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Submission #752645

# Submission time Handle Problem Language Result Execution time Memory
752645 2023-06-03T11:11:31 Z I_love_Daneliya Bank (IZhO14_bank) C++17
100 / 100
 383 ms 181056 KB 
// Problem: X - Bank

#include <bits/stdc++.h>
using namespace std ;

#define ff first
#define ss second
#define ll long long
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define ones(x) __builtin_popcount(x)
#define remove(v)  v.erase(unique(all(v)), v.end())
#define rep(i, a, b) for(int i = a; i <= b; i++)
#define per(i, a, b) for(int i = a; i >= b; i--)

#ifdef local
#include "C:\debug.h"
#else
#define dbg(x...) 42
#endif

#define int ll

const int N = 1e5 + 2 ;
const int P = 29 ;
const int MOD = 1e9 + 7 ;

int n , m , a[21] , b[21] , pref[21] , dp[22][(1 << 20) + 1];

int go(int i , int mask , int cur) {
    if(cur == pref[i]) {
        dbg(mask , pref[i]) ;
        dp[i][mask] = 1 ;
        i++ ;
    }
    if(i > n) {
        cout << "YES\n" ;
        exit(0) ;
    }
    if(~dp[i][mask]) return dp[i][mask] ;
    int ans = 0 ;
    rep(j , 0 , m - 1) {
        if(!(mask >> j & 1) && cur + b[j + 1] <= pref[i]) {
            ans |= go(i , mask ^ (1 << j) , cur + b[j + 1]) ;
        }
    }
    dp[i][mask] = ans ;
    return ans ;
}

void solve(){
    memset(*dp, -1, sizeof(dp)) ;
    cin >> n >> m ;
    rep(i , 1 , n) cin >> a[i] ;
    rep(i , 1 , n) pref[i] = pref[i - 1] + a[i] ;
    rep(i , 1 , m) cin >> b[i] ;
    int ok = go(1, 0, 0) ;
    cout << "NO\n" ;
}

signed main () {
    // freopen(".in","r",stdin) ;
    // freopen(".out","w",stdout) ;
	ios::sync_with_stdio(false) ;
	cin.tie(0) ;
	int test = 1 ;
	// cin >> test ; 
	for(int i = 1 ; i <= test ; i++) {
		solve() ;
	}
}

Compilation message

bank.cpp: In function 'long long int go(long long int, long long int, long long int)':
bank.cpp:23:19: warning: statement has no effect [-Wunused-value]
   23 | #define dbg(x...) 42
      |                   ^~
bank.cpp:36:9: note: in expansion of macro 'dbg'
   36 |         dbg(mask , pref[i]) ;
      |         ^~~
bank.cpp: In function 'void solve()':
bank.cpp:61:9: warning: unused variable 'ok' [-Wunused-variable]
   61 |     int ok = go(1, 0, 0) ;
      |         ^~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 180848 KB Output is correct
2 Correct 74 ms 180752 KB Output is correct
3 Correct 69 ms 180796 KB Output is correct
4 Correct 67 ms 180812 KB Output is correct
5 Correct 70 ms 180884 KB Output is correct
6 Correct 80 ms 180768 KB Output is correct
7 Correct 70 ms 180828 KB Output is correct
8 Correct 68 ms 180812 KB Output is correct
9 Correct 277 ms 180872 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 180836 KB Output is correct
2 Correct 78 ms 181056 KB Output is correct
3 Correct 82 ms 180868 KB Output is correct
4 Correct 75 ms 180872 KB Output is correct
5 Correct 78 ms 180768 KB Output is correct
6 Correct 69 ms 180812 KB Output is correct
7 Correct 71 ms 180880 KB Output is correct
8 Correct 69 ms 180796 KB Output is correct
9 Correct 68 ms 180832 KB Output is correct
10 Correct 77 ms 180784 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 180824 KB Output is correct
2 Correct 71 ms 180860 KB Output is correct
3 Correct 73 ms 180776 KB Output is correct
4 Correct 79 ms 180772 KB Output is correct
5 Correct 68 ms 180872 KB Output is correct
6 Correct 72 ms 180864 KB Output is correct
7 Correct 78 ms 180836 KB Output is correct
8 Correct 68 ms 180760 KB Output is correct
9 Correct 74 ms 180856 KB Output is correct
10 Correct 73 ms 180848 KB Output is correct
11 Correct 74 ms 180836 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 180848 KB Output is correct
2 Correct 74 ms 180752 KB Output is correct
3 Correct 69 ms 180796 KB Output is correct
4 Correct 67 ms 180812 KB Output is correct
5 Correct 70 ms 180884 KB Output is correct
6 Correct 80 ms 180768 KB Output is correct
7 Correct 70 ms 180828 KB Output is correct
8 Correct 68 ms 180812 KB Output is correct
9 Correct 277 ms 180872 KB Output is correct
10 Correct 77 ms 180836 KB Output is correct
11 Correct 78 ms 181056 KB Output is correct
12 Correct 82 ms 180868 KB Output is correct
13 Correct 75 ms 180872 KB Output is correct
14 Correct 78 ms 180768 KB Output is correct
15 Correct 69 ms 180812 KB Output is correct
16 Correct 71 ms 180880 KB Output is correct
17 Correct 69 ms 180796 KB Output is correct
18 Correct 68 ms 180832 KB Output is correct
19 Correct 77 ms 180784 KB Output is correct
20 Correct 75 ms 180824 KB Output is correct
21 Correct 71 ms 180860 KB Output is correct
22 Correct 73 ms 180776 KB Output is correct
23 Correct 79 ms 180772 KB Output is correct
24 Correct 68 ms 180872 KB Output is correct
25 Correct 72 ms 180864 KB Output is correct
26 Correct 78 ms 180836 KB Output is correct
27 Correct 68 ms 180760 KB Output is correct
28 Correct 74 ms 180856 KB Output is correct
29 Correct 73 ms 180848 KB Output is correct
30 Correct 74 ms 180836 KB Output is correct
31 Correct 82 ms 180764 KB Output is correct
32 Correct 68 ms 180820 KB Output is correct
33 Correct 68 ms 180844 KB Output is correct
34 Correct 69 ms 180756 KB Output is correct
35 Correct 84 ms 180768 KB Output is correct
36 Correct 73 ms 180776 KB Output is correct
37 Correct 75 ms 180820 KB Output is correct
38 Correct 70 ms 180916 KB Output is correct
39 Correct 71 ms 180780 KB Output is correct
40 Correct 79 ms 180780 KB Output is correct
41 Correct 67 ms 180812 KB Output is correct
42 Correct 137 ms 180976 KB Output is correct
43 Correct 73 ms 180796 KB Output is correct
44 Correct 73 ms 180784 KB Output is correct
45 Correct 75 ms 180868 KB Output is correct
46 Correct 69 ms 180804 KB Output is correct
47 Correct 70 ms 180804 KB Output is correct
48 Correct 71 ms 180864 KB Output is correct
49 Correct 71 ms 180772 KB Output is correct
50 Correct 67 ms 180772 KB Output is correct
51 Correct 77 ms 180776 KB Output is correct
52 Correct 74 ms 180856 KB Output is correct
53 Correct 69 ms 180812 KB Output is correct
54 Correct 71 ms 180824 KB Output is correct
55 Correct 72 ms 180772 KB Output is correct
56 Correct 68 ms 180840 KB Output is correct
57 Correct 383 ms 180944 KB Output is correct
58 Correct 68 ms 180812 KB Output is correct