oj.uz

답안 #99779

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
99779 2019-03-07T08:12:44 Z HardNut Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 562 ms 8784 KB 
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int N = 1e4 + 5;
const ll INF = 1e18 + 5;
const ll mod = 1e6 + 7;
const int tx[] = {1, -1, 0, 0}, ty[] = {0, 0, 1, -1};
const ll bs = 31;

int n;
ll m;
ll a[45], ans;
vector <ll> vec;

main() {
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    int nn = n / 2;
    for (int mask = 0; mask < (1 << nn); mask++) {
        ll res = 0;
        for (int i = 0; i < nn; i++) {
            if ((mask >> i) & 1) {
                res += a[i + 1];
            }
        }
        vec.push_back(res);
    }
    sort(vec.begin(), vec.end());
    for (int mask = 0; mask < (1 << (n - nn)); mask++) {
        ll res = 0;
        for (int i = 0; i < n - nn; i++) {
            if ((mask >> i) & 1) {
                res += a[i + nn + 1];
            }
        }
        ll it = upper_bound(vec.begin(), vec.end(), m - res) - vec.begin();
        ans += it;
    }
    cout << ans;
    return 0;
}
/**
5
1 2 1 1 1
*/

Compilation message

bobek.cpp:20:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 256 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 3 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 3 ms 256 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 3 ms 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 256 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 1020 KB Output is correct
2 Correct 102 ms 2548 KB Output is correct
3 Correct 562 ms 8784 KB Output is correct
4 Correct 102 ms 2548 KB Output is correct
5 Correct 19 ms 1020 KB Output is correct
6 Correct 10 ms 768 KB Output is correct
7 Correct 16 ms 1020 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 1528 KB Output is correct
2 Correct 37 ms 1020 KB Output is correct
3 Correct 214 ms 4592 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 11 ms 768 KB Output is correct
6 Correct 22 ms 1144 KB Output is correct
7 Correct 18 ms 1020 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 1528 KB Output is correct
2 Correct 175 ms 2548 KB Output is correct
3 Correct 173 ms 2696 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 97 ms 2548 KB Output is correct
6 Correct 264 ms 8740 KB Output is correct
7 Correct 83 ms 2548 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 388 ms 4556 KB Output is correct
2 Correct 29 ms 1020 KB Output is correct
3 Correct 12 ms 768 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 10 ms 768 KB Output is correct
6 Correct 234 ms 4724 KB Output is correct
7 Correct 18 ms 1020 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 34 ms 1020 KB Output is correct
2 Correct 110 ms 2548 KB Output is correct
3 Correct 11 ms 768 KB Output is correct
4 Correct 11 ms 768 KB Output is correct
5 Correct 138 ms 2548 KB Output is correct
6 Correct 25 ms 1020 KB Output is correct
7 Correct 269 ms 8668 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 444 ms 8692 KB Output is correct
2 Correct 36 ms 1020 KB Output is correct
3 Correct 11 ms 640 KB Output is correct
4 Correct 561 ms 8608 KB Output is correct
5 Correct 146 ms 4584 KB Output is correct
6 Correct 17 ms 1020 KB Output is correct
7 Correct 32 ms 1584 KB Output is correct