oj.uz

답안 #658787

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
658787 2022-11-14T22:05:59 Z beaconmc Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 323 ms 20772 KB 
#pragma GCC optimize(" unroll-loops")
#pragma gcc optimize("Ofast")
#pragma GCC optimization("Ofast")
#pragma optimize(Ofast)
#include <bits/stdc++.h>


typedef long long ll;
using namespace std;


#define FOR(i, x, y) for(ll i=x; i<y; i++)
#define FORNEG(i, x, y) for(ll i=x; i>y; i--)
#define fast() ios_base::sync_with_stdio(false);cin.tie(NULL)

ll sus[41];

int main(){
	ll a,b,n,m;
	//map<ll, ll> aa, bb;
	vector<ll> aaa, bbb;
	vector<ll> aaa2,bbb2;

	cin >> n >> m;
	FOR(i,0,n) cin >> sus[i];

	a = n/2;
	b = (n-1)/2 + 1;

	

	FOR(i,0,1<<a){
		ll cur = 0, temp = 0, tempi = i;
		while (tempi){
			if (tempi&1) temp += sus[cur];
			cur++;
			tempi>>=1;
		}
		//aa[temp] += 1;
		aaa.push_back(temp);
	}



	FOR(i,0,1<<b){
		ll cur = a, temp = 0, tempi = i;
		while (tempi){
			if (tempi&1) temp += sus[cur];
			cur++;
			tempi>>=1;
		}

		//bb[temp] += 1;
		bbb.push_back(temp);
	}





	// ll cur = 0;

	// for (auto&i : aa){
	// 	aaa.push_back(i.first);
	// 	aaa2.push_back(i.second);

	// }
	// cur = 0;

	// for (auto&i : bb){
	// 	cur += i.second;
	// 	bbb.push_back(i.first);
	// 	bbb2.push_back(cur);
	// }
	sort(aaa.begin(), aaa.end());
	sort(bbb.begin(), bbb.end());

	ll ans = 0;

	FOR(i,0,aaa.size()){

		if (m-aaa[i] < 0) continue;

		ll lower = upper_bound(bbb.begin(), bbb.end(), m-aaa[i]) - bbb.begin();

		ans += lower;
	}
	cout << ans;




}

Compilation message

bobek.cpp:2: warning: ignoring '#pragma gcc optimize' [-Wunknown-pragmas]
    2 | #pragma gcc optimize("Ofast")
      | 
bobek.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization("Ofast")
      | 
bobek.cpp:4: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    4 | #pragma optimize(Ofast)
      | 
bobek.cpp:1:37: warning: bad option '-f unroll-loops' to pragma 'optimize' [-Wpragmas]
    1 | #pragma GCC optimize(" unroll-loops")
      |                                     ^
bobek.cpp:18:10: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]
   18 | int main(){
      |          ^
bobek.cpp: In function 'int main()':
bobek.cpp:12:35: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR(i, x, y) for(ll i=x; i<y; i++)
......
   80 |  FOR(i,0,aaa.size()){
      |      ~~~~~~~~~~~~~~                
bobek.cpp:80:2: note: in expansion of macro 'FOR'
   80 |  FOR(i,0,aaa.size()){
      |  ^~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 1956 KB Output is correct
2 Correct 79 ms 5324 KB Output is correct
3 Correct 323 ms 20716 KB Output is correct
4 Correct 76 ms 5372 KB Output is correct
5 Correct 13 ms 1484 KB Output is correct
6 Correct 8 ms 940 KB Output is correct
7 Correct 16 ms 1484 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 34 ms 2876 KB Output is correct
2 Correct 27 ms 1944 KB Output is correct
3 Correct 130 ms 10496 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 8 ms 852 KB Output is correct
6 Correct 19 ms 1484 KB Output is correct
7 Correct 17 ms 1488 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 3544 KB Output is correct
2 Correct 112 ms 6592 KB Output is correct
3 Correct 117 ms 6584 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 71 ms 6516 KB Output is correct
6 Correct 270 ms 20756 KB Output is correct
7 Correct 98 ms 6584 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 256 ms 12696 KB Output is correct
2 Correct 26 ms 1872 KB Output is correct
3 Correct 9 ms 852 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 6 ms 916 KB Output is correct
6 Correct 229 ms 12676 KB Output is correct
7 Correct 15 ms 1596 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 1872 KB Output is correct
2 Correct 74 ms 5364 KB Output is correct
3 Correct 8 ms 852 KB Output is correct
4 Correct 8 ms 852 KB Output is correct
5 Correct 77 ms 6576 KB Output is correct
6 Correct 27 ms 1872 KB Output is correct
7 Correct 282 ms 20768 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 309 ms 20712 KB Output is correct
2 Correct 27 ms 1872 KB Output is correct
3 Correct 9 ms 852 KB Output is correct
4 Correct 317 ms 20772 KB Output is correct
5 Correct 101 ms 10532 KB Output is correct
6 Correct 16 ms 1484 KB Output is correct
7 Correct 33 ms 2760 KB Output is correct