oj.uz

Submission #114162

# Submission time Handle Problem Language Result Execution time Memory
114162 2019-05-31T03:07:58 Z Shafin666 Schools (IZhO13_school) C++14
100 / 100
 242 ms 11504 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define pii pair<int, int>
#define nyan "(=^･ω･^=)"
#define read_input         freopen("in.txt","r", stdin)
#define print_output       freopen("out.txt","w", stdout)
typedef long long ll;
typedef long double ld;
using namespace std;

const int maxn = 3e5+10;
ll f1[maxn], f2[maxn];

int main()
{
	pii a[maxn];
	int n, A, B;

	cin >> n >> A >> B;
	for(int i = 1; i <= n; i++) {
		cin >> a[i].first >> a[i].second;
	}
	sort(a+1, a+n+1, [] (pii a, pii b) -> bool {return a.first - a.second > b.first - b.second;});

	priority_queue<int, vector<int>, greater<int>> pq;

	ll sum = 0;;
	for(int i = 1; i <= n; i++) {
		sum += a[i].first;
		pq.push(a[i].first);

		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].second;
		pq.push(a[i].second);

		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;

    return 0;
}

Compilation message

school.cpp: In function 'int main()':
school.cpp:33:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(pq.size() > A) {
      ~~~~~~~~~~^~~
school.cpp:39:2: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
  while(! pq.empty()) pq.pop(); sum = 0;
  ^~~~~
school.cpp:39:32: 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:45:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(pq.size() > B) {
      ~~~~~~~~~~^~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2816 KB Output is correct
2 Correct 3 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 4 ms 2688 KB Output is correct
5 Correct 3 ms 2688 KB Output is correct
6 Correct 3 ms 2688 KB Output is correct
7 Correct 7 ms 2816 KB Output is correct
8 Correct 8 ms 2944 KB Output is correct
9 Correct 8 ms 2816 KB Output is correct
10 Correct 8 ms 2816 KB Output is correct
11 Correct 7 ms 2816 KB Output is correct
12 Correct 8 ms 2816 KB Output is correct
13 Correct 33 ms 3864 KB Output is correct
14 Correct 63 ms 5084 KB Output is correct
15 Correct 117 ms 7020 KB Output is correct
16 Correct 137 ms 8332 KB Output is correct
17 Correct 178 ms 9228 KB Output is correct
18 Correct 199 ms 9740 KB Output is correct
19 Correct 211 ms 10468 KB Output is correct
20 Correct 242 ms 11504 KB Output is correct