Submission #1176137

#	Time	Username	Problem	Language	Result	Execution time	Memory
1176137		giabao249	Bank (IZhO14_bank)	C++20	19 / 100	67 ms	8520 KiB

bank

#include <bits/stdc++.h>
using namespace std;
using pii = pair<int,int>;
#define int long long
#define FOR(i , a , b) for(int i = a ; i < b ; i++)
#define REP(i , a , b) for(int i = a ; i <= b ; i++)
#define FORD(i , a , b) for(int i = a ; i >= b ; i--)
#define FORE(i, v) for (__typeof((v).begin()) i = (v).begin(); i != (v).end(); i++)
#define el '\n'
#define all(x) x.begin(), x.end()
#define bit(x) (1 << (x))
#define log(...) logger(#__VA_ARGS__, __VA_ARGS__)
const int inf = 1e18;
const int base = 311;
const int mod = 1e9 + 7;
template <typename... Args> void logger(string vars, Args&&... values);
template<class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
//Think
const int N = 20;
string name = "Task";
int f[bit(N)];
int n , m , x;
int cost[N] , staff[N];
void GOTO_OLP2025() {
    cin >> n >> m >> x;
    FOR(i , 0 , m) cin >> cost[i];
    FOR(mask , 0 , bit(m)){
        int s = 0;
        FOR(i , 0 , m){
            if(bit(i) & mask) s += cost[i];
        }
        f[mask] = s;
    }
    FOR(mask , 0 , bit(m)){
        if(f[mask] == x){
            cout << "YES" << el;
            return;
        }
//        log(f[mask]);
    }
    cout << "NO" << el;
}

void file(string s){
    string in = s + ".in";
    string out = s + ".out";
    if(fopen(in.c_str() , "r")){
        freopen(in.c_str() , "r" , stdin);
    }
}
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    file(name);
    //int t ; cin >> t;
    //while(t--)
    GOTO_OLP2025();
    return 0;
}
template <typename... Args>
void logger(string vars, Args&&... values) {
    cerr << "[";
    stringstream ss(vars);
    string var;
    vector<string> varNames;
    while (getline(ss, var, ',')) {
        while (!var.empty() && var.front() == ' ') var.erase(0, 1);
        varNames.push_back(var);
    }
    string delim = "";
    size_t i = 0;
    ((cerr << delim << varNames[i++] << " = " << values, delim = ", "), ...);
    cerr << "]\n";
}

Compilation message (stderr)

bank.cpp: In function 'void file(std::string)':
bank.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |         freopen(in.c_str() , "r" , stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

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