제출 #990972

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
990972		mindiyak	은행 (IZhO14_bank)	C++14	71 / 100	1069 ms	348 KiB

bank

#include <bits/stdc++.h>
#include <string>
#include <iostream>
#include <cmath>
#include <numeric>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<int, int> pl;
typedef pair<ld, ld> pd;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<ld> vd;
typedef vector<long> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
#define FOR(i, a, b) for (int i = a; i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i, a, b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i, a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto &a : x)
#define uid(a, b) uniform_int_distribution<int>(a, b)(rng)
#define len(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define fst first
#define nl endl
#define sec second
#define lb lower_bound
#define ub upper_bound
#define aint(x) x.begin(), x.end()
#define raint(x) x.rbegin(), x.rend()
#define ins insert
const int MOD = 1000000007;
void init()
{
#ifndef ONLINE_JUDGE
    freopen("input.in", "r", stdin);
    freopen("output.out", "w", stdout);
#endif
}
void fastIO()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
}

bool can = false;
int n,m;

void dfs(vi people,vi money,int sum,int sum2){
    if(can)return;
    if(sum == 0){
        can = true;
        return;
    }
    if(sum2<sum)return;
    if(money.size()==0)return;
    bool temp_can = true;
    int mon = money[0];
    sum2-=mon;
    money.erase(money.begin());
    dfs(people,money,sum,sum2);
    FOR(i,0,n){
        if(people[i]!=0)temp_can = false;
        if(people[i]>=mon){
            people[i]-=mon;
            dfs(people,money,sum-mon,sum2);
            people[i]+=mon;
        }
    }
    if(temp_can)can = true;
}

void solve()
{
    cin>>n>>m;can = false;
    int sum = 0,sum2 = 0;
    vi people(n);vi money(m);
    FOR(i,0,n)cin>>people[i];
    FOR(i,0,m)cin>>money[i];
    FOR(i,0,n)sum+=people[i];
    FOR(i,0,m)sum2+=money[i];
    sort(people.rbegin(),people.rend());
    sort(money.rbegin(),money.rend());

    dfs(people,money,sum,sum2);

    if(can)cout << "YES" << endl;
    else cout << "NO" << endl;
    
}


int main()
{
    fastIO();
    // init();
    int t = 1;
    // cin >> t;
    while (t--)
        solve();
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'void init()':
bank.cpp:41:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |     freopen("input.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen("output.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 0 / 29