#pragma GCC optimize "-O3"
#pragma GCC optimize("Ofast")
#pragma GCC optimization ("unroll-loops")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define NumberOfOnes __builtin_popcount
#define LSOne(S) (S & (-S))
#define ll long long
#define two pair<int,int>
#define twoll pair<ll,ll>
#define four pair<two,two>
#define pb push_back
#define eb emplace_back
#define mk make_pair
#define y1 y1922
#define INF 1000000000000000000
#define P 1000000007
#define lmax 1000000000
#define nn 1000003
#define ff first.first
#define fs first.second
#define sf second.first
#define ss second.second
#define f first
#define s second
#define vi vector<int>
#define vll vector<ll>
#define vtwo vector<two>
#define ALL(container) (container).begin(), (container).end()
#define sz(container) (int)(container.size())
#define max(a,b) ((a)>(b)?(a):(b))
#define min(a,b) ((a)<(b)?(a):(b))
#define mid(a,b) (a+b>>1)
#define minN 0
#define maxN 10000000
#define na(x) ((x)<P?(x):(x)-P)
#define ab(a) (-(a)<(a)?(a):-(a))
#define FAST std::ios::sync_with_stdio(false)
#define xRand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define rnd rng
#define IT iterator
typedef
tree<
int,// aq pair<int,int> shegidzlia
null_type,
less/*_equal*/<int>,// aqac
rb_tree_tag,
tree_order_statistics_node_update>
ordered_set;
// '_equal' mashin ginda roca multiset gchirdeba
template<class key, class value,class cmp = std::less<key>>
using ordered_map = tree<key, value, cmp, rb_tree_tag, tree_order_statistics_node_update>;
ordered_map<int, int> my_map;
inline int rin(){
int x=0,w=1;char ch=getchar();
while ((ch<'0'||ch>'9')&&ch!='-') ch=getchar();
if (ch=='-') w=0,ch=getchar();
while (ch>='0'&&ch<='9') x=(x<<3)+(x<<1)+ch-'0',ch=getchar();
return w?x:-x;
}
inline int bin(){
int x=0;char ch=getchar();
while (ch<'0'||ch>'9') ch=getchar();
while (ch>='0'&&ch<='9') x=(x<<3)+(x<<1)+ch-'0',ch=getchar();
return x;
}
const int maxn = 3e5+10;
ll f1[maxn], f2[maxn];
int main(){FAST;xRand;
//ifstream cin("school.in");
//ofstream cout("school.out");
two a[maxn];
int n, A, B;
cin >> n >> A >> B;
for(int i = 1; i <= n; i++) {
cin >> a[i].f >> a[i].s;
}
sort(a+1, a+n+1, [] (two a, two b) -> bool {return a.f - a.s > b.f - b.s;});
priority_queue<int, vector<int>, greater<int> > pq;
ll sum = 0;;
for(int i = 1; i <= n; i++) {
sum += a[i].f;
pq.push(a[i].f);
if(pq.size() > A) {
sum -= pq.top();
pq.pop();
}
f1[i] = sum;
}
while(! pq.empty()) pq.pop(); sum = 0;
for(int i = n; i >= 1; i--) {
sum += a[i].s;
pq.push(a[i].s);
if(pq.size() > B) {
sum -= pq.top();
pq.pop();
}
f2[i] = sum;
}
ll mx = 0;
for(int i = A; i <= n-B; i++)
mx = max(mx, f1[i] + f2[i+1]);
cout << mx << endl;
}
/*
* *
* * * *
* * * *
* * * *
* * * * *
* * * *
* * * *
* * *
* *
*/
Compilation message
school.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
#pragma GCC optimization ("unroll-loops")
school.cpp: In function 'int main()':
school.cpp:90:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pq.size() > A) {
~~~~~~~~~~^~~
school.cpp:96:2: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
while(! pq.empty()) pq.pop(); sum = 0;
^~~~~
school.cpp:96:32: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while'
while(! pq.empty()) pq.pop(); sum = 0;
^~~
school.cpp:102:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(pq.size() > B) {
~~~~~~~~~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 7 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 8 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 9 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 10 |
Correct |
7 ms |
2808 KB |
Output is correct |
| 11 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 12 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 13 |
Correct |
22 ms |
3868 KB |
Output is correct |
| 14 |
Correct |
42 ms |
4984 KB |
Output is correct |
| 15 |
Correct |
71 ms |
6992 KB |
Output is correct |
| 16 |
Correct |
88 ms |
8308 KB |
Output is correct |
| 17 |
Correct |
112 ms |
9176 KB |
Output is correct |
| 18 |
Correct |
126 ms |
9764 KB |
Output is correct |
| 19 |
Correct |
134 ms |
10356 KB |
Output is correct |
| 20 |
Correct |
151 ms |
11508 KB |
Output is correct |
