oj.uz

Submission #17945

# Submission time Handle Problem Language Result Execution time Memory
17945 2016-01-13T08:50:43 Z Adilkhan Bank (IZhO14_bank) C++
71 / 100
 1000 ms 4860 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 == 20) {
    	assert(0);
    	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

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 392 KB Output is correct
4 Correct 3 ms 596 KB Output is correct
5 Correct 79 ms 4636 KB Output is correct
6 Correct 2 ms 4636 KB Output is correct
7 Correct 2 ms 4636 KB Output is correct
8 Correct 69 ms 4636 KB Output is correct
9 Correct 81 ms 4716 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4716 KB Output is correct
2 Correct 2 ms 4716 KB Output is correct
3 Correct 2 ms 4716 KB Output is correct
4 Correct 2 ms 4716 KB Output is correct
5 Correct 2 ms 4716 KB Output is correct
6 Correct 2 ms 4716 KB Output is correct
7 Correct 2 ms 4716 KB Output is correct
8 Correct 2 ms 4716 KB Output is correct
9 Correct 2 ms 4716 KB Output is correct
10 Correct 2 ms 4716 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4716 KB Output is correct
2 Correct 3 ms 4716 KB Output is correct
3 Correct 3 ms 4716 KB Output is correct
4 Correct 3 ms 4716 KB Output is correct
5 Correct 3 ms 4716 KB Output is correct
6 Correct 3 ms 4716 KB Output is correct
7 Correct 3 ms 4716 KB Output is correct
8 Correct 3 ms 4716 KB Output is correct
9 Correct 3 ms 4716 KB Output is correct
10 Correct 3 ms 4716 KB Output is correct
11 Correct 3 ms 4716 KB Output is correct

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 392 KB Output is correct
4 Correct 3 ms 596 KB Output is correct
5 Correct 79 ms 4636 KB Output is correct
6 Correct 2 ms 4636 KB Output is correct
7 Correct 2 ms 4636 KB Output is correct
8 Correct 69 ms 4636 KB Output is correct
9 Correct 81 ms 4716 KB Output is correct
10 Correct 2 ms 4716 KB Output is correct
11 Correct 2 ms 4716 KB Output is correct
12 Correct 2 ms 4716 KB Output is correct
13 Correct 2 ms 4716 KB Output is correct
14 Correct 2 ms 4716 KB Output is correct
15 Correct 2 ms 4716 KB Output is correct
16 Correct 2 ms 4716 KB Output is correct
17 Correct 2 ms 4716 KB Output is correct
18 Correct 2 ms 4716 KB Output is correct
19 Correct 2 ms 4716 KB Output is correct
20 Correct 3 ms 4716 KB Output is correct
21 Correct 3 ms 4716 KB Output is correct
22 Correct 3 ms 4716 KB Output is correct
23 Correct 3 ms 4716 KB Output is correct
24 Correct 3 ms 4716 KB Output is correct
25 Correct 3 ms 4716 KB Output is correct
26 Correct 3 ms 4716 KB Output is correct
27 Correct 3 ms 4716 KB Output is correct
28 Correct 3 ms 4716 KB Output is correct
29 Correct 3 ms 4716 KB Output is correct
30 Correct 3 ms 4716 KB Output is correct
31 Correct 73 ms 4788 KB Output is correct
32 Correct 71 ms 4788 KB Output is correct
33 Correct 624 ms 4788 KB Output is correct
34 Correct 93 ms 4788 KB Output is correct
35 Correct 86 ms 4788 KB Output is correct
36 Correct 69 ms 4788 KB Output is correct
37 Correct 97 ms 4860 KB Output is correct
38 Correct 82 ms 4860 KB Output is correct
39 Correct 69 ms 4860 KB Output is correct
40 Correct 121 ms 4860 KB Output is correct
41 Correct 69 ms 4860 KB Output is correct
42 Execution timed out 1073 ms 4860 KB Time limit exceeded
43 Halted 0 ms 0 KB -