oj.uz

답안 #208571

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
208571 2020-03-11T16:51:11 Z fr_klr Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 240 ms 20820 KB 
//You can't fill the hole inside you with money, drugs and cars
#include<bits/stdc++.h>
using namespace std;
 
long long n, m;
vector<long long> v, a, b;
 
void create(int st, int en, vector<long long> &w){
    int sz = en - st;
    w.push_back(0);
    for(int mask = 1; mask < (1 << sz); mask++)
        w.push_back(w[mask - (mask & -mask)] + v[st + __builtin_ctz(mask)]);
 
}
 
long long inp(){
    long long A;
    cin >> A;
    return A;
}
 
void input(){
    cin >> n >> m;
    for(int i = 0; i < n; i++)
        v.push_back(inp());
}
 
long long matches(int p1 = 0, int p2 = b.size() - 1, long long ans = 0){
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
 
    for(; p2 >= 0 and p1 < a.size(); p1++){
        while(p2 >= 0 and a[p1] + b[p2] > m)
            p2--;
        ans += (p2 + 1);
    }
    return ans;
}
 
long long solve(){
    int mid = n / 2;
    create(0, mid, a);
    create(mid, n, b);
 
    return matches();
}
 
int main(){
    input();
    cout << solve();
}

Compilation message

bobek.cpp: In function 'long long int matches(int, int, long long int)':
bobek.cpp:32:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(; p2 >= 0 and p1 < a.size(); p1++){
                       ~~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 256 KB Output is correct

Subtask #2
10.0 / 10.0

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

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 256 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 2032 KB Output is correct
2 Correct 57 ms 5480 KB Output is correct
3 Correct 235 ms 20816 KB Output is correct
4 Correct 58 ms 5476 KB Output is correct
5 Correct 13 ms 1648 KB Output is correct
6 Correct 10 ms 1012 KB Output is correct
7 Correct 19 ms 1644 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 2924 KB Output is correct
2 Correct 23 ms 2028 KB Output is correct
3 Correct 89 ms 10592 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 8 ms 1012 KB Output is correct
6 Correct 18 ms 1644 KB Output is correct
7 Correct 16 ms 1648 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 45 ms 3560 KB Output is correct
2 Correct 84 ms 6624 KB Output is correct
3 Correct 85 ms 6624 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 41 ms 6752 KB Output is correct
6 Correct 187 ms 20816 KB Output is correct
7 Correct 91 ms 6752 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 173 ms 12760 KB Output is correct
2 Correct 26 ms 2032 KB Output is correct
3 Correct 10 ms 1012 KB Output is correct
4 Correct 5 ms 380 KB Output is correct
5 Correct 8 ms 1012 KB Output is correct
6 Correct 173 ms 12756 KB Output is correct
7 Correct 16 ms 1644 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 2028 KB Output is correct
2 Correct 57 ms 5448 KB Output is correct
3 Correct 10 ms 1012 KB Output is correct
4 Correct 10 ms 1012 KB Output is correct
5 Correct 50 ms 6624 KB Output is correct
6 Correct 23 ms 2036 KB Output is correct
7 Correct 222 ms 20816 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 228 ms 20820 KB Output is correct
2 Correct 24 ms 2032 KB Output is correct
3 Correct 10 ms 1012 KB Output is correct
4 Correct 240 ms 20820 KB Output is correct
5 Correct 58 ms 10588 KB Output is correct
6 Correct 16 ms 1648 KB Output is correct
7 Correct 29 ms 2924 KB Output is correct