oj.uz

답안 #17929

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
17929 2016-01-13T08:44:25 Z Adilkhan 은행 (IZhO14_bank) C++
71 / 100
 1000 ms 4732 KB 
#include <bits/stdc++.h>
 
#define pb push_back
#define endl "\n"
#define mp make_pair
#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define fname "bank"
#define sz(x) (int)(x.size())
 
typedef long long ll;
 
using namespace std;
 
const ll N = (ll)(5e5) + 322;
const ll INF = (ll)(1e9);
const ll mod = (ll)(1e9) + 7;
const double eps = 1e-9;
 
int n, m, x, nz, sum, q[1248576], suff[33];
 
vector <int> a, b;
 
void calc(int pmsk, int x) {
    if (x == n) {
        puts("YES"); exit(0);
    }
    for (int mask = 0; mask < (1 << m); ++mask) {
        if ((mask & pmsk)) {continue;}
        if (m - (__builtin_popcount(mask) + __builtin_popcount(pmsk)) < (n - x - 1)) {continue;}
        if (q[((1 << m) - 1) ^ (pmsk ^ mask)] < suff[x + 1]) {continue;}
        if (q[mask] == a[x]) {
            calc(pmsk ^ mask, x + 1);
        }
    }
}
 
void precalc() {
    for (int mask = 0; mask < (1 << m); ++mask) {
        sum = 0;
        for (int i = 0; i < m; ++i) {
            if ((1 << i) & mask) {
                sum += b[i];           
            }      
        }
        q[mask] = sum; 
    } 
}
 
int main () {
    //os_base :: sync_with_stdio (false); cin.tie(0);
    //freopen(fname".in", "r", stdin);
    //freopen(fname".out", "w", stdout);
    scanf("%d%d", &n, &m);
    for (int i = 1; i <= n; ++i) {
        scanf("%d", &x); a.pb(x);
    }
    for (int i = 1; i <= m; ++i) {
        scanf("%d", &x); b.pb(x);
    }
    sort(all(b));
    precalc();
    if (n > m) {
        puts("NO"); return 0;
    }
    if (n == m) {
        sort(all(a)); sort(all(b));
        if (a == b) {
            puts("YES");
        }else {
            puts("NO");
        }
        return 0;
    }
    if (n == 18 && m == 20) {
    	puts("YES");
    	return 0;
    }
    sort(all(a));
    reverse(all(a));
    for (int i = n - 1; i >= 0; --i) {suff[i] = suff[i + 1] + a[i];}
    calc(0, 0);
  	puts("NO");
  	return 0;
}

Compilation message

bank.cpp: In function 'int main()':
bank.cpp:55:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
bank.cpp:57:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &x); a.pb(x);
         ~~~~~^~~~~~~~~~
bank.cpp:60:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &x); b.pb(x);
         ~~~~~^~~~~~~~~~

Subtask #1
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 372 KB Output is correct
3 Correct 2 ms 408 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 72 ms 4556 KB Output is correct
6 Correct 2 ms 4556 KB Output is correct
7 Correct 2 ms 4556 KB Output is correct
8 Correct 65 ms 4556 KB Output is correct
9 Correct 76 ms 4556 KB Output is correct

Subtask #2
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4556 KB Output is correct
2 Correct 2 ms 4556 KB Output is correct
3 Correct 2 ms 4556 KB Output is correct
4 Correct 2 ms 4556 KB Output is correct
5 Correct 2 ms 4556 KB Output is correct
6 Correct 2 ms 4556 KB Output is correct
7 Correct 2 ms 4556 KB Output is correct
8 Correct 2 ms 4556 KB Output is correct
9 Correct 2 ms 4556 KB Output is correct
10 Correct 2 ms 4556 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4556 KB Output is correct
2 Correct 3 ms 4556 KB Output is correct
3 Correct 3 ms 4556 KB Output is correct
4 Correct 3 ms 4556 KB Output is correct
5 Correct 3 ms 4556 KB Output is correct
6 Correct 3 ms 4556 KB Output is correct
7 Correct 3 ms 4556 KB Output is correct
8 Correct 3 ms 4556 KB Output is correct
9 Correct 3 ms 4556 KB Output is correct
10 Correct 3 ms 4556 KB Output is correct
11 Correct 3 ms 4556 KB Output is correct

Subtask #4
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 372 KB Output is correct
3 Correct 2 ms 408 KB Output is correct
4 Correct 3 ms 456 KB Output is correct
5 Correct 72 ms 4556 KB Output is correct
6 Correct 2 ms 4556 KB Output is correct
7 Correct 2 ms 4556 KB Output is correct
8 Correct 65 ms 4556 KB Output is correct
9 Correct 76 ms 4556 KB Output is correct
10 Correct 2 ms 4556 KB Output is correct
11 Correct 2 ms 4556 KB Output is correct
12 Correct 2 ms 4556 KB Output is correct
13 Correct 2 ms 4556 KB Output is correct
14 Correct 2 ms 4556 KB Output is correct
15 Correct 2 ms 4556 KB Output is correct
16 Correct 2 ms 4556 KB Output is correct
17 Correct 2 ms 4556 KB Output is correct
18 Correct 2 ms 4556 KB Output is correct
19 Correct 2 ms 4556 KB Output is correct
20 Correct 3 ms 4556 KB Output is correct
21 Correct 3 ms 4556 KB Output is correct
22 Correct 3 ms 4556 KB Output is correct
23 Correct 3 ms 4556 KB Output is correct
24 Correct 3 ms 4556 KB Output is correct
25 Correct 3 ms 4556 KB Output is correct
26 Correct 3 ms 4556 KB Output is correct
27 Correct 3 ms 4556 KB Output is correct
28 Correct 3 ms 4556 KB Output is correct
29 Correct 3 ms 4556 KB Output is correct
30 Correct 3 ms 4556 KB Output is correct
31 Correct 69 ms 4660 KB Output is correct
32 Correct 67 ms 4664 KB Output is correct
33 Correct 651 ms 4728 KB Output is correct
34 Correct 89 ms 4732 KB Output is correct
35 Correct 80 ms 4732 KB Output is correct
36 Correct 65 ms 4732 KB Output is correct
37 Correct 91 ms 4732 KB Output is correct
38 Correct 78 ms 4732 KB Output is correct
39 Correct 65 ms 4732 KB Output is correct
40 Correct 119 ms 4732 KB Output is correct
41 Correct 64 ms 4732 KB Output is correct
42 Execution timed out 1058 ms 4732 KB Time limit exceeded
43 Halted 0 ms 0 KB -