Submission #1003511

#	Time	Username	Problem	Language	Result	Execution time	Memory
1003511		mansur	Semiexpress (JOI17_semiexpress)	C++17	100 / 100	1 ms	624 KiB

semiexpress

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
 
#include<bits/stdc++.h>	
 
using namespace std;
 
#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;                                                                                  
using pll = pair<ll, ll>;                                                                                    
                                                                                                             
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());                                      
     
vector<pii> rid = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
vector<pii> dir = {{-1, -1}, {-1, 1}, {1, -1}, {1, 1}};
 
const int N = 5e6 + 1, mod = 998244353;
 
const ll inf = 1e18;
 
double eps = 1e-15;
                                                
bool flg = 0;

ll f(ll x, ll y, ll cur, ll t, ll a) {
	ll v = (t - cur) / a;
	v = min(y - 1, x + v);
	return v - x + 1;
}

void slv() {
	ll n, m, k;
	cin >> n >> m >> k;
	ll a, b, c;
	cin >> a >> b >> c;
	ll t, s[m + 2];
	cin >> t;
	for (int i = 1; i <= m; i++) cin >> s[i];
	ll cur = 0, ans = -1;
	s[m + 1] = n + 1;
	set<array<ll, 4>> h;
	for (int i = 1; i <= m; i++) {
		if (i > 1) cur += (s[i] - s[i - 1]) * b;
		h.insert({inf, s[i], s[i + 1], cur});	
   	}
   	while (k-- && sz(h)) {                                                                  
		auto [v, x, y, ct] = (*--h.end());
		h.erase(--h.end());
		bool is = 1;
		if (ct > t) v = 0;
		else v = f(x, y, ct, t, a);
		ans += v;
		x += v;
		ct += c * v;
		if (ct > t || x == y) continue;
		h.insert({f(x, y, ct, t, a), x, y, ct});  			
   	}
   	cout << ans;
}

main() {
	//freopen("input.txt", "r", stdin);                                                                                     
	//freopen("output.txt", "w", stdout);                                                                                      
	ios_base::sync_with_stdio(0);	                                                                                       
	cin.tie(0);
	int tp = 1;
	if (flg) cin >> tp;
	while (tp--) {  	
		slv();
	}
}
//wenomechainsama      

Compilation message (stderr)

semiexpress.cpp: In function 'void slv()':
semiexpress.cpp:55:8: warning: unused variable 'is' [-Wunused-variable]
   55 |   bool is = 1;
      |        ^~
semiexpress.cpp: At global scope:
semiexpress.cpp:67:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   67 | main() {
      | ^~~~

• Subtask 1: 18 / 18
• Subtask 2: 30 / 30
• Subtask 3: 52 / 52