constexpr int log2(int x) { return 31 - __builtin_clz(x); } // floor(log2(x))
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
ll random(ll a, ll b){
return a + rng() % (b - a + 1);
}
#ifndef LOCAL
#define cerr if(false) cerr
#endif
#define dbg(x) cerr << #x << " : " << x << endl;
#define dbgs(x,y) cerr << #x << " : " << x << " / " << #y << " : " << y << endl;
#define dbgv(v) cerr << #v << " : " << "[ "; for(auto it : v) cerr << it << ' '; cerr << ']' << endl;
#define here() cerr << "here" << endl;
void IO() {
#ifdef LOCAL
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
}
/////////////////////////ONLY CLEAN CODES ALLOWED/////////////////////////
int N,M,K,A,B,C,T;
vi S(MX);
int vis[MX][MX],memo[MX][MX];
int bs(int mx){
int l=0,r=1e9;
int x;
while(l<=r){
int m=(l+r)/2;
if(m*A>mx){
x=m;
r=m-1;
}
else l=m+1;
}
return x;
}
void precompute(){ //vis[i][n]
FOR(i,0,M-1){
int l=S[i],r=S[i+1];
int nb=0,cur=l,ans=0,rest=T-(l-1)*B;
//if((r-1)*B<=T) ans=1;
FOR(j,0,K+1) vis[i][j]=0;
if(rest<0) continue;
while(rest>0 && cur!=r && nb<K){
int x=bs(rest);
if(cur+x>r) x=r-cur;
if(C*x>rest){
/*ans+=x-1;
vis[i][nb]+=x-1;*/
break;
}
cur+=x; ans+=x-(cur==r);
nb+=(cur!=r);
rest-=C*x;
vis[i][nb]=ans;
if(cur!=r) vis[i][nb]+=min(r-cur-1,rest/A);
}
FOR(j,nb+1,K+1) vis[i][j]=ans;
FOR(j,0,K+1){
vis[i][j]+=((r-1)*B<=T);
//cout << vis[i][j] << ' ';
} //cout << endl;
//break; //!!!!!!!!!!!!!!
}
}
int solve(int i, int r){
if(i==M-1 || (S[i]-1)*B>T) return 0;
int &ind=memo[i][r];
if(ind!=-1) return ind;
int ans=0;
FOR(j,0,r+1) ckmax(ans,solve(i+1,r-j)+vis[i][j]);
return ind=ans;
}
int32_t main() {
boost; IO();
cin>>N>>M>>K>>A>>B>>C>>T; K-=M;
FOR(i,0,M) cin>>S[i];
precompute();
memset(memo,-1,sizeof(memo));
cout << solve(0,K) << endl;
return 0;
}
//Change your approach
Compilation message
semiexpress.cpp: In function 'll bs(ll)':
semiexpress.cpp:72:9: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
72 | return x;
| ^
semiexpress.cpp: In function 'void precompute()':
semiexpress.cpp:87:10: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
87 | if(cur+x>r) x=r-cur;
| ~~~^~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
37 ms |
71276 KB |
Output is correct |
| 2 |
Incorrect |
38 ms |
71404 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
37 ms |
71276 KB |
Output is correct |
| 2 |
Incorrect |
38 ms |
71404 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
37 ms |
71276 KB |
Output is correct |
| 2 |
Incorrect |
38 ms |
71404 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
