oj.uz

Submission #39410

# Submission time Handle Problem Language Result Execution time Memory
39410 2018-01-14T18:24:55 Z farmersrice Ice Hockey World Championship (CEOI15_bobek) C++14
10 / 100
 1000 ms 198828 KB 
#include <bits/stdc++.h>
//#pragma GCC optimize ("O3")
//#pragma GCC target ("sse4")
#pragma GCC target ("avx,tune=native")
//Use above if bruteforcing with lots of small operations. Or just use it anytime, there's no downside. AVX is better slightly
/*
TASK: hidden
LANG: C++11
*/
using namespace std;
typedef long long ll;
typedef pair<int, int> pair2;
typedef pair<int, pair<int, int> > pair3;
typedef pair<int, pair<int, pair<int, int> > > pair4;
#define MAXN 43
#define INF 1000000000000000000LL
#define mp make_pair
#define add push_back
#define remove pop

int n;
ll values[MAXN];
ll set1[MAXN];
ll set2[MAXN];
int size1, size2;

ll m;
vector<ll> one;
vector<ll> two;

int main() {
	ios_base::sync_with_stdio(false); 
	cin.tie(NULL);

	cin >> n >> m;

	for (int i = 0; i < n; i++) {
		cin >> values[i];
	}
	sort(values, values + n);

	for (int i = 0; i < n; i++) {
		//cin >> values[i];

		if (values[i] % 2 == 0) {
			set1[size1++] = values[i];
		} else {
			set2[size2++] = values[i];
		}
	}	

	sort(set1, set1 + size1);
	sort(set2, set2 + size2);

	for (int i = 0; i < (1 << size1); i++) {
		ll sum = 0;
		for (int j = 0; j < size1; j++) {
			if (i & (1 << j)) {
				sum += set1[j];
			}
		}
		one.add(sum);
	}

	for (int i = 0; i < (1 << size2); i++) {
		ll sum = 0;
		for (int j = 0; j < size2; j++) {
			if (i & (1 << j)) {
				sum += set2[j];
			}
		}
		two.add(sum);
	}

	sort(one.rbegin(), one.rend());
	sort(two.begin(), two.end());

	assert(one.size() + two.size() < 5);

	ll answer = 0;
	int twopointer = 0;
	for (int i = 0; i < (int) (one.size()); i++) {
		while (twopointer < (int) (two.size()) && one[i] + two[twopointer] <= m) {
			twopointer++;
		}
		answer += twopointer;
	}

	cout << answer << endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2180 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 2184 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 2184 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 9 ms 2988 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 73 ms 8364 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 716 ms 51372 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 196 ms 14768 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1000 ms 198828 KB Execution timed out
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 46 ms 5552 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 469 ms 30896 KB Execution killed because of forbidden syscall gettid (186)
2 Halted 0 ms 0 KB -