#include <bits/stdc++.h>
using namespace std;
long long a , b , c , t;
long long m;
priority_queue <pair <long long , pair <long long,long long> > > h;
long long v[5010] , w[5010];
set <long long> express;
set <long long> :: iterator it;
long long modul (long long x){
return max(x , -x);
}
long long check (long long p1 , long long p2 , long long mid){
return modul ((mid - 1 - p1) * a - ( (mid - p1) * c + (p2 - 1 - mid) * a));
}
long long calcul (long long x , long long y){
long long st , dr , mid , nr;
long long timp;
/// cate ar deveni accesibile daca as pune undeva intre x si y
/// pun pe prima dintre x si y care nu e accesibila
if (express.find(x) != express.end())
timp = (x - 1) * b; /// e statie express
else { /// e statie semi_express
st = 1;
dr = m;
while (st <= dr){
mid = (st + dr) / 2;
if (w[mid] < x)
st = mid + 1;
else dr = mid - 1;
}
st--;
nr = w[st];
timp = (nr - 1) * b + (x - nr) * c;
}
/// timp = timpul pana la x
/// cb intre x si y unde as pune statia
st = x + 1;
dr = y - 1;
while (st <= dr){
mid = (st + dr) / 2;
if (timp + (mid - x) * a <= t)
st = mid + 1;
else dr = mid - 1;
}
/// solutia e in st!!!
if (x + 1 > y - 1 || st == y)
return 0; /// nu ajuta cu nmc
/// pui o statie semi_express in st
timp = timp + (st - x) * c; /// timp pana la st
if (timp > t)
return 0;
x = st;
dr = y - 1;
while (st <= dr){
mid = (st + dr) / 2;
if (timp + (mid - x) * a <= t)
st = mid + 1;
else dr = mid - 1;
}
return max(0LL , st - x);
}
int main()
{
FILE *fin = stdin;
FILE *fout = stdout;
long long n , k , i , st , dr , mid , p , sol = 0 , elem , x , y , nr;
long long timp;
fscanf (fin,"%lld%lld%lld",&n,&m,&k);
fscanf (fin,"%lld%lld%lld%lld",&a,&b,&c,&t);
for (i = 1 ; i <= m ; i++){
fscanf (fin,"%lld",&v[i]);
w[i] = v[i];
express.insert(v[i]);
}
sort (v + 1 , v + m + 1);
for (i = 1 ; i <= m ; i++){
h.push(make_pair(calcul(v[i] , v[i+1]) , make_pair(v[i] , v[i+1])));
/// cate se aduna daca pui long longre v[i] si v[i + 1]
}
elem = m;
for (p = 1 ; p <= k - m && !h.empty() ; p++){
nr = h.top().first;
x = h.top().second.first;
y = h.top().second.second;
h.pop();
if (!nr)
break;
/// daca pun long longre p1 si p2, mi se adauga nr maxim
if (express.find(x) != express.end())
timp = (x - 1) * b; /// e statie express
else { /// e statie semi_express
it = express.lower_bound(x);
it--;
timp = (*it - 1) * b + (x - *it) * c;
}
/// timp = timpul pana la x
/// cb long longre x si y unde as pune statia
st = x + 1;
dr = y - 1;
while (st <= dr){
mid = (st + dr) / 2;
if (timp + (mid - x) * a <= t)
st = mid + 1;
else dr = mid - 1;
}
/// solutia e in st!!!
if (x + 1 > y - 1 || st == y)
continue;
v[++elem] = st;
h.push(make_pair(calcul(x , st) , make_pair(x , st)));
h.push(make_pair(calcul(st , y) , make_pair(st , y)));
}
sort (v + 1 , v + elem + 1);
for (i = 1 ; i < elem ; i++){
if (express.find(v[i]) != express.end())
timp = (v[i] - 1) * b; /// e statie express
else { /// e statie semi_express
st = 1;
dr = m;
while (st <= dr){
mid = (st + dr) / 2;
if (w[mid] < v[i])
st = mid + 1;
else dr = mid - 1;
}
st--;
nr = w[st];
timp = (nr - 1) * b + (v[i] - nr) * c;
}
st = v[i] + 1;
dr = v[i + 1] - 1;
while (st <= dr){
mid = (st + dr) / 2;
if (timp + (mid - v[i]) * a <= t)
st = mid + 1;
else dr = mid - 1;
}
sol = sol + (st - 1) - v[i];
if (st - 1 == v[i + 1])
continue;
if (express.find(v[i + 1]) != express.end())
sol = sol + ( (v[i + 1] - 1) * b <= t ); /// e statie express
else { /// e statie semi_express
st = 1;
dr = m;
while (st <= dr){
mid = (st + dr) / 2;
if (w[mid] < v[i + 1])
st = mid + 1;
else dr = mid - 1;
}
st--;
nr = w[st];
sol = sol + ( (nr - 1) * b + (v[i + 1] - nr) * c <= t);
}
}
fprintf (fout,"%lld",sol);
return 0;
}
Compilation message
semiexpress.cpp: In function 'int main()':
semiexpress.cpp:97:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
fscanf (fin,"%lld%lld%lld",&n,&m,&k);
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
semiexpress.cpp:98:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
fscanf (fin,"%lld%lld%lld%lld",&a,&b,&c,&t);
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
semiexpress.cpp:100:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
fscanf (fin,"%lld",&v[i]);
~~~~~~~^~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
256 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
256 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
256 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
256 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
256 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
4 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
256 KB |
Output is correct |
| 18 |
Correct |
4 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
256 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
256 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
256 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
4 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
256 KB |
Output is correct |
| 18 |
Correct |
4 ms |
384 KB |
Output is correct |
| 19 |
Correct |
6 ms |
512 KB |
Output is correct |
| 20 |
Correct |
6 ms |
512 KB |
Output is correct |
| 21 |
Correct |
6 ms |
512 KB |
Output is correct |
| 22 |
Correct |
6 ms |
512 KB |
Output is correct |
| 23 |
Correct |
6 ms |
640 KB |
Output is correct |
| 24 |
Correct |
6 ms |
512 KB |
Output is correct |
| 25 |
Correct |
5 ms |
384 KB |
Output is correct |
| 26 |
Correct |
6 ms |
512 KB |
Output is correct |
| 27 |
Correct |
6 ms |
512 KB |
Output is correct |
| 28 |
Correct |
6 ms |
512 KB |
Output is correct |
| 29 |
Correct |
5 ms |
384 KB |
Output is correct |
| 30 |
Correct |
6 ms |
384 KB |
Output is correct |
