# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
995113 |
2024-06-08T13:07:52 Z |
fuad27 |
Holiday (IOI14_holiday) |
C++17 |
|
2345 ms |
14604 KB |
#include"holiday.h"
#include <bits/stdc++.h>
using namespace std;
struct DS {
multiset<int> s1, s2;
long long ans=0;
void add(int val) {
if(s1.size() and val > (*s1.begin())) {
s1.insert(val);
ans+=val;
}
else s2.insert(val);
}
long long get(int x) {
if(x<=0)return 0;
while(s1.size()>x) {
ans-=(*s1.begin());
s2.insert(*s1.begin());
s1.erase(s1.begin());
}
while(s1.size() < x and s2.size()) {
long long val = *(--s2.end());
s1.insert(val);
ans+=val;
s2.erase(s2.find(val));
}
return ans;
}
void erase(int x) {
if(s2.find(x)!=s2.end())s2.erase(s2.find(x));
else {
ans-=x;
s1.erase(s1.find(x));
}
}
} ds;
int n, start, d;
vector<int> attraction;
vector<long long> F, S, F2, S2;
void calcf1(int l, int r, int pl, int pr) {
if(l>r)return;
int mid = (l+r)/2;
long long res=0;
int opt = pl;
for(int i = pl;i<=pr;i++) {
ds.add(attraction[i]);
long long val = ds.get(mid-abs(i-start));
if(val >= res) {
res=val;
opt=i;
}
}
F[mid] = res;
for(int i = opt;i<=pr;i++)ds.erase(attraction[i]);
calcf1(mid+1, r, opt, pr);
for(int i = pl;i<opt;i++)ds.erase(attraction[i]);
calcf1(l, mid-1, pl, opt);
}
void calcs1(int l, int r, int pl, int pr) {
if(l>r)return;
int mid = (l+r)/2;
long long res=0;
int opt = pl;
for(int i = pl;i<=pr;i++) {
ds.add(attraction[i]);
long long val = ds.get(mid-2*abs(i-start));
if(val >= res) {
res=val;
opt=i;
}
}
S[mid] = res;
for(int i = opt;i<=pr;i++)ds.erase(attraction[i]);
calcs1(mid+1, r, opt, pr);
for(int i = pl;i<opt;i++)ds.erase(attraction[i]);
calcs1(l, mid-1, pl, opt);
}
//
void calcf2(int l, int r, int pl, int pr) {
if(l>r)return;
if(pl > pr) {
for(int i = l;i<=r;i++) {
F2[i] = 0;
}
}
int mid = (l+r)/2;
long long res=0;
int opt = pr;
for(int i = pr;i>=pl;i--) {
ds.add(attraction[i]);
long long val = ds.get(mid-abs(i-start));
if(val >= res) {
res=val;
opt=i;
}
}
F2[mid] = res;
for(int i = pl;i<=opt;i++)ds.erase(attraction[i]);
calcf2(mid+1, r, pl, opt);
for(int i = opt+1;i<=pr;i++)ds.erase(attraction[i]);
calcf2(l, mid-1, opt, pr);
}
void calcs2(int l, int r, int pl, int pr) {
if(l>r)return;
if(pl > pr) {
for(int i = l;i<=r;i++) {
S2[i] = 0;
}
}
int mid = (l+r)/2;
long long res=0;
int opt = pr;
for(int i = pr;i>=pl;i--) {
ds.add(attraction[i]);
long long val = ds.get(mid-2*abs(i-start));
if(val >= res) {
res=val;
opt=i;
}
}
S2[mid] = res;
for(int i = pl;i<=opt;i++)ds.erase(attraction[i]);
calcs2(mid+1, r, pl, opt);
for(int i = opt+1;i<=pr;i++)ds.erase(attraction[i]);
calcs2(l, mid-1, opt, pr);
}
long long int findMaxAttraction(int _n, int _start, int _d, int _attraction[]) {
n=_n;
start=_start;
d=_d;
S.resize(d+1);
F.resize(d+1);
S2.resize(d+1);
F2.resize(d+1);
attraction=vector<int>(_attraction, _attraction+_n);
calcf1(1, _d, _start, _n-1);
calcs1(1, _d, _start, _n-1);
calcf2(1, _d, 0, _start-1);
calcs2(1, _d, 0, _start-1);
long long res=0;
for(int i = 0;i<=d;i++) {
res=max(res, F[i]+S2[d-i]);
res=max(res, S[i]+F2[d-i]);
}
return res;
}
Compilation message
holiday.cpp: In member function 'long long int DS::get(int)':
holiday.cpp:16:20: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
16 | while(s1.size()>x) {
| ~~~~~~~~~^~
holiday.cpp:21:21: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
21 | while(s1.size() < x and s2.size()) {
| ~~~~~~~~~~^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
600 KB |
Output is correct |
2 |
Correct |
1 ms |
600 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
600 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
948 ms |
12164 KB |
Output is correct |
2 |
Correct |
632 ms |
12380 KB |
Output is correct |
3 |
Correct |
980 ms |
12376 KB |
Output is correct |
4 |
Correct |
1055 ms |
12116 KB |
Output is correct |
5 |
Correct |
2345 ms |
10048 KB |
Output is correct |
6 |
Correct |
811 ms |
8024 KB |
Output is correct |
7 |
Correct |
1338 ms |
6324 KB |
Output is correct |
8 |
Correct |
1442 ms |
6740 KB |
Output is correct |
9 |
Correct |
563 ms |
9372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
1116 KB |
Output is correct |
2 |
Correct |
16 ms |
1116 KB |
Output is correct |
3 |
Correct |
16 ms |
1064 KB |
Output is correct |
4 |
Correct |
28 ms |
856 KB |
Output is correct |
5 |
Correct |
27 ms |
972 KB |
Output is correct |
6 |
Correct |
7 ms |
860 KB |
Output is correct |
7 |
Correct |
6 ms |
860 KB |
Output is correct |
8 |
Correct |
6 ms |
860 KB |
Output is correct |
9 |
Correct |
6 ms |
864 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
930 ms |
13648 KB |
Output is correct |
2 |
Correct |
2336 ms |
14604 KB |
Output is correct |
3 |
Correct |
518 ms |
3156 KB |
Output is correct |
4 |
Correct |
19 ms |
856 KB |
Output is correct |
5 |
Correct |
7 ms |
860 KB |
Output is correct |
6 |
Correct |
6 ms |
856 KB |
Output is correct |
7 |
Correct |
6 ms |
860 KB |
Output is correct |
8 |
Correct |
1840 ms |
5960 KB |
Output is correct |
9 |
Correct |
1820 ms |
5716 KB |
Output is correct |