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Submission #102557

# Submission time Handle Problem Language Result Execution time Memory
102557 2019-03-25T22:38:28 Z Ort Simfonija (COCI19_simfonija) C++11
110 / 110
 140 ms 6156 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp> 
#include<functional>
#define MAX 100020
#define ll long long
 
using namespace __gnu_pbds;
using namespace std;
 
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
ordered_set o;
int n, k, x;
ll sol = 100000000000000000;

int a[MAX];
 
int main() {
	cin.sync_with_stdio(0); cin.tie(0);
	cin.exceptions(cin.failbit);
	cin >> n >> x; k = n - x;
	for(int i=0;i<n;i++) cin >> a[i];
	for(int i=0;i<n;i++) {cin >> x; a[i]-=x;}
	sort(a, a+n);
	for(int i=0;i<k;i++) o.insert(a[i]);
	ll m = 0, c = 0, nc = 0, l, r;
	if(k%2) m = k / 2;
	else m = k / 2 - 1;
	int mv = *(o.find_by_order(m));
	for(int i=0;i<k;i++) c += abs(a[i]-mv);
	ll om = mv;
	sol = min(sol,c);
	for(int i=0;i<(n-k);i++) {
		o.erase(o.find_by_order(o.order_of_key(a[i])));
		o.insert(a[i+k]);
		mv = *(o.find_by_order(m));
		l = a[i]; r = a[i+k];
		nc = c - (abs(om-l)) + (abs(mv-r));
		if(k%2==0) nc -= (mv - om);
		sol = min(sol,nc);
		c = nc; om = mv;
	}
	cout << sol;
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 6008 KB Output is correct
2 Correct 87 ms 6040 KB Output is correct
3 Correct 84 ms 6024 KB Output is correct

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 6012 KB Output is correct
2 Correct 87 ms 6068 KB Output is correct
3 Correct 78 ms 6008 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 6156 KB Output is correct
2 Correct 83 ms 5964 KB Output is correct
3 Correct 96 ms 6136 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 2784 KB Output is correct
2 Correct 86 ms 3036 KB Output is correct
3 Correct 87 ms 2808 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 4748 KB Output is correct
2 Correct 78 ms 2156 KB Output is correct
3 Correct 92 ms 3324 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 1536 KB Output is correct
2 Correct 89 ms 4600 KB Output is correct
3 Correct 88 ms 2852 KB Output is correct

Subtask #8
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 3400 KB Output is correct
2 Correct 94 ms 3204 KB Output is correct
3 Correct 101 ms 4316 KB Output is correct

Subtask #9
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 4096 KB Output is correct
2 Correct 140 ms 1396 KB Output is correct
3 Correct 87 ms 6008 KB Output is correct

Subtask #10
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 4600 KB Output is correct
2 Correct 84 ms 6024 KB Output is correct
3 Correct 98 ms 4932 KB Output is correct