제출 #595045

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
595045		MadokaMagicaFan	비스킷 담기 (IOI20_biscuits)	C++14	0 / 100	3 ms	316 KiB

biscuits

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using vi = vector<int>;
using pi = pair<int,int>;

#define all(v)          v.begin(),v.end()
#define sort(v)         sort(all(v))
#define endl            '\n'
#define forn(i,n)       for(int i = 0; i < n; ++i)
#define forbe(i,b,e)    for(int i = b; i < e; ++i)
#define forr(i,n)       for(int i = n-1; i >= 0; --i)
#define sz(v)           ((int)v.size())
#define pb              push_back
#define f               first
#define s               second

ll count_tastiness(ll x, vector<ll> a){
    int k = sz(a);
    ll ans = 0;

    int mval = 100000;

    ll rem;

    int t;

    forbe(i,0, mval+1) {
        if (i >= (1ll<<(k+1))) break;

        ++ans;

        rem = 0;
        t = 1;
        forn(j, 25) {
            rem >>= 1;
            if (j < k) rem += a[j];
//            cout << i << ' ' << j << ' ' << rem << endl;
            if ((((i>>j)^1)&1)) continue;
//            cout << i << endl;
            if (rem < x) {
                t = 0;
                --ans;
//                cout << i << endl;
                break;
            }
            rem -= x;
        }

//        if (t)
//            cout << i << endl;
    }

    return ans;
}

#ifdef ONPC
void solve() {
    int k, x;
    cin >> k >> x;

    vector<ll> a(k);

    forn(i,k)
        cin >> a[i];

    cout << count_tastiness(x,a) << endl;
}

int main() {
    freopen("in", "r", stdin);
//    ios_base::sync_with_stdio(0);cin.tie(0);
    solve();
}
#endif

컴파일 시 표준 에러 (stderr) 메시지

biscuits.cpp: In function 'll count_tastiness(ll, std::vector<long long int>)':
biscuits.cpp:28:9: warning: variable 't' set but not used [-Wunused-but-set-variable]
   28 |     int t;
      |         ^

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23