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Submission #705354

# Submission time Handle Problem Language Result Execution time Memory
705354 2023-03-04T06:12:45 Z vjudge1 Bank (IZhO14_bank) C++17
19 / 100
 185 ms 8404 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[(1 << 20) + 1];

int go(int i , int mask , int cur) {
    if(cur == pref[i]) {
        dbg(mask , pref[i]) ;
        dp[mask] = 1 ;
        i++ ;
    }
    if(i > n) {
        cout << "YES\n" ;
        exit(0) ;
    }
    if(~dp[mask]) return dp[mask] ;
    int ans = 0 ;
    rep(j , 0 , m - 1) {
        if(!(mask >> j & 1)) {
            ans |= go(i , mask ^ (1 << j) , cur + b[j + 1]) ;
        }
    }
    dp[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) ;
    // if(go(1, 0, 0)) {
        // cout << "YES\n" ;
    // }else{
        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 3 ms 8404 KB Output is correct
2 Correct 4 ms 8404 KB Output is correct
3 Correct 3 ms 8404 KB Output is correct
4 Correct 4 ms 8404 KB Output is correct
5 Correct 179 ms 8404 KB Output is correct
6 Correct 3 ms 8404 KB Output is correct
7 Correct 4 ms 8404 KB Output is correct
8 Correct 6 ms 8404 KB Output is correct
9 Correct 185 ms 8404 KB Output is correct

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 8404 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 8404 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8404 KB Output is correct
2 Correct 4 ms 8404 KB Output is correct
3 Correct 3 ms 8404 KB Output is correct
4 Correct 4 ms 8404 KB Output is correct
5 Correct 179 ms 8404 KB Output is correct
6 Correct 3 ms 8404 KB Output is correct
7 Correct 4 ms 8404 KB Output is correct
8 Correct 6 ms 8404 KB Output is correct
9 Correct 185 ms 8404 KB Output is correct
10 Incorrect 4 ms 8404 KB Output isn't correct
11 Halted 0 ms 0 KB -