oj.uz

답안 #991660

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
991660 2024-06-02T18:20:16 Z mnbvcxz123 Ice Hockey World Championship (CEOI15_bobek) C++17
100 / 100
 296 ms 22980 KB 
#include <cstdio>
#include <vector>
#include <algorithm>
typedef long long lint;
using namespace std;
 
vector<lint> v1, v2;
 
lint a[41], m;
 
void dfs(lint x, int pos, int lim, vector<lint> &v){
    if(pos == lim){
        v.push_back(x);
        return;
    }
    dfs(x + a[pos], pos+1, lim, v);
    dfs(x, pos + 1, lim, v);
}
 
int n;
 
int main(){
    scanf("%d %lld",&n,&m);
    for(int i=0; i<n; i++){
        scanf("%lld",&a[i]);
    }
    dfs(0, 0, n/2, v1);
    dfs(0, n/2, n, v2);
    sort(v2.begin(), v2.end());
    lint ret = 0;
    for(auto &i : v1){
        ret += (int)(upper_bound(v2.begin(), v2.end(), m - i) - v2.begin());
    }
    printf("%lld",ret);
}

Compilation message

bobek.cpp: In function 'int main()':
bobek.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     scanf("%d %lld",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~
bobek.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |         scanf("%lld",&a[i]);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 420 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 428 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 1880 KB Output is correct
2 Correct 60 ms 5320 KB Output is correct
3 Correct 291 ms 21188 KB Output is correct
4 Correct 55 ms 5324 KB Output is correct
5 Correct 5 ms 1492 KB Output is correct
6 Correct 4 ms 984 KB Output is correct
7 Correct 6 ms 1492 KB Output is correct

Subtask #6
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 2764 KB Output is correct
2 Correct 18 ms 1880 KB Output is correct
3 Correct 121 ms 11464 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 2 ms 984 KB Output is correct
6 Correct 6 ms 1492 KB Output is correct
7 Correct 5 ms 1492 KB Output is correct

Subtask #7
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 3580 KB Output is correct
2 Correct 84 ms 7056 KB Output is correct
3 Correct 82 ms 8344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 30 ms 6868 KB Output is correct
6 Correct 92 ms 21016 KB Output is correct
7 Correct 42 ms 7248 KB Output is correct

Subtask #8
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 178 ms 13388 KB Output is correct
2 Correct 16 ms 1880 KB Output is correct
3 Correct 5 ms 984 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 2 ms 984 KB Output is correct
6 Correct 91 ms 13608 KB Output is correct
7 Correct 6 ms 1492 KB Output is correct

Subtask #9
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 16 ms 1880 KB Output is correct
2 Correct 54 ms 5548 KB Output is correct
3 Correct 5 ms 984 KB Output is correct
4 Correct 5 ms 984 KB Output is correct
5 Correct 32 ms 7760 KB Output is correct
6 Correct 13 ms 1880 KB Output is correct
7 Correct 112 ms 22980 KB Output is correct

Subtask #10
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 199 ms 21184 KB Output is correct
2 Correct 18 ms 1880 KB Output is correct
3 Correct 5 ms 984 KB Output is correct
4 Correct 296 ms 22716 KB Output is correct
5 Correct 41 ms 11972 KB Output is correct
6 Correct 6 ms 1492 KB Output is correct
7 Correct 11 ms 2768 KB Output is correct