Submission #1113238

#	Time	Username	Problem	Language	Result	Execution time	Memory
1113238		ljtunas	Topical (NOI23_topical)	C++14	100 / 100	637 ms	226304 KiB

Main

// author : anhtun_hi , nqg
#include <bits/stdc++.h>
#define ll long long
#define ii pair<ll, ll>
#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define reset(h, v)    memset(h, v, sizeof h)
#define Forv(i, a)     for(auto& i : a)
#define For(i, a, b)   for(int i = a; i <= b; ++i)
#define Ford(i, a, b)  for(int i = a; i >= b; --i)
#define c_bit(i)     __builtin_popcountll(i)
#define Bit(mask, i)    ((mask >> i) & 1LL)
#define onbit(mask, i)  ((mask) bitor (1LL << i))
#define offbit(mask, i) ((mask) &~ (1LL << i))
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
using namespace std;
namespace std {
    template <typename T, int D>
    struct _vector : public vector <_vector <T, D - 1>> {
        static_assert(D >= 1, "Dimension must be positive!");
        template <typename... Args>
        _vector(int n = 0, Args... args) : vector <_vector <T, D - 1>> (n, _vector <T, D - 1> (args...)) {}
    };
    template <typename T> struct _vector <T, 1> : public vector <T> {
        _vector(int n = 0, const T& val = T()) : vector <T> (n, val) {}
    };
    template <class A, class B> bool minimize(A &a, B b){return a > b ? a = b, true : false;}
    template <class A, class B> bool maximize(A &a, B b){return a < b ? a = b, true : false;}
}
const int dx[] = {0, 0, +1, -1}, dy[] = {-1, +1, 0, 0}, LOG = 20, base = 311, inf = 1e9 + 5;
const int MAXN = 1e6 + 5;
const  ll  mod = 1e9 + 7;
const  ll   oo = 1e18;

#define int long long

int n, k;
vector<vector<ll>> r, u;

namespace sub1{
    bool check(){ return n == 1; }
    void Solve(){
        int ans = 1;
        For(i, 1, k) if(r[1][i] > 0) ans &= 0;
        cout << (ans == 1) ? 1 : 0 << '\n';
    }
}

namespace sub2{
    bool check() { return n <= 100 && k <= 100; }
    bool del[MAXN];
    void Solve(){
        vector<ll> rate(k + 1);
        int ans = 0;
        while (true){
            bool on = false;
            For(i, 1, n) if(!del[i]){
                bool ok = true;
                For(j, 1, k) ok &= (rate[j] >= r[i][j]);
                if(ok) {
                    ++ans;
                    For(j, 1, k) rate[j] += u[i][j];
                    on = true;
                    del[i] = true;
                }
            }
            if (!on) break;
        }
        cout << ans << '\n';
    }
}

namespace sub3{
    bool check() {return k == 1;}
    ii a[MAXN];
    void Solve(){
         For(i, 1, n) a[i] = {r[i][1], u[i][1]};
         sort(a + 1, a + n + 1);
         int ans = 0; ll sum = 0;
         For(i, 1, n) {
            if (sum >= a[i].fi) ++ ans, sum += a[i].se;
            else break;
         }
         cout << ans << '\n';
    }
}

namespace sub4{
    vector<ii> vec[MAXN];
    ll s[MAXN];int cnt[MAXN], id[MAXN];
    void Solve(){
        For(i, 1, n) For(j, 1, k){
            vec[j].push_back({r[i][j], i});
        }
        For(i, 1, k) sort(all(vec[i]));
        int ans = 0;
        For(i, 1, k) id[i] = 1;
        while (ans < n){
            vector<int> List;
            For(i, 1, k){
                while(id[i] <= n && s[i] >= vec[i][id[i] - 1].fi){
                    ++cnt[vec[i][id[i] - 1].se];
                    if(cnt[vec[i][id[i] - 1].se] == k) List.push_back(vec[i][id[i] - 1].se);
                    ++id[i];
                }
            }
            if (List.empty()) break;
            Forv(i, List) {
                ++ans;
                For(j, 1, k) s[j] += u[i][j];
            }
        }
        cout << ans << '\n';
    }
}

void Solve() {
    cin >> n >> k;
    r.resize(n + 5, vector<ll>(k + 5));
    u.resize(n + 5, vector<ll>(k + 5));
    For(i, 1, n) For(j, 1, k) cin >> r[i][j];
    For(i, 1, n) For(j, 1, k) cin >> u[i][j];
     sub4::Solve();
}

signed main() {
    cin.tie(0) -> sync_with_stdio(0);
    if(fopen("NOI23_topical.inp", "r")) {
        freopen("NOI23_topical.inp", "r", stdin);
        freopen("NOI23_topical.out", "w", stdout);
    }

    int t = 1;
//    cin >> t;
    while(t --) Solve();

    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void sub1::Solve()':
Main.cpp:46:43: warning: second operand of conditional expression has no effect [-Wunused-value]
   46 |         cout << (ans == 1) ? 1 : 0 << '\n';
      |                                           ^
Main.cpp:46:36: warning: third operand of conditional expression has no effect [-Wunused-value]
   46 |         cout << (ans == 1) ? 1 : 0 << '\n';
      |                                  ~~^~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:130:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  130 |         freopen("NOI23_topical.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:131:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  131 |         freopen("NOI23_topical.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 28 / 28
• Subtask 3: 21 / 21
• Subtask 4: 39 / 39