#include<bits/stdc++.h>
using namespace std;
const int MAXN = 202020;
long long X, N, M, W, T;
long long S[MAXN];
long long D[MAXN], C[MAXN];
// used water before kickout
long long nw[MAXN];
//1~(i-1) customer minimum value when ith person do not kicked
// -(C_1+...+C_i)+ WV[i] customer's required value.
long long DP[MAXN];
// drank water of ith customer if none was kicked
long long WV[MAXN];
int pv[MAXN];
// min li-chao tree
struct Line
{
long long a;
long long b;
};
const long long INFV = (long long)1e18;
Line emptyl = {INFV, INFV};
struct Node
{
long long s, e;
Node* l;
Node* r;
Line v;
Node(long long _s, long long _e)
:s(_s), e(_e), l(nullptr), r(nullptr), v(emptyl)
{
}
long long getv(int x)
{
if(v.a==INFV) return -INFV;
long long ans = v.a*x+v.b;
long long m = (s+e)>>1;
if(x<=m && l) ans = min(ans, l->getv(x));
if(x>m && r) ans = min(ans, r->getv(x));
return ans;
}
void setv(Line x)
{
if(v.a==INFV && v.b==INFV)
{
v = x;
return;
}
if(s==e)
{
if((long double)s*v.a+v.b > (long double)s*x.a+x.b)
swap(v, x);
return;
}
long long m = (s+e)>>1;
long double mp = m+0.5;
if(mp*v.a+v.b > mp*x.a+x.b)
swap(v, x);
if(v.a == x.a) return;
if(v.a < x.a)
{
if(!l) l = new Node(s, m);
l->setv(x);
return;
}
else
{
if(!r) r = new Node(m+1, e);
r->setv(x);
return;
}
}
};
long long do_dp()
{
Node* root = new Node(-INFV, INFV);
DP[0] = 0; root->setv({-0, DP[0]});
for(int i=1; i<=M+1; ++i)
{
DP[i] = DP[i-1]; // not kicking (i-1)th customer
if(nw[i] != -1) // if can start kicking strategy,
{
DP[i] = min(DP[i], root->getv(nw[i])+(i-1)*nw[i]);
/*
for(int j=i-2; j>=0; --j) //not kicking jth customer, kicking all
DP[i] = min(DP[i], DP[j]+(i-j-1)*nw[i]);
*/
}
if(pv[i] != 0) //kick through pv player and let what they want.
{
//cout << "!" << i << " " << pv[i] << endl;
DP[i] = min(DP[i], DP[pv[i]] - WV[pv[i]] +C[pv[i]] + (i-pv[i])*nw[i]);
}
DP[i] += -C[i] + WV[i];
root->setv({-i, DP[i]});
//printf("%d %lld %lld\n", i, nw[i], DP[i]);
}
long long ans = DP[M+1]; //basic DP value;
//we remove C_1...C_M
for(int i=1; i<=M; ++i) ans += C[i];
// WV[M+1] is defined as 0
// we should add bus drivers' cost
ans += W*(1+X/T);
return ans;
}
int main()
{
cin >> X >> N >> M >> W >> T;
for(int i=0; i<N; ++i) cin >> S[i];
vector<pair<long long, long long> > VDC;
for(int i=0; i<M; ++i)
{
long long d, c;
cin >> d >> c;
VDC.emplace_back(d, c);
}
sort(VDC.begin(), VDC.end());
for(int i=1; i<=M; ++i)
{
tie(D[i], C[i]) = VDC[i-1];
WV[i] = W*(1+(X-D[i])/T);
//printf("%d: %lld %lld\n", i, WV[i], C[i]);
}
S[N] = X;
sort(S, S+N+1);
memset(nw, -1, sizeof nw);
set<int> SS;
for(int i=0; i<=N; ++i)
{
long long kickout_water = W*(S[i]/T);
int kick_index = lower_bound(D+1, D+1+M, S[i]%T) - D;
//printf("%lld %d\n", kickout_water, kick_index);
// we will decide whether kick 1~kick_index
if(kick_index == 1) continue;
if(nw[kick_index] != -1) continue;
nw[kick_index] = kickout_water;
SS.insert(kick_index);
auto it = SS.find(kick_index);
if(it != SS.begin())
pv[kick_index] = *(--it);
}
printf("%lld\n", do_dp());
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 2 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 3 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 4 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1944 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1936 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2040 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1916 KB |
Output is correct |
| 16 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 17 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2040 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1908 KB |
Output is correct |
| 21 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 22 |
Incorrect |
3 ms |
1912 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 2 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 3 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 4 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1944 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1936 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2040 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1916 KB |
Output is correct |
| 16 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 17 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2040 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1908 KB |
Output is correct |
| 21 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 22 |
Incorrect |
3 ms |
1912 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 2 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 3 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 4 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1944 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1936 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2040 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1916 KB |
Output is correct |
| 16 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 17 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2040 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1908 KB |
Output is correct |
| 21 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 22 |
Incorrect |
3 ms |
1912 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 2 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 3 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 4 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 5 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 6 |
Correct |
3 ms |
1944 KB |
Output is correct |
| 7 |
Correct |
3 ms |
1936 KB |
Output is correct |
| 8 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 9 |
Correct |
3 ms |
1940 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2040 KB |
Output is correct |
| 12 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 13 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1916 KB |
Output is correct |
| 16 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 17 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 18 |
Correct |
3 ms |
2040 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1908 KB |
Output is correct |
| 21 |
Correct |
3 ms |
1912 KB |
Output is correct |
| 22 |
Incorrect |
3 ms |
1912 KB |
Output isn't correct |
